refactor: `tests` is now `tests/libgit2`

Like we want to separate libgit2 and utility source code, we want to
separate libgit2 and utility tests.  Start by moving all the tests into
libgit2.

35 files changed, 5580 insertions, 0 deletions

diff --git a/tests/libgit2/object/blob/filter.c b/tests/libgit2/object/blob/filter.c
new file mode 100644
index 000000000..00b553e71
--- /dev/null
+++ b/tests/libgit2/object/blob/filter.c
@@ -0,0 +1,149 @@
+#include "clar_libgit2.h"
+#include "posix.h"
+#include "blob.h"
+
+static git_repository *g_repo = NULL;
+
+#define CRLF_NUM_TEST_OBJECTS	9
+
+static const char *g_crlf_raw[CRLF_NUM_TEST_OBJECTS] = {
+	"",
+	"foo\nbar\n",
+	"foo\rbar\r",
+	"foo\r\nbar\r\n",
+	"foo\nbar\rboth\r\nreversed\n\ragain\nproblems\r",
+	"123\n\000\001\002\003\004abc\255\254\253\r\n",
+	"\xEF\xBB\xBFThis is UTF-8\n",
+	"\xEF\xBB\xBF\xE3\x81\xBB\xE3\x81\x92\xE3\x81\xBB\xE3\x81\x92\r\n\xE3\x81\xBB\xE3\x81\x92\xE3\x81\xBB\xE3\x81\x92\r\n",
+	"\xFE\xFF\x00T\x00h\x00i\x00s\x00!"
+};
+
+static off64_t g_crlf_raw_len[CRLF_NUM_TEST_OBJECTS] = {
+	-1, -1, -1, -1, -1, 17, -1, -1, 12
+};
+
+static git_oid g_crlf_oids[CRLF_NUM_TEST_OBJECTS];
+
+static git_str g_crlf_filtered[CRLF_NUM_TEST_OBJECTS] = {
+	{ "", 0, 0 },
+	{ "foo\nbar\n", 0, 8 },
+	{ "foo\rbar\r", 0, 8 },
+	{ "foo\nbar\n", 0, 8 },
+	{ "foo\nbar\rboth\nreversed\n\ragain\nproblems\r", 0, 38 },
+	{ "123\n\000\001\002\003\004abc\255\254\253\n", 0, 16 },
+	{ "\xEF\xBB\xBFThis is UTF-8\n", 0, 17 },
+	{ "\xEF\xBB\xBF\xE3\x81\xBB\xE3\x81\x92\xE3\x81\xBB\xE3\x81\x92\n\xE3\x81\xBB\xE3\x81\x92\xE3\x81\xBB\xE3\x81\x92\n", 0, 29 },
+	{ "\xFE\xFF\x00T\x00h\x00i\x00s\x00!", 0, 12 }
+};
+
+static git_str_text_stats g_crlf_filtered_stats[CRLF_NUM_TEST_OBJECTS] = {
+	{ 0, 0, 0, 0, 0, 0, 0 },
+	{ 0, 0, 0, 2, 0, 6, 0 },
+	{ 0, 0, 2, 0, 0, 6, 0 },
+	{ 0, 0, 2, 2, 2, 6, 0 },
+	{ 0, 0, 4, 4, 1, 31, 0 },
+	{ 0, 1, 1, 2, 1, 9, 5 },
+	{ GIT_STR_BOM_UTF8, 0, 0, 1, 0, 16, 0 },
+	{ GIT_STR_BOM_UTF8, 0, 2, 2, 2, 27, 0 },
+	{ GIT_STR_BOM_UTF16_BE, 5, 0, 0, 0, 7, 5 },
+};
+
+void test_object_blob_filter__initialize(void)
+{
+	int i;
+
+	g_repo = cl_git_sandbox_init("empty_standard_repo");
+
+	for (i = 0; i < CRLF_NUM_TEST_OBJECTS; i++) {
+		if (g_crlf_raw_len[i] < 0)
+			g_crlf_raw_len[i] = strlen(g_crlf_raw[i]);
+
+		cl_git_pass(git_blob_create_from_buffer(
+			&g_crlf_oids[i], g_repo, g_crlf_raw[i], (size_t)g_crlf_raw_len[i]));
+	}
+}
+
+void test_object_blob_filter__cleanup(void)
+{
+	cl_git_sandbox_cleanup();
+}
+
+void test_object_blob_filter__unfiltered(void)
+{
+	int i;
+	git_blob *blob;
+
+	for (i = 0; i < CRLF_NUM_TEST_OBJECTS; i++) {
+		size_t raw_len = (size_t)g_crlf_raw_len[i];
+
+		cl_git_pass(git_blob_lookup(&blob, g_repo, &g_crlf_oids[i]));
+
+		cl_assert_equal_sz(raw_len, (size_t)git_blob_rawsize(blob));
+		cl_assert_equal_i(
+			0, memcmp(g_crlf_raw[i], git_blob_rawcontent(blob), raw_len));
+
+		git_blob_free(blob);
+	}
+}
+
+void test_object_blob_filter__stats(void)
+{
+	int i;
+	git_blob *blob;
+	git_str buf = GIT_STR_INIT;
+	git_str_text_stats stats;
+
+	for (i = 0; i < CRLF_NUM_TEST_OBJECTS; i++) {
+		cl_git_pass(git_blob_lookup(&blob, g_repo, &g_crlf_oids[i]));
+		cl_git_pass(git_blob__getbuf(&buf, blob));
+		git_str_gather_text_stats(&stats, &buf, false);
+		cl_assert_equal_i(
+			0, memcmp(&g_crlf_filtered_stats[i], &stats, sizeof(stats)));
+		git_blob_free(blob);
+	}
+
+	git_str_dispose(&buf);
+}
+
+void test_object_blob_filter__to_odb(void)
+{
+	git_filter_list *fl = NULL;
+	git_config *cfg;
+	int i;
+	git_blob *blob;
+	git_buf out = GIT_BUF_INIT, zeroed;
+
+	cl_git_pass(git_repository_config(&cfg, g_repo));
+	cl_assert(cfg);
+
+	git_attr_cache_flush(g_repo);
+	cl_git_append2file("empty_standard_repo/.gitattributes", "*.txt text\n");
+
+	cl_git_pass(git_filter_list_load(
+		&fl, g_repo, NULL, "filename.txt", GIT_FILTER_TO_ODB, 0));
+	cl_assert(fl != NULL);
+
+	for (i = 0; i < CRLF_NUM_TEST_OBJECTS; i++) {
+		cl_git_pass(git_blob_lookup(&blob, g_repo, &g_crlf_oids[i]));
+
+		/* try once with allocated blob */
+		cl_git_pass(git_filter_list_apply_to_blob(&out, fl, blob));
+		cl_assert_equal_sz(g_crlf_filtered[i].size, out.size);
+		cl_assert_equal_i(
+			0, memcmp(out.ptr, g_crlf_filtered[i].ptr, out.size));
+
+		/* try again with zeroed blob */
+		memset(&zeroed, 0, sizeof(zeroed));
+		cl_git_pass(git_filter_list_apply_to_blob(&zeroed, fl, blob));
+		cl_assert_equal_sz(g_crlf_filtered[i].size, zeroed.size);
+		cl_assert_equal_i(
+			0, memcmp(zeroed.ptr, g_crlf_filtered[i].ptr, zeroed.size));
+		git_buf_dispose(&zeroed);
+
+		git_blob_free(blob);
+	}
+
+	git_filter_list_free(fl);
+	git_buf_dispose(&out);
+	git_config_free(cfg);
+}
diff --git a/tests/libgit2/object/blob/fromstream.c b/tests/libgit2/object/blob/fromstream.c
new file mode 100644
index 000000000..60ff3991b
--- /dev/null
+++ b/tests/libgit2/object/blob/fromstream.c
@@ -0,0 +1,86 @@
+#include "clar_libgit2.h"
+#include "posix.h"
+#include "path.h"
+#include "futils.h"
+
+static git_repository *repo;
+static char textual_content[] = "libgit2\n\r\n\0";
+
+void test_object_blob_fromstream__initialize(void)
+{
+	repo = cl_git_sandbox_init("testrepo.git");
+}
+
+void test_object_blob_fromstream__cleanup(void)
+{
+	cl_git_sandbox_cleanup();
+}
+
+void test_object_blob_fromstream__multiple_write(void)
+{
+	git_oid expected_id, id;
+	git_object *blob;
+	git_writestream *stream;
+	int i, howmany = 6;
+
+	cl_git_pass(git_oid_fromstr(&expected_id, "321cbdf08803c744082332332838df6bd160f8f9"));
+
+	cl_git_fail_with(GIT_ENOTFOUND,
+			 git_object_lookup(&blob, repo, &expected_id, GIT_OBJECT_ANY));
+
+	cl_git_pass(git_blob_create_from_stream(&stream, repo, NULL));
+
+	for (i = 0; i < howmany; i++)
+		cl_git_pass(stream->write(stream, textual_content, strlen(textual_content)));
+
+	cl_git_pass(git_blob_create_from_stream_commit(&id, stream));
+	cl_assert_equal_oid(&expected_id, &id);
+
+	cl_git_pass(git_object_lookup(&blob, repo, &expected_id, GIT_OBJECT_BLOB));
+
+	git_object_free(blob);
+}
+
+#define GITATTR "* text=auto\n" \
+	"*.txt text\n" \
+	"*.data binary\n"
+
+static void write_attributes(git_repository *repo)
+{
+	git_str buf = GIT_STR_INIT;
+
+	cl_git_pass(git_str_joinpath(&buf, git_repository_path(repo), "info"));
+	cl_git_pass(git_str_joinpath(&buf, git_str_cstr(&buf), "attributes"));
+
+	cl_git_pass(git_futils_mkpath2file(git_str_cstr(&buf), 0777));
+	cl_git_rewritefile(git_str_cstr(&buf), GITATTR);
+
+	git_str_dispose(&buf);
+}
+
+static void assert_named_chunked_blob(const char *expected_sha, const char *fake_name)
+{
+	git_oid expected_id, id;
+	git_writestream *stream;
+	int i, howmany = 6;
+
+	cl_git_pass(git_oid_fromstr(&expected_id, expected_sha));
+
+	cl_git_pass(git_blob_create_from_stream(&stream, repo, fake_name));
+
+	for (i = 0; i < howmany; i++)
+		cl_git_pass(stream->write(stream, textual_content, strlen(textual_content)));
+
+	cl_git_pass(git_blob_create_from_stream_commit(&id, stream));
+
+	cl_assert_equal_oid(&expected_id, &id);
+}
+
+void test_object_blob_fromstream__creating_a_blob_from_chunks_honors_the_attributes_directives(void)
+{
+	write_attributes(repo);
+
+	assert_named_chunked_blob("321cbdf08803c744082332332838df6bd160f8f9", "dummy.data");
+	assert_named_chunked_blob("e9671e138a780833cb689753570fd10a55be84fb", "dummy.txt");
+	assert_named_chunked_blob("e9671e138a780833cb689753570fd10a55be84fb", "dummy.dunno");
+}
diff --git a/tests/libgit2/object/blob/write.c b/tests/libgit2/object/blob/write.c
new file mode 100644
index 000000000..422258d63
--- /dev/null
+++ b/tests/libgit2/object/blob/write.c
@@ -0,0 +1,68 @@
+#include "clar_libgit2.h"
+#include "posix.h"
+#include "path.h"
+#include "futils.h"
+
+static git_repository *repo;
+
+#define WORKDIR "empty_standard_repo"
+#define BARE_REPO "testrepo.git"
+#define ELSEWHERE "elsewhere"
+
+typedef int (*blob_creator_fn)(
+	git_oid *,
+	git_repository *,
+	const char *);
+
+void test_object_blob_write__cleanup(void)
+{
+	cl_git_sandbox_cleanup();
+}
+
+static void assert_blob_creation(const char *path_to_file, const char *blob_from_path, blob_creator_fn creator)
+{
+	git_oid oid;
+	cl_git_mkfile(path_to_file, "1..2...3... Can you hear me?\n");
+
+	cl_must_pass(creator(&oid, repo, blob_from_path));
+	cl_assert(git_oid_streq(&oid, "da5e4f20c91c81b44a7e298f3d3fb3fe2f178e32") == 0);
+}
+
+void test_object_blob_write__can_create_a_blob_in_a_standard_repo_from_a_file_located_in_the_working_directory(void)
+{
+	repo = cl_git_sandbox_init(WORKDIR);
+
+	assert_blob_creation(WORKDIR "/test.txt", "test.txt", &git_blob_create_from_workdir);
+}
+
+void test_object_blob_write__can_create_a_blob_in_a_standard_repo_from_a_absolute_filepath_pointing_outside_of_the_working_directory(void)
+{
+	git_str full_path = GIT_STR_INIT;
+
+	repo = cl_git_sandbox_init(WORKDIR);
+
+	cl_must_pass(p_mkdir(ELSEWHERE, 0777));
+	cl_must_pass(git_fs_path_prettify_dir(&full_path, ELSEWHERE, NULL));
+	cl_must_pass(git_str_puts(&full_path, "test.txt"));
+
+	assert_blob_creation(ELSEWHERE "/test.txt", git_str_cstr(&full_path), &git_blob_create_from_disk);
+
+	git_str_dispose(&full_path);
+	cl_must_pass(git_futils_rmdir_r(ELSEWHERE, NULL, GIT_RMDIR_REMOVE_FILES));
+}
+
+void test_object_blob_write__can_create_a_blob_in_a_bare_repo_from_a_absolute_filepath(void)
+{
+	git_str full_path = GIT_STR_INIT;
+
+	repo = cl_git_sandbox_init(BARE_REPO);
+
+	cl_must_pass(p_mkdir(ELSEWHERE, 0777));
+	cl_must_pass(git_fs_path_prettify_dir(&full_path, ELSEWHERE, NULL));
+	cl_must_pass(git_str_puts(&full_path, "test.txt"));
+
+	assert_blob_creation(ELSEWHERE "/test.txt", git_str_cstr(&full_path), &git_blob_create_from_disk);
+
+	git_str_dispose(&full_path);
+	cl_must_pass(git_futils_rmdir_r(ELSEWHERE, NULL, GIT_RMDIR_REMOVE_FILES));
+}
diff --git a/tests/libgit2/object/cache.c b/tests/libgit2/object/cache.c
new file mode 100644
index 000000000..08bf03648
--- /dev/null
+++ b/tests/libgit2/object/cache.c
@@ -0,0 +1,276 @@
+#include "clar_libgit2.h"
+#include "repository.h"
+
+static git_repository *g_repo;
+static size_t cache_limit;
+static int object_type;
+
+void test_object_cache__initialize_cache_no_blobs(void)
+{
+	g_repo = NULL;
+	object_type = GIT_OBJECT_BLOB;
+	cache_limit = 0;
+}
+
+void test_object_cache__initialize_cache_tiny_blobs(void)
+{
+	g_repo = NULL;
+	object_type = GIT_OBJECT_BLOB;
+	cache_limit = 10;
+}
+
+void test_object_cache__initialize_cache_all_blobs(void)
+{
+	g_repo = NULL;
+	object_type = GIT_OBJECT_BLOB;
+	cache_limit = 32767;
+}
+
+void test_object_cache__initialize_cache_no_trees(void)
+{
+	g_repo = NULL;
+	object_type = GIT_OBJECT_TREE;
+	cache_limit = 0;
+}
+
+void test_object_cache__cleanup(void)
+{
+	git_repository_free(g_repo);
+	g_repo = NULL;
+
+	git_libgit2_opts(GIT_OPT_SET_CACHE_OBJECT_LIMIT, (int)GIT_OBJECT_BLOB, (size_t)0);
+	git_libgit2_opts(GIT_OPT_SET_CACHE_OBJECT_LIMIT, (int)GIT_OBJECT_TREE, (size_t)4096);
+	git_libgit2_opts(GIT_OPT_SET_CACHE_OBJECT_LIMIT, (int)GIT_OBJECT_COMMIT, (size_t)4096);
+}
+
+static struct {
+	git_object_t type;
+	const char *sha;
+	size_t size;
+} g_data[] = {
+	/* HEAD */
+	{ GIT_OBJECT_BLOB, "a8233120f6ad708f843d861ce2b7228ec4e3dec6", 10 }, /* README */
+	{ GIT_OBJECT_BLOB, "3697d64be941a53d4ae8f6a271e4e3fa56b022cc",  8 }, /* branch_file.txt */
+	{ GIT_OBJECT_BLOB, "a71586c1dfe8a71c6cbf6c129f404c5642ff31bd", 12 }, /* new.txt */
+
+	/* refs/heads/subtrees */
+	{ GIT_OBJECT_BLOB, "1385f264afb75a56a5bec74243be9b367ba4ca08",  4 }, /* README */
+	{ GIT_OBJECT_TREE, "f1425cef211cc08caa31e7b545ffb232acb098c3", 90 }, /* ab */
+	{ GIT_OBJECT_BLOB, "d6c93164c249c8000205dd4ec5cbca1b516d487f",  6 }, /* ab/4.txt */
+	{ GIT_OBJECT_TREE, "9a03079b8a8ee85a0bee58bf9be3da8b62414ed4", 33 }, /* ab/c */
+	{ GIT_OBJECT_BLOB, "270b8ea76056d5cad83af921837702d3e3c2924d",  6 }, /* ab/c/3.txt */
+	{ GIT_OBJECT_TREE, "b6361fc6a97178d8fc8639fdeed71c775ab52593", 63 }, /* ab/de */
+	{ GIT_OBJECT_BLOB, "e7b4ad382349ff96dd8199000580b9b1e2042eb0",  6 }, /* ab/de/2.txt */
+	{ GIT_OBJECT_TREE, "3259a6bd5b57fb9c1281bb7ed3167b50f224cb54", 33 }, /* ab/de/fgh */
+	{ GIT_OBJECT_BLOB, "1f67fc4386b2d171e0d21be1c447e12660561f9b",  6 }, /* ab/de/fgh/1.txt */
+	{ GIT_OBJECT_BLOB, "45b983be36b73c0788dc9cbcb76cbb80fc7bb057",  3 }, /* branch_file.txt */
+	{ GIT_OBJECT_BLOB, "fa49b077972391ad58037050f2a75f74e3671e92",  9 }, /* new.txt */
+
+	/* refs/heads/chomped */
+	{ GIT_OBJECT_BLOB, "0266163a49e280c4f5ed1e08facd36a2bd716bcf", 51 }, /* readme.txt */
+
+	{ 0, NULL, 0 },
+	{ 0, NULL, 0 }
+};
+
+void test_object_cache__cache_counts(void)
+{
+	int i, start, nonmatching = 0;
+	git_oid oid;
+	git_odb_object *odb_obj;
+	git_object *obj;
+	git_odb *odb;
+
+	git_libgit2_opts(GIT_OPT_SET_CACHE_OBJECT_LIMIT, object_type, cache_limit);
+
+	cl_git_pass(git_repository_open(&g_repo, cl_fixture("testrepo.git")));
+	cl_git_pass(git_repository_odb(&odb, g_repo));
+
+	start = (int)git_cache_size(&g_repo->objects);
+
+	for (i = 0; g_data[i].sha != NULL; ++i) {
+		int count = (int)git_cache_size(&g_repo->objects);
+
+		cl_git_pass(git_oid_fromstr(&oid, g_data[i].sha));
+
+		/* alternate between loading raw and parsed objects */
+		if ((i & 1) == 0) {
+			cl_git_pass(git_odb_read(&odb_obj, odb, &oid));
+			cl_assert(g_data[i].type == git_odb_object_type(odb_obj));
+			git_odb_object_free(odb_obj);
+		} else {
+			cl_git_pass(git_object_lookup(&obj, g_repo, &oid, GIT_OBJECT_ANY));
+			cl_assert(g_data[i].type == git_object_type(obj));
+			git_object_free(obj);
+		}
+
+		if ((g_data[i].type == object_type && g_data[i].size >= cache_limit) ||
+		    (g_data[i].type != object_type && g_data[i].type == GIT_OBJECT_BLOB))
+			cl_assert_equal_i(count, (int)git_cache_size(&g_repo->objects));
+		else {
+			cl_assert_equal_i(count + 1, (int)git_cache_size(&g_repo->objects));
+			nonmatching++;
+		}
+	}
+
+	cl_assert_equal_i(nonmatching, (int)git_cache_size(&g_repo->objects) - start);
+
+	for (i = 0; g_data[i].sha != NULL; ++i) {
+		int count = (int)git_cache_size(&g_repo->objects);
+
+		cl_git_pass(git_oid_fromstr(&oid, g_data[i].sha));
+		cl_git_pass(git_object_lookup(&obj, g_repo, &oid, GIT_OBJECT_ANY));
+		cl_assert(g_data[i].type == git_object_type(obj));
+		git_object_free(obj);
+
+		cl_assert_equal_i(count, (int)git_cache_size(&g_repo->objects));
+	}
+
+	git_odb_free(odb);
+}
+
+static void *cache_parsed(void *arg)
+{
+	int i;
+	git_oid oid;
+	git_object *obj;
+
+	for (i = ((int *)arg)[1]; g_data[i].sha != NULL; i += 2) {
+		cl_git_pass(git_oid_fromstr(&oid, g_data[i].sha));
+		cl_git_pass(git_object_lookup(&obj, g_repo, &oid, GIT_OBJECT_ANY));
+		cl_assert(g_data[i].type == git_object_type(obj));
+		git_object_free(obj);
+	}
+
+	for (i = 0; i < ((int *)arg)[1]; i += 2) {
+		cl_git_pass(git_oid_fromstr(&oid, g_data[i].sha));
+		cl_git_pass(git_object_lookup(&obj, g_repo, &oid, GIT_OBJECT_ANY));
+		cl_assert(g_data[i].type == git_object_type(obj));
+		git_object_free(obj);
+	}
+
+	return arg;
+}
+
+static void *cache_raw(void *arg)
+{
+	int i;
+	git_oid oid;
+	git_odb *odb;
+	git_odb_object *odb_obj;
+
+	cl_git_pass(git_repository_odb(&odb, g_repo));
+
+	for (i = ((int *)arg)[1]; g_data[i].sha != NULL; i += 2) {
+		cl_git_pass(git_oid_fromstr(&oid, g_data[i].sha));
+		cl_git_pass(git_odb_read(&odb_obj, odb, &oid));
+		cl_assert(g_data[i].type == git_odb_object_type(odb_obj));
+		git_odb_object_free(odb_obj);
+	}
+
+	for (i = 0; i < ((int *)arg)[1]; i += 2) {
+		cl_git_pass(git_oid_fromstr(&oid, g_data[i].sha));
+		cl_git_pass(git_odb_read(&odb_obj, odb, &oid));
+		cl_assert(g_data[i].type == git_odb_object_type(odb_obj));
+		git_odb_object_free(odb_obj);
+	}
+
+	git_odb_free(odb);
+
+	return arg;
+}
+
+#define REPEAT 20
+#define THREADCOUNT 50
+
+void test_object_cache__threadmania(void)
+{
+	int try, th, max_i;
+	void *data;
+	void *(*fn)(void *);
+
+#ifdef GIT_THREADS
+	git_thread t[THREADCOUNT];
+#endif
+
+	for (max_i = 0; g_data[max_i].sha != NULL; ++max_i)
+		/* count up */;
+
+	for (try = 0; try < REPEAT; ++try) {
+
+		cl_git_pass(git_repository_open(&g_repo, cl_fixture("testrepo.git")));
+
+		for (th = 0; th < THREADCOUNT; ++th) {
+			data = git__malloc(2 * sizeof(int));
+
+			((int *)data)[0] = th;
+			((int *)data)[1] = th % max_i;
+
+			fn = (th & 1) ? cache_parsed : cache_raw;
+
+#ifdef GIT_THREADS
+			cl_git_pass(git_thread_create(&t[th], fn, data));
+#else
+			cl_assert(fn(data) == data);
+			git__free(data);
+#endif
+		}
+
+#ifdef GIT_THREADS
+		for (th = 0; th < THREADCOUNT; ++th) {
+			cl_git_pass(git_thread_join(&t[th], &data));
+			cl_assert_equal_i(th, ((int *)data)[0]);
+			git__free(data);
+		}
+#endif
+
+		git_repository_free(g_repo);
+		g_repo = NULL;
+	}
+}
+
+static void *cache_quick(void *arg)
+{
+	git_oid oid;
+	git_object *obj;
+
+	cl_git_pass(git_oid_fromstr(&oid, g_data[4].sha));
+	cl_git_pass(git_object_lookup(&obj, g_repo, &oid, GIT_OBJECT_ANY));
+	cl_assert(g_data[4].type == git_object_type(obj));
+	git_object_free(obj);
+
+	return arg;
+}
+
+void test_object_cache__fast_thread_rush(void)
+{
+	int try, th, data[THREADCOUNT];
+#ifdef GIT_THREADS
+	git_thread t[THREADCOUNT];
+#endif
+
+	for (try = 0; try < REPEAT; ++try) {
+		cl_git_pass(git_repository_open(&g_repo, cl_fixture("testrepo.git")));
+
+		for (th = 0; th < THREADCOUNT; ++th) {
+			data[th] = th;
+#ifdef GIT_THREADS
+			cl_git_pass(
+				git_thread_create(&t[th], cache_quick, &data[th]));
+#else
+			cl_assert(cache_quick(&data[th]) == &data[th]);
+#endif
+		}
+
+#ifdef GIT_THREADS
+		for (th = 0; th < THREADCOUNT; ++th) {
+			void *rval;
+			cl_git_pass(git_thread_join(&t[th], &rval));
+			cl_assert_equal_i(th, *((int *)rval));
+		}
+#endif
+
+		git_repository_free(g_repo);
+		g_repo = NULL;
+	}
+}
diff --git a/tests/libgit2/object/commit/commitstagedfile.c b/tests/libgit2/object/commit/commitstagedfile.c
new file mode 100644
index 000000000..7322a4e86
--- /dev/null
+++ b/tests/libgit2/object/commit/commitstagedfile.c
@@ -0,0 +1,218 @@
+#include "clar_libgit2.h"
+#include "posix.h"
+
+static git_repository *repo;
+
+void test_object_commit_commitstagedfile__initialize(void)
+{
+	cl_fixture("treebuilder");
+	cl_git_pass(git_repository_init(&repo, "treebuilder/", 0));
+	cl_assert(repo != NULL);
+}
+
+void test_object_commit_commitstagedfile__cleanup(void)
+{
+	git_repository_free(repo);
+	repo = NULL;
+
+	cl_fixture_cleanup("treebuilder");
+}
+
+void test_object_commit_commitstagedfile__generate_predictable_object_ids(void)
+{
+	git_index *index;
+	const git_index_entry *entry;
+	git_oid expected_blob_oid, tree_oid, expected_tree_oid, commit_oid, expected_commit_oid;
+	git_signature *signature;
+	git_tree *tree;
+	git_buf buffer = GIT_BUF_INIT;
+
+	/*
+	 * The test below replicates the following git scenario
+	 *
+	 * $ echo "test" > test.txt
+	 * $ git hash-object test.txt
+	 * 9daeafb9864cf43055ae93beb0afd6c7d144bfa4
+	 *
+	 * $ git add .
+	 * $ git commit -m "Initial commit"
+	 *
+	 * $ git log
+	 * commit 1fe3126578fc4eca68c193e4a3a0a14a0704624d
+	 * Author: nulltoken <emeric.fermas@gmail.com>
+	 * Date:   Wed Dec 14 08:29:03 2011 +0100
+	 *
+	 *     Initial commit
+	 *
+	 * $ git show 1fe3 --format=raw
+	 * commit 1fe3126578fc4eca68c193e4a3a0a14a0704624d
+	 * tree 2b297e643c551e76cfa1f93810c50811382f9117
+	 * author nulltoken <emeric.fermas@gmail.com> 1323847743 +0100
+	 * committer nulltoken <emeric.fermas@gmail.com> 1323847743 +0100
+	 *
+	 *     Initial commit
+	 *
+	 * diff --git a/test.txt b/test.txt
+	 * new file mode 100644
+	 * index 0000000..9daeafb
+	 * --- /dev/null
+	 * +++ b/test.txt
+	 * @@ -0,0 +1 @@
+	 * +test
+	 *
+	 * $ git ls-tree 2b297
+	 * 100644 blob 9daeafb9864cf43055ae93beb0afd6c7d144bfa4    test.txt
+	 */
+
+	cl_git_pass(git_oid_fromstr(&expected_commit_oid, "1fe3126578fc4eca68c193e4a3a0a14a0704624d"));
+	cl_git_pass(git_oid_fromstr(&expected_tree_oid, "2b297e643c551e76cfa1f93810c50811382f9117"));
+	cl_git_pass(git_oid_fromstr(&expected_blob_oid, "9daeafb9864cf43055ae93beb0afd6c7d144bfa4"));
+
+	/*
+	 * Add a new file to the index
+	 */
+	cl_git_mkfile("treebuilder/test.txt", "test\n");
+	cl_git_pass(git_repository_index(&index, repo));
+	cl_git_pass(git_index_add_bypath(index, "test.txt"));
+
+	entry = git_index_get_byindex(index, 0);
+
+	cl_assert(git_oid_cmp(&expected_blob_oid, &entry->id) == 0);
+
+	/*
+	 * Information about index entry should match test file
+	 */
+	{
+		struct stat st;
+		cl_must_pass(p_lstat("treebuilder/test.txt", &st));
+		cl_assert(entry->file_size == st.st_size);
+#ifndef _WIN32
+		/*
+		 * Windows doesn't populate these fields, and the signage is
+		 * wrong in the Windows version of the struct, so lets avoid
+		 * the "comparing signed and unsigned" compilation warning in
+		 * that case.
+		 */
+		cl_assert(entry->uid == st.st_uid);
+		cl_assert(entry->gid == st.st_gid);
+#endif
+	}
+
+	/*
+	 * Build the tree from the index
+	 */
+	cl_git_pass(git_index_write_tree(&tree_oid, index));
+
+	cl_assert(git_oid_cmp(&expected_tree_oid, &tree_oid) == 0);
+
+	/*
+	 * Commit the staged file
+	 */
+	cl_git_pass(git_signature_new(&signature, "nulltoken", "emeric.fermas@gmail.com", 1323847743, 60));
+	cl_git_pass(git_tree_lookup(&tree, repo, &tree_oid));
+
+	cl_git_pass(git_message_prettify(&buffer, "Initial commit", 0, '#'));
+
+	cl_git_pass(git_commit_create_v(
+		&commit_oid,
+		repo,
+		"HEAD",
+		signature,
+		signature,
+		NULL,
+		buffer.ptr,
+		tree,
+		0));
+
+	cl_assert(git_oid_cmp(&expected_commit_oid, &commit_oid) == 0);
+
+	git_buf_dispose(&buffer);
+	git_signature_free(signature);
+	git_tree_free(tree);
+	git_index_free(index);
+}
+
+static void assert_commit_tree_has_n_entries(git_commit *c, int count)
+{
+	git_tree *tree;
+	cl_git_pass(git_commit_tree(&tree, c));
+	cl_assert_equal_i(count, git_tree_entrycount(tree));
+	git_tree_free(tree);
+}
+
+static void assert_commit_is_head_(git_commit *c, const char *file, const char *func, int line)
+{
+	git_commit *head;
+	cl_git_pass(git_revparse_single((git_object **)&head, repo, "HEAD"));
+	clar__assert(git_oid_equal(git_commit_id(c), git_commit_id(head)), file, func, line, "Commit is not the HEAD", NULL, 1);
+	git_commit_free(head);
+}
+#define assert_commit_is_head(C) assert_commit_is_head_((C),__FILE__,__func__,__LINE__)
+
+void test_object_commit_commitstagedfile__amend_commit(void)
+{
+	git_index *index;
+	git_oid old_oid, new_oid, tree_oid;
+	git_commit *old_commit, *new_commit;
+	git_tree *tree;
+
+	/* make a commit */
+
+	cl_git_mkfile("treebuilder/myfile", "This is a file\n");
+	cl_git_pass(git_repository_index(&index, repo));
+	cl_git_pass(git_index_add_bypath(index, "myfile"));
+	cl_repo_commit_from_index(&old_oid, repo, NULL, 0, "first commit");
+
+	cl_git_pass(git_commit_lookup(&old_commit, repo, &old_oid));
+
+	cl_assert_equal_i(0, git_commit_parentcount(old_commit));
+	assert_commit_tree_has_n_entries(old_commit, 1);
+	assert_commit_is_head(old_commit);
+
+	/* let's amend the message of the HEAD commit */
+
+	cl_git_pass(git_commit_amend(
+		&new_oid, old_commit, "HEAD", NULL, NULL, NULL, "Initial commit", NULL));
+
+	/* fail because the commit isn't the tip of the branch anymore */
+	cl_git_fail(git_commit_amend(
+		&new_oid, old_commit, "HEAD", NULL, NULL, NULL, "Initial commit", NULL));
+
+	cl_git_pass(git_commit_lookup(&new_commit, repo, &new_oid));
+
+	cl_assert_equal_i(0, git_commit_parentcount(new_commit));
+	assert_commit_tree_has_n_entries(new_commit, 1);
+	assert_commit_is_head(new_commit);
+
+	git_commit_free(old_commit);
+
+	old_commit = new_commit;
+
+	/* let's amend the tree of that last commit */
+
+	cl_git_mkfile("treebuilder/anotherfile", "This is another file\n");
+	cl_git_pass(git_index_add_bypath(index, "anotherfile"));
+	cl_git_pass(git_index_write_tree(&tree_oid, index));
+	cl_git_pass(git_tree_lookup(&tree, repo, &tree_oid));
+	cl_assert_equal_i(2, git_tree_entrycount(tree));
+
+	/* fail to amend on a ref which does not exist */
+	cl_git_fail_with(GIT_ENOTFOUND, git_commit_amend(
+		&new_oid, old_commit, "refs/heads/nope", NULL, NULL, NULL, "Initial commit", tree));
+
+	cl_git_pass(git_commit_amend(
+		&new_oid, old_commit, "HEAD", NULL, NULL, NULL, "Initial commit", tree));
+	git_tree_free(tree);
+
+	cl_git_pass(git_commit_lookup(&new_commit, repo, &new_oid));
+
+	cl_assert_equal_i(0, git_commit_parentcount(new_commit));
+	assert_commit_tree_has_n_entries(new_commit, 2);
+	assert_commit_is_head(new_commit);
+
+	/* cleanup */
+
+	git_commit_free(old_commit);
+	git_commit_free(new_commit);
+	git_index_free(index);
+}
diff --git a/tests/libgit2/object/commit/parse.c b/tests/libgit2/object/commit/parse.c
new file mode 100644
index 000000000..4ff1ad62a
--- /dev/null
+++ b/tests/libgit2/object/commit/parse.c
@@ -0,0 +1,232 @@
+#include "clar_libgit2.h"
+#include "commit.h"
+#include "object.h"
+#include "signature.h"
+
+static void assert_commit_parses(const char *data, size_t datalen,
+	const char *expected_treeid,
+	const char *expected_author,
+	const char *expected_committer,
+	const char *expected_encoding,
+	const char *expected_message,
+	size_t expected_parents)
+{
+	git_commit *commit;
+	if (!datalen)
+		datalen = strlen(data);
+	cl_git_pass(git_object__from_raw((git_object **) &commit, data, datalen, GIT_OBJECT_COMMIT));
+
+	if (expected_author) {
+		git_signature *author;
+		cl_git_pass(git_signature_from_buffer(&author, expected_author));
+		cl_assert(git_signature__equal(author, commit->author));
+		cl_assert_equal_s(author->name, commit->author->name);
+		cl_assert_equal_s(author->email, commit->author->email);
+		cl_assert_equal_i(author->when.time, commit->author->when.time);
+		cl_assert_equal_i(author->when.offset, commit->author->when.offset);
+		cl_assert_equal_i(author->when.sign, commit->author->when.sign);
+		git_signature_free(author);
+	}
+
+	if (expected_committer) {
+		git_signature *committer;
+		cl_git_pass(git_signature_from_buffer(&committer, expected_committer));
+		cl_assert_equal_s(committer->name, commit->committer->name);
+		cl_assert_equal_s(committer->email, commit->committer->email);
+		cl_assert_equal_i(committer->when.time, commit->committer->when.time);
+		cl_assert_equal_i(committer->when.offset, commit->committer->when.offset);
+		cl_assert_equal_i(committer->when.sign, commit->committer->when.sign);
+		git_signature_free(committer);
+	}
+
+	if (expected_encoding)
+		cl_assert_equal_s(commit->message_encoding, expected_encoding);
+	else
+		cl_assert_equal_p(commit->message_encoding, NULL);
+
+	if (expected_message)
+		cl_assert_equal_s(commit->raw_message, expected_message);
+	else
+		cl_assert_equal_p(commit->message_encoding, NULL);
+
+	if (expected_treeid) {
+		git_oid tree_oid;
+		cl_git_pass(git_oid_fromstr(&tree_oid, expected_treeid));
+		cl_assert_equal_oid(&tree_oid, &commit->tree_id);
+	}
+
+	cl_assert_equal_i(commit->parent_ids.size, expected_parents);
+
+	git_object__free(&commit->object);
+}
+
+static void assert_commit_fails(const char *data, size_t datalen)
+{
+	git_object *object;
+	if (!datalen)
+		datalen = strlen(data);
+	cl_git_fail(git_object__from_raw(&object, data, datalen, GIT_OBJECT_COMMIT));
+}
+
+void test_object_commit_parse__parsing_commit_succeeds(void)
+{
+	const char *commit =
+		"tree 3e7ac388cadacccdf1c6c5f3445895b71d9cb0f8\n"
+		"author Author <author@example.com>\n"
+		"committer Committer <committer@example.com>\n"
+		"encoding Encoding\n"
+		"\n"
+		"Message";
+	assert_commit_parses(commit, 0,
+		"3e7ac388cadacccdf1c6c5f3445895b71d9cb0f8",
+		"Author <author@example.com>",
+		"Committer <committer@example.com>",
+		"Encoding",
+		"Message", 0);
+}
+
+void test_object_commit_parse__parsing_commit_without_encoding_succeeds(void)
+{
+	const char *commit =
+		"tree 3e7ac388cadacccdf1c6c5f3445895b71d9cb0f8\n"
+		"author Author <author@example.com>\n"
+		"committer Committer <committer@example.com>\n"
+		"\n"
+		"Message";
+	assert_commit_parses(commit, 0,
+		"3e7ac388cadacccdf1c6c5f3445895b71d9cb0f8",
+		"Author <author@example.com>",
+		"Committer <committer@example.com>",
+		NULL,
+		"Message", 0);
+}
+
+void test_object_commit_parse__parsing_commit_with_multiple_authors_succeeds(void)
+{
+	const char *commit =
+		"tree 3e7ac388cadacccdf1c6c5f3445895b71d9cb0f8\n"
+		"author Author1 <author@example.com>\n"
+		"author Author2 <author@example.com>\n"
+		"author Author3 <author@example.com>\n"
+		"author Author4 <author@example.com>\n"
+		"committer Committer <committer@example.com>\n"
+		"\n"
+		"Message";
+	assert_commit_parses(commit, 0,
+		"3e7ac388cadacccdf1c6c5f3445895b71d9cb0f8",
+		"Author1 <author@example.com>",
+		"Committer <committer@example.com>",
+		NULL,
+		"Message", 0);
+}
+
+void test_object_commit_parse__parsing_commit_with_multiple_committers_succeeds(void)
+{
+	const char *commit =
+		"tree 3e7ac388cadacccdf1c6c5f3445895b71d9cb0f8\n"
+		"author Author <author@example.com>\n"
+		"committer Committer1 <committer@example.com>\n"
+		"committer Committer2 <committer@example.com>\n"
+		"committer Committer3 <committer@example.com>\n"
+		"committer Committer4 <committer@example.com>\n"
+		"\n"
+		"Message";
+	assert_commit_parses(commit, 0,
+		"3e7ac388cadacccdf1c6c5f3445895b71d9cb0f8",
+		"Author <author@example.com>",
+		"Committer1 <committer@example.com>",
+		NULL,
+		"Message", 0);
+}
+
+void test_object_commit_parse__parsing_commit_without_message_succeeds(void)
+{
+	const char *commit =
+		"tree 3e7ac388cadacccdf1c6c5f3445895b71d9cb0f8\n"
+		"author Author <author@example.com>\n"
+		"committer Committer <committer@example.com>\n";
+	assert_commit_parses(commit, 0,
+		"3e7ac388cadacccdf1c6c5f3445895b71d9cb0f8",
+		"Author <author@example.com>",
+		"Committer <committer@example.com>",
+		NULL,
+		"", 0);
+}
+
+void test_object_commit_parse__parsing_commit_with_unknown_fields_succeeds(void)
+{
+	const char *commit =
+		"tree 3e7ac388cadacccdf1c6c5f3445895b71d9cb0f8\n"
+		"author Author <author@example.com>\n"
+		"committer Committer <committer@example.com>\n"
+		"foo bar\n"
+		"more garbage\n"
+		"\n"
+		"Message";
+	assert_commit_parses(commit, 0,
+		"3e7ac388cadacccdf1c6c5f3445895b71d9cb0f8",
+		"Author <author@example.com>",
+		"Committer <committer@example.com>",
+		NULL,
+		"Message", 0);
+}
+
+void test_object_commit_parse__parsing_commit_with_invalid_tree_fails(void)
+{
+	const char *commit =
+		"tree 3e7ac388cadacccdf1xxx5f3445895b71d9cb0f8\n"
+		"author Author <author@example.com>\n"
+		"committer Committer <committer@example.com>\n"
+		"\n"
+		"Message";
+	assert_commit_fails(commit, 0);
+}
+
+void test_object_commit_parse__parsing_commit_without_tree_fails(void)
+{
+	const char *commit =
+		"author Author <author@example.com>\n"
+		"committer Committer <committer@example.com>\n"
+		"\n"
+		"Message";
+	assert_commit_fails(commit, 0);
+}
+
+void test_object_commit_parse__parsing_commit_without_author_fails(void)
+{
+	const char *commit =
+		"tree 3e7ac388cadacccdf1c6c5f3445895b71d9cb0f8\n"
+		"committer Committer <committer@example.com>\n"
+		"\n"
+		"Message";
+	assert_commit_fails(commit, 0);
+}
+
+void test_object_commit_parse__parsing_commit_without_committer_fails(void)
+{
+	const char *commit =
+		"tree 3e7ac388cadacccdf1c6c5f3445895b71d9cb0f8\n"
+		"author Author <author@example.com>\n"
+		"\n"
+		"Message";
+	assert_commit_fails(commit, 0);
+}
+
+void test_object_commit_parse__parsing_encoding_will_not_cause_oob_read(void)
+{
+	const char *commit =
+		"tree 3e7ac388cadacccdf1c6c5f3445895b71d9cb0f8\n"
+		"author <>\n"
+		"committer <>\n"
+		"encoding foo\n";
+	/*
+	 * As we ignore unknown fields, the cut-off encoding field will be
+	 * parsed just fine.
+	 */
+	assert_commit_parses(commit, strlen(commit) - strlen("ncoding foo\n"),
+		"3e7ac388cadacccdf1c6c5f3445895b71d9cb0f8",
+		"<>",
+		"<>",
+		NULL,
+		"", 0);
+}
diff --git a/tests/libgit2/object/lookup.c b/tests/libgit2/object/lookup.c
new file mode 100644
index 000000000..a7b1ceeb4
--- /dev/null
+++ b/tests/libgit2/object/lookup.c
@@ -0,0 +1,122 @@
+#include "clar_libgit2.h"
+
+#include "repository.h"
+
+static git_repository *g_repo;
+
+void test_object_lookup__initialize(void)
+{
+	g_repo = cl_git_sandbox_init("testrepo.git");
+}
+
+void test_object_lookup__cleanup(void)
+{
+	cl_git_sandbox_cleanup();
+}
+
+void test_object_lookup__lookup_wrong_type_returns_enotfound(void)
+{
+	const char *commit = "e90810b8df3e80c413d903f631643c716887138d";
+	git_oid oid;
+	git_object *object;
+
+	cl_git_pass(git_oid_fromstr(&oid, commit));
+	cl_assert_equal_i(
+		GIT_ENOTFOUND, git_object_lookup(&object, g_repo, &oid, GIT_OBJECT_TAG));
+}
+
+void test_object_lookup__lookup_nonexisting_returns_enotfound(void)
+{
+	const char *unknown = "deadbeefdeadbeefdeadbeefdeadbeefdeadbeef";
+	git_oid oid;
+	git_object *object;
+
+	cl_git_pass(git_oid_fromstr(&oid, unknown));
+	cl_assert_equal_i(
+		GIT_ENOTFOUND, git_object_lookup(&object, g_repo, &oid, GIT_OBJECT_ANY));
+}
+
+void test_object_lookup__lookup_wrong_type_by_abbreviated_id_returns_enotfound(void)
+{
+	const char *commit = "e90810b";
+	git_oid oid;
+	git_object *object;
+
+	cl_git_pass(git_oid_fromstrn(&oid, commit, strlen(commit)));
+	cl_assert_equal_i(
+		GIT_ENOTFOUND, git_object_lookup_prefix(&object, g_repo, &oid, strlen(commit), GIT_OBJECT_TAG));
+}
+
+void test_object_lookup__lookup_wrong_type_eventually_returns_enotfound(void)
+{
+	const char *commit = "e90810b8df3e80c413d903f631643c716887138d";
+	git_oid oid;
+	git_object *object;
+
+	cl_git_pass(git_oid_fromstr(&oid, commit));
+
+	cl_git_pass(git_object_lookup(&object, g_repo, &oid, GIT_OBJECT_COMMIT));
+	git_object_free(object);
+
+	cl_assert_equal_i(
+		GIT_ENOTFOUND, git_object_lookup(&object, g_repo, &oid, GIT_OBJECT_TAG));
+}
+
+void test_object_lookup__lookup_corrupt_object_returns_error(void)
+{
+	const char *commit = "8e73b769e97678d684b809b163bebdae2911720f",
+	      *file = "objects/8e/73b769e97678d684b809b163bebdae2911720f";
+	git_str path = GIT_STR_INIT, contents = GIT_STR_INIT;
+	git_oid oid;
+	git_object *object;
+	size_t i;
+
+	cl_git_pass(git_oid_fromstr(&oid, commit));
+	cl_git_pass(git_str_joinpath(&path, git_repository_path(g_repo), file));
+	cl_git_pass(git_futils_readbuffer(&contents, path.ptr));
+
+	/* Corrupt and try to read the object */
+	for (i = 0; i < contents.size; i++) {
+		contents.ptr[i] ^= 0x1;
+		cl_git_pass(git_futils_writebuffer(&contents, path.ptr, O_RDWR, 0644));
+		cl_git_fail(git_object_lookup(&object, g_repo, &oid, GIT_OBJECT_COMMIT));
+		contents.ptr[i] ^= 0x1;
+	}
+
+	/* Restore original content and assert we can read the object */
+	cl_git_pass(git_futils_writebuffer(&contents, path.ptr, O_RDWR, 0644));
+	cl_git_pass(git_object_lookup(&object, g_repo, &oid, GIT_OBJECT_COMMIT));
+
+	git_object_free(object);
+	git_str_dispose(&path);
+	git_str_dispose(&contents);
+}
+
+void test_object_lookup__lookup_object_with_wrong_hash_returns_error(void)
+{
+	const char *oldloose = "objects/8e/73b769e97678d684b809b163bebdae2911720f",
+	      *newloose = "objects/8e/73b769e97678d684b809b163bebdae2911720e",
+	      *commit = "8e73b769e97678d684b809b163bebdae2911720e";
+	git_str oldpath = GIT_STR_INIT, newpath = GIT_STR_INIT;
+	git_object *object;
+	git_oid oid;
+
+	cl_git_pass(git_oid_fromstr(&oid, commit));
+
+	/* Copy object to another location with wrong hash */
+	cl_git_pass(git_str_joinpath(&oldpath, git_repository_path(g_repo), oldloose));
+	cl_git_pass(git_str_joinpath(&newpath, git_repository_path(g_repo), newloose));
+	cl_git_pass(git_futils_cp(oldpath.ptr, newpath.ptr, 0644));
+
+	/* Verify that lookup fails due to a hashsum mismatch */
+	cl_git_fail_with(GIT_EMISMATCH, git_object_lookup(&object, g_repo, &oid, GIT_OBJECT_COMMIT));
+
+	/* Disable verification and try again */
+	cl_git_pass(git_libgit2_opts(GIT_OPT_ENABLE_STRICT_HASH_VERIFICATION, 0));
+	cl_git_pass(git_object_lookup(&object, g_repo, &oid, GIT_OBJECT_COMMIT));
+	cl_git_pass(git_libgit2_opts(GIT_OPT_ENABLE_STRICT_HASH_VERIFICATION, 1));
+
+	git_object_free(object);
+	git_str_dispose(&oldpath);
+	git_str_dispose(&newpath);
+}
diff --git a/tests/libgit2/object/lookupbypath.c b/tests/libgit2/object/lookupbypath.c
new file mode 100644
index 000000000..f2257f556
--- /dev/null
+++ b/tests/libgit2/object/lookupbypath.c
@@ -0,0 +1,83 @@
+#include "clar_libgit2.h"
+
+#include "repository.h"
+
+static git_repository *g_repo;
+static git_tree *g_root_tree;
+static git_commit *g_head_commit;
+static git_object *g_expectedobject,
+						*g_actualobject;
+
+void test_object_lookupbypath__initialize(void)
+{
+	git_reference *head;
+	git_tree_entry *tree_entry;
+
+	cl_git_pass(git_repository_open(&g_repo, cl_fixture("attr/.gitted")));
+
+	cl_git_pass(git_repository_head(&head, g_repo));
+	cl_git_pass(git_reference_peel((git_object**)&g_head_commit, head, GIT_OBJECT_COMMIT));
+	cl_git_pass(git_commit_tree(&g_root_tree, g_head_commit));
+	cl_git_pass(git_tree_entry_bypath(&tree_entry, g_root_tree, "subdir/subdir_test2.txt"));
+	cl_git_pass(git_object_lookup(&g_expectedobject, g_repo, git_tree_entry_id(tree_entry),
+				GIT_OBJECT_ANY));
+
+	git_tree_entry_free(tree_entry);
+	git_reference_free(head);
+
+	g_actualobject = NULL;
+}
+void test_object_lookupbypath__cleanup(void)
+{
+	git_object_free(g_actualobject);
+	git_object_free(g_expectedobject);
+	git_tree_free(g_root_tree);
+	git_commit_free(g_head_commit);
+	g_expectedobject = NULL;
+	git_repository_free(g_repo);
+	g_repo = NULL;
+}
+
+void test_object_lookupbypath__errors(void)
+{
+	cl_assert_equal_i(GIT_EINVALIDSPEC,
+			git_object_lookup_bypath(&g_actualobject, (git_object*)g_root_tree,
+				"subdir/subdir_test2.txt", GIT_OBJECT_TREE)); /* It's not a tree */
+	cl_assert_equal_i(GIT_ENOTFOUND,
+			git_object_lookup_bypath(&g_actualobject, (git_object*)g_root_tree,
+				"file/doesnt/exist", GIT_OBJECT_ANY));
+}
+
+void test_object_lookupbypath__from_root_tree(void)
+{
+	cl_git_pass(git_object_lookup_bypath(&g_actualobject, (git_object*)g_root_tree,
+				"subdir/subdir_test2.txt", GIT_OBJECT_BLOB));
+	cl_assert_equal_oid(git_object_id(g_expectedobject),
+		git_object_id(g_actualobject));
+}
+
+void test_object_lookupbypath__from_head_commit(void)
+{
+	cl_git_pass(git_object_lookup_bypath(&g_actualobject, (git_object*)g_head_commit,
+				"subdir/subdir_test2.txt", GIT_OBJECT_BLOB));
+	cl_assert_equal_oid(git_object_id(g_expectedobject),
+				git_object_id(g_actualobject));
+}
+
+void test_object_lookupbypath__from_subdir_tree(void)
+{
+	git_tree_entry *entry = NULL;
+	git_tree *tree = NULL;
+
+	cl_git_pass(git_tree_entry_bypath(&entry, g_root_tree, "subdir"));
+	cl_git_pass(git_tree_lookup(&tree, g_repo, git_tree_entry_id(entry)));
+
+	cl_git_pass(git_object_lookup_bypath(&g_actualobject, (git_object*)tree,
+				"subdir_test2.txt", GIT_OBJECT_BLOB));
+	cl_assert_equal_oid(git_object_id(g_expectedobject),
+				git_object_id(g_actualobject));
+
+	git_tree_entry_free(entry);
+	git_tree_free(tree);
+}
+
diff --git a/tests/libgit2/object/message.c b/tests/libgit2/object/message.c
new file mode 100644
index 000000000..d87c8ef70
--- /dev/null
+++ b/tests/libgit2/object/message.c
@@ -0,0 +1,197 @@
+#include "clar_libgit2.h"
+
+static void assert_message_prettifying(char *expected_output, char *input, int strip_comments)
+{
+	git_buf prettified_message = GIT_BUF_INIT;
+
+	git_message_prettify(&prettified_message, input, strip_comments, '#');
+	cl_assert_equal_s(expected_output, prettified_message.ptr);
+
+	git_buf_dispose(&prettified_message);
+}
+
+#define t40 "A quick brown fox jumps over the lazy do"
+#define s40 "                                        "
+#define sss s40 s40 s40 s40 s40 s40 s40 s40 s40 s40 /* # 400 */
+#define ttt t40 t40 t40 t40 t40 t40 t40 t40 t40 t40 /* # 400 */
+
+/* Ported from git.git */
+/* see https://github.com/git/git/blob/master/t/t0030-stripspace.sh */
+void test_object_message__long_lines_without_spaces_should_be_unchanged(void)
+{
+	assert_message_prettifying(ttt "\n", ttt, 0);
+	assert_message_prettifying(ttt ttt "\n", ttt ttt, 0);
+	assert_message_prettifying(ttt ttt ttt "\n", ttt ttt ttt, 0);
+	assert_message_prettifying(ttt ttt ttt ttt "\n", ttt ttt ttt ttt, 0);
+}
+
+void test_object_message__lines_with_spaces_at_the_beginning_should_be_unchanged(void)
+{
+	assert_message_prettifying(sss ttt "\n", sss ttt, 0);
+	assert_message_prettifying(sss sss ttt "\n", sss sss ttt, 0);
+	assert_message_prettifying(sss sss sss ttt "\n", sss sss sss ttt, 0);
+}
+
+void test_object_message__lines_with_intermediate_spaces_should_be_unchanged(void)
+{
+	assert_message_prettifying(ttt sss ttt "\n", ttt sss ttt, 0);
+	assert_message_prettifying(ttt sss sss ttt "\n", ttt sss sss ttt, 0);
+}
+
+void test_object_message__consecutive_blank_lines_should_be_unified(void)
+{
+	assert_message_prettifying(ttt "\n\n" ttt "\n", ttt "\n\n\n\n\n" ttt "\n", 0);
+	assert_message_prettifying(ttt ttt "\n\n" ttt "\n", ttt ttt "\n\n\n\n\n" ttt "\n", 0);
+	assert_message_prettifying(ttt ttt ttt "\n\n" ttt "\n", ttt ttt ttt "\n\n\n\n\n" ttt "\n", 0);
+
+	assert_message_prettifying(ttt "\n\n" ttt ttt "\n", ttt "\n\n\n\n\n" ttt ttt "\n", 0);
+	assert_message_prettifying(ttt "\n\n" ttt ttt ttt "\n", ttt "\n\n\n\n\n" ttt ttt ttt "\n", 0);
+
+	assert_message_prettifying(ttt "\n\n" ttt "\n", ttt "\n\t\n \n\n  \t\t\n" ttt "\n", 0);
+	assert_message_prettifying(ttt ttt "\n\n" ttt "\n", ttt ttt "\n\t\n \n\n  \t\t\n" ttt "\n", 0);
+	assert_message_prettifying(ttt ttt ttt "\n\n" ttt "\n", ttt ttt ttt "\n\t\n \n\n  \t\t\n" ttt "\n", 0);
+
+	assert_message_prettifying(ttt "\n\n" ttt ttt "\n", ttt "\n\t\n \n\n  \t\t\n" ttt ttt "\n", 0);
+	assert_message_prettifying(ttt "\n\n" ttt ttt ttt "\n", ttt "\n\t\n \n\n  \t\t\n" ttt ttt ttt "\n", 0);
+}
+
+void test_object_message__only_consecutive_blank_lines_should_be_completely_removed(void)
+{
+	assert_message_prettifying("", "\n", 0);
+	assert_message_prettifying("", "\n\n\n", 0);
+	assert_message_prettifying("", sss "\n" sss "\n" sss "\n", 0);
+	assert_message_prettifying("", sss sss "\n" sss "\n\n", 0);
+}
+
+void test_object_message__consecutive_blank_lines_at_the_beginning_should_be_removed(void)
+{
+	assert_message_prettifying(ttt "\n", "\n" ttt "\n", 0);
+	assert_message_prettifying(ttt "\n", "\n\n\n" ttt "\n", 0);
+	assert_message_prettifying(ttt ttt "\n", "\n\n\n" ttt ttt "\n", 0);
+	assert_message_prettifying(ttt ttt ttt "\n", "\n\n\n" ttt ttt ttt "\n", 0);
+	assert_message_prettifying(ttt ttt ttt ttt "\n", "\n\n\n" ttt ttt ttt ttt "\n", 0);
+	assert_message_prettifying(ttt "\n", sss "\n" sss "\n" sss "\n" ttt "\n", 0);
+	assert_message_prettifying(ttt "\n", "\n" sss "\n" sss sss "\n" ttt "\n", 0);
+	assert_message_prettifying(ttt "\n", sss sss "\n" sss "\n\n" ttt "\n", 0);
+	assert_message_prettifying(ttt "\n", sss sss sss "\n\n\n" ttt "\n", 0);
+	assert_message_prettifying(ttt "\n", "\n" sss sss sss "\n\n" ttt "\n", 0);
+	assert_message_prettifying(ttt "\n", "\n\n" sss sss sss "\n" ttt "\n", 0);
+}
+
+void test_object_message__consecutive_blank_lines_at_the_end_should_be_removed(void)
+{
+	assert_message_prettifying(ttt "\n", ttt "\n\n", 0);
+	assert_message_prettifying(ttt "\n", ttt "\n\n\n\n", 0);
+	assert_message_prettifying(ttt ttt "\n", ttt ttt "\n\n\n\n", 0);
+	assert_message_prettifying(ttt ttt ttt "\n", ttt ttt ttt "\n\n\n\n", 0);
+	assert_message_prettifying(ttt ttt ttt ttt "\n", ttt ttt ttt ttt "\n\n\n\n", 0);
+	assert_message_prettifying(ttt "\n", ttt "\n" sss "\n" sss "\n" sss "\n", 0);
+	assert_message_prettifying(ttt "\n", ttt "\n\n" sss "\n" sss sss "\n", 0);
+	assert_message_prettifying(ttt "\n", ttt "\n" sss sss "\n" sss "\n\n", 0);
+	assert_message_prettifying(ttt "\n", ttt "\n" sss sss sss "\n\n\n", 0);
+	assert_message_prettifying(ttt "\n", ttt "\n\n" sss sss sss "\n\n", 0);
+	assert_message_prettifying(ttt "\n", ttt "\n\n\n" sss sss sss "\n\n", 0);
+}
+
+void test_object_message__text_without_newline_at_end_should_end_with_newline(void)
+{
+	assert_message_prettifying(ttt "\n", ttt, 0);
+	assert_message_prettifying(ttt ttt "\n", ttt ttt, 0);
+	assert_message_prettifying(ttt ttt ttt "\n", ttt ttt ttt, 0);
+	assert_message_prettifying(ttt ttt ttt ttt "\n", ttt ttt ttt ttt, 0);
+}
+
+void test_object_message__text_plus_spaces_without_newline_should_not_show_spaces_and_end_with_newline(void)
+{
+	assert_message_prettifying(ttt "\n", ttt sss, 0);
+	assert_message_prettifying(ttt ttt "\n", ttt ttt sss, 0);
+	assert_message_prettifying(ttt ttt ttt "\n", ttt ttt ttt sss, 0);
+	assert_message_prettifying(ttt "\n", ttt sss sss, 0);
+	assert_message_prettifying(ttt ttt "\n", ttt ttt sss sss, 0);
+	assert_message_prettifying(ttt "\n", ttt sss sss sss, 0);
+}
+
+void test_object_message__text_plus_spaces_ending_with_newline_should_be_cleaned_and_newline_must_remain(void){
+	assert_message_prettifying(ttt "\n", ttt sss "\n", 0);
+	assert_message_prettifying(ttt "\n", ttt sss sss "\n", 0);
+	assert_message_prettifying(ttt "\n", ttt sss sss sss "\n", 0);
+	assert_message_prettifying(ttt ttt "\n", ttt ttt sss "\n", 0);
+	assert_message_prettifying(ttt ttt "\n", ttt ttt sss sss "\n", 0);
+	assert_message_prettifying(ttt ttt ttt "\n", ttt ttt ttt sss "\n", 0);
+}
+
+void test_object_message__spaces_with_newline_at_end_should_be_replaced_with_empty_string(void)
+{
+	assert_message_prettifying("", sss "\n", 0);
+	assert_message_prettifying("", sss sss "\n", 0);
+	assert_message_prettifying("", sss sss sss "\n", 0);
+	assert_message_prettifying("", sss sss sss sss "\n", 0);
+}
+
+void test_object_message__spaces_without_newline_at_end_should_be_replaced_with_empty_string(void)
+{
+	assert_message_prettifying("", "", 0);
+	assert_message_prettifying("", sss sss, 0);
+	assert_message_prettifying("", sss sss sss, 0);
+	assert_message_prettifying("", sss sss sss sss, 0);
+}
+
+void test_object_message__consecutive_text_lines_should_be_unchanged(void)
+{
+	assert_message_prettifying(ttt ttt "\n" ttt "\n", ttt ttt "\n" ttt "\n", 0);
+	assert_message_prettifying(ttt "\n" ttt ttt "\n" ttt "\n", ttt "\n" ttt ttt "\n" ttt "\n", 0);
+	assert_message_prettifying(ttt "\n" ttt "\n" ttt "\n" ttt ttt "\n", ttt "\n" ttt "\n" ttt "\n" ttt ttt "\n", 0);
+	assert_message_prettifying(ttt "\n" ttt "\n\n" ttt ttt "\n" ttt "\n", ttt "\n" ttt "\n\n" ttt ttt "\n" ttt "\n", 0);
+	assert_message_prettifying(ttt ttt "\n\n" ttt "\n" ttt ttt "\n", ttt ttt "\n\n" ttt "\n" ttt ttt "\n", 0);
+	assert_message_prettifying(ttt "\n" ttt ttt "\n\n" ttt "\n", ttt "\n" ttt ttt "\n\n" ttt "\n", 0);
+}
+
+void test_object_message__strip_comments(void)
+{
+	assert_message_prettifying("", "# comment", 1);
+	assert_message_prettifying("", "# comment\n", 1);
+	assert_message_prettifying("", "# comment    \n", 1);
+
+	assert_message_prettifying(ttt "\n", ttt "\n" "# comment\n", 1);
+	assert_message_prettifying(ttt "\n", "# comment\n" ttt "\n", 1);
+	assert_message_prettifying(ttt "\n" ttt "\n", ttt "\n" "# comment\n" ttt "\n", 1);
+}
+
+void test_object_message__keep_comments(void)
+{
+	assert_message_prettifying("# comment\n", "# comment", 0);
+	assert_message_prettifying("# comment\n", "# comment\n", 0);
+	assert_message_prettifying("# comment\n", "# comment    \n", 0);
+
+	assert_message_prettifying(ttt "\n" "# comment\n", ttt "\n" "# comment\n", 0);
+	assert_message_prettifying("# comment\n" ttt "\n", "# comment\n" ttt "\n", 0);
+	assert_message_prettifying(ttt "\n" "# comment\n" ttt "\n", ttt "\n" "# comment\n" ttt "\n", 0);
+}
+
+void test_object_message__message_prettify(void)
+{
+	git_buf buffer;
+
+	memset(&buffer, 0, sizeof(buffer));
+	cl_git_pass(git_message_prettify(&buffer, "", 0, '#'));
+	cl_assert_equal_s(buffer.ptr, "");
+	git_buf_dispose(&buffer);
+	cl_git_pass(git_message_prettify(&buffer, "", 1, '#'));
+	cl_assert_equal_s(buffer.ptr, "");
+	git_buf_dispose(&buffer);
+
+	cl_git_pass(git_message_prettify(&buffer, "Short", 0, '#'));
+	cl_assert_equal_s("Short\n", buffer.ptr);
+	git_buf_dispose(&buffer);
+	cl_git_pass(git_message_prettify(&buffer, "Short", 1, '#'));
+	cl_assert_equal_s("Short\n", buffer.ptr);
+	git_buf_dispose(&buffer);
+
+	cl_git_pass(git_message_prettify(&buffer, "This is longer\nAnd multiline\n# with some comments still in\n", 0, '#'));
+	cl_assert_equal_s(buffer.ptr, "This is longer\nAnd multiline\n# with some comments still in\n");
+	git_buf_dispose(&buffer);
+
+	cl_git_pass(git_message_prettify(&buffer, "This is longer\nAnd multiline\n# with some comments still in\n", 1, '#'));
+	cl_assert_equal_s(buffer.ptr, "This is longer\nAnd multiline\n");
+	git_buf_dispose(&buffer);
+}
diff --git a/tests/libgit2/object/peel.c b/tests/libgit2/object/peel.c
new file mode 100644
index 000000000..8be6e42d4
--- /dev/null
+++ b/tests/libgit2/object/peel.c
@@ -0,0 +1,118 @@
+#include "clar_libgit2.h"
+
+static git_repository *g_repo;
+
+void test_object_peel__initialize(void)
+{
+	cl_git_pass(git_repository_open(&g_repo, cl_fixture("testrepo.git")));
+}
+
+void test_object_peel__cleanup(void)
+{
+	git_repository_free(g_repo);
+	g_repo = NULL;
+}
+
+static void assert_peel(
+	const char *sha,
+	git_object_t requested_type,
+	const char* expected_sha,
+	git_object_t expected_type)
+{
+	git_oid oid, expected_oid;
+	git_object *obj;
+	git_object *peeled;
+
+	cl_git_pass(git_oid_fromstr(&oid, sha));
+	cl_git_pass(git_object_lookup(&obj, g_repo, &oid, GIT_OBJECT_ANY));
+
+	cl_git_pass(git_object_peel(&peeled, obj, requested_type));
+
+	cl_git_pass(git_oid_fromstr(&expected_oid, expected_sha));
+	cl_assert_equal_oid(&expected_oid, git_object_id(peeled));
+
+	cl_assert_equal_i(expected_type, git_object_type(peeled));
+
+	git_object_free(peeled);
+	git_object_free(obj);
+}
+
+static void assert_peel_error(int error, const char *sha, git_object_t requested_type)
+{
+	git_oid oid;
+	git_object *obj;
+	git_object *peeled;
+
+	cl_git_pass(git_oid_fromstr(&oid, sha));
+	cl_git_pass(git_object_lookup(&obj, g_repo, &oid, GIT_OBJECT_ANY));
+
+	cl_assert_equal_i(error, git_object_peel(&peeled, obj, requested_type));
+
+	git_object_free(obj);
+}
+
+void test_object_peel__peeling_an_object_into_its_own_type_returns_another_instance_of_it(void)
+{
+	assert_peel("e90810b8df3e80c413d903f631643c716887138d", GIT_OBJECT_COMMIT,
+		"e90810b8df3e80c413d903f631643c716887138d", GIT_OBJECT_COMMIT);
+	assert_peel("7b4384978d2493e851f9cca7858815fac9b10980", GIT_OBJECT_TAG,
+		"7b4384978d2493e851f9cca7858815fac9b10980", GIT_OBJECT_TAG);
+	assert_peel("53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJECT_TREE,
+		"53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJECT_TREE);
+	assert_peel("0266163a49e280c4f5ed1e08facd36a2bd716bcf", GIT_OBJECT_BLOB,
+		"0266163a49e280c4f5ed1e08facd36a2bd716bcf", GIT_OBJECT_BLOB);
+}
+
+void test_object_peel__tag(void)
+{
+	assert_peel("7b4384978d2493e851f9cca7858815fac9b10980", GIT_OBJECT_COMMIT,
+		"e90810b8df3e80c413d903f631643c716887138d", GIT_OBJECT_COMMIT);
+	assert_peel("7b4384978d2493e851f9cca7858815fac9b10980", GIT_OBJECT_TREE,
+		"53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJECT_TREE);
+	assert_peel_error(GIT_EPEEL, "7b4384978d2493e851f9cca7858815fac9b10980", GIT_OBJECT_BLOB);
+	assert_peel("7b4384978d2493e851f9cca7858815fac9b10980", GIT_OBJECT_ANY,
+		    "e90810b8df3e80c413d903f631643c716887138d", GIT_OBJECT_COMMIT);
+}
+
+void test_object_peel__commit(void)
+{
+	assert_peel_error(GIT_EINVALIDSPEC, "e90810b8df3e80c413d903f631643c716887138d", GIT_OBJECT_BLOB);
+	assert_peel("e90810b8df3e80c413d903f631643c716887138d", GIT_OBJECT_TREE,
+		    "53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJECT_TREE);
+	assert_peel("e90810b8df3e80c413d903f631643c716887138d", GIT_OBJECT_COMMIT,
+		    "e90810b8df3e80c413d903f631643c716887138d", GIT_OBJECT_COMMIT);
+	assert_peel_error(GIT_EINVALIDSPEC, "e90810b8df3e80c413d903f631643c716887138d", GIT_OBJECT_TAG);
+	assert_peel("e90810b8df3e80c413d903f631643c716887138d", GIT_OBJECT_ANY,
+		    "53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJECT_TREE);
+}
+
+void test_object_peel__tree(void)
+{
+	assert_peel_error(GIT_EINVALIDSPEC, "53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJECT_BLOB);
+	assert_peel("53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJECT_TREE,
+		    "53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJECT_TREE);
+	assert_peel_error(GIT_EINVALIDSPEC, "53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJECT_COMMIT);
+	assert_peel_error(GIT_EINVALIDSPEC, "53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJECT_TAG);
+	assert_peel_error(GIT_EINVALIDSPEC, "53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJECT_ANY);
+}
+
+void test_object_peel__blob(void)
+{
+	assert_peel("0266163a49e280c4f5ed1e08facd36a2bd716bcf", GIT_OBJECT_BLOB,
+		    "0266163a49e280c4f5ed1e08facd36a2bd716bcf", GIT_OBJECT_BLOB);
+	assert_peel_error(GIT_EINVALIDSPEC, "0266163a49e280c4f5ed1e08facd36a2bd716bcf", GIT_OBJECT_TREE);
+	assert_peel_error(GIT_EINVALIDSPEC, "0266163a49e280c4f5ed1e08facd36a2bd716bcf", GIT_OBJECT_COMMIT);
+	assert_peel_error(GIT_EINVALIDSPEC, "0266163a49e280c4f5ed1e08facd36a2bd716bcf", GIT_OBJECT_TAG);
+	assert_peel_error(GIT_EINVALIDSPEC, "0266163a49e280c4f5ed1e08facd36a2bd716bcf", GIT_OBJECT_ANY);
+}
+
+void test_object_peel__target_any_object_for_type_change(void)
+{
+	/* tag to commit */
+	assert_peel("7b4384978d2493e851f9cca7858815fac9b10980", GIT_OBJECT_ANY,
+		"e90810b8df3e80c413d903f631643c716887138d", GIT_OBJECT_COMMIT);
+
+	/* commit to tree */
+	assert_peel("e90810b8df3e80c413d903f631643c716887138d", GIT_OBJECT_ANY,
+		"53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJECT_TREE);
+}
diff --git a/tests/libgit2/object/raw/chars.c b/tests/libgit2/object/raw/chars.c
new file mode 100644
index 000000000..cde0bdbf6
--- /dev/null
+++ b/tests/libgit2/object/raw/chars.c
@@ -0,0 +1,41 @@
+
+#include "clar_libgit2.h"
+
+#include "odb.h"
+
+void test_object_raw_chars__find_invalid_chars_in_oid(void)
+{
+	git_oid out;
+	unsigned char exp[] = {
+		0x16, 0xa6, 0x77, 0x70, 0xb7,
+		0xd8, 0xd7, 0x23, 0x17, 0xc4,
+		0xb7, 0x75, 0x21, 0x3c, 0x23,
+		0xa8, 0xbd, 0x74, 0xf5, 0xe0,
+	};
+	char in[] = "16a67770b7d8d72317c4b775213c23a8bd74f5e0";
+	unsigned int i;
+
+	for (i = 0; i < 256; i++) {
+		in[38] = (char)i;
+		if (git__fromhex(i) >= 0) {
+			exp[19] = (unsigned char)(git__fromhex(i) << 4);
+			cl_git_pass(git_oid_fromstr(&out, in));
+			cl_assert(memcmp(out.id, exp, sizeof(out.id)) == 0);
+		} else {
+			cl_git_fail(git_oid_fromstr(&out, in));
+		}
+	}
+}
+
+void test_object_raw_chars__build_valid_oid_from_raw_bytes(void)
+{
+	git_oid out;
+	unsigned char exp[] = {
+		0x16, 0xa6, 0x77, 0x70, 0xb7,
+		0xd8, 0xd7, 0x23, 0x17, 0xc4,
+		0xb7, 0x75, 0x21, 0x3c, 0x23,
+		0xa8, 0xbd, 0x74, 0xf5, 0xe0,
+	};
+	git_oid_fromraw(&out, exp);
+	cl_git_pass(memcmp(out.id, exp, sizeof(out.id)));
+}
diff --git a/tests/libgit2/object/raw/compare.c b/tests/libgit2/object/raw/compare.c
new file mode 100644
index 000000000..56c016b72
--- /dev/null
+++ b/tests/libgit2/object/raw/compare.c
@@ -0,0 +1,123 @@
+
+#include "clar_libgit2.h"
+
+#include "odb.h"
+
+void test_object_raw_compare__succeed_on_copy_oid(void)
+{
+	git_oid a, b;
+	unsigned char exp[] = {
+		0x16, 0xa6, 0x77, 0x70, 0xb7,
+		0xd8, 0xd7, 0x23, 0x17, 0xc4,
+		0xb7, 0x75, 0x21, 0x3c, 0x23,
+		0xa8, 0xbd, 0x74, 0xf5, 0xe0,
+	};
+	memset(&b, 0, sizeof(b));
+	git_oid_fromraw(&a, exp);
+	git_oid_cpy(&b, &a);
+	cl_git_pass(memcmp(a.id, exp, sizeof(a.id)));
+}
+
+void test_object_raw_compare__succeed_on_oid_comparison_lesser(void)
+{
+	git_oid a, b;
+	unsigned char a_in[] = {
+		0x16, 0xa6, 0x77, 0x70, 0xb7,
+		0xd8, 0xd7, 0x23, 0x17, 0xc4,
+		0xb7, 0x75, 0x21, 0x3c, 0x23,
+		0xa8, 0xbd, 0x74, 0xf5, 0xe0,
+	};
+	unsigned char b_in[] = {
+		0x16, 0xa6, 0x77, 0x70, 0xb7,
+		0xd8, 0xd7, 0x23, 0x17, 0xc4,
+		0xb7, 0x75, 0x21, 0x3c, 0x23,
+		0xa8, 0xbd, 0x74, 0xf5, 0xf0,
+	};
+	git_oid_fromraw(&a, a_in);
+	git_oid_fromraw(&b, b_in);
+	cl_assert(git_oid_cmp(&a, &b) < 0);
+}
+
+void test_object_raw_compare__succeed_on_oid_comparison_equal(void)
+{
+	git_oid a, b;
+	unsigned char a_in[] = {
+		0x16, 0xa6, 0x77, 0x70, 0xb7,
+		0xd8, 0xd7, 0x23, 0x17, 0xc4,
+		0xb7, 0x75, 0x21, 0x3c, 0x23,
+		0xa8, 0xbd, 0x74, 0xf5, 0xe0,
+	};
+	git_oid_fromraw(&a, a_in);
+	git_oid_fromraw(&b, a_in);
+	cl_assert(git_oid_cmp(&a, &b) == 0);
+}
+
+void test_object_raw_compare__succeed_on_oid_comparison_greater(void)
+{
+	git_oid a, b;
+	unsigned char a_in[] = {
+		0x16, 0xa6, 0x77, 0x70, 0xb7,
+		0xd8, 0xd7, 0x23, 0x17, 0xc4,
+		0xb7, 0x75, 0x21, 0x3c, 0x23,
+		0xa8, 0xbd, 0x74, 0xf5, 0xe0,
+	};
+	unsigned char b_in[] = {
+		0x16, 0xa6, 0x77, 0x70, 0xb7,
+		0xd8, 0xd7, 0x23, 0x17, 0xc4,
+		0xb7, 0x75, 0x21, 0x3c, 0x23,
+		0xa8, 0xbd, 0x74, 0xf5, 0xd0,
+	};
+	git_oid_fromraw(&a, a_in);
+	git_oid_fromraw(&b, b_in);
+	cl_assert(git_oid_cmp(&a, &b) > 0);
+}
+
+void test_object_raw_compare__compare_fmt_oids(void)
+{
+	const char *exp = "16a0123456789abcdef4b775213c23a8bd74f5e0";
+	git_oid in;
+	char out[GIT_OID_HEXSZ + 1];
+
+	cl_git_pass(git_oid_fromstr(&in, exp));
+
+	/* Format doesn't touch the last byte */
+	out[GIT_OID_HEXSZ] = 'Z';
+	git_oid_fmt(out, &in);
+	cl_assert(out[GIT_OID_HEXSZ] == 'Z');
+
+	/* Format produced the right result */
+	out[GIT_OID_HEXSZ] = '\0';
+	cl_assert_equal_s(exp, out);
+}
+
+void test_object_raw_compare__compare_static_oids(void)
+{
+	const char *exp = "16a0123456789abcdef4b775213c23a8bd74f5e0";
+	git_oid in;
+	char *out;
+
+	cl_git_pass(git_oid_fromstr(&in, exp));
+
+	out = git_oid_tostr_s(&in);
+	cl_assert(out);
+	cl_assert_equal_s(exp, out);
+}
+
+void test_object_raw_compare__compare_pathfmt_oids(void)
+{
+	const char *exp1 = "16a0123456789abcdef4b775213c23a8bd74f5e0";
+	const char *exp2 = "16/a0123456789abcdef4b775213c23a8bd74f5e0";
+	git_oid in;
+	char out[GIT_OID_HEXSZ + 2];
+
+	cl_git_pass(git_oid_fromstr(&in, exp1));
+
+	/* Format doesn't touch the last byte */
+	out[GIT_OID_HEXSZ + 1] = 'Z';
+	git_oid_pathfmt(out, &in);
+	cl_assert(out[GIT_OID_HEXSZ + 1] == 'Z');
+
+	/* Format produced the right result */
+	out[GIT_OID_HEXSZ + 1] = '\0';
+	cl_assert_equal_s(exp2, out);
+}
diff --git a/tests/libgit2/object/raw/convert.c b/tests/libgit2/object/raw/convert.c
new file mode 100644
index 000000000..40a01ae09
--- /dev/null
+++ b/tests/libgit2/object/raw/convert.c
@@ -0,0 +1,112 @@
+
+#include "clar_libgit2.h"
+
+#include "odb.h"
+
+void test_object_raw_convert__succeed_on_oid_to_string_conversion(void)
+{
+	const char *exp = "16a0123456789abcdef4b775213c23a8bd74f5e0";
+	git_oid in;
+	char out[GIT_OID_HEXSZ + 1];
+	char *str;
+	int i;
+
+	cl_git_pass(git_oid_fromstr(&in, exp));
+
+	/* NULL buffer pointer, returns static empty string */
+	str = git_oid_tostr(NULL, sizeof(out), &in);
+	cl_assert(str && *str == '\0' && str != out);
+
+	/* zero buffer size, returns static empty string */
+	str = git_oid_tostr(out, 0, &in);
+	cl_assert(str && *str == '\0' && str != out);
+
+	/* NULL oid pointer, sets existing buffer to empty string */
+	str = git_oid_tostr(out, sizeof(out), NULL);
+	cl_assert(str && *str == '\0' && str == out);
+
+	/* n == 1, returns out as an empty string */
+	str = git_oid_tostr(out, 1, &in);
+	cl_assert(str && *str == '\0' && str == out);
+
+	for (i = 1; i < GIT_OID_HEXSZ; i++) {
+		out[i+1] = 'Z';
+		str = git_oid_tostr(out, i+1, &in);
+		/* returns out containing c-string */
+		cl_assert(str && str == out);
+		/* must be '\0' terminated */
+		cl_assert(*(str+i) == '\0');
+		/* must not touch bytes past end of string */
+		cl_assert(*(str+(i+1)) == 'Z');
+		/* i == n-1 characters of string */
+		cl_git_pass(strncmp(exp, out, i));
+	}
+
+	/* returns out as hex formatted c-string */
+	str = git_oid_tostr(out, sizeof(out), &in);
+	cl_assert(str && str == out && *(str+GIT_OID_HEXSZ) == '\0');
+	cl_assert_equal_s(exp, out);
+}
+
+void test_object_raw_convert__succeed_on_oid_to_string_conversion_big(void)
+{
+	const char *exp = "16a0123456789abcdef4b775213c23a8bd74f5e0";
+	git_oid in;
+	char big[GIT_OID_HEXSZ + 1 + 3]; /* note + 4 => big buffer */
+	char *str;
+
+	cl_git_pass(git_oid_fromstr(&in, exp));
+
+	/* place some tail material */
+	big[GIT_OID_HEXSZ+0] = 'W'; /* should be '\0' afterwards */
+	big[GIT_OID_HEXSZ+1] = 'X'; /* should remain untouched   */
+	big[GIT_OID_HEXSZ+2] = 'Y'; /* ditto */
+	big[GIT_OID_HEXSZ+3] = 'Z'; /* ditto */
+
+	/* returns big as hex formatted c-string */
+	str = git_oid_tostr(big, sizeof(big), &in);
+	cl_assert(str && str == big && *(str+GIT_OID_HEXSZ) == '\0');
+	cl_assert_equal_s(exp, big);
+
+	/* check tail material is untouched */
+	cl_assert(str && str == big && *(str+GIT_OID_HEXSZ+1) == 'X');
+	cl_assert(str && str == big && *(str+GIT_OID_HEXSZ+2) == 'Y');
+	cl_assert(str && str == big && *(str+GIT_OID_HEXSZ+3) == 'Z');
+}
+
+static void check_partial_oid(
+	char *buffer, size_t count, const git_oid *oid, const char *expected)
+{
+	git_oid_nfmt(buffer, count, oid);
+	buffer[count] = '\0';
+	cl_assert_equal_s(expected, buffer);
+}
+
+void test_object_raw_convert__convert_oid_partially(void)
+{
+	const char *exp = "16a0123456789abcdef4b775213c23a8bd74f5e0";
+	git_oid in;
+	char big[GIT_OID_HEXSZ + 1 + 3]; /* note + 4 => big buffer */
+
+	cl_git_pass(git_oid_fromstr(&in, exp));
+
+	git_oid_nfmt(big, sizeof(big), &in);
+	cl_assert_equal_s(exp, big);
+
+	git_oid_nfmt(big, GIT_OID_HEXSZ + 1, &in);
+	cl_assert_equal_s(exp, big);
+
+	check_partial_oid(big, 1, &in, "1");
+	check_partial_oid(big, 2, &in, "16");
+	check_partial_oid(big, 3, &in, "16a");
+	check_partial_oid(big, 4, &in, "16a0");
+	check_partial_oid(big, 5, &in, "16a01");
+
+	check_partial_oid(big, GIT_OID_HEXSZ, &in, exp);
+	check_partial_oid(
+		big, GIT_OID_HEXSZ - 1, &in, "16a0123456789abcdef4b775213c23a8bd74f5e");
+	check_partial_oid(
+		big, GIT_OID_HEXSZ - 2, &in, "16a0123456789abcdef4b775213c23a8bd74f5");
+	check_partial_oid(
+		big, GIT_OID_HEXSZ - 3, &in, "16a0123456789abcdef4b775213c23a8bd74f");
+}
diff --git a/tests/libgit2/object/raw/data.h b/tests/libgit2/object/raw/data.h
new file mode 100644
index 000000000..57431e70e
--- /dev/null
+++ b/tests/libgit2/object/raw/data.h
@@ -0,0 +1,323 @@
+
+/*
+ * Raw data
+ */
+static unsigned char commit_data[] = {
+    0x74, 0x72, 0x65, 0x65, 0x20, 0x64, 0x66, 0x66,
+    0x32, 0x64, 0x61, 0x39, 0x30, 0x62, 0x32, 0x35,
+    0x34, 0x65, 0x31, 0x62, 0x65, 0x62, 0x38, 0x38,
+    0x39, 0x64, 0x31, 0x66, 0x31, 0x66, 0x31, 0x32,
+    0x38, 0x38, 0x62, 0x65, 0x31, 0x38, 0x30, 0x33,
+    0x37, 0x38, 0x32, 0x64, 0x66, 0x0a, 0x61, 0x75,
+    0x74, 0x68, 0x6f, 0x72, 0x20, 0x41, 0x20, 0x55,
+    0x20, 0x54, 0x68, 0x6f, 0x72, 0x20, 0x3c, 0x61,
+    0x75, 0x74, 0x68, 0x6f, 0x72, 0x40, 0x65, 0x78,
+    0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f,
+    0x6d, 0x3e, 0x20, 0x31, 0x32, 0x32, 0x37, 0x38,
+    0x31, 0x34, 0x32, 0x39, 0x37, 0x20, 0x2b, 0x30,
+    0x30, 0x30, 0x30, 0x0a, 0x63, 0x6f, 0x6d, 0x6d,
+    0x69, 0x74, 0x74, 0x65, 0x72, 0x20, 0x43, 0x20,
+    0x4f, 0x20, 0x4d, 0x69, 0x74, 0x74, 0x65, 0x72,
+    0x20, 0x3c, 0x63, 0x6f, 0x6d, 0x6d, 0x69, 0x74,
+    0x74, 0x65, 0x72, 0x40, 0x65, 0x78, 0x61, 0x6d,
+    0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d, 0x3e,
+    0x20, 0x31, 0x32, 0x32, 0x37, 0x38, 0x31, 0x34,
+    0x32, 0x39, 0x37, 0x20, 0x2b, 0x30, 0x30, 0x30,
+    0x30, 0x0a, 0x0a, 0x41, 0x20, 0x6f, 0x6e, 0x65,
+    0x2d, 0x6c, 0x69, 0x6e, 0x65, 0x20, 0x63, 0x6f,
+    0x6d, 0x6d, 0x69, 0x74, 0x20, 0x73, 0x75, 0x6d,
+    0x6d, 0x61, 0x72, 0x79, 0x0a, 0x0a, 0x54, 0x68,
+    0x65, 0x20, 0x62, 0x6f, 0x64, 0x79, 0x20, 0x6f,
+    0x66, 0x20, 0x74, 0x68, 0x65, 0x20, 0x63, 0x6f,
+    0x6d, 0x6d, 0x69, 0x74, 0x20, 0x6d, 0x65, 0x73,
+    0x73, 0x61, 0x67, 0x65, 0x2c, 0x20, 0x63, 0x6f,
+    0x6e, 0x74, 0x61, 0x69, 0x6e, 0x69, 0x6e, 0x67,
+    0x20, 0x66, 0x75, 0x72, 0x74, 0x68, 0x65, 0x72,
+    0x20, 0x65, 0x78, 0x70, 0x6c, 0x61, 0x6e, 0x61,
+    0x74, 0x69, 0x6f, 0x6e, 0x0a, 0x6f, 0x66, 0x20,
+    0x74, 0x68, 0x65, 0x20, 0x70, 0x75, 0x72, 0x70,
+    0x6f, 0x73, 0x65, 0x20, 0x6f, 0x66, 0x20, 0x74,
+    0x68, 0x65, 0x20, 0x63, 0x68, 0x61, 0x6e, 0x67,
+    0x65, 0x73, 0x20, 0x69, 0x6e, 0x74, 0x72, 0x6f,
+    0x64, 0x75, 0x63, 0x65, 0x64, 0x20, 0x62, 0x79,
+    0x20, 0x74, 0x68, 0x65, 0x20, 0x63, 0x6f, 0x6d,
+    0x6d, 0x69, 0x74, 0x2e, 0x0a, 0x0a, 0x53, 0x69,
+    0x67, 0x6e, 0x65, 0x64, 0x2d, 0x6f, 0x66, 0x2d,
+    0x62, 0x79, 0x3a, 0x20, 0x41, 0x20, 0x55, 0x20,
+    0x54, 0x68, 0x6f, 0x72, 0x20, 0x3c, 0x61, 0x75,
+    0x74, 0x68, 0x6f, 0x72, 0x40, 0x65, 0x78, 0x61,
+    0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d,
+    0x3e, 0x0a,
+};
+
+
+static unsigned char tree_data[] = {
+    0x31, 0x30, 0x30, 0x36, 0x34, 0x34, 0x20, 0x6f,
+    0x6e, 0x65, 0x00, 0x8b, 0x13, 0x78, 0x91, 0x79,
+    0x1f, 0xe9, 0x69, 0x27, 0xad, 0x78, 0xe6, 0x4b,
+    0x0a, 0xad, 0x7b, 0xde, 0xd0, 0x8b, 0xdc, 0x31,
+    0x30, 0x30, 0x36, 0x34, 0x34, 0x20, 0x73, 0x6f,
+    0x6d, 0x65, 0x00, 0xfd, 0x84, 0x30, 0xbc, 0x86,
+    0x4c, 0xfc, 0xd5, 0xf1, 0x0e, 0x55, 0x90, 0xf8,
+    0xa4, 0x47, 0xe0, 0x1b, 0x94, 0x2b, 0xfe, 0x31,
+    0x30, 0x30, 0x36, 0x34, 0x34, 0x20, 0x74, 0x77,
+    0x6f, 0x00, 0x78, 0x98, 0x19, 0x22, 0x61, 0x3b,
+    0x2a, 0xfb, 0x60, 0x25, 0x04, 0x2f, 0xf6, 0xbd,
+    0x87, 0x8a, 0xc1, 0x99, 0x4e, 0x85, 0x31, 0x30,
+    0x30, 0x36, 0x34, 0x34, 0x20, 0x7a, 0x65, 0x72,
+    0x6f, 0x00, 0xe6, 0x9d, 0xe2, 0x9b, 0xb2, 0xd1,
+    0xd6, 0x43, 0x4b, 0x8b, 0x29, 0xae, 0x77, 0x5a,
+    0xd8, 0xc2, 0xe4, 0x8c, 0x53, 0x91,
+};
+
+static unsigned char tag_data[] = {
+    0x6f, 0x62, 0x6a, 0x65, 0x63, 0x74, 0x20, 0x33,
+    0x64, 0x37, 0x66, 0x38, 0x61, 0x36, 0x61, 0x66,
+    0x30, 0x37, 0x36, 0x63, 0x38, 0x63, 0x33, 0x66,
+    0x32, 0x30, 0x30, 0x37, 0x31, 0x61, 0x38, 0x39,
+    0x33, 0x35, 0x63, 0x64, 0x62, 0x65, 0x38, 0x32,
+    0x32, 0x38, 0x35, 0x39, 0x34, 0x64, 0x31, 0x0a,
+    0x74, 0x79, 0x70, 0x65, 0x20, 0x63, 0x6f, 0x6d,
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+    0x76, 0x30, 0x2e, 0x30, 0x2e, 0x31, 0x0a, 0x74,
+    0x61, 0x67, 0x67, 0x65, 0x72, 0x20, 0x43, 0x20,
+    0x4f, 0x20, 0x4d, 0x69, 0x74, 0x74, 0x65, 0x72,
+    0x20, 0x3c, 0x63, 0x6f, 0x6d, 0x6d, 0x69, 0x74,
+    0x74, 0x65, 0x72, 0x40, 0x65, 0x78, 0x61, 0x6d,
+    0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d, 0x3e,
+    0x20, 0x31, 0x32, 0x32, 0x37, 0x38, 0x31, 0x34,
+    0x32, 0x39, 0x37, 0x20, 0x2b, 0x30, 0x30, 0x30,
+    0x30, 0x0a, 0x0a, 0x54, 0x68, 0x69, 0x73, 0x20,
+    0x69, 0x73, 0x20, 0x74, 0x68, 0x65, 0x20, 0x74,
+    0x61, 0x67, 0x20, 0x6f, 0x62, 0x6a, 0x65, 0x63,
+    0x74, 0x20, 0x66, 0x6f, 0x72, 0x20, 0x72, 0x65,
+    0x6c, 0x65, 0x61, 0x73, 0x65, 0x20, 0x76, 0x30,
+    0x2e, 0x30, 0x2e, 0x31, 0x0a,
+};
+
+/*
+ * Dummy data
+ */
+static unsigned char zero_data[] = {
+    0x00,
+};
+
+static unsigned char one_data[] = {
+    0x0a,
+};
+
+static unsigned char two_data[] = {
+    0x61, 0x0a,
+};
+
+static unsigned char some_data[] = {
+    0x2f, 0x2a, 0x0a, 0x20, 0x2a, 0x20, 0x54, 0x68,
+    0x69, 0x73, 0x20, 0x66, 0x69, 0x6c, 0x65, 0x20,
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+    0x65, 0x74, 0x61, 0x69, 0x6c, 0x73, 0x2e, 0x0a,
+    0x20, 0x2a, 0x0a, 0x20, 0x2a, 0x20, 0x59, 0x6f,
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+    0x20, 0x47, 0x65, 0x6e, 0x65, 0x72, 0x61, 0x6c,
+    0x20, 0x50, 0x75, 0x62, 0x6c, 0x69, 0x63, 0x20,
+    0x4c, 0x69, 0x63, 0x65, 0x6e, 0x73, 0x65, 0x0a,
+    0x20, 0x2a, 0x20, 0x61, 0x6c, 0x6f, 0x6e, 0x67,
+    0x20, 0x77, 0x69, 0x74, 0x68, 0x20, 0x74, 0x68,
+    0x69, 0x73, 0x20, 0x70, 0x72, 0x6f, 0x67, 0x72,
+    0x61, 0x6d, 0x3b, 0x20, 0x73, 0x65, 0x65, 0x20,
+    0x74, 0x68, 0x65, 0x20, 0x66, 0x69, 0x6c, 0x65,
+    0x20, 0x43, 0x4f, 0x50, 0x59, 0x49, 0x4e, 0x47,
+    0x2e, 0x20, 0x20, 0x49, 0x66, 0x20, 0x6e, 0x6f,
+    0x74, 0x2c, 0x20, 0x77, 0x72, 0x69, 0x74, 0x65,
+    0x20, 0x74, 0x6f, 0x0a, 0x20, 0x2a, 0x20, 0x74,
+    0x68, 0x65, 0x20, 0x46, 0x72, 0x65, 0x65, 0x20,
+    0x53, 0x6f, 0x66, 0x74, 0x77, 0x61, 0x72, 0x65,
+    0x20, 0x46, 0x6f, 0x75, 0x6e, 0x64, 0x61, 0x74,
+    0x69, 0x6f, 0x6e, 0x2c, 0x20, 0x35, 0x31, 0x20,
+    0x46, 0x72, 0x61, 0x6e, 0x6b, 0x6c, 0x69, 0x6e,
+    0x20, 0x53, 0x74, 0x72, 0x65, 0x65, 0x74, 0x2c,
+    0x20, 0x46, 0x69, 0x66, 0x74, 0x68, 0x20, 0x46,
+    0x6c, 0x6f, 0x6f, 0x72, 0x2c, 0x0a, 0x20, 0x2a,
+    0x20, 0x42, 0x6f, 0x73, 0x74, 0x6f, 0x6e, 0x2c,
+    0x20, 0x4d, 0x41, 0x20, 0x30, 0x32, 0x31, 0x31,
+    0x30, 0x2d, 0x31, 0x33, 0x30, 0x31, 0x2c, 0x20,
+    0x55, 0x53, 0x41, 0x2e, 0x0a, 0x20, 0x2a, 0x2f,
+    0x0a,
+};
+
+/*
+ * SHA1 Hashes
+ */
+static char *commit_id = "3d7f8a6af076c8c3f20071a8935cdbe8228594d1";
+static char *tree_id = "dff2da90b254e1beb889d1f1f1288be1803782df";
+static char *tag_id = "09d373e1dfdc16b129ceec6dd649739911541e05";
+static char *zero_id = "e69de29bb2d1d6434b8b29ae775ad8c2e48c5391";
+static char *one_id = "8b137891791fe96927ad78e64b0aad7bded08bdc";
+static char *two_id = "78981922613b2afb6025042ff6bd878ac1994e85";
+static char *some_id = "fd8430bc864cfcd5f10e5590f8a447e01b942bfe";
+
+/*
+ * In-memory objects
+ */
+static git_rawobj tree_obj = {
+	tree_data,
+	sizeof(tree_data),
+	GIT_OBJECT_TREE
+};
+
+static git_rawobj tag_obj = {
+	tag_data,
+	sizeof(tag_data),
+	GIT_OBJECT_TAG
+};
+
+static git_rawobj zero_obj = {
+	zero_data,
+	0,
+	GIT_OBJECT_BLOB
+};
+
+static git_rawobj one_obj = {
+	one_data,
+	sizeof(one_data),
+	GIT_OBJECT_BLOB
+};
+
+static git_rawobj two_obj = {
+	two_data,
+	sizeof(two_data),
+	GIT_OBJECT_BLOB
+};
+
+static git_rawobj commit_obj = {
+	commit_data,
+	sizeof(commit_data),
+	GIT_OBJECT_COMMIT
+};
+
+static git_rawobj some_obj = {
+	some_data,
+	sizeof(some_data),
+	GIT_OBJECT_BLOB
+};
+
+static git_rawobj junk_obj = {
+	NULL,
+	0,
+	GIT_OBJECT_INVALID
+};
diff --git a/tests/libgit2/object/raw/fromstr.c b/tests/libgit2/object/raw/fromstr.c
new file mode 100644
index 000000000..8c11c105f
--- /dev/null
+++ b/tests/libgit2/object/raw/fromstr.c
@@ -0,0 +1,30 @@
+
+#include "clar_libgit2.h"
+
+#include "odb.h"
+
+void test_object_raw_fromstr__fail_on_invalid_oid_string(void)
+{
+	git_oid out;
+	cl_git_fail(git_oid_fromstr(&out, ""));
+	cl_git_fail(git_oid_fromstr(&out, "moo"));
+	cl_git_fail(git_oid_fromstr(&out, "16a67770b7d8d72317c4b775213c23a8bd74f5ez"));
+}
+
+void test_object_raw_fromstr__succeed_on_valid_oid_string(void)
+{
+	git_oid out;
+	unsigned char exp[] = {
+		0x16, 0xa6, 0x77, 0x70, 0xb7,
+		0xd8, 0xd7, 0x23, 0x17, 0xc4,
+		0xb7, 0x75, 0x21, 0x3c, 0x23,
+		0xa8, 0xbd, 0x74, 0xf5, 0xe0,
+	};
+
+	cl_git_pass(git_oid_fromstr(&out, "16a67770b7d8d72317c4b775213c23a8bd74f5e0"));
+	cl_git_pass(memcmp(out.id, exp, sizeof(out.id)));
+
+	cl_git_pass(git_oid_fromstr(&out, "16A67770B7D8D72317C4b775213C23A8BD74F5E0"));
+	cl_git_pass(memcmp(out.id, exp, sizeof(out.id)));
+
+}
diff --git a/tests/libgit2/object/raw/hash.c b/tests/libgit2/object/raw/hash.c
new file mode 100644
index 000000000..5a3e81855
--- /dev/null
+++ b/tests/libgit2/object/raw/hash.c
@@ -0,0 +1,169 @@
+
+#include "clar_libgit2.h"
+
+#include "odb.h"
+#include "hash.h"
+
+#include "data.h"
+
+static void hash_object_pass(git_oid *oid, git_rawobj *obj)
+{
+	cl_git_pass(git_odb_hash(oid, obj->data, obj->len, obj->type));
+}
+static void hash_object_fail(git_oid *oid, git_rawobj *obj)
+{
+	cl_git_fail(git_odb_hash(oid, obj->data, obj->len, obj->type));
+}
+
+static char *hello_id = "22596363b3de40b06f981fb85d82312e8c0ed511";
+static char *hello_text = "hello world\n";
+
+static char *bye_id = "ce08fe4884650f067bd5703b6a59a8b3b3c99a09";
+static char *bye_text = "bye world\n";
+
+void test_object_raw_hash__hash_by_blocks(void)
+{
+	git_hash_ctx ctx;
+	git_oid id1, id2;
+
+	cl_git_pass(git_hash_ctx_init(&ctx, GIT_HASH_ALGORITHM_SHA1));
+
+	/* should already be init'd */
+	cl_git_pass(git_hash_update(&ctx, hello_text, strlen(hello_text)));
+	cl_git_pass(git_hash_final(id2.id, &ctx));
+	cl_git_pass(git_oid_fromstr(&id1, hello_id));
+	cl_assert(git_oid_cmp(&id1, &id2) == 0);
+
+	/* reinit should permit reuse */
+	cl_git_pass(git_hash_init(&ctx));
+	cl_git_pass(git_hash_update(&ctx, bye_text, strlen(bye_text)));
+	cl_git_pass(git_hash_final(id2.id, &ctx));
+	cl_git_pass(git_oid_fromstr(&id1, bye_id));
+	cl_assert(git_oid_cmp(&id1, &id2) == 0);
+
+	git_hash_ctx_cleanup(&ctx);
+}
+
+void test_object_raw_hash__hash_buffer_in_single_call(void)
+{
+	git_oid id1, id2;
+
+	cl_git_pass(git_oid_fromstr(&id1, hello_id));
+	git_hash_buf(id2.id, hello_text, strlen(hello_text), GIT_HASH_ALGORITHM_SHA1);
+	cl_assert(git_oid_cmp(&id1, &id2) == 0);
+}
+
+void test_object_raw_hash__hash_vector(void)
+{
+	git_oid id1, id2;
+	git_str_vec vec[2];
+
+	cl_git_pass(git_oid_fromstr(&id1, hello_id));
+
+	vec[0].data = hello_text;
+	vec[0].len  = 4;
+	vec[1].data = hello_text+4;
+	vec[1].len  = strlen(hello_text)-4;
+
+	git_hash_vec(id2.id, vec, 2, GIT_HASH_ALGORITHM_SHA1);
+
+	cl_assert(git_oid_cmp(&id1, &id2) == 0);
+}
+
+void test_object_raw_hash__hash_junk_data(void)
+{
+	git_oid id, id_zero;
+
+	cl_git_pass(git_oid_fromstr(&id_zero, zero_id));
+
+	/* invalid types: */
+	junk_obj.data = some_data;
+	hash_object_fail(&id, &junk_obj);
+
+	junk_obj.type = 0; /* EXT1 */
+	hash_object_fail(&id, &junk_obj);
+
+	junk_obj.type = 5; /* EXT2 */
+	hash_object_fail(&id, &junk_obj);
+
+	junk_obj.type = GIT_OBJECT_OFS_DELTA;
+	hash_object_fail(&id, &junk_obj);
+
+	junk_obj.type = GIT_OBJECT_REF_DELTA;
+	hash_object_fail(&id, &junk_obj);
+
+	junk_obj.type = 42;
+	hash_object_fail(&id, &junk_obj);
+
+	/* data can be NULL only if len is zero: */
+	junk_obj.type = GIT_OBJECT_BLOB;
+	junk_obj.data = NULL;
+	hash_object_pass(&id, &junk_obj);
+	cl_assert(git_oid_cmp(&id, &id_zero) == 0);
+
+	junk_obj.len = 1;
+	hash_object_fail(&id, &junk_obj);
+}
+
+void test_object_raw_hash__hash_commit_object(void)
+{
+	git_oid id1, id2;
+
+	cl_git_pass(git_oid_fromstr(&id1, commit_id));
+	hash_object_pass(&id2, &commit_obj);
+	cl_assert(git_oid_cmp(&id1, &id2) == 0);
+}
+
+void test_object_raw_hash__hash_tree_object(void)
+{
+	git_oid id1, id2;
+
+	cl_git_pass(git_oid_fromstr(&id1, tree_id));
+	hash_object_pass(&id2, &tree_obj);
+	cl_assert(git_oid_cmp(&id1, &id2) == 0);
+}
+
+void test_object_raw_hash__hash_tag_object(void)
+{
+	git_oid id1, id2;
+
+	cl_git_pass(git_oid_fromstr(&id1, tag_id));
+	hash_object_pass(&id2, &tag_obj);
+	cl_assert(git_oid_cmp(&id1, &id2) == 0);
+}
+
+void test_object_raw_hash__hash_zero_length_object(void)
+{
+	git_oid id1, id2;
+
+	cl_git_pass(git_oid_fromstr(&id1, zero_id));
+	hash_object_pass(&id2, &zero_obj);
+	cl_assert(git_oid_cmp(&id1, &id2) == 0);
+}
+
+void test_object_raw_hash__hash_one_byte_object(void)
+{
+	git_oid id1, id2;
+
+	cl_git_pass(git_oid_fromstr(&id1, one_id));
+	hash_object_pass(&id2, &one_obj);
+	cl_assert(git_oid_cmp(&id1, &id2) == 0);
+}
+
+void test_object_raw_hash__hash_two_byte_object(void)
+{
+	git_oid id1, id2;
+
+	cl_git_pass(git_oid_fromstr(&id1, two_id));
+	hash_object_pass(&id2, &two_obj);
+	cl_assert(git_oid_cmp(&id1, &id2) == 0);
+}
+
+void test_object_raw_hash__hash_multi_byte_object(void)
+{
+	git_oid id1, id2;
+
+	cl_git_pass(git_oid_fromstr(&id1, some_id));
+	hash_object_pass(&id2, &some_obj);
+	cl_assert(git_oid_cmp(&id1, &id2) == 0);
+}
diff --git a/tests/libgit2/object/raw/short.c b/tests/libgit2/object/raw/short.c
new file mode 100644
index 000000000..e8d2cf5a5
--- /dev/null
+++ b/tests/libgit2/object/raw/short.c
@@ -0,0 +1,137 @@
+
+#include "clar_libgit2.h"
+
+#include "odb.h"
+#include "hash.h"
+
+void test_object_raw_short__oid_shortener_no_duplicates(void)
+{
+	git_oid_shorten *os;
+	int min_len;
+
+	os = git_oid_shorten_new(0);
+	cl_assert(os != NULL);
+
+	git_oid_shorten_add(os, "22596363b3de40b06f981fb85d82312e8c0ed511");
+	git_oid_shorten_add(os, "ce08fe4884650f067bd5703b6a59a8b3b3c99a09");
+	git_oid_shorten_add(os, "16a0123456789abcdef4b775213c23a8bd74f5e0");
+	min_len = git_oid_shorten_add(os, "ce08fe4884650f067bd5703b6a59a8b3b3c99a09");
+
+	cl_assert(min_len == GIT_OID_HEXSZ + 1);
+
+	git_oid_shorten_free(os);
+}
+
+static int insert_sequential_oids(
+	char ***out, git_oid_shorten *os, int n, int fail)
+{
+	int i, min_len = 0;
+	char numbuf[16];
+	git_oid oid;
+	char **oids = git__calloc(n, sizeof(char *));
+	cl_assert(oids != NULL);
+
+	for (i = 0; i < n; ++i) {
+		p_snprintf(numbuf, sizeof(numbuf), "%u", (unsigned int)i);
+		git_hash_buf(oid.id, numbuf, strlen(numbuf), GIT_HASH_ALGORITHM_SHA1);
+
+		oids[i] = git__malloc(GIT_OID_HEXSZ + 1);
+		cl_assert(oids[i]);
+		git_oid_nfmt(oids[i], GIT_OID_HEXSZ + 1, &oid);
+
+		min_len = git_oid_shorten_add(os, oids[i]);
+
+		/* After "fail", we expect git_oid_shorten_add to fail */
+		if (fail >= 0 && i >= fail)
+            cl_assert(min_len < 0);
+		else
+            cl_assert(min_len >= 0);
+	}
+
+	*out = oids;
+
+	return min_len;
+}
+
+static void free_oids(int n, char **oids)
+{
+	int i;
+
+	for (i = 0; i < n; ++i) {
+		git__free(oids[i]);
+	}
+	git__free(oids);
+}
+
+void test_object_raw_short__oid_shortener_stresstest_git_oid_shorten(void)
+{
+#define MAX_OIDS 1000
+
+	git_oid_shorten *os;
+	size_t i, j;
+	int min_len = 0, found_collision;
+	char **oids;
+
+	os = git_oid_shorten_new(0);
+	cl_assert(os != NULL);
+
+	/*
+	 * Insert in the shortener 1000 unique SHA1 ids
+	 */
+	min_len = insert_sequential_oids(&oids, os, MAX_OIDS, MAX_OIDS);
+	cl_assert(min_len > 0);
+
+	/*
+	 * Compare the first `min_char - 1` characters of each
+	 * SHA1 OID. If the minimizer worked, we should find at
+	 * least one collision
+	 */
+	found_collision = 0;
+	for (i = 0; i < MAX_OIDS; ++i) {
+		for (j = i + 1; j < MAX_OIDS; ++j) {
+			if (memcmp(oids[i], oids[j], min_len - 1) == 0)
+				found_collision = 1;
+		}
+	}
+	cl_assert_equal_b(true, found_collision);
+
+	/*
+	 * Compare the first `min_char` characters of each
+	 * SHA1 OID. If the minimizer worked, every single preffix
+	 * should be unique.
+	 */
+	found_collision = 0;
+	for (i = 0; i < MAX_OIDS; ++i) {
+		for (j = i + 1; j < MAX_OIDS; ++j) {
+			if (memcmp(oids[i], oids[j], min_len) == 0)
+				found_collision = 1;
+		}
+	}
+	cl_assert_equal_b(false, found_collision);
+
+	/* cleanup */
+	free_oids(MAX_OIDS, oids);
+	git_oid_shorten_free(os);
+
+#undef MAX_OIDS
+}
+
+void test_object_raw_short__oid_shortener_too_much_oids(void)
+{
+    /* The magic number of oids at which an oid_shortener will fail.
+     * This was experimentally established. */
+#define MAX_OIDS 24556
+
+	git_oid_shorten *os;
+	char **oids;
+
+	os = git_oid_shorten_new(0);
+	cl_assert(os != NULL);
+
+	cl_assert(insert_sequential_oids(&oids, os, MAX_OIDS, MAX_OIDS - 1) < 0);
+
+	free_oids(MAX_OIDS, oids);
+	git_oid_shorten_free(os);
+
+#undef MAX_OIDS
+}
diff --git a/tests/libgit2/object/raw/size.c b/tests/libgit2/object/raw/size.c
new file mode 100644
index 000000000..930c6de23
--- /dev/null
+++ b/tests/libgit2/object/raw/size.c
@@ -0,0 +1,13 @@
+
+#include "clar_libgit2.h"
+
+#include "odb.h"
+
+void test_object_raw_size__validate_oid_size(void)
+{
+	git_oid out;
+	cl_assert(20 == GIT_OID_RAWSZ);
+	cl_assert(40 == GIT_OID_HEXSZ);
+	cl_assert(sizeof(out) == GIT_OID_RAWSZ);
+	cl_assert(sizeof(out.id) == GIT_OID_RAWSZ);
+}
diff --git a/tests/libgit2/object/raw/type2string.c b/tests/libgit2/object/raw/type2string.c
new file mode 100644
index 000000000..ebd81f552
--- /dev/null
+++ b/tests/libgit2/object/raw/type2string.c
@@ -0,0 +1,54 @@
+
+#include "clar_libgit2.h"
+
+#include "odb.h"
+#include "hash.h"
+
+void test_object_raw_type2string__convert_type_to_string(void)
+{
+	cl_assert_equal_s(git_object_type2string(GIT_OBJECT_INVALID), "");
+	cl_assert_equal_s(git_object_type2string(0), ""); /* EXT1 */
+	cl_assert_equal_s(git_object_type2string(GIT_OBJECT_COMMIT), "commit");
+	cl_assert_equal_s(git_object_type2string(GIT_OBJECT_TREE), "tree");
+	cl_assert_equal_s(git_object_type2string(GIT_OBJECT_BLOB), "blob");
+	cl_assert_equal_s(git_object_type2string(GIT_OBJECT_TAG), "tag");
+	cl_assert_equal_s(git_object_type2string(5), ""); /* EXT2 */
+	cl_assert_equal_s(git_object_type2string(GIT_OBJECT_OFS_DELTA), "OFS_DELTA");
+	cl_assert_equal_s(git_object_type2string(GIT_OBJECT_REF_DELTA), "REF_DELTA");
+
+	cl_assert_equal_s(git_object_type2string(-2), "");
+	cl_assert_equal_s(git_object_type2string(8), "");
+	cl_assert_equal_s(git_object_type2string(1234), "");
+}
+
+void test_object_raw_type2string__convert_string_to_type(void)
+{
+	cl_assert(git_object_string2type(NULL) == GIT_OBJECT_INVALID);
+	cl_assert(git_object_string2type("") == GIT_OBJECT_INVALID);
+	cl_assert(git_object_string2type("commit") == GIT_OBJECT_COMMIT);
+	cl_assert(git_object_string2type("tree") == GIT_OBJECT_TREE);
+	cl_assert(git_object_string2type("blob") == GIT_OBJECT_BLOB);
+	cl_assert(git_object_string2type("tag") == GIT_OBJECT_TAG);
+	cl_assert(git_object_string2type("OFS_DELTA") == GIT_OBJECT_OFS_DELTA);
+	cl_assert(git_object_string2type("REF_DELTA") == GIT_OBJECT_REF_DELTA);
+
+	cl_assert(git_object_string2type("CoMmIt") == GIT_OBJECT_INVALID);
+	cl_assert(git_object_string2type("hohoho") == GIT_OBJECT_INVALID);
+}
+
+void test_object_raw_type2string__check_type_is_loose(void)
+{
+	cl_assert(git_object_typeisloose(GIT_OBJECT_INVALID) == 0);
+	cl_assert(git_object_typeisloose(0) == 0); /* EXT1 */
+	cl_assert(git_object_typeisloose(GIT_OBJECT_COMMIT) == 1);
+	cl_assert(git_object_typeisloose(GIT_OBJECT_TREE) == 1);
+	cl_assert(git_object_typeisloose(GIT_OBJECT_BLOB) == 1);
+	cl_assert(git_object_typeisloose(GIT_OBJECT_TAG) == 1);
+	cl_assert(git_object_typeisloose(5) == 0); /* EXT2 */
+	cl_assert(git_object_typeisloose(GIT_OBJECT_OFS_DELTA) == 0);
+	cl_assert(git_object_typeisloose(GIT_OBJECT_REF_DELTA) == 0);
+
+	cl_assert(git_object_typeisloose(-2) == 0);
+	cl_assert(git_object_typeisloose(8) == 0);
+	cl_assert(git_object_typeisloose(1234) == 0);
+}
diff --git a/tests/libgit2/object/raw/write.c b/tests/libgit2/object/raw/write.c
new file mode 100644
index 000000000..40e05f357
--- /dev/null
+++ b/tests/libgit2/object/raw/write.c
@@ -0,0 +1,462 @@
+#include "clar_libgit2.h"
+#include "git2/odb_backend.h"
+
+#include "futils.h"
+#include "odb.h"
+
+typedef struct object_data {
+    char *id;     /* object id (sha1)                          */
+    char *dir;    /* object store (fan-out) directory name     */
+    char *file;   /* object store filename                     */
+} object_data;
+
+static const char *odb_dir = "test-objects";
+
+void test_body(object_data *d, git_rawobj *o);
+
+
+
+/* Helpers */
+static void remove_object_files(object_data *d)
+{
+   cl_git_pass(p_unlink(d->file));
+   cl_git_pass(p_rmdir(d->dir));
+   cl_assert(errno != ENOTEMPTY);
+   cl_git_pass(p_rmdir(odb_dir) < 0);
+}
+
+static void streaming_write(git_oid *oid, git_odb *odb, git_rawobj *raw)
+{
+   git_odb_stream *stream;
+   int error;
+
+   cl_git_pass(git_odb_open_wstream(&stream, odb, raw->len, raw->type));
+   git_odb_stream_write(stream, raw->data, raw->len);
+   error = git_odb_stream_finalize_write(oid, stream);
+   git_odb_stream_free(stream);
+   cl_git_pass(error);
+}
+
+static void check_object_files(object_data *d)
+{
+   cl_assert(git_fs_path_exists(d->dir));
+   cl_assert(git_fs_path_exists(d->file));
+}
+
+static void cmp_objects(git_rawobj *o1, git_rawobj *o2)
+{
+   cl_assert(o1->type == o2->type);
+   cl_assert(o1->len == o2->len);
+   if (o1->len > 0)
+      cl_assert(memcmp(o1->data, o2->data, o1->len) == 0);
+}
+
+static void make_odb_dir(void)
+{
+	cl_git_pass(p_mkdir(odb_dir, GIT_OBJECT_DIR_MODE));
+}
+
+
+/* Standard test form */
+void test_body(object_data *d, git_rawobj *o)
+{
+   git_odb *db;
+   git_oid id1, id2;
+   git_odb_object *obj;
+   git_rawobj tmp;
+
+   make_odb_dir();
+   cl_git_pass(git_odb_open(&db, odb_dir));
+   cl_git_pass(git_oid_fromstr(&id1, d->id));
+
+   streaming_write(&id2, db, o);
+   cl_assert(git_oid_cmp(&id1, &id2) == 0);
+   check_object_files(d);
+
+   cl_git_pass(git_odb_read(&obj, db, &id1));
+
+   tmp.data = obj->buffer;
+   tmp.len = obj->cached.size;
+   tmp.type = obj->cached.type;
+
+   cmp_objects(&tmp, o);
+
+   git_odb_object_free(obj);
+   git_odb_free(db);
+   remove_object_files(d);
+}
+
+
+void test_object_raw_write__loose_object(void)
+{
+   object_data commit = {
+      "3d7f8a6af076c8c3f20071a8935cdbe8228594d1",
+      "test-objects/3d",
+      "test-objects/3d/7f8a6af076c8c3f20071a8935cdbe8228594d1",
+   };
+
+   unsigned char commit_data[] = {
+      0x74, 0x72, 0x65, 0x65, 0x20, 0x64, 0x66, 0x66,
+      0x32, 0x64, 0x61, 0x39, 0x30, 0x62, 0x32, 0x35,
+      0x34, 0x65, 0x31, 0x62, 0x65, 0x62, 0x38, 0x38,
+      0x39, 0x64, 0x31, 0x66, 0x31, 0x66, 0x31, 0x32,
+      0x38, 0x38, 0x62, 0x65, 0x31, 0x38, 0x30, 0x33,
+      0x37, 0x38, 0x32, 0x64, 0x66, 0x0a, 0x61, 0x75,
+      0x74, 0x68, 0x6f, 0x72, 0x20, 0x41, 0x20, 0x55,
+      0x20, 0x54, 0x68, 0x6f, 0x72, 0x20, 0x3c, 0x61,
+      0x75, 0x74, 0x68, 0x6f, 0x72, 0x40, 0x65, 0x78,
+      0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f,
+      0x6d, 0x3e, 0x20, 0x31, 0x32, 0x32, 0x37, 0x38,
+      0x31, 0x34, 0x32, 0x39, 0x37, 0x20, 0x2b, 0x30,
+      0x30, 0x30, 0x30, 0x0a, 0x63, 0x6f, 0x6d, 0x6d,
+      0x69, 0x74, 0x74, 0x65, 0x72, 0x20, 0x43, 0x20,
+      0x4f, 0x20, 0x4d, 0x69, 0x74, 0x74, 0x65, 0x72,
+      0x20, 0x3c, 0x63, 0x6f, 0x6d, 0x6d, 0x69, 0x74,
+      0x74, 0x65, 0x72, 0x40, 0x65, 0x78, 0x61, 0x6d,
+      0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d, 0x3e,
+      0x20, 0x31, 0x32, 0x32, 0x37, 0x38, 0x31, 0x34,
+      0x32, 0x39, 0x37, 0x20, 0x2b, 0x30, 0x30, 0x30,
+      0x30, 0x0a, 0x0a, 0x41, 0x20, 0x6f, 0x6e, 0x65,
+      0x2d, 0x6c, 0x69, 0x6e, 0x65, 0x20, 0x63, 0x6f,
+      0x6d, 0x6d, 0x69, 0x74, 0x20, 0x73, 0x75, 0x6d,
+      0x6d, 0x61, 0x72, 0x79, 0x0a, 0x0a, 0x54, 0x68,
+      0x65, 0x20, 0x62, 0x6f, 0x64, 0x79, 0x20, 0x6f,
+      0x66, 0x20, 0x74, 0x68, 0x65, 0x20, 0x63, 0x6f,
+      0x6d, 0x6d, 0x69, 0x74, 0x20, 0x6d, 0x65, 0x73,
+      0x73, 0x61, 0x67, 0x65, 0x2c, 0x20, 0x63, 0x6f,
+      0x6e, 0x74, 0x61, 0x69, 0x6e, 0x69, 0x6e, 0x67,
+      0x20, 0x66, 0x75, 0x72, 0x74, 0x68, 0x65, 0x72,
+      0x20, 0x65, 0x78, 0x70, 0x6c, 0x61, 0x6e, 0x61,
+      0x74, 0x69, 0x6f, 0x6e, 0x0a, 0x6f, 0x66, 0x20,
+      0x74, 0x68, 0x65, 0x20, 0x70, 0x75, 0x72, 0x70,
+      0x6f, 0x73, 0x65, 0x20, 0x6f, 0x66, 0x20, 0x74,
+      0x68, 0x65, 0x20, 0x63, 0x68, 0x61, 0x6e, 0x67,
+      0x65, 0x73, 0x20, 0x69, 0x6e, 0x74, 0x72, 0x6f,
+      0x64, 0x75, 0x63, 0x65, 0x64, 0x20, 0x62, 0x79,
+      0x20, 0x74, 0x68, 0x65, 0x20, 0x63, 0x6f, 0x6d,
+      0x6d, 0x69, 0x74, 0x2e, 0x0a, 0x0a, 0x53, 0x69,
+      0x67, 0x6e, 0x65, 0x64, 0x2d, 0x6f, 0x66, 0x2d,
+      0x62, 0x79, 0x3a, 0x20, 0x41, 0x20, 0x55, 0x20,
+      0x54, 0x68, 0x6f, 0x72, 0x20, 0x3c, 0x61, 0x75,
+      0x74, 0x68, 0x6f, 0x72, 0x40, 0x65, 0x78, 0x61,
+      0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d,
+      0x3e, 0x0a,
+   };
+
+   git_rawobj commit_obj = {
+      commit_data,
+      sizeof(commit_data),
+      GIT_OBJECT_COMMIT
+   };
+
+   test_body(&commit, &commit_obj);
+}
+
+void test_object_raw_write__loose_tree(void)
+{
+   static object_data tree = {
+      "dff2da90b254e1beb889d1f1f1288be1803782df",
+      "test-objects/df",
+      "test-objects/df/f2da90b254e1beb889d1f1f1288be1803782df",
+   };
+
+   static unsigned char tree_data[] = {
+      0x31, 0x30, 0x30, 0x36, 0x34, 0x34, 0x20, 0x6f,
+      0x6e, 0x65, 0x00, 0x8b, 0x13, 0x78, 0x91, 0x79,
+      0x1f, 0xe9, 0x69, 0x27, 0xad, 0x78, 0xe6, 0x4b,
+      0x0a, 0xad, 0x7b, 0xde, 0xd0, 0x8b, 0xdc, 0x31,
+      0x30, 0x30, 0x36, 0x34, 0x34, 0x20, 0x73, 0x6f,
+      0x6d, 0x65, 0x00, 0xfd, 0x84, 0x30, 0xbc, 0x86,
+      0x4c, 0xfc, 0xd5, 0xf1, 0x0e, 0x55, 0x90, 0xf8,
+      0xa4, 0x47, 0xe0, 0x1b, 0x94, 0x2b, 0xfe, 0x31,
+      0x30, 0x30, 0x36, 0x34, 0x34, 0x20, 0x74, 0x77,
+      0x6f, 0x00, 0x78, 0x98, 0x19, 0x22, 0x61, 0x3b,
+      0x2a, 0xfb, 0x60, 0x25, 0x04, 0x2f, 0xf6, 0xbd,
+      0x87, 0x8a, 0xc1, 0x99, 0x4e, 0x85, 0x31, 0x30,
+      0x30, 0x36, 0x34, 0x34, 0x20, 0x7a, 0x65, 0x72,
+      0x6f, 0x00, 0xe6, 0x9d, 0xe2, 0x9b, 0xb2, 0xd1,
+      0xd6, 0x43, 0x4b, 0x8b, 0x29, 0xae, 0x77, 0x5a,
+      0xd8, 0xc2, 0xe4, 0x8c, 0x53, 0x91,
+   };
+
+   static git_rawobj tree_obj = {
+      tree_data,
+      sizeof(tree_data),
+      GIT_OBJECT_TREE
+   };
+
+   test_body(&tree, &tree_obj);
+}
+
+void test_object_raw_write__loose_tag(void)
+{
+   static object_data tag = {
+      "09d373e1dfdc16b129ceec6dd649739911541e05",
+      "test-objects/09",
+      "test-objects/09/d373e1dfdc16b129ceec6dd649739911541e05",
+   };
+
+   static unsigned char tag_data[] = {
+      0x6f, 0x62, 0x6a, 0x65, 0x63, 0x74, 0x20, 0x33,
+      0x64, 0x37, 0x66, 0x38, 0x61, 0x36, 0x61, 0x66,
+      0x30, 0x37, 0x36, 0x63, 0x38, 0x63, 0x33, 0x66,
+      0x32, 0x30, 0x30, 0x37, 0x31, 0x61, 0x38, 0x39,
+      0x33, 0x35, 0x63, 0x64, 0x62, 0x65, 0x38, 0x32,
+      0x32, 0x38, 0x35, 0x39, 0x34, 0x64, 0x31, 0x0a,
+      0x74, 0x79, 0x70, 0x65, 0x20, 0x63, 0x6f, 0x6d,
+      0x6d, 0x69, 0x74, 0x0a, 0x74, 0x61, 0x67, 0x20,
+      0x76, 0x30, 0x2e, 0x30, 0x2e, 0x31, 0x0a, 0x74,
+      0x61, 0x67, 0x67, 0x65, 0x72, 0x20, 0x43, 0x20,
+      0x4f, 0x20, 0x4d, 0x69, 0x74, 0x74, 0x65, 0x72,
+      0x20, 0x3c, 0x63, 0x6f, 0x6d, 0x6d, 0x69, 0x74,
+      0x74, 0x65, 0x72, 0x40, 0x65, 0x78, 0x61, 0x6d,
+      0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d, 0x3e,
+      0x20, 0x31, 0x32, 0x32, 0x37, 0x38, 0x31, 0x34,
+      0x32, 0x39, 0x37, 0x20, 0x2b, 0x30, 0x30, 0x30,
+      0x30, 0x0a, 0x0a, 0x54, 0x68, 0x69, 0x73, 0x20,
+      0x69, 0x73, 0x20, 0x74, 0x68, 0x65, 0x20, 0x74,
+      0x61, 0x67, 0x20, 0x6f, 0x62, 0x6a, 0x65, 0x63,
+      0x74, 0x20, 0x66, 0x6f, 0x72, 0x20, 0x72, 0x65,
+      0x6c, 0x65, 0x61, 0x73, 0x65, 0x20, 0x76, 0x30,
+      0x2e, 0x30, 0x2e, 0x31, 0x0a,
+   };
+
+   static git_rawobj tag_obj = {
+      tag_data,
+      sizeof(tag_data),
+      GIT_OBJECT_TAG
+   };
+
+
+   test_body(&tag, &tag_obj);
+}
+
+void test_object_raw_write__zero_length(void)
+{
+   static object_data zero = {
+      "e69de29bb2d1d6434b8b29ae775ad8c2e48c5391",
+      "test-objects/e6",
+      "test-objects/e6/9de29bb2d1d6434b8b29ae775ad8c2e48c5391",
+   };
+
+   static unsigned char zero_data[] = {
+      0x00  /* dummy data */
+   };
+
+   static git_rawobj zero_obj = {
+      zero_data,
+      0,
+      GIT_OBJECT_BLOB
+   };
+
+   test_body(&zero, &zero_obj);
+}
+
+void test_object_raw_write__one_byte(void)
+{
+   static object_data one = {
+      "8b137891791fe96927ad78e64b0aad7bded08bdc",
+      "test-objects/8b",
+      "test-objects/8b/137891791fe96927ad78e64b0aad7bded08bdc",
+   };
+
+   static unsigned char one_data[] = {
+      0x0a,
+   };
+
+   static git_rawobj one_obj = {
+      one_data,
+      sizeof(one_data),
+      GIT_OBJECT_BLOB
+   };
+
+   test_body(&one, &one_obj);
+}
+
+void test_object_raw_write__two_byte(void)
+{
+   static object_data two = {
+      "78981922613b2afb6025042ff6bd878ac1994e85",
+      "test-objects/78",
+      "test-objects/78/981922613b2afb6025042ff6bd878ac1994e85",
+   };
+
+   static unsigned char two_data[] = {
+      0x61, 0x0a,
+   };
+
+   static git_rawobj two_obj = {
+      two_data,
+      sizeof(two_data),
+      GIT_OBJECT_BLOB
+   };
+
+   test_body(&two, &two_obj);
+}
+
+void test_object_raw_write__several_bytes(void)
+{
+   static object_data some = {
+      "fd8430bc864cfcd5f10e5590f8a447e01b942bfe",
+      "test-objects/fd",
+      "test-objects/fd/8430bc864cfcd5f10e5590f8a447e01b942bfe",
+   };
+
+   static unsigned char some_data[] = {
+      0x2f, 0x2a, 0x0a, 0x20, 0x2a, 0x20, 0x54, 0x68,
+      0x69, 0x73, 0x20, 0x66, 0x69, 0x6c, 0x65, 0x20,
+      0x69, 0x73, 0x20, 0x66, 0x72, 0x65, 0x65, 0x20,
+      0x73, 0x6f, 0x66, 0x74, 0x77, 0x61, 0x72, 0x65,
+      0x3b, 0x20, 0x79, 0x6f, 0x75, 0x20, 0x63, 0x61,
+      0x6e, 0x20, 0x72, 0x65, 0x64, 0x69, 0x73, 0x74,
+      0x72, 0x69, 0x62, 0x75, 0x74, 0x65, 0x20, 0x69,
+      0x74, 0x20, 0x61, 0x6e, 0x64, 0x2f, 0x6f, 0x72,
+      0x20, 0x6d, 0x6f, 0x64, 0x69, 0x66, 0x79, 0x0a,
+      0x20, 0x2a, 0x20, 0x69, 0x74, 0x20, 0x75, 0x6e,
+      0x64, 0x65, 0x72, 0x20, 0x74, 0x68, 0x65, 0x20,
+      0x74, 0x65, 0x72, 0x6d, 0x73, 0x20, 0x6f, 0x66,
+      0x20, 0x74, 0x68, 0x65, 0x20, 0x47, 0x4e, 0x55,
+      0x20, 0x47, 0x65, 0x6e, 0x65, 0x72, 0x61, 0x6c,
+      0x20, 0x50, 0x75, 0x62, 0x6c, 0x69, 0x63, 0x20,
+      0x4c, 0x69, 0x63, 0x65, 0x6e, 0x73, 0x65, 0x2c,
+      0x20, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e,
+      0x20, 0x32, 0x2c, 0x0a, 0x20, 0x2a, 0x20, 0x61,
+      0x73, 0x20, 0x70, 0x75, 0x62, 0x6c, 0x69, 0x73,
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+      0x74, 0x68, 0x65, 0x20, 0x66, 0x69, 0x6c, 0x65,
+      0x20, 0x43, 0x4f, 0x50, 0x59, 0x49, 0x4e, 0x47,
+      0x2e, 0x20, 0x20, 0x49, 0x66, 0x20, 0x6e, 0x6f,
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+      0x68, 0x65, 0x20, 0x46, 0x72, 0x65, 0x65, 0x20,
+      0x53, 0x6f, 0x66, 0x74, 0x77, 0x61, 0x72, 0x65,
+      0x20, 0x46, 0x6f, 0x75, 0x6e, 0x64, 0x61, 0x74,
+      0x69, 0x6f, 0x6e, 0x2c, 0x20, 0x35, 0x31, 0x20,
+      0x46, 0x72, 0x61, 0x6e, 0x6b, 0x6c, 0x69, 0x6e,
+      0x20, 0x53, 0x74, 0x72, 0x65, 0x65, 0x74, 0x2c,
+      0x20, 0x46, 0x69, 0x66, 0x74, 0x68, 0x20, 0x46,
+      0x6c, 0x6f, 0x6f, 0x72, 0x2c, 0x0a, 0x20, 0x2a,
+      0x20, 0x42, 0x6f, 0x73, 0x74, 0x6f, 0x6e, 0x2c,
+      0x20, 0x4d, 0x41, 0x20, 0x30, 0x32, 0x31, 0x31,
+      0x30, 0x2d, 0x31, 0x33, 0x30, 0x31, 0x2c, 0x20,
+      0x55, 0x53, 0x41, 0x2e, 0x0a, 0x20, 0x2a, 0x2f,
+      0x0a,
+   };
+
+   static git_rawobj some_obj = {
+      some_data,
+      sizeof(some_data),
+      GIT_OBJECT_BLOB
+   };
+
+   test_body(&some, &some_obj);
+}
diff --git a/tests/libgit2/object/shortid.c b/tests/libgit2/object/shortid.c
new file mode 100644
index 000000000..9b673efeb
--- /dev/null
+++ b/tests/libgit2/object/shortid.c
@@ -0,0 +1,51 @@
+#include "clar_libgit2.h"
+
+git_repository *_repo;
+
+void test_object_shortid__initialize(void)
+{
+	cl_git_pass(git_repository_open(&_repo, cl_fixture("duplicate.git")));
+}
+
+void test_object_shortid__cleanup(void)
+{
+	git_repository_free(_repo);
+	_repo = NULL;
+}
+
+void test_object_shortid__select(void)
+{
+	git_oid full;
+	git_object *obj;
+	git_buf shorty = {0};
+
+	git_oid_fromstr(&full, "ce013625030ba8dba906f756967f9e9ca394464a");
+	cl_git_pass(git_object_lookup(&obj, _repo, &full, GIT_OBJECT_ANY));
+	cl_git_pass(git_object_short_id(&shorty, obj));
+	cl_assert_equal_i(7, shorty.size);
+	cl_assert_equal_s("ce01362", shorty.ptr);
+	git_object_free(obj);
+
+	git_oid_fromstr(&full, "038d718da6a1ebbc6a7780a96ed75a70cc2ad6e2");
+	cl_git_pass(git_object_lookup(&obj, _repo, &full, GIT_OBJECT_ANY));
+	cl_git_pass(git_object_short_id(&shorty, obj));
+	cl_assert_equal_i(7, shorty.size);
+	cl_assert_equal_s("038d718", shorty.ptr);
+	git_object_free(obj);
+
+	git_oid_fromstr(&full, "dea509d097ce692e167dfc6a48a7a280cc5e877e");
+	cl_git_pass(git_object_lookup(&obj, _repo, &full, GIT_OBJECT_ANY));
+	cl_git_pass(git_object_short_id(&shorty, obj));
+	cl_assert_equal_i(9, shorty.size);
+	cl_assert_equal_s("dea509d09", shorty.ptr);
+	git_object_free(obj);
+
+	git_oid_fromstr(&full, "dea509d0b3cb8ee0650f6ca210bc83f4678851ba");
+	cl_git_pass(git_object_lookup(&obj, _repo, &full, GIT_OBJECT_ANY));
+	cl_git_pass(git_object_short_id(&shorty, obj));
+	cl_assert_equal_i(9, shorty.size);
+	cl_assert_equal_s("dea509d0b", shorty.ptr);
+	git_object_free(obj);
+
+	git_buf_dispose(&shorty);
+}
diff --git a/tests/libgit2/object/tag/list.c b/tests/libgit2/object/tag/list.c
new file mode 100644
index 000000000..d15f09205
--- /dev/null
+++ b/tests/libgit2/object/tag/list.c
@@ -0,0 +1,117 @@
+#include "clar_libgit2.h"
+
+#include "tag.h"
+
+static git_repository *g_repo;
+
+#define MAX_USED_TAGS 6
+
+struct pattern_match_t
+{
+	const char* pattern;
+	const size_t expected_matches;
+	const char* expected_results[MAX_USED_TAGS];
+};
+
+/* Helpers */
+static void ensure_tag_pattern_match(git_repository *repo,
+									 const struct pattern_match_t* data)
+{
+	int already_found[MAX_USED_TAGS] = { 0 };
+	git_strarray tag_list;
+	int error = 0;
+	size_t successfully_found = 0;
+	size_t i, j;
+
+	cl_assert(data->expected_matches <= MAX_USED_TAGS);
+
+	if ((error = git_tag_list_match(&tag_list, data->pattern, repo)) < 0)
+		goto exit;
+
+	if (tag_list.count != data->expected_matches)
+	{
+		error = GIT_ERROR;
+		goto exit;
+	}
+
+	/* we have to be prepared that tags come in any order. */
+	for (i = 0; i < tag_list.count; i++)
+	{
+		for (j = 0; j < data->expected_matches; j++)
+		{
+			if (!already_found[j] && !strcmp(data->expected_results[j], tag_list.strings[i]))
+			{
+				already_found[j] = 1;
+				successfully_found++;
+				break;
+			}
+		}
+	}
+	cl_assert_equal_i((int)successfully_found, (int)data->expected_matches);
+
+exit:
+	git_strarray_dispose(&tag_list);
+	cl_git_pass(error);
+}
+
+/* Fixture setup and teardown */
+void test_object_tag_list__initialize(void)
+{
+	g_repo = cl_git_sandbox_init("testrepo");
+}
+
+void test_object_tag_list__cleanup(void)
+{
+	cl_git_sandbox_cleanup();
+}
+
+void test_object_tag_list__list_all(void)
+{
+	/* list all tag names from the repository */
+	git_strarray tag_list;
+
+	cl_git_pass(git_tag_list(&tag_list, g_repo));
+
+	cl_assert_equal_i((int)tag_list.count, 6);
+
+	git_strarray_dispose(&tag_list);
+}
+
+static const struct pattern_match_t matches[] = {
+	/* All tags, including a packed one and two namespaced ones. */
+	{ "", 6, { "e90810b", "point_to_blob", "test", "packed-tag", "foo/bar", "foo/foo/bar" } },
+
+	/* beginning with */
+	{ "t*", 1, { "test" } },
+
+	/* ending with */
+	{ "*b", 2, { "e90810b", "point_to_blob" } },
+
+	/* exact match */
+	{ "e", 0 },
+	{ "e90810b", 1, { "e90810b" } },
+
+	/* either or */
+	{ "e90810[ab]", 1, { "e90810b" } },
+
+	/* glob in the middle */
+	{ "foo/*/bar", 1, { "foo/foo/bar" } },
+
+	/*
+	 * The matching of '*' is based on plain string matching analog to the regular expression ".*"
+	 * => a '/' in the tag name has no special meaning.
+	 * Compare to `git tag -l "*bar"`
+	 */
+	{ "*bar", 2, { "foo/bar", "foo/foo/bar" } },
+
+	/* End of list */
+	{ NULL }
+};
+
+void test_object_tag_list__list_by_pattern(void)
+{
+	/* list all tag names from the repository matching a specified pattern */
+	size_t i = 0;
+	while (matches[i].pattern)
+		ensure_tag_pattern_match(g_repo, &matches[i++]);
+}
diff --git a/tests/libgit2/object/tag/parse.c b/tests/libgit2/object/tag/parse.c
new file mode 100644
index 000000000..2c0635ae4
--- /dev/null
+++ b/tests/libgit2/object/tag/parse.c
@@ -0,0 +1,218 @@
+#include "clar_libgit2.h"
+#include "object.h"
+#include "signature.h"
+#include "tag.h"
+
+static void assert_tag_parses(const char *data, size_t datalen,
+	const char *expected_oid,
+	const char *expected_name,
+	const char *expected_tagger,
+	const char *expected_message)
+{
+	git_tag *tag;
+
+	if (!datalen)
+		datalen = strlen(data);
+
+	cl_git_pass(git_object__from_raw((git_object **) &tag, data, datalen, GIT_OBJECT_TAG));
+	cl_assert_equal_i(tag->type, GIT_OBJECT_TAG);
+
+	if (expected_oid) {
+		git_oid oid;
+		cl_git_pass(git_oid_fromstr(&oid, expected_oid));
+		cl_assert_equal_oid(&oid, &tag->target);
+	}
+
+	if (expected_name)
+		cl_assert_equal_s(expected_name, tag->tag_name);
+	else
+		cl_assert_equal_s(tag->message, NULL);
+
+	if (expected_tagger) {
+		git_signature *tagger;
+		cl_git_pass(git_signature_from_buffer(&tagger, expected_tagger));
+		cl_assert_equal_s(tagger->name, tag->tagger->name);
+		cl_assert_equal_s(tagger->email, tag->tagger->email);
+		cl_assert_equal_i(tagger->when.time, tag->tagger->when.time);
+		cl_assert_equal_i(tagger->when.offset, tag->tagger->when.offset);
+		cl_assert_equal_i(tagger->when.sign, tag->tagger->when.sign);
+		git_signature_free(tagger);
+	} else {
+		cl_assert_equal_s(tag->tagger, NULL);
+	}
+
+	if (expected_message)
+		cl_assert_equal_s(expected_message, tag->message);
+	else
+		cl_assert_equal_s(tag->message, NULL);
+
+	git_object__free(&tag->object);
+}
+
+static void assert_tag_fails(const char *data, size_t datalen)
+{
+	git_object *object;
+	if (!datalen)
+		datalen = strlen(data);
+	cl_git_fail(git_object__from_raw(&object, data, datalen, GIT_OBJECT_TAG));
+}
+
+void test_object_tag_parse__valid_tag_parses(void)
+{
+	const char *tag =
+		"object a8d447f68076d1520f69649bb52629941be7031f\n"
+		"type tag\n"
+		"tag tagname\n"
+		"tagger Taggy Mr. Taggart <taggy@taggart.com>\n"
+		"\n"
+		"Message";
+	assert_tag_parses(tag, 0,
+		"a8d447f68076d1520f69649bb52629941be7031f",
+		"tagname",
+		"Taggy Mr. Taggart <taggy@taggart.com>",
+		"Message");
+}
+
+void test_object_tag_parse__missing_tagger_parses(void)
+{
+	const char *tag =
+		"object a8d447f68076d1520f69649bb52629941be7031f\n"
+		"type tag\n"
+		"tag tagname\n"
+		"\n"
+		"Message";
+	assert_tag_parses(tag, 0,
+		"a8d447f68076d1520f69649bb52629941be7031f",
+		"tagname",
+		NULL,
+		"Message");
+}
+
+void test_object_tag_parse__missing_message_parses(void)
+{
+	const char *tag =
+		"object a8d447f68076d1520f69649bb52629941be7031f\n"
+		"type tag\n"
+		"tag tagname\n"
+		"tagger Taggy Mr. Taggart <taggy@taggart.com>\n";
+	assert_tag_parses(tag, 0,
+		"a8d447f68076d1520f69649bb52629941be7031f",
+		"tagname",
+		"Taggy Mr. Taggart <taggy@taggart.com>",
+		NULL);
+}
+
+void test_object_tag_parse__unknown_field_parses(void)
+{
+	const char *tag =
+		"object a8d447f68076d1520f69649bb52629941be7031f\n"
+		"type tag\n"
+		"tag tagname\n"
+		"tagger Taggy Mr. Taggart <taggy@taggart.com>\n"
+		"foo bar\n"
+		"frubble frabble\n"
+		"\n"
+		"Message";
+	assert_tag_parses(tag, 0,
+		"a8d447f68076d1520f69649bb52629941be7031f",
+		"tagname",
+		"Taggy Mr. Taggart <taggy@taggart.com>",
+		"Message");
+}
+
+void test_object_tag_parse__missing_object_fails(void)
+{
+	const char *tag =
+		"type tag\n"
+		"tag tagname\n"
+		"tagger Taggy Mr. Taggart <taggy@taggart.com>\n"
+		"\n"
+		"Message";
+	assert_tag_fails(tag, 0);
+}
+
+void test_object_tag_parse__malformatted_object_fails(void)
+{
+	const char *tag =
+		"object a8d447f68076d15xxxxxxxxxxxxxxxx41be7031f\n"
+		"type tag\n"
+		"tag tagname\n"
+		"tagger Taggy Mr. Taggart <taggy@taggart.com>\n"
+		"\n"
+		"Message";
+	assert_tag_fails(tag, 0);
+}
+
+void test_object_tag_parse__missing_type_fails(void)
+{
+	const char *tag =
+		"object a8d447f68076d1520f69649bb52629941be7031f\n"
+		"tag tagname\n"
+		"tagger Taggy Mr. Taggart <taggy@taggart.com>\n"
+		"\n"
+		"Message";
+	assert_tag_fails(tag, 0);
+}
+
+void test_object_tag_parse__invalid_type_fails(void)
+{
+	const char *tag =
+		"object a8d447f68076d1520f69649bb52629941be7031f\n"
+		"type garbage\n"
+		"tag tagname\n"
+		"tagger Taggy Mr. Taggart <taggy@taggart.com>\n"
+		"\n"
+		"Message";
+	assert_tag_fails(tag, 0);
+}
+
+void test_object_tag_parse__missing_tagname_fails(void)
+{
+	const char *tag =
+		"object a8d447f68076d1520f69649bb52629941be7031f\n"
+		"type tag\n"
+		"tagger Taggy Mr. Taggart <taggy@taggart.com>\n"
+		"\n"
+		"Message";
+	assert_tag_fails(tag, 0);
+}
+
+void test_object_tag_parse__misformatted_tagger_fails(void)
+{
+	const char *tag =
+		"object a8d447f68076d1520f69649bb52629941be7031f\n"
+		"type tag\n"
+		"tag Tag\n"
+		"tagger taggy@taggart.com>\n"
+		"\n"
+		"Message";
+	assert_tag_fails(tag, 0);
+}
+
+void test_object_tag_parse__missing_message_fails(void)
+{
+	const char *tag =
+		"object a8d447f68076d1520f69649bb52629941be7031f\n"
+		"type tag\n"
+		"tag Tag\n"
+		"tagger taggy@taggart.com>\n";
+	assert_tag_fails(tag, 0);
+}
+
+void test_object_tag_parse__no_oob_read_when_searching_message(void)
+{
+	const char *tag =
+		"object a8d447f68076d1520f69649bb52629941be7031f\n"
+		"type tag\n"
+		"tag \n"
+		"tagger <>\n"
+		" \n\n"
+		"Message";
+	/*
+	 * The OOB read previously resulted in an OOM error. We
+	 * thus want to make sure that the resulting error is the
+	 * expected one.
+	 */
+	assert_tag_fails(tag, strlen(tag) - strlen("\n\nMessage"));
+	cl_assert(strstr(git_error_last()->message, "tag contains no message"));
+}
diff --git a/tests/libgit2/object/tag/peel.c b/tests/libgit2/object/tag/peel.c
new file mode 100644
index 000000000..7456a8e17
--- /dev/null
+++ b/tests/libgit2/object/tag/peel.c
@@ -0,0 +1,61 @@
+#include "clar_libgit2.h"
+#include "tag.h"
+
+static git_repository *repo;
+static git_tag *tag;
+static git_object *target;
+
+void test_object_tag_peel__initialize(void)
+{
+	cl_fixture_sandbox("testrepo.git");
+	cl_git_pass(git_repository_open(&repo, "testrepo.git"));
+}
+
+void test_object_tag_peel__cleanup(void)
+{
+	git_tag_free(tag);
+	tag = NULL;
+
+	git_object_free(target);
+	target = NULL;
+
+	git_repository_free(repo);
+	repo = NULL;
+
+	cl_fixture_cleanup("testrepo.git");
+}
+
+static void retrieve_tag_from_oid(git_tag **tag_out, git_repository *repo, const char *sha)
+{
+	git_oid oid;
+
+	cl_git_pass(git_oid_fromstr(&oid, sha));
+	cl_git_pass(git_tag_lookup(tag_out, repo, &oid));
+}
+
+void test_object_tag_peel__can_peel_to_a_commit(void)
+{
+	retrieve_tag_from_oid(&tag, repo, "7b4384978d2493e851f9cca7858815fac9b10980");
+
+	cl_git_pass(git_tag_peel(&target, tag));
+	cl_assert(git_object_type(target) == GIT_OBJECT_COMMIT);
+	cl_git_pass(git_oid_streq(git_object_id(target), "e90810b8df3e80c413d903f631643c716887138d"));
+}
+
+void test_object_tag_peel__can_peel_several_nested_tags_to_a_commit(void)
+{
+	retrieve_tag_from_oid(&tag, repo, "b25fa35b38051e4ae45d4222e795f9df2e43f1d1");
+
+	cl_git_pass(git_tag_peel(&target, tag));
+	cl_assert(git_object_type(target) == GIT_OBJECT_COMMIT);
+	cl_git_pass(git_oid_streq(git_object_id(target), "e90810b8df3e80c413d903f631643c716887138d"));
+}
+
+void test_object_tag_peel__can_peel_to_a_non_commit(void)
+{
+	retrieve_tag_from_oid(&tag, repo, "521d87c1ec3aef9824daf6d96cc0ae3710766d91");
+
+	cl_git_pass(git_tag_peel(&target, tag));
+	cl_assert(git_object_type(target) == GIT_OBJECT_BLOB);
+	cl_git_pass(git_oid_streq(git_object_id(target), "1385f264afb75a56a5bec74243be9b367ba4ca08"));
+}
diff --git a/tests/libgit2/object/tag/read.c b/tests/libgit2/object/tag/read.c
new file mode 100644
index 000000000..90ba58029
--- /dev/null
+++ b/tests/libgit2/object/tag/read.c
@@ -0,0 +1,179 @@
+#include "clar_libgit2.h"
+
+#include "tag.h"
+
+static const char *tag1_id = "b25fa35b38051e4ae45d4222e795f9df2e43f1d1";
+static const char *tag2_id = "7b4384978d2493e851f9cca7858815fac9b10980";
+static const char *tagged_commit = "e90810b8df3e80c413d903f631643c716887138d";
+static const char *bad_tag_id = "eda9f45a2a98d4c17a09d681d88569fa4ea91755";
+static const char *badly_tagged_commit = "e90810b8df3e80c413d903f631643c716887138d";
+static const char *short_tag_id = "5da7760512a953e3c7c4e47e4392c7a4338fb729";
+static const char *short_tagged_commit = "4a5ed60bafcf4638b7c8356bd4ce1916bfede93c";
+static const char *taggerless = "4a23e2e65ad4e31c4c9db7dc746650bfad082679";
+
+static git_repository *g_repo;
+
+/* Fixture setup and teardown */
+void test_object_tag_read__initialize(void)
+{
+	g_repo = cl_git_sandbox_init("testrepo");
+}
+
+void test_object_tag_read__cleanup(void)
+{
+	cl_git_sandbox_cleanup();
+}
+
+
+void test_object_tag_read__parse(void)
+{
+	/* read and parse a tag from the repository */
+	git_tag *tag1, *tag2;
+	git_commit *commit;
+	git_oid id1, id2, id_commit;
+
+	git_oid_fromstr(&id1, tag1_id);
+	git_oid_fromstr(&id2, tag2_id);
+	git_oid_fromstr(&id_commit, tagged_commit);
+
+	cl_git_pass(git_tag_lookup(&tag1, g_repo, &id1));
+
+	cl_assert_equal_s(git_tag_name(tag1), "test");
+	cl_assert(git_tag_target_type(tag1) == GIT_OBJECT_TAG);
+
+	cl_git_pass(git_tag_target((git_object **)&tag2, tag1));
+	cl_assert(tag2 != NULL);
+
+	cl_assert(git_oid_cmp(&id2, git_tag_id(tag2)) == 0);
+
+	cl_git_pass(git_tag_target((git_object **)&commit, tag2));
+	cl_assert(commit != NULL);
+
+	cl_assert(git_oid_cmp(&id_commit, git_commit_id(commit)) == 0);
+
+	git_tag_free(tag1);
+	git_tag_free(tag2);
+	git_commit_free(commit);
+}
+
+void test_object_tag_read__parse_without_tagger(void)
+{
+	/* read and parse a tag without a tagger field */
+	git_repository *bad_tag_repo;
+	git_tag *bad_tag;
+	git_commit *commit;
+	git_oid id, id_commit;
+
+	/* TODO: This is a little messy */
+	cl_git_pass(git_repository_open(&bad_tag_repo, cl_fixture("bad_tag.git")));
+
+	git_oid_fromstr(&id, bad_tag_id);
+	git_oid_fromstr(&id_commit, badly_tagged_commit);
+
+	cl_git_pass(git_tag_lookup(&bad_tag, bad_tag_repo, &id));
+	cl_assert(bad_tag != NULL);
+
+	cl_assert_equal_s(git_tag_name(bad_tag), "e90810b");
+	cl_assert(git_oid_cmp(&id, git_tag_id(bad_tag)) == 0);
+	cl_assert(bad_tag->tagger == NULL);
+
+	cl_git_pass(git_tag_target((git_object **)&commit, bad_tag));
+	cl_assert(commit != NULL);
+
+	cl_assert(git_oid_cmp(&id_commit, git_commit_id(commit)) == 0);
+
+
+	git_tag_free(bad_tag);
+	git_commit_free(commit);
+	git_repository_free(bad_tag_repo);
+}
+
+void test_object_tag_read__parse_without_message(void)
+{
+	/* read and parse a tag without a message field */
+	git_repository *short_tag_repo;
+	git_tag *short_tag;
+	git_commit *commit;
+	git_oid id, id_commit;
+
+	/* TODO: This is a little messy */
+	cl_git_pass(git_repository_open(&short_tag_repo, cl_fixture("short_tag.git")));
+
+	git_oid_fromstr(&id, short_tag_id);
+	git_oid_fromstr(&id_commit, short_tagged_commit);
+
+	cl_git_pass(git_tag_lookup(&short_tag, short_tag_repo, &id));
+	cl_assert(short_tag != NULL);
+
+	cl_assert_equal_s(git_tag_name(short_tag), "no_description");
+	cl_assert(git_oid_cmp(&id, git_tag_id(short_tag)) == 0);
+	cl_assert(short_tag->message == NULL);
+
+	cl_git_pass(git_tag_target((git_object **)&commit, short_tag));
+	cl_assert(commit != NULL);
+
+	cl_assert(git_oid_cmp(&id_commit, git_commit_id(commit)) == 0);
+
+	git_tag_free(short_tag);
+	git_commit_free(commit);
+	git_repository_free(short_tag_repo);
+}
+
+void test_object_tag_read__without_tagger_nor_message(void)
+{
+	git_tag *tag;
+	git_oid id;
+	git_repository *repo;
+
+	cl_git_pass(git_repository_open(&repo, cl_fixture("testrepo.git")));
+
+	cl_git_pass(git_oid_fromstr(&id, taggerless));
+
+	cl_git_pass(git_tag_lookup(&tag, repo, &id));
+
+	cl_assert_equal_s(git_tag_name(tag), "taggerless");
+	cl_assert(git_tag_target_type(tag) == GIT_OBJECT_COMMIT);
+
+	cl_assert(tag->message == NULL);
+	cl_assert(tag->tagger == NULL);
+
+	git_tag_free(tag);
+	git_repository_free(repo);
+}
+
+static const char *silly_tag = "object c054ccaefbf2da31c3b19178f9e3ef20a3867924\n\
+type commit\n\
+tag v1_0_1\n\
+tagger Jamis Buck <jamis@37signals.com> 1107717917\n\
+diff --git a/lib/sqlite3/version.rb b/lib/sqlite3/version.rb\n\
+index 0b3bf69..4ee8fc2 100644\n\
+--- a/lib/sqlite3/version.rb\n\
++++ b/lib/sqlite3/version.rb\n\
+@@ -36,7 +36,7 @@ module SQLite3\n\
+ \n\
+     MAJOR = 1\n\
+     MINOR = 0\n\
+-    TINY  = 0\n\
++    TINY  = 1\n\
+ \n\
+     STRING = [ MAJOR, MINOR, TINY ].join( \".\" )\n\
+ \n\
+ -0600\n\
+\n\
+v1_0_1 release\n";
+
+void test_object_tag_read__extra_header_fields(void)
+{
+	git_tag *tag;
+	git_odb *odb;
+	git_oid id;
+
+	cl_git_pass(git_repository_odb__weakptr(&odb, g_repo));
+
+	cl_git_pass(git_odb_write(&id, odb, silly_tag, strlen(silly_tag), GIT_OBJECT_TAG));
+	cl_git_pass(git_tag_lookup(&tag, g_repo, &id));
+
+	cl_assert_equal_s("v1_0_1 release\n", git_tag_message(tag));
+
+	git_tag_free(tag);
+}
diff --git a/tests/libgit2/object/tag/write.c b/tests/libgit2/object/tag/write.c
new file mode 100644
index 000000000..3c1a98956
--- /dev/null
+++ b/tests/libgit2/object/tag/write.c
@@ -0,0 +1,260 @@
+#include "clar_libgit2.h"
+
+static const char* tagger_name = "Vicent Marti";
+static const char* tagger_email = "vicent@github.com";
+static const char* tagger_message = "This is my tag.\n\nThere are many tags, but this one is mine\n";
+
+static const char *tag2_id = "7b4384978d2493e851f9cca7858815fac9b10980";
+static const char *tagged_commit = "e90810b8df3e80c413d903f631643c716887138d";
+
+static git_repository *g_repo;
+
+/* Fixture setup and teardown */
+void test_object_tag_write__initialize(void)
+{
+   g_repo = cl_git_sandbox_init("testrepo");
+}
+
+void test_object_tag_write__cleanup(void)
+{
+   cl_git_sandbox_cleanup();
+}
+
+void test_object_tag_write__basic(void)
+{
+	/* write a tag to the repository and read it again */
+	git_tag *tag;
+	git_oid target_id, tag_id;
+	git_signature *tagger;
+	const git_signature *tagger1;
+	git_reference *ref_tag;
+	git_object *target;
+
+	git_oid_fromstr(&target_id, tagged_commit);
+	cl_git_pass(git_object_lookup(&target, g_repo, &target_id, GIT_OBJECT_COMMIT));
+
+	/* create signature */
+	cl_git_pass(git_signature_new(&tagger, tagger_name, tagger_email, 123456789, 60));
+
+	cl_git_pass(
+		git_tag_create(&tag_id, g_repo,
+		  "the-tag", target, tagger, tagger_message, 0)
+	);
+
+	git_object_free(target);
+	git_signature_free(tagger);
+
+	cl_git_pass(git_tag_lookup(&tag, g_repo, &tag_id));
+	cl_assert(git_oid_cmp(git_tag_target_id(tag), &target_id) == 0);
+
+	/* Check attributes were set correctly */
+	tagger1 = git_tag_tagger(tag);
+	cl_assert(tagger1 != NULL);
+	cl_assert_equal_s(tagger1->name, tagger_name);
+	cl_assert_equal_s(tagger1->email, tagger_email);
+	cl_assert(tagger1->when.time == 123456789);
+	cl_assert(tagger1->when.offset == 60);
+
+	cl_assert_equal_s(git_tag_message(tag), tagger_message);
+
+	cl_git_pass(git_reference_lookup(&ref_tag, g_repo, "refs/tags/the-tag"));
+	cl_assert(git_oid_cmp(git_reference_target(ref_tag), &tag_id) == 0);
+	cl_git_pass(git_reference_delete(ref_tag));
+	git_reference_free(ref_tag);
+
+	git_tag_free(tag);
+}
+
+void test_object_tag_write__overwrite(void)
+{
+	/* Attempt to write a tag bearing the same name than an already existing tag */
+	git_oid target_id, tag_id;
+	git_signature *tagger;
+	git_object *target;
+
+	git_oid_fromstr(&target_id, tagged_commit);
+	cl_git_pass(git_object_lookup(&target, g_repo, &target_id, GIT_OBJECT_COMMIT));
+
+	/* create signature */
+	cl_git_pass(git_signature_new(&tagger, tagger_name, tagger_email, 123456789, 60));
+
+	cl_assert_equal_i(GIT_EEXISTS, git_tag_create(
+                              &tag_id, /* out id */
+                              g_repo,
+                              "e90810b",
+                              target,
+                              tagger,
+                              tagger_message,
+                              0));
+
+	git_object_free(target);
+	git_signature_free(tagger);
+}
+
+void test_object_tag_write__replace(void)
+{
+	/* Replace an already existing tag */
+	git_oid target_id, tag_id, old_tag_id;
+	git_signature *tagger;
+	git_reference *ref_tag;
+	git_object *target;
+
+	git_oid_fromstr(&target_id, tagged_commit);
+	cl_git_pass(git_object_lookup(&target, g_repo, &target_id, GIT_OBJECT_COMMIT));
+
+	cl_git_pass(git_reference_lookup(&ref_tag, g_repo, "refs/tags/e90810b"));
+	git_oid_cpy(&old_tag_id, git_reference_target(ref_tag));
+	git_reference_free(ref_tag);
+
+	/* create signature */
+	cl_git_pass(git_signature_new(&tagger, tagger_name, tagger_email, 123456789, 60));
+
+	cl_git_pass(git_tag_create(
+                              &tag_id, /* out id */
+                              g_repo,
+                              "e90810b",
+                              target,
+                              tagger,
+                              tagger_message,
+                              1));
+
+	git_object_free(target);
+	git_signature_free(tagger);
+
+	cl_git_pass(git_reference_lookup(&ref_tag, g_repo, "refs/tags/e90810b"));
+	cl_assert(git_oid_cmp(git_reference_target(ref_tag), &tag_id) == 0);
+	cl_assert(git_oid_cmp(git_reference_target(ref_tag), &old_tag_id) != 0);
+
+	git_reference_free(ref_tag);
+}
+
+void test_object_tag_write__lightweight(void)
+{
+	/* write a lightweight tag to the repository and read it again */
+	git_oid target_id, object_id;
+	git_reference *ref_tag;
+	git_object *target;
+
+	git_oid_fromstr(&target_id, tagged_commit);
+	cl_git_pass(git_object_lookup(&target, g_repo, &target_id, GIT_OBJECT_COMMIT));
+
+	cl_git_pass(git_tag_create_lightweight(
+                                          &object_id,
+                                          g_repo,
+                                          "light-tag",
+                                          target,
+                                          0));
+
+	git_object_free(target);
+
+	cl_assert(git_oid_cmp(&object_id, &target_id) == 0);
+
+	cl_git_pass(git_reference_lookup(&ref_tag, g_repo, "refs/tags/light-tag"));
+	cl_assert(git_oid_cmp(git_reference_target(ref_tag), &target_id) == 0);
+
+	cl_git_pass(git_tag_delete(g_repo, "light-tag"));
+
+	git_reference_free(ref_tag);
+}
+
+void test_object_tag_write__lightweight_over_existing(void)
+{
+	/* Attempt to write a lightweight tag bearing the same name than an already existing tag */
+	git_oid target_id, object_id, existing_object_id;
+	git_object *target;
+
+	git_oid_fromstr(&target_id, tagged_commit);
+	cl_git_pass(git_object_lookup(&target, g_repo, &target_id, GIT_OBJECT_COMMIT));
+
+	cl_assert_equal_i(GIT_EEXISTS, git_tag_create_lightweight(
+                                          &object_id,
+                                          g_repo,
+                                          "e90810b",
+                                          target,
+                                          0));
+
+	git_oid_fromstr(&existing_object_id, tag2_id);
+	cl_assert(git_oid_cmp(&object_id, &existing_object_id) == 0);
+
+	git_object_free(target);
+}
+
+void test_object_tag_write__delete(void)
+{
+	/* Delete an already existing tag */
+	git_reference *ref_tag;
+
+	cl_git_pass(git_tag_delete(g_repo, "e90810b"));
+
+	cl_git_fail(git_reference_lookup(&ref_tag, g_repo, "refs/tags/e90810b"));
+
+	git_reference_free(ref_tag);
+}
+
+void test_object_tag_write__creating_with_an_invalid_name_returns_EINVALIDSPEC(void)
+{
+	git_oid target_id, tag_id;
+	git_signature *tagger;
+	git_object *target;
+
+	git_oid_fromstr(&target_id, tagged_commit);
+	cl_git_pass(git_object_lookup(&target, g_repo, &target_id, GIT_OBJECT_COMMIT));
+
+	cl_git_pass(git_signature_new(&tagger, tagger_name, tagger_email, 123456789, 60));
+
+	cl_assert_equal_i(GIT_EINVALIDSPEC,
+		git_tag_create(&tag_id, g_repo,
+		  "Inv@{id", target, tagger, tagger_message, 0)
+	);
+
+	cl_assert_equal_i(GIT_EINVALIDSPEC,
+		git_tag_create_lightweight(&tag_id, g_repo,
+		  "Inv@{id", target, 0)
+	);
+
+	git_object_free(target);
+	git_signature_free(tagger);
+}
+
+void test_object_tag_write__deleting_with_an_invalid_name_returns_EINVALIDSPEC(void)
+{
+	cl_assert_equal_i(GIT_EINVALIDSPEC, git_tag_delete(g_repo, "Inv@{id"));
+}
+
+static void create_annotation(git_oid *tag_id, const char *name)
+{
+	git_object *target;
+	git_oid target_id;
+	git_signature *tagger;
+
+	cl_git_pass(git_signature_new(&tagger, tagger_name, tagger_email, 123456789, 60));
+
+	git_oid_fromstr(&target_id, tagged_commit);
+	cl_git_pass(git_object_lookup(&target, g_repo, &target_id, GIT_OBJECT_COMMIT));
+
+	cl_git_pass(git_tag_annotation_create(tag_id, g_repo, name, target, tagger, "boom!"));
+	git_object_free(target);
+	git_signature_free(tagger);
+}
+
+void test_object_tag_write__creating_an_annotation_stores_the_new_object_in_the_odb(void)
+{
+	git_oid tag_id;
+	git_tag *tag;
+
+	create_annotation(&tag_id, "new_tag");
+
+	cl_git_pass(git_tag_lookup(&tag, g_repo, &tag_id));
+	cl_assert_equal_s("new_tag", git_tag_name(tag));
+
+	git_tag_free(tag);
+}
+
+void test_object_tag_write__creating_an_annotation_does_not_create_a_reference(void)
+{
+	git_oid tag_id;
+	git_reference *tag_ref;
+
+	create_annotation(&tag_id, "new_tag");
+	cl_git_fail_with(git_reference_lookup(&tag_ref, g_repo, "refs/tags/new_tag"), GIT_ENOTFOUND);
+}
diff --git a/tests/libgit2/object/tree/attributes.c b/tests/libgit2/object/tree/attributes.c
new file mode 100644
index 000000000..8654dfa31
--- /dev/null
+++ b/tests/libgit2/object/tree/attributes.c
@@ -0,0 +1,118 @@
+#include "clar_libgit2.h"
+#include "tree.h"
+
+static git_repository *repo;
+
+static const char *blob_oid = "3d0970ec547fc41ef8a5882dde99c6adce65b021";
+static const char *tree_oid  = "1b05fdaa881ee45b48cbaa5e9b037d667a47745e";
+
+void test_object_tree_attributes__initialize(void)
+{
+	repo = cl_git_sandbox_init("deprecated-mode.git");
+}
+
+void test_object_tree_attributes__cleanup(void)
+{
+   cl_git_sandbox_cleanup();
+}
+
+void test_object_tree_attributes__ensure_correctness_of_attributes_on_insertion(void)
+{
+	git_treebuilder *builder;
+	git_oid oid;
+
+	cl_git_pass(git_oid_fromstr(&oid, blob_oid));
+
+	cl_git_pass(git_treebuilder_new(&builder, repo, NULL));
+
+	cl_git_fail(git_treebuilder_insert(NULL, builder, "one.txt", &oid, (git_filemode_t)0777777));
+	cl_git_fail(git_treebuilder_insert(NULL, builder, "one.txt", &oid, (git_filemode_t)0100666));
+	cl_git_fail(git_treebuilder_insert(NULL, builder, "one.txt", &oid, (git_filemode_t)0000001));
+
+	git_treebuilder_free(builder);
+}
+
+void test_object_tree_attributes__group_writable_tree_entries_created_with_an_antique_git_version_can_still_be_accessed(void)
+{
+	git_oid tid;
+	git_tree *tree;
+	const git_tree_entry *entry;
+
+
+	cl_git_pass(git_oid_fromstr(&tid, tree_oid));
+	cl_git_pass(git_tree_lookup(&tree, repo, &tid));
+
+	entry = git_tree_entry_byname(tree, "old_mode.txt");
+	cl_assert_equal_i(
+		GIT_FILEMODE_BLOB,
+		git_tree_entry_filemode(entry));
+
+	git_tree_free(tree);
+}
+
+void test_object_tree_attributes__treebuilder_reject_invalid_filemode(void)
+{
+	git_treebuilder *builder;
+	git_oid bid;
+	const git_tree_entry *entry;
+
+	cl_git_pass(git_oid_fromstr(&bid, blob_oid));
+	cl_git_pass(git_treebuilder_new(&builder, repo, NULL));
+
+	cl_git_fail(git_treebuilder_insert(
+		&entry,
+		builder,
+		"normalized.txt",
+		&bid,
+		GIT_FILEMODE_BLOB_GROUP_WRITABLE));
+
+	git_treebuilder_free(builder);
+}
+
+void test_object_tree_attributes__normalize_attributes_when_creating_a_tree_from_an_existing_one(void)
+{
+	git_treebuilder *builder;
+	git_oid tid, tid2;
+	git_tree *tree;
+	const git_tree_entry *entry;
+
+	cl_git_pass(git_oid_fromstr(&tid, tree_oid));
+	cl_git_pass(git_tree_lookup(&tree, repo, &tid));
+
+	cl_git_pass(git_treebuilder_new(&builder, repo, tree));
+	
+	entry = git_treebuilder_get(builder, "old_mode.txt");
+	cl_assert(entry != NULL);
+	cl_assert_equal_i(
+		GIT_FILEMODE_BLOB,
+		git_tree_entry_filemode(entry));
+
+	cl_git_pass(git_treebuilder_write(&tid2, builder));
+	git_treebuilder_free(builder);
+	git_tree_free(tree);
+
+	cl_git_pass(git_tree_lookup(&tree, repo, &tid2));
+	entry = git_tree_entry_byname(tree, "old_mode.txt");
+	cl_assert(entry != NULL);
+	cl_assert_equal_i(
+		GIT_FILEMODE_BLOB,
+		git_tree_entry_filemode(entry));
+
+	git_tree_free(tree);
+}
+
+void test_object_tree_attributes__normalize_600(void)
+{
+	git_oid id;
+	git_tree *tree;
+	const git_tree_entry *entry;
+
+	git_oid_fromstr(&id, "0810fb7818088ff5ac41ee49199b51473b1bd6c7");
+	cl_git_pass(git_tree_lookup(&tree, repo, &id));
+
+	entry = git_tree_entry_byname(tree, "ListaTeste.xml");
+	cl_assert_equal_i(git_tree_entry_filemode(entry), GIT_FILEMODE_BLOB);
+	cl_assert_equal_i(git_tree_entry_filemode_raw(entry), 0100600);
+
+	git_tree_free(tree);
+}
diff --git a/tests/libgit2/object/tree/duplicateentries.c b/tests/libgit2/object/tree/duplicateentries.c
new file mode 100644
index 000000000..c11ae0d3d
--- /dev/null
+++ b/tests/libgit2/object/tree/duplicateentries.c
@@ -0,0 +1,157 @@
+#include "clar_libgit2.h"
+#include "tree.h"
+
+static git_repository *_repo;
+
+void test_object_tree_duplicateentries__initialize(void) {
+   _repo = cl_git_sandbox_init("testrepo");
+}
+
+void test_object_tree_duplicateentries__cleanup(void) {
+   cl_git_sandbox_cleanup();
+}
+
+/*
+ * $ git show --format=raw refs/heads/dir
+ * commit 144344043ba4d4a405da03de3844aa829ae8be0e
+ * tree d52a8fe84ceedf260afe4f0287bbfca04a117e83
+ * parent cf80f8de9f1185bf3a05f993f6121880dd0cfbc9
+ * author Ben Straub <bstraub@github.com> 1343755506 -0700
+ * committer Ben Straub <bstraub@github.com> 1343755506 -0700
+ *
+ *     Change a file mode
+ *
+ * diff --git a/a/b.txt b/a/b.txt
+ * old mode 100644
+ * new mode 100755
+ *
+ * $ git ls-tree d52a8fe84ceedf260afe4f0287bbfca04a117e83
+ * 100644 blob a8233120f6ad708f843d861ce2b7228ec4e3dec6    README
+ * 040000 tree 4e0883eeeeebc1fb1735161cea82f7cb5fab7e63    a
+ * 100644 blob 45b983be36b73c0788dc9cbcb76cbb80fc7bb057    branch_file.txt
+ * 100644 blob a71586c1dfe8a71c6cbf6c129f404c5642ff31bd    new.txt
+ */
+
+static void tree_checker(
+	git_oid *tid,
+	const char *expected_sha,
+	git_filemode_t expected_filemode)
+{
+	git_tree *tree;
+	const git_tree_entry *entry;
+	git_oid oid;
+
+	cl_git_pass(git_tree_lookup(&tree, _repo, tid));
+	cl_assert_equal_i(1, (int)git_tree_entrycount(tree));
+	entry = git_tree_entry_byindex(tree, 0);
+
+	cl_git_pass(git_oid_fromstr(&oid, expected_sha));
+
+	cl_assert_equal_i(0, git_oid_cmp(&oid, git_tree_entry_id(entry)));
+	cl_assert_equal_i(expected_filemode, git_tree_entry_filemode(entry));
+
+	git_tree_free(tree);
+}
+
+static void tree_creator(git_oid *out, void (*fn)(git_treebuilder *))
+{
+	git_treebuilder *builder;
+
+	cl_git_pass(git_treebuilder_new(&builder, _repo, NULL));
+
+	fn(builder);
+
+	cl_git_pass(git_treebuilder_write(out, builder));
+	git_treebuilder_free(builder);
+}
+
+static void two_blobs(git_treebuilder *bld)
+{
+	git_oid oid;
+	const git_tree_entry *entry;
+
+	cl_git_pass(git_oid_fromstr(&oid,
+		"a8233120f6ad708f843d861ce2b7228ec4e3dec6"));	/* blob oid (README) */
+
+	cl_git_pass(git_treebuilder_insert(
+		&entry,	bld, "duplicate", &oid,
+		GIT_FILEMODE_BLOB));
+
+	cl_git_pass(git_oid_fromstr(&oid,
+		"a71586c1dfe8a71c6cbf6c129f404c5642ff31bd"));	/* blob oid (new.txt) */
+
+	cl_git_pass(git_treebuilder_insert(
+		&entry,	bld, "duplicate", &oid,
+		GIT_FILEMODE_BLOB));
+}
+
+static void one_blob_and_one_tree(git_treebuilder *bld)
+{
+	git_oid oid;
+	const git_tree_entry *entry;
+
+	cl_git_pass(git_oid_fromstr(&oid,
+		"a8233120f6ad708f843d861ce2b7228ec4e3dec6"));	/* blob oid (README) */
+
+	cl_git_pass(git_treebuilder_insert(
+		&entry,	bld, "duplicate", &oid,
+		GIT_FILEMODE_BLOB));
+
+	cl_git_pass(git_oid_fromstr(&oid,
+		"4e0883eeeeebc1fb1735161cea82f7cb5fab7e63"));	/* tree oid (a) */
+
+	cl_git_pass(git_treebuilder_insert(
+		&entry,	bld, "duplicate", &oid,
+		GIT_FILEMODE_TREE));
+}
+
+void test_object_tree_duplicateentries__cannot_create_a_duplicate_entry_through_the_treebuilder(void)
+{
+	git_oid tid;
+
+	tree_creator(&tid, two_blobs);
+	tree_checker(&tid, "a71586c1dfe8a71c6cbf6c129f404c5642ff31bd", GIT_FILEMODE_BLOB);
+
+	tree_creator(&tid, one_blob_and_one_tree);
+	tree_checker(&tid, "4e0883eeeeebc1fb1735161cea82f7cb5fab7e63", GIT_FILEMODE_TREE);
+}
+
+static void add_fake_conflicts(git_index *index)
+{
+	git_index_entry ancestor_entry, our_entry, their_entry;
+
+	memset(&ancestor_entry, 0x0, sizeof(git_index_entry));
+	memset(&our_entry, 0x0, sizeof(git_index_entry));
+	memset(&their_entry, 0x0, sizeof(git_index_entry));
+
+	ancestor_entry.path = "duplicate";
+	ancestor_entry.mode = GIT_FILEMODE_BLOB;
+	GIT_INDEX_ENTRY_STAGE_SET(&ancestor_entry, 1);
+	git_oid_fromstr(&ancestor_entry.id, "a8233120f6ad708f843d861ce2b7228ec4e3dec6");
+
+	our_entry.path = "duplicate";
+	our_entry.mode = GIT_FILEMODE_BLOB;
+	GIT_INDEX_ENTRY_STAGE_SET(&our_entry, 2);
+	git_oid_fromstr(&our_entry.id, "45b983be36b73c0788dc9cbcb76cbb80fc7bb057");
+
+	their_entry.path = "duplicate";
+	their_entry.mode = GIT_FILEMODE_BLOB;
+	GIT_INDEX_ENTRY_STAGE_SET(&their_entry, 3);
+	git_oid_fromstr(&their_entry.id, "a71586c1dfe8a71c6cbf6c129f404c5642ff31bd");
+
+	cl_git_pass(git_index_conflict_add(index, &ancestor_entry, &our_entry, &their_entry));
+}
+
+void test_object_tree_duplicateentries__cannot_create_a_duplicate_entry_building_a_tree_from_a_index_with_conflicts(void)
+{
+	git_index *index;
+	git_oid tid;
+
+	cl_git_pass(git_repository_index(&index, _repo));
+
+	add_fake_conflicts(index);
+
+	cl_assert_equal_i(GIT_EUNMERGED, git_index_write_tree(&tid, index));
+
+	git_index_free(index);
+}
diff --git a/tests/libgit2/object/tree/frompath.c b/tests/libgit2/object/tree/frompath.c
new file mode 100644
index 000000000..86ca47e94
--- /dev/null
+++ b/tests/libgit2/object/tree/frompath.c
@@ -0,0 +1,68 @@
+#include "clar_libgit2.h"
+
+static git_repository *repo;
+static	git_tree *tree;
+
+void test_object_tree_frompath__initialize(void)
+{
+	git_oid id;
+	const char *tree_with_subtrees_oid = "ae90f12eea699729ed24555e40b9fd669da12a12";
+
+	cl_git_pass(git_repository_open(&repo, cl_fixture("testrepo.git")));
+	cl_assert(repo != NULL);
+
+	cl_git_pass(git_oid_fromstr(&id, tree_with_subtrees_oid));
+	cl_git_pass(git_tree_lookup(&tree, repo, &id));
+	cl_assert(tree != NULL);
+}
+
+void test_object_tree_frompath__cleanup(void)
+{
+	git_tree_free(tree);
+	tree = NULL;
+
+	git_repository_free(repo);
+	repo = NULL;
+}
+
+static void assert_tree_from_path(
+	git_tree *root,
+	const char *path,
+	const char *expected_entry_name)
+{
+	git_tree_entry *entry;
+
+	cl_git_pass(git_tree_entry_bypath(&entry, root, path));
+	cl_assert_equal_s(git_tree_entry_name(entry), expected_entry_name);
+	git_tree_entry_free(entry);
+}
+
+void test_object_tree_frompath__retrieve_tree_from_path_to_treeentry(void)
+{
+	git_tree_entry *e;
+
+	assert_tree_from_path(tree, "README", "README");
+	assert_tree_from_path(tree, "ab/de/fgh/1.txt", "1.txt");
+	assert_tree_from_path(tree, "ab/de/fgh", "fgh");
+	assert_tree_from_path(tree, "ab/de/fgh/", "fgh");
+	assert_tree_from_path(tree, "ab/de", "de");
+	assert_tree_from_path(tree, "ab/", "ab");
+	assert_tree_from_path(tree, "ab/de/", "de");
+
+	cl_assert_equal_i(GIT_ENOTFOUND, git_tree_entry_bypath(&e, tree, "i-do-not-exist.txt"));
+	cl_assert_equal_i(GIT_ENOTFOUND, git_tree_entry_bypath(&e, tree, "README/"));
+	cl_assert_equal_i(GIT_ENOTFOUND, git_tree_entry_bypath(&e, tree, "ab/de/fgh/i-do-not-exist.txt"));
+	cl_assert_equal_i(GIT_ENOTFOUND, git_tree_entry_bypath(&e, tree, "nope/de/fgh/1.txt"));
+	cl_assert_equal_i(GIT_ENOTFOUND, git_tree_entry_bypath(&e, tree, "ab/me-neither/fgh/2.txt"));
+	cl_assert_equal_i(GIT_ENOTFOUND, git_tree_entry_bypath(&e, tree, "ab/me-neither/fgh/2.txt/"));
+}
+
+void test_object_tree_frompath__fail_when_processing_an_invalid_path(void)
+{
+	git_tree_entry *e;
+
+	cl_must_fail(git_tree_entry_bypath(&e, tree, "/"));
+	cl_must_fail(git_tree_entry_bypath(&e, tree, "/ab"));
+	cl_must_fail(git_tree_entry_bypath(&e, tree, "/ab/de"));
+	cl_must_fail(git_tree_entry_bypath(&e, tree, "ab//de"));
+}
diff --git a/tests/libgit2/object/tree/parse.c b/tests/libgit2/object/tree/parse.c
new file mode 100644
index 000000000..9d76a74f0
--- /dev/null
+++ b/tests/libgit2/object/tree/parse.c
@@ -0,0 +1,164 @@
+#include "clar_libgit2.h"
+#include "tree.h"
+#include "object.h"
+
+#define OID1_HEX \
+	"\xae\x90\xf1\x2e\xea\x69\x97\x29\xed\x24" \
+	"\x55\x5e\x40\xb9\xfd\x66\x9d\xa1\x2a\x12"
+#define OID1_STR "ae90f12eea699729ed24555e40b9fd669da12a12"
+
+#define OID2_HEX \
+	"\xe8\xbf\xe5\xaf\x39\x57\x9a\x7e\x48\x98" \
+	"\xbb\x23\xf3\xa7\x6a\x72\xc3\x68\xce\xe6"
+#define OID2_STR "e8bfe5af39579a7e4898bb23f3a76a72c368cee6"
+
+typedef struct {
+	const char *filename;
+	uint16_t attr;
+	const char *oid;
+} expected_entry;
+
+static void assert_tree_parses(const char *data, size_t datalen,
+	expected_entry *expected_entries, size_t expected_nentries)
+{
+	git_tree *tree;
+	size_t n;
+
+	if (!datalen)
+		datalen = strlen(data);
+	cl_git_pass(git_object__from_raw((git_object **) &tree, data, datalen, GIT_OBJECT_TREE));
+
+	cl_assert_equal_i(git_tree_entrycount(tree), expected_nentries);
+
+	for (n = 0; n < expected_nentries; n++) {
+		expected_entry *expected = expected_entries + n;
+		const git_tree_entry *entry;
+		git_oid oid;
+
+		cl_git_pass(git_oid_fromstr(&oid, expected->oid));
+
+		cl_assert(entry = git_tree_entry_byname(tree, expected->filename));
+		cl_assert_equal_s(expected->filename, entry->filename);
+		cl_assert_equal_i(expected->attr, entry->attr);
+		cl_assert_equal_oid(&oid, entry->oid);
+	}
+
+	git_object_free(&tree->object);
+}
+
+static void assert_tree_fails(const char *data, size_t datalen)
+{
+	git_object *object;
+	if (!datalen)
+		datalen = strlen(data);
+	cl_git_fail(git_object__from_raw(&object, data, datalen, GIT_OBJECT_TREE));
+}
+
+void test_object_tree_parse__single_blob_parses(void)
+{
+	expected_entry entries[] = {
+		{ "foo", 0100644, OID1_STR },
+	};
+	const char data[] = "100644 foo\x00" OID1_HEX;
+
+	assert_tree_parses(data, ARRAY_SIZE(data) - 1, entries, ARRAY_SIZE(entries));
+}
+
+void test_object_tree_parse__single_tree_parses(void)
+{
+	expected_entry entries[] = {
+		{ "foo", 040000, OID1_STR },
+	};
+	const char data[] = "040000 foo\x00" OID1_HEX;
+
+	assert_tree_parses(data, ARRAY_SIZE(data) - 1, entries, ARRAY_SIZE(entries));
+}
+
+void test_object_tree_parse__leading_filename_spaces_parse(void)
+{
+	expected_entry entries[] = {
+		{ "       bar", 0100644, OID1_STR },
+	};
+	const char data[] = "100644        bar\x00" OID1_HEX;
+
+	assert_tree_parses(data, ARRAY_SIZE(data) - 1, entries, ARRAY_SIZE(entries));
+}
+
+void test_object_tree_parse__multiple_entries_parse(void)
+{
+	expected_entry entries[] = {
+		{ "bar", 0100644, OID1_STR },
+		{ "foo", 040000,  OID2_STR },
+	};
+	const char data[] =
+	    "100644 bar\x00" OID1_HEX
+	    "040000 foo\x00" OID2_HEX;
+
+	assert_tree_parses(data, ARRAY_SIZE(data) - 1, entries, ARRAY_SIZE(entries));
+}
+
+void test_object_tree_parse__invalid_mode_fails(void)
+{
+	const char data[] = "10x644 bar\x00" OID1_HEX;
+	assert_tree_fails(data, ARRAY_SIZE(data) - 1);
+}
+
+void test_object_tree_parse__missing_mode_fails(void)
+{
+	const char data[] = " bar\x00" OID1_HEX;
+	assert_tree_fails(data, ARRAY_SIZE(data) - 1);
+}
+
+void test_object_tree_parse__mode_doesnt_cause_oob_read(void)
+{
+	const char data[] = "100644 bar\x00" OID1_HEX;
+	assert_tree_fails(data, 2);
+	/*
+	 * An oob-read would correctly parse the filename and
+	 * later fail to parse the OID with a different error
+	 * message
+	 */
+	cl_assert_equal_s(git_error_last()->message, "failed to parse tree: missing space after filemode");
+}
+
+void test_object_tree_parse__unreasonably_large_mode_fails(void)
+{
+	const char data[] = "10000000000000000000000000 bar\x00" OID1_HEX;
+	assert_tree_fails(data, ARRAY_SIZE(data) - 1);
+}
+
+void test_object_tree_parse__missing_filename_separator_fails(void)
+{
+	const char data[] = "100644bar\x00" OID1_HEX;
+	assert_tree_fails(data, ARRAY_SIZE(data) - 1);
+}
+
+void test_object_tree_parse__missing_filename_terminator_fails(void)
+{
+	const char data[] = "100644 bar" OID1_HEX;
+	assert_tree_fails(data, ARRAY_SIZE(data) - 1);
+}
+
+void test_object_tree_parse__empty_filename_fails(void)
+{
+	const char data[] = "100644 \x00" OID1_HEX;
+	assert_tree_fails(data, ARRAY_SIZE(data) - 1);
+}
+
+void test_object_tree_parse__trailing_garbage_fails(void)
+{
+	const char data[] = "100644 bar\x00" OID1_HEX "x";
+	assert_tree_fails(data, ARRAY_SIZE(data) - 1);
+}
+
+void test_object_tree_parse__leading_space_fails(void)
+{
+	const char data[] = " 100644 bar\x00" OID1_HEX;
+	assert_tree_fails(data, ARRAY_SIZE(data) - 1);
+}
+
+void test_object_tree_parse__truncated_oid_fails(void)
+{
+	const char data[] = " 100644 bar\x00" OID1_HEX;
+	assert_tree_fails(data, ARRAY_SIZE(data) - 2);
+}
diff --git a/tests/libgit2/object/tree/read.c b/tests/libgit2/object/tree/read.c
new file mode 100644
index 000000000..95a2e70fb
--- /dev/null
+++ b/tests/libgit2/object/tree/read.c
@@ -0,0 +1,119 @@
+#include "clar_libgit2.h"
+
+#include "tree.h"
+
+static const char *tree_oid = "1810dff58d8a660512d4832e740f692884338ccd";
+
+static git_repository *g_repo;
+
+/* Fixture setup and teardown */
+void test_object_tree_read__initialize(void)
+{
+   g_repo = cl_git_sandbox_init("testrepo");
+}
+
+void test_object_tree_read__cleanup(void)
+{
+   cl_git_sandbox_cleanup();
+}
+
+
+
+void test_object_tree_read__loaded(void)
+{
+	/* access randomly the entries on a loaded tree */
+	git_oid id;
+	git_tree *tree;
+
+	git_oid_fromstr(&id, tree_oid);
+
+	cl_git_pass(git_tree_lookup(&tree, g_repo, &id));
+
+	cl_assert(git_tree_entry_byname(tree, "README") != NULL);
+	cl_assert(git_tree_entry_byname(tree, "NOTEXISTS") == NULL);
+	cl_assert(git_tree_entry_byname(tree, "") == NULL);
+	cl_assert(git_tree_entry_byindex(tree, 0) != NULL);
+	cl_assert(git_tree_entry_byindex(tree, 2) != NULL);
+	cl_assert(git_tree_entry_byindex(tree, 3) == NULL);
+	cl_assert(git_tree_entry_byindex(tree, (unsigned int)-1) == NULL);
+
+	git_tree_free(tree);
+}
+
+void test_object_tree_read__two(void)
+{
+	/* read a tree from the repository */
+	git_oid id;
+	git_tree *tree;
+	const git_tree_entry *entry;
+	git_object *obj;
+
+	git_oid_fromstr(&id, tree_oid);
+
+	cl_git_pass(git_tree_lookup(&tree, g_repo, &id));
+
+	cl_assert(git_tree_entrycount(tree) == 3);
+
+	/* GH-86: git_object_lookup() should also check the type if the object comes from the cache */
+	cl_assert(git_object_lookup(&obj, g_repo, &id, GIT_OBJECT_TREE) == 0);
+	cl_assert(obj != NULL);
+	git_object_free(obj);
+	obj = NULL;
+	cl_git_fail(git_object_lookup(&obj, g_repo, &id, GIT_OBJECT_BLOB));
+	cl_assert(obj == NULL);
+
+	entry = git_tree_entry_byname(tree, "README");
+	cl_assert(entry != NULL);
+
+	cl_assert_equal_s(git_tree_entry_name(entry), "README");
+
+	cl_git_pass(git_tree_entry_to_object(&obj, g_repo, entry));
+	cl_assert(obj != NULL);
+
+	git_object_free(obj);
+	git_tree_free(tree);
+}
+
+#define BIGFILE "bigfile"
+
+#ifdef GIT_ARCH_64
+#define BIGFILE_SIZE (off_t)4294967296
+#else
+# define BIGFILE_SIZE SIZE_MAX
+#endif
+
+void test_object_tree_read__largefile(void)
+{
+	const git_tree_entry *entry;
+	git_index_entry ie;
+	git_commit *commit;
+	git_object *object;
+	git_index *index;
+	git_tree *tree;
+	git_oid oid;
+	char *buf;
+
+	if (!cl_is_env_set("GITTEST_INVASIVE_FS_SIZE"))
+		cl_skip();
+
+	cl_assert(buf = git__calloc(1, BIGFILE_SIZE));
+
+	memset(&ie, 0, sizeof(ie));
+	ie.mode = GIT_FILEMODE_BLOB;
+	ie.path = BIGFILE;
+
+	cl_git_pass(git_repository_index(&index, g_repo));
+	cl_git_pass(git_index_add_from_buffer(index, &ie, buf, BIGFILE_SIZE));
+	cl_repo_commit_from_index(&oid, g_repo, NULL, 0, BIGFILE);
+
+	cl_git_pass(git_commit_lookup(&commit, g_repo, &oid));
+	cl_git_pass(git_commit_tree(&tree, commit));
+	cl_assert(entry = git_tree_entry_byname(tree, BIGFILE));
+	cl_git_pass(git_tree_entry_to_object(&object, g_repo, entry));
+
+	git_object_free(object);
+	git_tree_free(tree);
+	git_index_free(index);
+	git_commit_free(commit);
+	git__free(buf);
+}
diff --git a/tests/libgit2/object/tree/update.c b/tests/libgit2/object/tree/update.c
new file mode 100644
index 000000000..41b50f3e9
--- /dev/null
+++ b/tests/libgit2/object/tree/update.c
@@ -0,0 +1,302 @@
+#include "clar_libgit2.h"
+#include "tree.h"
+
+static git_repository *g_repo;
+
+void test_object_tree_update__initialize(void)
+{
+	g_repo = cl_git_sandbox_init("testrepo2");
+}
+
+void test_object_tree_update__cleanup(void)
+{
+	cl_git_sandbox_cleanup();
+}
+
+void test_object_tree_update__remove_blob(void)
+{
+	git_oid tree_index_id, tree_updater_id, base_id;
+	git_tree *base_tree;
+	git_index *idx;
+	const char *path = "README";
+
+	git_tree_update updates[] = {
+		{ GIT_TREE_UPDATE_REMOVE, {{0}}, GIT_FILEMODE_BLOB /* ignored */, path},
+	};
+
+	cl_git_pass(git_oid_fromstr(&base_id, "c4dc1555e4d4fa0e0c9c3fc46734c7c35b3ce90b"));
+	cl_git_pass(git_tree_lookup(&base_tree, g_repo, &base_id));
+
+	/* Create it with an index */
+	cl_git_pass(git_index_new(&idx));
+	cl_git_pass(git_index_read_tree(idx, base_tree));
+	cl_git_pass(git_index_remove(idx, path, 0));
+	cl_git_pass(git_index_write_tree_to(&tree_index_id, idx, g_repo));
+	git_index_free(idx);
+
+	/* Perform the same operation via the tree updater */
+	cl_git_pass(git_tree_create_updated(&tree_updater_id, g_repo, base_tree, 1, updates));
+
+	cl_assert_equal_oid(&tree_index_id, &tree_updater_id);
+
+	git_tree_free(base_tree);
+}
+
+void test_object_tree_update__remove_blob_deeper(void)
+{
+	git_oid tree_index_id, tree_updater_id, base_id;
+	git_tree *base_tree;
+	git_index *idx;
+	const char *path = "subdir/README";
+
+	git_tree_update updates[] = {
+		{ GIT_TREE_UPDATE_REMOVE, {{0}}, GIT_FILEMODE_BLOB /* ignored */, path},
+	};
+
+	cl_git_pass(git_oid_fromstr(&base_id, "c4dc1555e4d4fa0e0c9c3fc46734c7c35b3ce90b"));
+	cl_git_pass(git_tree_lookup(&base_tree, g_repo, &base_id));
+
+	/* Create it with an index */
+	cl_git_pass(git_index_new(&idx));
+	cl_git_pass(git_index_read_tree(idx, base_tree));
+	cl_git_pass(git_index_remove(idx, path, 0));
+	cl_git_pass(git_index_write_tree_to(&tree_index_id, idx, g_repo));
+	git_index_free(idx);
+
+	/* Perform the same operation via the tree updater */
+	cl_git_pass(git_tree_create_updated(&tree_updater_id, g_repo, base_tree, 1, updates));
+
+	cl_assert_equal_oid(&tree_index_id, &tree_updater_id);
+
+	git_tree_free(base_tree);
+}
+
+void test_object_tree_update__remove_all_entries(void)
+{
+	git_oid tree_index_id, tree_updater_id, base_id;
+	git_tree *base_tree;
+	git_index *idx;
+	const char *path1 = "subdir/subdir2/README";
+	const char *path2 = "subdir/subdir2/new.txt";
+
+	git_tree_update updates[] = {
+		{ GIT_TREE_UPDATE_REMOVE, {{0}}, GIT_FILEMODE_BLOB /* ignored */, path1},
+		{ GIT_TREE_UPDATE_REMOVE, {{0}}, GIT_FILEMODE_BLOB /* ignored */, path2},
+	};
+
+	cl_git_pass(git_oid_fromstr(&base_id, "c4dc1555e4d4fa0e0c9c3fc46734c7c35b3ce90b"));
+	cl_git_pass(git_tree_lookup(&base_tree, g_repo, &base_id));
+
+	/* Create it with an index */
+	cl_git_pass(git_index_new(&idx));
+	cl_git_pass(git_index_read_tree(idx, base_tree));
+	cl_git_pass(git_index_remove(idx, path1, 0));
+	cl_git_pass(git_index_remove(idx, path2, 0));
+	cl_git_pass(git_index_write_tree_to(&tree_index_id, idx, g_repo));
+	git_index_free(idx);
+
+	/* Perform the same operation via the tree updater */
+	cl_git_pass(git_tree_create_updated(&tree_updater_id, g_repo, base_tree, 2, updates));
+
+	cl_assert_equal_oid(&tree_index_id, &tree_updater_id);
+
+	git_tree_free(base_tree);
+}
+
+void test_object_tree_update__replace_blob(void)
+{
+	git_oid tree_index_id, tree_updater_id, base_id;
+	git_tree *base_tree;
+	git_index *idx;
+	const char *path = "README";
+	git_index_entry entry = { {0} };
+
+	git_tree_update updates[] = {
+		{ GIT_TREE_UPDATE_UPSERT, {{0}}, GIT_FILEMODE_BLOB, path},
+	};
+
+	cl_git_pass(git_oid_fromstr(&base_id, "c4dc1555e4d4fa0e0c9c3fc46734c7c35b3ce90b"));
+	cl_git_pass(git_tree_lookup(&base_tree, g_repo, &base_id));
+
+	/* Create it with an index */
+	cl_git_pass(git_index_new(&idx));
+	cl_git_pass(git_index_read_tree(idx, base_tree));
+
+	entry.path = path;
+	cl_git_pass(git_oid_fromstr(&entry.id, "fa49b077972391ad58037050f2a75f74e3671e92"));
+	entry.mode = GIT_FILEMODE_BLOB;
+	cl_git_pass(git_index_add(idx, &entry));
+
+	cl_git_pass(git_index_write_tree_to(&tree_index_id, idx, g_repo));
+	git_index_free(idx);
+
+	/* Perform the same operation via the tree updater */
+	cl_git_pass(git_oid_fromstr(&updates[0].id, "fa49b077972391ad58037050f2a75f74e3671e92"));
+	cl_git_pass(git_tree_create_updated(&tree_updater_id, g_repo, base_tree, 1, updates));
+
+	cl_assert_equal_oid(&tree_index_id, &tree_updater_id);
+
+	git_tree_free(base_tree);
+}
+
+void test_object_tree_update__add_blobs(void)
+{
+	git_oid tree_index_id, tree_updater_id, base_id;
+	git_tree *base_tree;
+	git_index *idx;
+	git_index_entry entry = { {0} };
+	int i;
+	const char *paths[] = {
+		"some/deep/path",
+		"some/other/path",
+		"a/path/elsewhere",
+	};
+
+	git_tree_update updates[] = {
+		{ GIT_TREE_UPDATE_UPSERT, {{0}}, GIT_FILEMODE_BLOB, paths[0]},
+		{ GIT_TREE_UPDATE_UPSERT, {{0}}, GIT_FILEMODE_BLOB, paths[1]},
+		{ GIT_TREE_UPDATE_UPSERT, {{0}}, GIT_FILEMODE_BLOB, paths[2]},
+	};
+
+	cl_git_pass(git_oid_fromstr(&base_id, "c4dc1555e4d4fa0e0c9c3fc46734c7c35b3ce90b"));
+
+	entry.mode = GIT_FILEMODE_BLOB;
+	cl_git_pass(git_oid_fromstr(&entry.id, "fa49b077972391ad58037050f2a75f74e3671e92"));
+
+	for (i = 0; i < 3; i++) {
+		cl_git_pass(git_oid_fromstr(&updates[i].id, "fa49b077972391ad58037050f2a75f74e3671e92"));
+	}
+
+	for (i = 0; i < 2; i++) {
+		int j;
+
+		/* Create it with an index */
+		cl_git_pass(git_index_new(&idx));
+
+		base_tree = NULL;
+		if (i == 1) {
+			cl_git_pass(git_tree_lookup(&base_tree, g_repo, &base_id));
+			cl_git_pass(git_index_read_tree(idx, base_tree));
+		}
+
+		for (j = 0; j < 3; j++) {
+			entry.path = paths[j];
+			cl_git_pass(git_index_add(idx, &entry));
+		}
+
+		cl_git_pass(git_index_write_tree_to(&tree_index_id, idx, g_repo));
+		git_index_free(idx);
+
+		/* Perform the same operations via the tree updater */
+		cl_git_pass(git_tree_create_updated(&tree_updater_id, g_repo, base_tree, 3, updates));
+
+		cl_assert_equal_oid(&tree_index_id, &tree_updater_id);
+	}
+
+	git_tree_free(base_tree);
+}
+
+void test_object_tree_update__add_blobs_unsorted(void)
+{
+	git_oid tree_index_id, tree_updater_id, base_id;
+	git_tree *base_tree;
+	git_index *idx;
+	git_index_entry entry = { {0} };
+	int i;
+	const char *paths[] = {
+		"some/deep/path",
+		"a/path/elsewhere",
+		"some/other/path",
+	};
+
+	git_tree_update updates[] = {
+		{ GIT_TREE_UPDATE_UPSERT, {{0}}, GIT_FILEMODE_BLOB, paths[0]},
+		{ GIT_TREE_UPDATE_UPSERT, {{0}}, GIT_FILEMODE_BLOB, paths[1]},
+		{ GIT_TREE_UPDATE_UPSERT, {{0}}, GIT_FILEMODE_BLOB, paths[2]},
+	};
+
+	cl_git_pass(git_oid_fromstr(&base_id, "c4dc1555e4d4fa0e0c9c3fc46734c7c35b3ce90b"));
+
+	entry.mode = GIT_FILEMODE_BLOB;
+	cl_git_pass(git_oid_fromstr(&entry.id, "fa49b077972391ad58037050f2a75f74e3671e92"));
+
+	for (i = 0; i < 3; i++) {
+		cl_git_pass(git_oid_fromstr(&updates[i].id, "fa49b077972391ad58037050f2a75f74e3671e92"));
+	}
+
+	for (i = 0; i < 2; i++) {
+		int j;
+
+		/* Create it with an index */
+		cl_git_pass(git_index_new(&idx));
+
+		base_tree = NULL;
+		if (i == 1) {
+			cl_git_pass(git_tree_lookup(&base_tree, g_repo, &base_id));
+			cl_git_pass(git_index_read_tree(idx, base_tree));
+		}
+
+		for (j = 0; j < 3; j++) {
+			entry.path = paths[j];
+			cl_git_pass(git_index_add(idx, &entry));
+		}
+
+		cl_git_pass(git_index_write_tree_to(&tree_index_id, idx, g_repo));
+		git_index_free(idx);
+
+		/* Perform the same operations via the tree updater */
+		cl_git_pass(git_tree_create_updated(&tree_updater_id, g_repo, base_tree, 3, updates));
+
+		cl_assert_equal_oid(&tree_index_id, &tree_updater_id);
+	}
+
+	git_tree_free(base_tree);
+}
+
+void test_object_tree_update__add_conflict(void)
+{
+	int i;
+	git_oid tree_updater_id;
+	git_tree_update updates[] = {
+		{ GIT_TREE_UPDATE_UPSERT, {{0}}, GIT_FILEMODE_BLOB, "a/dir/blob"},
+		{ GIT_TREE_UPDATE_UPSERT, {{0}}, GIT_FILEMODE_BLOB, "a/dir"},
+	};
+
+	for (i = 0; i < 2; i++) {
+		cl_git_pass(git_oid_fromstr(&updates[i].id, "a71586c1dfe8a71c6cbf6c129f404c5642ff31bd"));
+	}
+
+	cl_git_fail(git_tree_create_updated(&tree_updater_id, g_repo, NULL, 2, updates));
+}
+
+void test_object_tree_update__add_conflict2(void)
+{
+	int i;
+	git_oid tree_updater_id;
+	git_tree_update updates[] = {
+		{ GIT_TREE_UPDATE_UPSERT, {{0}}, GIT_FILEMODE_BLOB, "a/dir/blob"},
+		{ GIT_TREE_UPDATE_UPSERT, {{0}}, GIT_FILEMODE_TREE, "a/dir/blob"},
+	};
+
+	for (i = 0; i < 2; i++) {
+		cl_git_pass(git_oid_fromstr(&updates[i].id, "a71586c1dfe8a71c6cbf6c129f404c5642ff31bd"));
+	}
+
+	cl_git_fail(git_tree_create_updated(&tree_updater_id, g_repo, NULL, 2, updates));
+}
+
+void test_object_tree_update__remove_invalid_submodule(void)
+{
+	git_tree *baseline;
+	git_oid updated_tree_id, baseline_id;
+	git_tree_update updates[] = {
+		{GIT_TREE_UPDATE_REMOVE, {{0}}, GIT_FILEMODE_BLOB, "submodule"},
+	};
+
+	/* This tree contains a submodule with an all-zero commit for a submodule named 'submodule' */
+	cl_git_pass(git_oid_fromstr(&baseline_id, "396c7f1adb7925f51ba13a75f48252f44c5a14a2"));
+	cl_git_pass(git_tree_lookup(&baseline, g_repo, &baseline_id));
+	cl_git_pass(git_tree_create_updated(&updated_tree_id, g_repo, baseline, 1, updates));
+
+	git_tree_free(baseline);
+}
diff --git a/tests/libgit2/object/tree/walk.c b/tests/libgit2/object/tree/walk.c
new file mode 100644
index 000000000..d1fdaa3a0
--- /dev/null
+++ b/tests/libgit2/object/tree/walk.c
@@ -0,0 +1,177 @@
+#include "clar_libgit2.h"
+#include "tree.h"
+
+static const char *tree_oid = "1810dff58d8a660512d4832e740f692884338ccd";
+static git_repository *g_repo;
+
+void test_object_tree_walk__initialize(void)
+{
+   g_repo = cl_git_sandbox_init("testrepo");
+}
+
+void test_object_tree_walk__cleanup(void)
+{
+   cl_git_sandbox_cleanup();
+}
+
+static int treewalk_count_cb(
+	const char *root, const git_tree_entry *entry, void *payload)
+{
+	int *count = payload;
+
+	GIT_UNUSED(root);
+	GIT_UNUSED(entry);
+
+	(*count) += 1;
+
+	return 0;
+}
+
+void test_object_tree_walk__0(void)
+{
+	git_oid id;
+	git_tree *tree;
+	int ct;
+
+	git_oid_fromstr(&id, tree_oid);
+
+	cl_git_pass(git_tree_lookup(&tree, g_repo, &id));
+
+	ct = 0;
+	cl_git_pass(git_tree_walk(tree, GIT_TREEWALK_PRE, treewalk_count_cb, &ct));
+	cl_assert_equal_i(3, ct);
+
+	ct = 0;
+	cl_git_pass(git_tree_walk(tree, GIT_TREEWALK_POST, treewalk_count_cb, &ct));
+	cl_assert_equal_i(3, ct);
+
+	git_tree_free(tree);
+}
+
+
+static int treewalk_stop_cb(
+	const char *root, const git_tree_entry *entry, void *payload)
+{
+	int *count = payload;
+
+	GIT_UNUSED(root);
+	GIT_UNUSED(entry);
+
+	(*count) += 1;
+
+	return (*count == 2) ? -123 : 0;
+}
+
+static int treewalk_stop_immediately_cb(
+	const char *root, const git_tree_entry *entry, void *payload)
+{
+	GIT_UNUSED(root);
+	GIT_UNUSED(entry);
+	GIT_UNUSED(payload);
+	return -100;
+}
+
+void test_object_tree_walk__1(void)
+{
+	git_oid id;
+	git_tree *tree;
+	int ct;
+
+	git_oid_fromstr(&id, tree_oid);
+
+	cl_git_pass(git_tree_lookup(&tree, g_repo, &id));
+
+	ct = 0;
+	cl_assert_equal_i(
+		-123, git_tree_walk(tree, GIT_TREEWALK_PRE, treewalk_stop_cb, &ct));
+	cl_assert_equal_i(2, ct);
+
+	ct = 0;
+	cl_assert_equal_i(
+		-123, git_tree_walk(tree, GIT_TREEWALK_POST, treewalk_stop_cb, &ct));
+	cl_assert_equal_i(2, ct);
+
+	cl_assert_equal_i(
+		-100, git_tree_walk(
+			tree, GIT_TREEWALK_PRE, treewalk_stop_immediately_cb, NULL));
+
+	cl_assert_equal_i(
+		-100, git_tree_walk(
+			tree, GIT_TREEWALK_POST, treewalk_stop_immediately_cb, NULL));
+
+	git_tree_free(tree);
+}
+
+
+struct treewalk_skip_data {
+	int files;
+	int dirs;
+	const char *skip;
+	const char *stop;
+};
+
+static int treewalk_skip_de_cb(
+	const char *root, const git_tree_entry *entry, void *payload)
+{
+	struct treewalk_skip_data *data = payload;
+	const char *name = git_tree_entry_name(entry);
+
+	GIT_UNUSED(root);
+
+	if (git_tree_entry_type(entry) == GIT_OBJECT_TREE)
+		data->dirs++;
+	else
+		data->files++;
+
+	if (data->skip && !strcmp(name, data->skip))
+		return 1;
+	else if (data->stop && !strcmp(name, data->stop))
+		return -1;
+	else
+		return 0;
+}
+
+void test_object_tree_walk__2(void)
+{
+	git_oid id;
+	git_tree *tree;
+	struct treewalk_skip_data data;
+
+	/* look up a deep tree */
+	git_oid_fromstr(&id, "ae90f12eea699729ed24555e40b9fd669da12a12");
+	cl_git_pass(git_tree_lookup(&tree, g_repo, &id));
+
+	memset(&data, 0, sizeof(data));
+	data.skip = "de";
+
+	cl_assert_equal_i(0, git_tree_walk(
+		tree, GIT_TREEWALK_PRE, treewalk_skip_de_cb, &data));
+	cl_assert_equal_i(5, data.files);
+	cl_assert_equal_i(3, data.dirs);
+
+	memset(&data, 0, sizeof(data));
+	data.stop = "3.txt";
+
+	cl_assert_equal_i(-1, git_tree_walk(
+		tree, GIT_TREEWALK_PRE, treewalk_skip_de_cb, &data));
+	cl_assert_equal_i(3, data.files);
+	cl_assert_equal_i(2, data.dirs);
+
+	memset(&data, 0, sizeof(data));
+	data.skip = "new.txt";
+
+	cl_assert_equal_i(0, git_tree_walk(
+		tree, GIT_TREEWALK_PRE, treewalk_skip_de_cb, &data));
+	cl_assert_equal_i(7, data.files);
+	cl_assert_equal_i(4, data.dirs);
+
+	memset(&data, 0, sizeof(data));
+	data.stop = "new.txt";
+
+	cl_assert_equal_i(-1, git_tree_walk(
+		tree, GIT_TREEWALK_PRE, treewalk_skip_de_cb, &data));
+	cl_assert_equal_i(7, data.files);
+	cl_assert_equal_i(4, data.dirs);
+
+	git_tree_free(tree);
+}
diff --git a/tests/libgit2/object/tree/write.c b/tests/libgit2/object/tree/write.c
new file mode 100644
index 000000000..a4ceb35b6
--- /dev/null
+++ b/tests/libgit2/object/tree/write.c
@@ -0,0 +1,526 @@
+#include "clar_libgit2.h"
+
+#include "tree.h"
+
+static const char *blob_oid = "fa49b077972391ad58037050f2a75f74e3671e92";
+static const char *first_tree  = "181037049a54a1eb5fab404658a3a250b44335d7";
+static const char *second_tree = "f60079018b664e4e79329a7ef9559c8d9e0378d1";
+static const char *third_tree = "eb86d8b81d6adbd5290a935d6c9976882de98488";
+
+static git_repository *g_repo;
+
+/* Fixture setup and teardown */
+void test_object_tree_write__initialize(void)
+{
+   g_repo = cl_git_sandbox_init("testrepo");
+}
+
+void test_object_tree_write__cleanup(void)
+{
+   cl_git_sandbox_cleanup();
+
+	cl_git_pass(git_libgit2_opts(GIT_OPT_ENABLE_STRICT_OBJECT_CREATION, 1));
+}
+
+void test_object_tree_write__from_memory(void)
+{
+	/* write a tree from a memory */
+	git_treebuilder *builder;
+	git_tree *tree;
+	git_oid id, bid, rid, id2;
+
+	git_oid_fromstr(&id, first_tree);
+	git_oid_fromstr(&id2, second_tree);
+	git_oid_fromstr(&bid, blob_oid);
+
+	/* create a second tree from first tree using `git_treebuilder_insert`
+	 * on REPOSITORY_FOLDER.
+	 */
+	cl_git_pass(git_tree_lookup(&tree, g_repo, &id));
+	cl_git_pass(git_treebuilder_new(&builder, g_repo, tree));
+
+	cl_git_fail(git_treebuilder_insert(NULL, builder, "",
+		&bid, GIT_FILEMODE_BLOB));
+	cl_git_fail(git_treebuilder_insert(NULL, builder, "/",
+		&bid, GIT_FILEMODE_BLOB));
+	cl_git_fail(git_treebuilder_insert(NULL, builder, ".git",
+		&bid, GIT_FILEMODE_BLOB));
+	cl_git_fail(git_treebuilder_insert(NULL, builder, "..",
+		&bid, GIT_FILEMODE_BLOB));
+	cl_git_fail(git_treebuilder_insert(NULL, builder, ".",
+		&bid, GIT_FILEMODE_BLOB));
+	cl_git_fail(git_treebuilder_insert(NULL, builder, "folder/new.txt",
+		&bid, GIT_FILEMODE_BLOB));
+
+	cl_git_pass(git_treebuilder_insert(
+		NULL, builder, "new.txt", &bid, GIT_FILEMODE_BLOB));
+
+	cl_git_pass(git_treebuilder_write(&rid, builder));
+
+	cl_assert(git_oid_cmp(&rid, &id2) == 0);
+
+	git_treebuilder_free(builder);
+	git_tree_free(tree);
+}
+
+void test_object_tree_write__subtree(void)
+{
+	/* write a hierarchical tree from a memory */
+	git_treebuilder *builder;
+	git_tree *tree;
+	git_oid id, bid, subtree_id, id2, id3;
+	git_oid id_hiearar;
+
+	git_oid_fromstr(&id, first_tree);
+	git_oid_fromstr(&id2, second_tree);
+	git_oid_fromstr(&id3, third_tree);
+	git_oid_fromstr(&bid, blob_oid);
+
+	/* create subtree */
+	cl_git_pass(git_treebuilder_new(&builder, g_repo, NULL));
+	cl_git_pass(git_treebuilder_insert(
+		NULL, builder, "new.txt", &bid, GIT_FILEMODE_BLOB)); /* -V536 */
+	cl_git_pass(git_treebuilder_write(&subtree_id, builder));
+	git_treebuilder_free(builder);
+
+	/* create parent tree */
+	cl_git_pass(git_tree_lookup(&tree, g_repo, &id));
+	cl_git_pass(git_treebuilder_new(&builder, g_repo, tree));
+	cl_git_pass(git_treebuilder_insert(
+		NULL, builder, "new", &subtree_id, GIT_FILEMODE_TREE)); /* -V536 */
+	cl_git_pass(git_treebuilder_write(&id_hiearar, builder));
+	git_treebuilder_free(builder);
+	git_tree_free(tree);
+
+	cl_assert(git_oid_cmp(&id_hiearar, &id3) == 0);
+
+	/* check data is correct */
+	cl_git_pass(git_tree_lookup(&tree, g_repo, &id_hiearar));
+	cl_assert(2 == git_tree_entrycount(tree));
+	git_tree_free(tree);
+}
+
+/*
+ * And the Lord said: Is this tree properly sorted?
+ */
+void test_object_tree_write__sorted_subtrees(void)
+{
+	git_treebuilder *builder;
+	git_tree *tree;
+	unsigned int i;
+	int position_c = -1, position_cake = -1, position_config = -1;
+
+	struct {
+		unsigned int attr;
+		const char *filename;
+	} entries[] = {
+		{ GIT_FILEMODE_BLOB, ".gitattributes" },
+	  	{ GIT_FILEMODE_BLOB, ".gitignore" },
+	  	{ GIT_FILEMODE_BLOB, ".htaccess" },
+	  	{ GIT_FILEMODE_BLOB, "Capfile" },
+	  	{ GIT_FILEMODE_BLOB, "Makefile"},
+	  	{ GIT_FILEMODE_BLOB, "README"},
+	  	{ GIT_FILEMODE_TREE, "app"},
+	  	{ GIT_FILEMODE_TREE, "cake"},
+	  	{ GIT_FILEMODE_TREE, "config"},
+	  	{ GIT_FILEMODE_BLOB, "c"},
+	  	{ GIT_FILEMODE_BLOB, "git_test.txt"},
+	  	{ GIT_FILEMODE_BLOB, "htaccess.htaccess"},
+	  	{ GIT_FILEMODE_BLOB, "index.php"},
+	  	{ GIT_FILEMODE_TREE, "plugins"},
+	  	{ GIT_FILEMODE_TREE, "schemas"},
+	  	{ GIT_FILEMODE_TREE, "ssl-certs"},
+	  	{ GIT_FILEMODE_TREE, "vendors"}
+	};
+
+	git_oid bid, tid, tree_oid;
+
+	cl_git_pass(git_oid_fromstr(&bid, blob_oid));
+	cl_git_pass(git_oid_fromstr(&tid, first_tree));
+
+	cl_git_pass(git_treebuilder_new(&builder, g_repo, NULL));
+
+	for (i = 0; i < ARRAY_SIZE(entries); ++i) {
+		git_oid *id = entries[i].attr == GIT_FILEMODE_TREE ?  &tid : &bid;
+
+		cl_git_pass(git_treebuilder_insert(NULL,
+			builder, entries[i].filename, id, entries[i].attr));
+	}
+
+	cl_git_pass(git_treebuilder_write(&tree_oid, builder));
+
+	cl_git_pass(git_tree_lookup(&tree, g_repo, &tree_oid));
+	for (i = 0; i < git_tree_entrycount(tree); i++) {
+		const git_tree_entry *entry = git_tree_entry_byindex(tree, i);
+
+		if (strcmp(entry->filename, "c") == 0)
+			position_c = i;
+
+		if (strcmp(entry->filename, "cake") == 0)
+			position_cake = i;
+
+		if (strcmp(entry->filename, "config") == 0)
+			position_config = i;
+	}
+
+	git_tree_free(tree);
+
+	cl_assert(position_c != -1);
+	cl_assert(position_cake != -1);
+	cl_assert(position_config != -1);
+
+	cl_assert(position_c < position_cake);
+	cl_assert(position_cake < position_config);
+
+	git_treebuilder_free(builder);
+}
+
+static struct {
+	unsigned int attr;
+	const char *filename;
+} _entries[] = {
+	{ GIT_FILEMODE_BLOB, "aardvark" },
+	{ GIT_FILEMODE_BLOB, ".first" },
+	{ GIT_FILEMODE_BLOB, "apple" },
+	{ GIT_FILEMODE_BLOB, "last"},
+	{ GIT_FILEMODE_BLOB, "apple_after"},
+	{ GIT_FILEMODE_BLOB, "after_aardvark"},
+	{ 0, NULL },
+};
+
+void test_object_tree_write__removing_and_re_adding_in_treebuilder(void)
+{
+	git_treebuilder *builder;
+	int i, aardvark_i, apple_i, apple_after_i, apple_extra_i, last_i;
+	git_oid entry_oid, tree_oid;
+	git_tree *tree;
+
+	cl_git_pass(git_oid_fromstr(&entry_oid, blob_oid));
+
+	cl_git_pass(git_treebuilder_new(&builder, g_repo, NULL));
+
+	cl_assert_equal_i(0, (int)git_treebuilder_entrycount(builder));
+
+	for (i = 0; _entries[i].filename; ++i)
+		cl_git_pass(git_treebuilder_insert(NULL,
+			builder, _entries[i].filename, &entry_oid, _entries[i].attr));
+
+	cl_assert_equal_i(6, (int)git_treebuilder_entrycount(builder));
+
+	cl_git_pass(git_treebuilder_remove(builder, "apple"));
+	cl_assert_equal_i(5, (int)git_treebuilder_entrycount(builder));
+
+	cl_git_pass(git_treebuilder_remove(builder, "apple_after"));
+	cl_assert_equal_i(4, (int)git_treebuilder_entrycount(builder));
+
+	cl_git_pass(git_treebuilder_insert(
+		NULL, builder, "before_last", &entry_oid, GIT_FILEMODE_BLOB));
+	cl_assert_equal_i(5, (int)git_treebuilder_entrycount(builder));
+
+	/* reinsert apple_after */
+	cl_git_pass(git_treebuilder_insert(
+		NULL, builder, "apple_after", &entry_oid, GIT_FILEMODE_BLOB));
+	cl_assert_equal_i(6, (int)git_treebuilder_entrycount(builder));
+
+	cl_git_pass(git_treebuilder_remove(builder, "last"));
+	cl_assert_equal_i(5, (int)git_treebuilder_entrycount(builder));
+
+	/* reinsert last */
+	cl_git_pass(git_treebuilder_insert(
+		NULL, builder, "last", &entry_oid, GIT_FILEMODE_BLOB));
+	cl_assert_equal_i(6, (int)git_treebuilder_entrycount(builder));
+
+	cl_git_pass(git_treebuilder_insert(
+		NULL, builder, "apple_extra", &entry_oid, GIT_FILEMODE_BLOB));
+	cl_assert_equal_i(7, (int)git_treebuilder_entrycount(builder));
+
+	cl_git_pass(git_treebuilder_write(&tree_oid, builder));
+
+	git_treebuilder_free(builder);
+
+	cl_git_pass(git_tree_lookup(&tree, g_repo, &tree_oid));
+
+	cl_assert_equal_i(7, (int)git_tree_entrycount(tree));
+
+	cl_assert(git_tree_entry_byname(tree, ".first") != NULL);
+	cl_assert(git_tree_entry_byname(tree, "apple") == NULL);
+	cl_assert(git_tree_entry_byname(tree, "apple_after") != NULL);
+	cl_assert(git_tree_entry_byname(tree, "apple_extra") != NULL);
+	cl_assert(git_tree_entry_byname(tree, "last") != NULL);
+
+	aardvark_i = apple_i = apple_after_i = apple_extra_i = last_i = -1;
+
+	for (i = 0; i < 7; ++i) {
+		const git_tree_entry *entry = git_tree_entry_byindex(tree, i);
+
+		if (!strcmp(entry->filename, "aardvark"))
+			aardvark_i = i;
+		else if (!strcmp(entry->filename, "apple"))
+			apple_i = i;
+		else if (!strcmp(entry->filename, "apple_after"))
+			apple_after_i = i;
+		else if (!strcmp(entry->filename, "apple_extra"))
+			apple_extra_i = i;
+		else if (!strcmp(entry->filename, "last"))
+			last_i = i;
+	}
+
+	cl_assert_equal_i(-1, apple_i);
+	cl_assert_equal_i(6, last_i);
+	cl_assert(aardvark_i < apple_after_i);
+	cl_assert(apple_after_i < apple_extra_i);
+
+	git_tree_free(tree);
+}
+
+static int treebuilder_filter_prefixed(
+	const git_tree_entry *entry, void *payload)
+{
+	return !git__prefixcmp(git_tree_entry_name(entry), payload);
+}
+
+void test_object_tree_write__filtering(void)
+{
+	git_treebuilder *builder;
+	int i;
+	git_oid entry_oid, tree_oid;
+	git_tree *tree;
+
+	git_oid_fromstr(&entry_oid, blob_oid);
+
+	cl_git_pass(git_treebuilder_new(&builder, g_repo, NULL));
+
+	for (i = 0; _entries[i].filename; ++i)
+		cl_git_pass(git_treebuilder_insert(NULL,
+			builder, _entries[i].filename, &entry_oid, _entries[i].attr));
+
+	cl_assert_equal_i(6, (int)git_treebuilder_entrycount(builder));
+
+	cl_assert(git_treebuilder_get(builder, "apple") != NULL);
+	cl_assert(git_treebuilder_get(builder, "aardvark") != NULL);
+	cl_assert(git_treebuilder_get(builder, "last") != NULL);
+
+	git_treebuilder_filter(builder, treebuilder_filter_prefixed, "apple");
+
+	cl_assert_equal_i(4, (int)git_treebuilder_entrycount(builder));
+
+	cl_assert(git_treebuilder_get(builder, "apple") == NULL);
+	cl_assert(git_treebuilder_get(builder, "aardvark") != NULL);
+	cl_assert(git_treebuilder_get(builder, "last") != NULL);
+
+	git_treebuilder_filter(builder, treebuilder_filter_prefixed, "a");
+
+	cl_assert_equal_i(2, (int)git_treebuilder_entrycount(builder));
+
+	cl_assert(git_treebuilder_get(builder, "aardvark") == NULL);
+	cl_assert(git_treebuilder_get(builder, "last") != NULL);
+
+	cl_git_pass(git_treebuilder_write(&tree_oid, builder));
+
+	git_treebuilder_free(builder);
+
+	cl_git_pass(git_tree_lookup(&tree, g_repo, &tree_oid));
+
+	cl_assert_equal_i(2, (int)git_tree_entrycount(tree));
+
+	git_tree_free(tree);
+}
+
+void test_object_tree_write__cruel_paths(void)
+{
+	static const char *the_paths[] = {
+		"C:\\",
+		" : * ? \" \n < > |",
+		"a\\b",
+		"\\\\b\a",
+		":\\",
+		"COM1",
+		"foo.aux",
+		REP1024("1234"), /* 4096 char string */
+		REP1024("12345678"), /* 8192 char string */
+		"\xC5\xAA\x6E\xC4\xAD\x63\xC5\x8D\x64\x65\xCC\xBD", /* Ūnĭcōde̽ */
+		NULL
+	};
+	git_treebuilder *builder;
+	git_tree *tree;
+	git_oid id, bid, subid;
+	const char **scan;
+	int count = 0, i, j;
+	git_tree_entry *te;
+
+	git_oid_fromstr(&bid, blob_oid);
+
+	/* create tree */
+	cl_git_pass(git_treebuilder_new(&builder, g_repo, NULL));
+	for (scan = the_paths; *scan; ++scan) {
+		cl_git_pass(git_treebuilder_insert(
+			NULL, builder, *scan, &bid, GIT_FILEMODE_BLOB));
+		count++;
+	}
+	cl_git_pass(git_treebuilder_write(&id, builder));
+	git_treebuilder_free(builder);
+
+	/* check data is correct */
+	cl_git_pass(git_tree_lookup(&tree, g_repo, &id));
+
+	cl_assert_equal_i(count, git_tree_entrycount(tree));
+
+	for (scan = the_paths; *scan; ++scan) {
+		const git_tree_entry *cte = git_tree_entry_byname(tree, *scan);
+		cl_assert(cte != NULL);
+		cl_assert_equal_s(*scan, git_tree_entry_name(cte));
+	}
+	for (scan = the_paths; *scan; ++scan) {
+		cl_git_pass(git_tree_entry_bypath(&te, tree, *scan));
+		cl_assert_equal_s(*scan, git_tree_entry_name(te));
+		git_tree_entry_free(te);
+	}
+
+	git_tree_free(tree);
+
+	/* let's try longer paths */
+	cl_git_pass(git_treebuilder_new(&builder, g_repo, NULL));
+	for (scan = the_paths; *scan; ++scan) {
+		cl_git_pass(git_treebuilder_insert(
+			NULL, builder, *scan, &id, GIT_FILEMODE_TREE));
+	}
+	cl_git_pass(git_treebuilder_write(&subid, builder));
+	git_treebuilder_free(builder);
+
+	/* check data is correct */
+	cl_git_pass(git_tree_lookup(&tree, g_repo, &subid));
+
+	cl_assert_equal_i(count, git_tree_entrycount(tree));
+
+	for (i = 0; i < count; ++i) {
+		for (j = 0; j < count; ++j) {
+			git_str b = GIT_STR_INIT;
+			cl_git_pass(git_str_joinpath(&b, the_paths[i], the_paths[j]));
+			cl_git_pass(git_tree_entry_bypath(&te, tree, b.ptr));
+			cl_assert_equal_s(the_paths[j], git_tree_entry_name(te));
+			git_tree_entry_free(te);
+			git_str_dispose(&b);
+		}
+	}
+
+	git_tree_free(tree);
+}
+
+void test_object_tree_write__protect_filesystems(void)
+{
+	git_treebuilder *builder;
+	git_oid bid;
+
+	cl_git_pass(git_oid_fromstr(&bid, "fa49b077972391ad58037050f2a75f74e3671e92"));
+
+	/* Ensure that (by default) we can write objects with funny names on
+	 * platforms that are not affected.
+	 */
+	cl_git_pass(git_treebuilder_new(&builder, g_repo, NULL));
+
+	cl_git_fail(git_treebuilder_insert(NULL, builder, ".git.", &bid, GIT_FILEMODE_BLOB));
+	cl_git_fail(git_treebuilder_insert(NULL, builder, "git~1", &bid, GIT_FILEMODE_BLOB));
+
+#ifndef __APPLE__
+	cl_git_pass(git_treebuilder_insert(NULL, builder, ".git\xef\xbb\xbf", &bid, GIT_FILEMODE_BLOB));
+	cl_git_pass(git_treebuilder_insert(NULL, builder, ".git\xe2\x80\xad", &bid, GIT_FILEMODE_BLOB));
+#endif
+
+	git_treebuilder_free(builder);
+
+	/* Now turn on core.protectHFS and core.protectNTFS and validate that these
+	 * paths are rejected.
+	 */
+
+	cl_repo_set_bool(g_repo, "core.protectHFS", true);
+	cl_repo_set_bool(g_repo, "core.protectNTFS", true);
+
+	cl_git_pass(git_treebuilder_new(&builder, g_repo, NULL));
+
+	cl_git_fail(git_treebuilder_insert(NULL, builder, ".git.", &bid, GIT_FILEMODE_BLOB));
+	cl_git_fail(git_treebuilder_insert(NULL, builder, "git~1", &bid, GIT_FILEMODE_BLOB));
+
+	cl_git_fail(git_treebuilder_insert(NULL, builder, ".git\xef\xbb\xbf", &bid, GIT_FILEMODE_BLOB));
+	cl_git_fail(git_treebuilder_insert(NULL, builder, ".git\xe2\x80\xad", &bid, GIT_FILEMODE_BLOB));
+	cl_git_fail(git_treebuilder_insert(NULL, builder, ".git::$INDEX_ALLOCATION/dummy-file", &bid, GIT_FILEMODE_BLOB));
+
+	git_treebuilder_free(builder);
+}
+
+static void test_invalid_objects(bool should_allow_invalid)
+{
+	git_treebuilder *builder;
+	git_oid valid_blob_id, invalid_blob_id, valid_tree_id, invalid_tree_id;
+
+#define assert_allowed(expr) \
+	clar__assert(!(expr) == should_allow_invalid, \
+		__FILE__, __func__, __LINE__, \
+		(should_allow_invalid ? \
+		 "Expected function call to succeed: " #expr : \
+		 "Expected function call to fail: " #expr), \
+		NULL, 1)
+
+	cl_git_pass(git_oid_fromstr(&valid_blob_id, blob_oid));
+	cl_git_pass(git_oid_fromstr(&invalid_blob_id,
+		"1234567890123456789012345678901234567890"));
+	cl_git_pass(git_oid_fromstr(&valid_tree_id, first_tree));
+	cl_git_pass(git_oid_fromstr(&invalid_tree_id,
+		"0000000000111111111122222222223333333333"));
+
+	cl_git_pass(git_treebuilder_new(&builder, g_repo, NULL));
+
+	/* test valid blobs and trees (these should always pass) */
+	cl_git_pass(git_treebuilder_insert(NULL, builder, "file.txt", &valid_blob_id, GIT_FILEMODE_BLOB));
+	cl_git_pass(git_treebuilder_insert(NULL, builder, "folder", &valid_tree_id, GIT_FILEMODE_TREE));
+
+	/* replace valid files and folders with invalid ones */
+	assert_allowed(git_treebuilder_insert(NULL, builder, "file.txt", &invalid_blob_id, GIT_FILEMODE_BLOB));
+	assert_allowed(git_treebuilder_insert(NULL, builder, "folder", &invalid_blob_id, GIT_FILEMODE_BLOB));
+
+	/* insert new invalid files and folders */
+	assert_allowed(git_treebuilder_insert(NULL, builder, "invalid_file.txt", &invalid_blob_id, GIT_FILEMODE_BLOB));
+	assert_allowed(git_treebuilder_insert(NULL, builder, "invalid_folder", &invalid_blob_id, GIT_FILEMODE_BLOB));
+
+	/* insert valid blobs as trees and trees as blobs */
+	assert_allowed(git_treebuilder_insert(NULL, builder, "file_as_folder", &valid_blob_id, GIT_FILEMODE_TREE));
+	assert_allowed(git_treebuilder_insert(NULL, builder, "folder_as_file.txt", &valid_tree_id, GIT_FILEMODE_BLOB));
+
+#undef assert_allowed
+
+	git_treebuilder_free(builder);
+}
+
+static void test_inserting_submodule(void)
+{
+	git_treebuilder *bld;
+	git_oid sm_id;
+
+	cl_git_pass(git_oid_fromstr(&sm_id, "da39a3ee5e6b4b0d3255bfef95601890afd80709"));
+	cl_git_pass(git_treebuilder_new(&bld, g_repo, NULL));
+	cl_git_pass(git_treebuilder_insert(NULL, bld, "sm", &sm_id, GIT_FILEMODE_COMMIT));
+	git_treebuilder_free(bld);
+}
+
+void test_object_tree_write__object_validity(void)
+{
+	/* Ensure that we cannot add invalid objects by default */
+	test_invalid_objects(false);
+	test_inserting_submodule();
+
+	/* Ensure that we can turn off validation */
+	cl_git_pass(git_libgit2_opts(GIT_OPT_ENABLE_STRICT_OBJECT_CREATION, 0));
+	test_invalid_objects(true);
+	test_inserting_submodule();
+}
+
+void test_object_tree_write__invalid_null_oid(void)
+{
+	git_treebuilder *bld;
+	git_oid null_oid = {{0}};
+
+	cl_git_pass(git_treebuilder_new(&bld, g_repo, NULL));
+	cl_git_fail(git_treebuilder_insert(NULL, bld, "null_oid_file", &null_oid, GIT_FILEMODE_BLOB));
+	cl_assert(git_error_last() && strstr(git_error_last()->message, "null OID") != NULL);
+
+	git_treebuilder_free(bld);
+}
diff --git a/tests/libgit2/object/validate.c b/tests/libgit2/object/validate.c
new file mode 100644
index 000000000..87193deb6
--- /dev/null
+++ b/tests/libgit2/object/validate.c
@@ -0,0 +1,50 @@
+#include "clar_libgit2.h"
+
+#define VALID_COMMIT "tree bdd24e358576f1baa275df98cdcaf3ac9a3f4233\n" \
+               "parent d6d956f1d66210bfcd0484166befab33b5987a39\n" \
+               "author Edward Thomson <ethomson@edwardthomson.com> 1638286404 -0500\n" \
+               "committer Edward Thomson <ethomson@edwardthomson.com> 1638324642 -0500\n" \
+               "\n" \
+               "commit go here.\n"
+#define VALID_TREE "100644 HEADER\0\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
+
+#define INVALID_COMMIT "tree bdd24e358576f1baa275df98cdcaf3ac9a3f4233\n" \
+               "parent d6d956f1d66210bfcd0484166befab33b5987a39\n" \
+               "committer Edward Thomson <ethomson@edwardthomson.com> 1638324642 -0500\n" \
+               "\n" \
+               "commit go here.\n"
+#define INVALID_TREE "100644 HEADER \x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42\x42"
+
+void test_object_validate__valid(void)
+{
+	int valid;
+
+	cl_git_pass(git_object_rawcontent_is_valid(&valid, "", 0, GIT_OBJECT_BLOB));
+	cl_assert_equal_i(1, valid);
+
+	cl_git_pass(git_object_rawcontent_is_valid(&valid, "foobar", 0, GIT_OBJECT_BLOB));
+	cl_assert_equal_i(1, valid);
+
+	cl_git_pass(git_object_rawcontent_is_valid(&valid, VALID_COMMIT, CONST_STRLEN(VALID_COMMIT), GIT_OBJECT_COMMIT));
+	cl_assert_equal_i(1, valid);
+
+	cl_git_pass(git_object_rawcontent_is_valid(&valid, VALID_TREE, CONST_STRLEN(VALID_TREE), GIT_OBJECT_TREE));
+	cl_assert_equal_i(1, valid);
+}
+
+void test_object_validate__invalid(void)
+{
+	int valid;
+
+	cl_git_pass(git_object_rawcontent_is_valid(&valid, "", 0, GIT_OBJECT_COMMIT));
+	cl_assert_equal_i(0, valid);
+
+	cl_git_pass(git_object_rawcontent_is_valid(&valid, "foobar", 0, GIT_OBJECT_COMMIT));
+	cl_assert_equal_i(0, valid);
+
+	cl_git_pass(git_object_rawcontent_is_valid(&valid, INVALID_COMMIT, CONST_STRLEN(INVALID_COMMIT), GIT_OBJECT_COMMIT));
+	cl_assert_equal_i(0, valid);
+
+	cl_git_pass(git_object_rawcontent_is_valid(&valid, INVALID_TREE, CONST_STRLEN(INVALID_TREE), GIT_OBJECT_TREE));
+	cl_assert_equal_i(0, valid);
+}