1 files changed, 119 insertions, 0 deletions
diff --git a/tests/object/blob/fromchunks.c b/tests/object/blob/fromchunks.c
new file mode 100644
index 000000000..03ed4efb4
--- /dev/null
+++ b/tests/object/blob/fromchunks.c
@@ -0,0 +1,119 @@
+#include "clar_libgit2.h"
+#include "buffer.h"
+#include "posix.h"
+#include "path.h"
+#include "fileops.h"
+
+static git_repository *repo;
+static char textual_content[] = "libgit2\n\r\n\0";
+
+void test_object_blob_fromchunks__initialize(void)
+{
+	repo = cl_git_sandbox_init("testrepo.git");
+}
+
+void test_object_blob_fromchunks__cleanup(void)
+{
+	cl_git_sandbox_cleanup();
+}
+
+static int text_chunked_source_cb(char *content, size_t max_length, void *payload)
+{
+	int *count;
+
+	GIT_UNUSED(max_length);
+
+	count = (int *)payload;
+	(*count)--;
+
+	if (*count == 0)
+		return 0;
+
+	strcpy(content, textual_content);
+	return (int)strlen(textual_content);
+}
+
+void test_object_blob_fromchunks__can_create_a_blob_from_a_in_memory_chunk_provider(void)
+{
+	git_oid expected_oid, oid;
+	git_object *blob;
+	int howmany = 7;
+
+	cl_git_pass(git_oid_fromstr(&expected_oid, "321cbdf08803c744082332332838df6bd160f8f9"));
+
+	cl_git_fail_with(
+		git_object_lookup(&blob, repo, &expected_oid, GIT_OBJ_ANY),
+		GIT_ENOTFOUND);
+
+	cl_git_pass(git_blob_create_fromchunks(&oid, repo, NULL, text_chunked_source_cb, &howmany));
+
+	cl_git_pass(git_object_lookup(&blob, repo, &expected_oid, GIT_OBJ_ANY));
+	cl_assert(git_oid_cmp(&expected_oid, git_object_id(blob)) == 0);
+
+	git_object_free(blob);
+}
+
+void test_object_blob_fromchunks__doesnot_overwrite_an_already_existing_object(void)
+{
+	git_buf path = GIT_BUF_INIT;
+	git_buf content = GIT_BUF_INIT;
+	git_oid expected_oid, oid;
+	int howmany = 7;
+	
+	cl_git_pass(git_oid_fromstr(&expected_oid, "321cbdf08803c744082332332838df6bd160f8f9"));
+
+	cl_git_pass(git_blob_create_fromchunks(&oid, repo, NULL, text_chunked_source_cb, &howmany));
+
+	/* Let's replace the content of the blob file storage with something else... */
+	cl_git_pass(git_buf_joinpath(&path, git_repository_path(repo), "objects/32/1cbdf08803c744082332332838df6bd160f8f9"));
+	cl_git_pass(p_unlink(git_buf_cstr(&path)));
+	cl_git_mkfile(git_buf_cstr(&path), "boom");
+
+	/* ...request a creation of the same blob... */
+	howmany = 7;
+	cl_git_pass(git_blob_create_fromchunks(&oid, repo, NULL, text_chunked_source_cb, &howmany));
+
+	/* ...and ensure the content of the faked blob file hasn't been altered */
+	cl_git_pass(git_futils_readbuffer(&content, git_buf_cstr(&path)));
+	cl_assert(!git__strcmp("boom", git_buf_cstr(&content)));
+
+	git_buf_free(&path);
+	git_buf_free(&content);
+}
+
+#define GITATTR "* text=auto\n" \
+	"*.txt text\n" \
+	"*.data binary\n"
+
+static void write_attributes(git_repository *repo)
+{
+	git_buf buf = GIT_BUF_INIT;
+
+	cl_git_pass(git_buf_joinpath(&buf, git_repository_path(repo), "info"));
+	cl_git_pass(git_buf_joinpath(&buf, git_buf_cstr(&buf), "attributes"));
+
+	cl_git_pass(git_futils_mkpath2file(git_buf_cstr(&buf), 0777));
+	cl_git_rewritefile(git_buf_cstr(&buf), GITATTR);
+
+	git_buf_free(&buf);
+}
+
+static void assert_named_chunked_blob(const char *expected_sha, const char *fake_name)
+{
+	git_oid expected_oid, oid;
+	int howmany = 7;
+
+	cl_git_pass(git_oid_fromstr(&expected_oid, expected_sha));
+
+	cl_git_pass(git_blob_create_fromchunks(&oid, repo, fake_name, text_chunked_source_cb, &howmany));
+	cl_assert(git_oid_cmp(&expected_oid, &oid) == 0);
+}
+
+void test_object_blob_fromchunks__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");
+}