1 files changed, 105 insertions, 0 deletions
diff --git a/tests/object/peel.c b/tests/object/peel.c
new file mode 100644
index 000000000..b6c9c7a3b
--- /dev/null
+++ b/tests/object/peel.c
@@ -0,0 +1,105 @@
+#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_otype requested_type,
+	const char* expected_sha,
+	git_otype 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_OBJ_ANY));
+	
+	cl_git_pass(git_object_peel(&peeled, obj, requested_type));
+
+	cl_git_pass(git_oid_fromstr(&expected_oid, expected_sha));
+	cl_assert_equal_i(0, git_oid_cmp(&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_otype 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_OBJ_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_OBJ_COMMIT,
+		"e90810b8df3e80c413d903f631643c716887138d", GIT_OBJ_COMMIT);
+	assert_peel("7b4384978d2493e851f9cca7858815fac9b10980", GIT_OBJ_TAG,
+		"7b4384978d2493e851f9cca7858815fac9b10980", GIT_OBJ_TAG);
+	assert_peel("53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJ_TREE,
+		"53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJ_TREE);
+	assert_peel("0266163a49e280c4f5ed1e08facd36a2bd716bcf", GIT_OBJ_BLOB,
+		"0266163a49e280c4f5ed1e08facd36a2bd716bcf", GIT_OBJ_BLOB);
+}
+
+void test_object_peel__can_peel_a_tag(void)
+{
+	assert_peel("7b4384978d2493e851f9cca7858815fac9b10980", GIT_OBJ_COMMIT,
+		"e90810b8df3e80c413d903f631643c716887138d", GIT_OBJ_COMMIT);
+	assert_peel("7b4384978d2493e851f9cca7858815fac9b10980", GIT_OBJ_TREE,
+		"53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJ_TREE);
+}
+
+void test_object_peel__can_peel_a_commit(void)
+{
+	assert_peel("e90810b8df3e80c413d903f631643c716887138d", GIT_OBJ_TREE,
+		"53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJ_TREE);
+}
+
+void test_object_peel__cannot_peel_a_tree(void)
+{
+	assert_peel_error(GIT_EAMBIGUOUS, "53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJ_BLOB);
+}
+
+void test_object_peel__cannot_peel_a_blob(void)
+{
+	assert_peel_error(GIT_ENOTFOUND, "0266163a49e280c4f5ed1e08facd36a2bd716bcf", GIT_OBJ_COMMIT);
+}
+
+void test_object_peel__target_any_object_for_type_change(void)
+{
+	/* tag to commit */
+	assert_peel("7b4384978d2493e851f9cca7858815fac9b10980", GIT_OBJ_ANY,
+		"e90810b8df3e80c413d903f631643c716887138d", GIT_OBJ_COMMIT);
+
+	/* commit to tree */
+	assert_peel("e90810b8df3e80c413d903f631643c716887138d", GIT_OBJ_ANY,
+		"53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJ_TREE);
+
+	/* fail to peel tree */
+	assert_peel_error(GIT_EAMBIGUOUS, "53fc32d17276939fc79ed05badaef2db09990016", GIT_OBJ_ANY);
+
+	/* fail to peel blob */
+	assert_peel_error(GIT_ENOTFOUND, "0266163a49e280c4f5ed1e08facd36a2bd716bcf", GIT_OBJ_ANY);
+}