1 files changed, 196 insertions, 0 deletions
diff --git a/tests/repo/head.c b/tests/repo/head.c
new file mode 100644
index 000000000..5a55984bd
--- /dev/null
+++ b/tests/repo/head.c
@@ -0,0 +1,196 @@
+#include "clar_libgit2.h"
+#include "refs.h"
+#include "repo_helpers.h"
+#include "posix.h"
+
+static git_repository *repo;
+
+void test_repo_head__initialize(void)
+{
+	repo = cl_git_sandbox_init("testrepo.git");
+}
+
+void test_repo_head__cleanup(void)
+{
+	cl_git_sandbox_cleanup();
+}
+
+void test_repo_head__head_detached(void)
+{
+	git_reference *ref;
+
+	cl_git_pass(git_repository_head_detached(repo));
+
+	cl_git_pass(git_repository_detach_head(repo));
+
+	cl_assert_equal_i(true, git_repository_head_detached(repo));
+
+	/* take the reop back to it's original state */
+	cl_git_pass(git_reference_symbolic_create(&ref, repo, "HEAD", "refs/heads/master", 1));
+	git_reference_free(ref);
+
+	cl_assert_equal_i(false, git_repository_head_detached(repo));
+}
+
+void test_repo_head__unborn_head(void)
+{
+	git_reference *ref;
+
+	cl_git_pass(git_repository_head_detached(repo));
+
+	make_head_unborn(repo, NON_EXISTING_HEAD);
+
+	cl_assert(git_repository_head_unborn(repo) == 1);
+
+
+	/* take the repo back to it's original state */
+	cl_git_pass(git_reference_symbolic_create(&ref, repo, "HEAD", "refs/heads/master", 1));
+	cl_assert(git_repository_head_unborn(repo) == 0);
+
+	git_reference_free(ref);
+}
+
+void test_repo_head__set_head_Attaches_HEAD_to_un_unborn_branch_when_the_branch_doesnt_exist(void)
+{
+	git_reference *head;
+
+	cl_git_pass(git_repository_set_head(repo, "refs/heads/doesnt/exist/yet"));
+
+	cl_assert_equal_i(false, git_repository_head_detached(repo));
+
+	cl_assert_equal_i(GIT_EUNBORNBRANCH, git_repository_head(&head, repo));
+}
+
+void test_repo_head__set_head_Returns_ENOTFOUND_when_the_reference_doesnt_exist(void)
+{
+	cl_assert_equal_i(GIT_ENOTFOUND, git_repository_set_head(repo, "refs/tags/doesnt/exist/yet"));
+}
+
+void test_repo_head__set_head_Fails_when_the_reference_points_to_a_non_commitish(void)
+{
+	cl_git_fail(git_repository_set_head(repo, "refs/tags/point_to_blob"));
+}
+
+void test_repo_head__set_head_Attaches_HEAD_when_the_reference_points_to_a_branch(void)
+{
+	git_reference *head;
+
+	cl_git_pass(git_repository_set_head(repo, "refs/heads/br2"));
+
+	cl_assert_equal_i(false, git_repository_head_detached(repo));
+
+	cl_git_pass(git_repository_head(&head, repo));
+	cl_assert_equal_s("refs/heads/br2", git_reference_name(head));
+
+	git_reference_free(head);
+}
+
+static void assert_head_is_correctly_detached(void)
+{
+	git_reference *head;
+	git_object *commit;
+
+	cl_assert_equal_i(true, git_repository_head_detached(repo));
+
+	cl_git_pass(git_repository_head(&head, repo));
+
+	cl_git_pass(git_object_lookup(&commit, repo, git_reference_target(head), GIT_OBJ_COMMIT));
+
+	git_object_free(commit);
+	git_reference_free(head);
+}
+
+void test_repo_head__set_head_Detaches_HEAD_when_the_reference_doesnt_point_to_a_branch(void)
+{
+	cl_git_pass(git_repository_set_head(repo, "refs/tags/test"));
+
+	cl_assert_equal_i(true, git_repository_head_detached(repo));
+
+	assert_head_is_correctly_detached();
+}
+
+void test_repo_head__set_head_detached_Return_ENOTFOUND_when_the_object_doesnt_exist(void)
+{
+	git_oid oid;
+
+	cl_git_pass(git_oid_fromstr(&oid, "deadbeefdeadbeefdeadbeefdeadbeefdeadbeef"));
+
+	cl_assert_equal_i(GIT_ENOTFOUND, git_repository_set_head_detached(repo, &oid));
+}
+
+void test_repo_head__set_head_detached_Fails_when_the_object_isnt_a_commitish(void)
+{
+	git_object *blob;
+
+	cl_git_pass(git_revparse_single(&blob, repo, "point_to_blob"));
+
+	cl_git_fail(git_repository_set_head_detached(repo, git_object_id(blob)));
+
+	git_object_free(blob);
+}
+
+void test_repo_head__set_head_detached_Detaches_HEAD_and_make_it_point_to_the_peeled_commit(void)
+{
+	git_object *tag;
+
+	cl_git_pass(git_revparse_single(&tag, repo, "tags/test"));
+	cl_assert_equal_i(GIT_OBJ_TAG, git_object_type(tag));
+
+	cl_git_pass(git_repository_set_head_detached(repo, git_object_id(tag)));
+
+	assert_head_is_correctly_detached();
+
+	git_object_free(tag);
+}
+
+void test_repo_head__detach_head_Detaches_HEAD_and_make_it_point_to_the_peeled_commit(void)
+{
+	cl_assert_equal_i(false, git_repository_head_detached(repo));
+
+	cl_git_pass(git_repository_detach_head(repo));
+
+	assert_head_is_correctly_detached();
+}
+
+void test_repo_head__detach_head_Fails_if_HEAD_and_point_to_a_non_commitish(void)
+{
+	git_reference *head;
+
+	cl_git_pass(git_reference_symbolic_create(&head, repo, GIT_HEAD_FILE, "refs/tags/point_to_blob", 1));
+
+	cl_git_fail(git_repository_detach_head(repo));
+
+	git_reference_free(head);
+}
+
+void test_repo_head__detaching_an_unborn_branch_returns_GIT_EUNBORNBRANCH(void)
+{
+	make_head_unborn(repo, NON_EXISTING_HEAD);
+
+	cl_assert_equal_i(GIT_EUNBORNBRANCH, git_repository_detach_head(repo));
+}
+
+void test_repo_head__retrieving_an_unborn_branch_returns_GIT_EUNBORNBRANCH(void)
+{
+	git_reference *head;
+
+	make_head_unborn(repo, NON_EXISTING_HEAD);
+
+	cl_assert_equal_i(GIT_EUNBORNBRANCH, git_repository_head(&head, repo));
+}
+
+void test_repo_head__retrieving_a_missing_head_returns_GIT_ENOTFOUND(void)
+{
+	git_reference *head;
+
+	delete_head(repo);
+
+	cl_assert_equal_i(GIT_ENOTFOUND, git_repository_head(&head, repo));
+}
+
+void test_repo_head__can_tell_if_an_unborn_head_is_detached(void)
+{
+	make_head_unborn(repo, NON_EXISTING_HEAD);
+
+	cl_assert_equal_i(false, git_repository_head_detached(repo));
+}