thodg/libgit2/tests-clar/repo/head.c

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• Hash : 9094d30b
  Author :
  Date : 2012-11-23T11:41:56
  

  Reset all static variables to NULL in clar's __cleanup
  
  Without this change, any failed assertion in the second (or a later) test
  inside a test suite has a chance of double deleting memory, resulting in
  a heap corruption. See #1096 for details.
  
  This leaves alone the test cases where we "just" use cl_git_sandbox_init()
  and cl_git_sandbox_cleanup(). These methods already take good care to not
  double delete a repository.
  
  Fixes #1096
  

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• tests-clar/repo/head.c

• #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_create_symbolic(&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__head_orphan(void)
  {
  	git_reference *ref;
  
  	cl_git_pass(git_repository_head_detached(repo));
  
  	make_head_orphaned(repo, NON_EXISTING_HEAD);
  
  	cl_assert(git_repository_head_orphan(repo) == 1);
  
  
  	/* take the repo back to it's original state */
  	cl_git_pass(git_reference_create_symbolic(&ref, repo, "HEAD", "refs/heads/master", 1));
  	cl_assert(git_repository_head_orphan(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_EORPHANEDHEAD, 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_oid(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_create_symbolic(&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_orphaned_head_returns_GIT_EORPHANEDHEAD(void)
  {
  	make_head_orphaned(repo, NON_EXISTING_HEAD);
  
  	cl_assert_equal_i(GIT_EORPHANEDHEAD, git_repository_detach_head(repo));
  }
  
  void test_repo_head__retrieving_an_orphaned_head_returns_GIT_EORPHANEDHEAD(void)
  {
  	git_reference *head;
  
  	make_head_orphaned(repo, NON_EXISTING_HEAD);
  
  	cl_assert_equal_i(GIT_EORPHANEDHEAD, 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_orphaned_head_is_detached(void)
  {
  	make_head_orphaned(repo, NON_EXISTING_HEAD);
  
  	cl_assert_equal_i(false, git_repository_head_detached(repo));
  }
  

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