thodg/libgit2/tests-clar/commit/parent.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/commit/parent.c

• #include "clar_libgit2.h"
  
  static git_repository *_repo;
  static git_commit *commit;
  
  void test_commit_parent__initialize(void)
  {
  	git_oid oid;
  
  	cl_git_pass(git_repository_open(&_repo, cl_fixture("testrepo.git")));
  
  	git_oid_fromstr(&oid, "be3563ae3f795b2b4353bcce3a527ad0a4f7f644");
  	cl_git_pass(git_commit_lookup(&commit, _repo, &oid));
  }
  
  void test_commit_parent__cleanup(void)
  {
  	git_commit_free(commit);
  	commit = NULL;
  
  	git_repository_free(_repo);
  	_repo = NULL;
  }
  
  static void assert_nth_gen_parent(unsigned int gen, const char *expected_oid)
  {
  	git_commit *parent = NULL;
  	int error;
  	
  	error = git_commit_nth_gen_ancestor(&parent, commit, gen);
  
  	if (expected_oid != NULL) {
  		cl_assert_equal_i(0, error);
  		cl_assert_equal_i(0, git_oid_streq(git_commit_id(parent), expected_oid));
  	} else
  		cl_assert_equal_i(GIT_ENOTFOUND, error);
  
  	git_commit_free(parent);
  }
  
  /*
   * $ git show be35~0
   * commit be3563ae3f795b2b4353bcce3a527ad0a4f7f644
   *
   * $ git show be35~1
   * commit 9fd738e8f7967c078dceed8190330fc8648ee56a
   *
   * $ git show be35~3
   * commit 5b5b025afb0b4c913b4c338a42934a3863bf3644
   *
   * $ git show be35~42
   * fatal: ambiguous argument 'be35~42': unknown revision or path not in the working tree.
   */
  void test_commit_parent__can_retrieve_nth_generation_parent(void)
  {
  	assert_nth_gen_parent(0, "be3563ae3f795b2b4353bcce3a527ad0a4f7f644");
  	assert_nth_gen_parent(1, "9fd738e8f7967c078dceed8190330fc8648ee56a");
  	assert_nth_gen_parent(3, "5b5b025afb0b4c913b4c338a42934a3863bf3644");
  	assert_nth_gen_parent(42, NULL);
  }
  

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