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

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• Hash : 3d1c9f61
  Author :
  Date : 2013-05-09T06:45:06
  

  Fix git_repository_message docs This clarifies the docs for git_repository_message and also adds to the tests to explicitly check NUL termination of data when the output buffer is smaller than the message size. There is a minor behavior change so that a non-NULL output buffer will always be NUL terminated (at length zero) if an error occurs.

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• tests-clar/repo/message.c

• #include "clar_libgit2.h"
  #include "buffer.h"
  #include "refs.h"
  #include "posix.h"
  
  static git_repository *_repo;
  static git_buf _path;
  static char *_actual;
  
  void test_repo_message__initialize(void)
  {
          _repo = cl_git_sandbox_init("testrepo.git");
  }
  
  void test_repo_message__cleanup(void)
  {
          cl_git_sandbox_cleanup();
  	git_buf_free(&_path);
  	git__free(_actual);
  	_actual = NULL;
  }
  
  void test_repo_message__none(void)
  {
  	cl_assert_equal_i(GIT_ENOTFOUND, git_repository_message(NULL, 0, _repo));
  }
  
  void test_repo_message__message(void)
  {
  	const char expected[] = "Test\n\nThis is a test of the emergency broadcast system\n";
  	ssize_t len;
  
  	cl_git_pass(git_buf_joinpath(&_path, git_repository_path(_repo), "MERGE_MSG"));
  	cl_git_mkfile(git_buf_cstr(&_path), expected);
  
  	len = git_repository_message(NULL, 0, _repo);
  	cl_assert(len > 0);
  
  	_actual = git__malloc(len + 1);
  	cl_assert(_actual != NULL);
  
  	/* Test non truncation */
  	cl_assert(git_repository_message(_actual, len, _repo) > 0);
  	cl_assert_equal_s(expected, _actual);
  
  	/* Test truncation and that trailing NUL is inserted */
  	cl_assert(git_repository_message(_actual, 6, _repo) > 0);
  	cl_assert_equal_s("Test\n", _actual);
  
  	cl_git_pass(p_unlink(git_buf_cstr(&_path)));
  	cl_assert_equal_i(GIT_ENOTFOUND, git_repository_message(NULL, 0, _repo));
  }
  

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