thodg/libgit2/tests/core/assert.c

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• Hash : abe2efe1
  Author :
  Date : 2019-12-09T12:37:34
  

  Introduce GIT_ASSERT macros
  
  Provide macros to replace usages of `assert`.  A true `assert` is
  punishing as a library.  Instead we should do our best to not crash.
  
  GIT_ASSERT_ARG(x) will now assert that the given argument complies to
  some format and sets an error message and returns `-1` if it does not.
  
  GIT_ASSERT(x) is for internal usage, and available as an internal
  consistency check.  It will set an error message and return `-1` in the
  event of failure.
  

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• tests/core/assert.c

• #include "clar_libgit2.h"
  
  static const char *hello_world = "hello, world";
  
  static int dummy_fn(const char *myarg)
  {
  	GIT_ASSERT_ARG(myarg);
  	GIT_ASSERT_ARG(myarg != hello_world);
  	return 0;
  }
  
  static int bad_math(void)
  {
  	GIT_ASSERT(1 + 1 == 3);
  	return 42;
  }
  
  void test_core_assert__argument(void)
  {
  	cl_git_fail(dummy_fn(NULL));
  	cl_assert(git_error_last());
  	cl_assert_equal_i(GIT_ERROR_INVALID, git_error_last()->klass);
  	cl_assert_equal_s("invalid argument: 'myarg'", git_error_last()->message);
  
  	cl_git_fail(dummy_fn(hello_world));
  	cl_assert(git_error_last());
  	cl_assert_equal_i(GIT_ERROR_INVALID, git_error_last()->klass);
  	cl_assert_equal_s("invalid argument: 'myarg != hello_world'", git_error_last()->message);
  
  	cl_git_pass(dummy_fn("foo"));
  }
  
  void test_core_assert__internal(void)
  {
  	cl_git_fail(bad_math());
  	cl_assert(git_error_last());
  	cl_assert_equal_i(GIT_ERROR_INTERNAL, git_error_last()->klass);
  	cl_assert_equal_s("unrecoverable internal error: '1 + 1 == 3'", git_error_last()->message);
  }
  

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