test_dep_util.py 文件源码

def test_newer(self):

        tmpdir = self.mkdtemp()
        new_file = os.path.join(tmpdir, 'new')
        old_file = os.path.abspath(__file__)

        # Raise DistutilsFileError if 'new_file' does not exist.
        self.assertRaises(DistutilsFileError, newer, new_file, old_file)

        # Return true if 'new_file' exists and is more recently modified than
        # 'old_file', or if 'new_file' exists and 'old_file' doesn't.
        self.write_file(new_file)
        self.assertTrue(newer(new_file, 'I_dont_exist'))
        self.assertTrue(newer(new_file, old_file))

        # Return false if both exist and 'old_file' is the same age or younger
        # than 'new_file'.
        self.assertFalse(newer(old_file, new_file))