def test_check_if_file_exists_returns_false_path_is_none(self, mock_exists, mock_isfile):
""" Test a valid invocation of API check_if_file_exists """
# arrange
file_path = None
# act
result = Utils.check_if_file_exists(file_path)
# assert
mock_exists.assert_not_called()
mock_isfile.assert_not_called()
self.assertFalse(result)
def test_check_if_file_exists_returns_true(self, mock_exists, mock_isfile):
""" Test a valid invocation of API check_if_file_exists """
# arrange #1
file_path = 'blah'
mock_exists.return_value = True
mock_isfile.return_value = True
# act
result = Utils.check_if_file_exists(file_path)
# assert
mock_exists.assert_called_with(file_path)
mock_isfile.assert_called_with(file_path)
self.assertTrue(result)