def test_should_return_nothing_when_no_error_in_log(self, mock_open):
mock_open.return_value = MagicMock(spec=file)
mock_readlines_function = mock_open.return_value.__enter__.return_value.readlines
mock_readlines_function.return_value = ["DEBUG: Some stuff",
"INFO: Other stuff"]
self.assertEquals(
first_error_line("/foo/bar"),
None
)
def test_should_return_first_error_line(self, mock_open):
mock_open.return_value = MagicMock(spec=file)
mock_readlines_function = mock_open.return_value.__enter__.return_value.readlines
mock_readlines_function.return_value = ["DEBUG: Some stuff",
"INFO: Other stuff",
"<a timestamp> ERROR: WTF happened",
"DEBUG: debug output after an error"]
self.assertEquals(
first_error_line("/foo/bar"),
"<a timestamp> ERROR: WTF happened"
)
def test_should_return_nothing_when_logging_is_not_enabled(self):
self.assertEquals(first_error_line(None), "")
