def test_bad_values(self):
for file_name in "141302 alma140211 141132 141131".split():
with self.assertRaises(AssertionError):
gadgets.date_string(file_name)
def test_known_values(self):
for file_name, date_string in self.known_values:
self.assertEqual(gadgets.date_string(file_name), date_string)
