def test_check_value_none_found(self) -> None:
f = PropertiesFile()
with self.assertRaises(PropertiesFile.UnexpectedKeyValueError) as err:
f.check_value("invalid", "value")
self.assertEqual(
str(err.exception),
"Expected to have invalid='value', but none was found.")
def test_check_value_invalid(self) -> None:
f = PropertiesFile({"key": "value"})
with self.assertRaises(PropertiesFile.UnexpectedKeyValueError) as err:
f.check_value("key", "invalid")
self.assertEqual(str(err.exception),
"Expected to have key='invalid', but was 'value'.")
def test_check_value(self) -> None:
f = PropertiesFile({"key": "value"})
f.check_value("key", "value")