def test_attr_passthrough(self):
class AConfig(Config):
first_name: str = Option(default='Foo')
class BConfig(Config):
last_name: str = Option(default='Bar')
with self.subTest('default'):
self.assertEqual(
ChainConfig(AConfig(), BConfig()).last_name, 'Bar')
with self.subTest('set'):
self.assertEqual(
ChainConfig(AConfig(), BConfig(last_name='Baz')).last_name,
'Baz')
def test_take_first_value(self):
class MyConfig(Config):
name: str = Option(default='Foo')
self.assertEqual(
ChainConfig(MyConfig({'name': 'Bar'}),
MyConfig({'name': 'Baz'})).name, 'Bar')
def test_attr_passthrough_ignores_invalid_default(self):
class AConfig(Config):
first_name: str = Option()
class BConfig(Config):
first_name: str = Option(default='Bar')
self.assertEqual(ChainConfig(AConfig(), BConfig()).first_name, 'Bar')
def test_take_first_default(self):
class AConfig(Config):
name: str = Option(default='Foo')
class BConfig(Config):
name: str = Option(default='Bar')
self.assertEqual(ChainConfig(AConfig(), BConfig()).name, 'Foo')
def test_invalid_default(self):
class AConfig(Config):
name: str = Option()
class BConfig(Config):
name: str = Option()
with self.assertRaises(AttributeError):
ChainConfig(AConfig(), BConfig()).name
def test_attr_passthrough_ignores_dictvalues(self):
class AConfig(Config):
first_name: str = Option(default='Foo')
class BConfig(Config):
last_name: str = Option(default='Bar')
self.assertEqual(
ChainConfig(AConfig(last_name='quux'),
BConfig(last_name='Baz')).last_name, 'Baz')
def test_attr_passthrough_ignores_attribute_error(self):
class AConfig(Config):
first_name: str = Option()
class BConfig(Config):
last_name: str = Option()
class CConfig(Config):
first_name: str = Option(default='Bar')
self.assertEqual(
ChainConfig(AConfig(), BConfig(), CConfig()).first_name, 'Bar')
def test_invalid_attr(self):
class MyConfig(Config):
name: str = Option(default='Foo')
with self.assertRaises(AttributeError):
ChainConfig(MyConfig()).last_name
def test_ignore_default(self):
class MyConfig(Config):
name: str = Option(default='Foo')
self.assertEqual(
ChainConfig(MyConfig(), MyConfig({'name': 'Baz'})).name, 'Baz')