def test_type_checker__custom_types(self):
Cls = type('Cls', (object,), {})
is_Cls = Field.type_checker(Cls)
self.assertTrue(is_Cls(Cls()))
self.assertFalse(is_Cls(1))
Cls2 = type('Cls2', (Cls,), {})
is_Cls2 = Field.type_checker(Cls)
self.assertTrue(is_Cls2(Cls2()))
self.assertTrue(is_Cls2(Cls()))
self.assertFalse(is_Cls2(1))
def test_type_checker__subclass(self):
is_str = Field.type_checker(str)
self.assertFalse(is_str(u'sample'))
is_basestr = Field.type_checker(basestring)
self.assertTrue(is_basestr(u'sample'))
def test_type_checker(self):
is_int = Field.type_checker(int)
self.assertTrue(is_int(1), 'int type checker fails')
self.assertTrue(is_int(1), 'getting another int type checker fails')
