def test_keyword_arguments_equality_and_get_method(self):
d = FancyDict(a=2, b=3, c=4, d=5)
self.assertEqual(d.a, 2)
self.assertEqual(d.b, 3)
self.assertEqual(d['c'], 4)
self.assertEqual(d['d'], 5)
x = FancyDict({'a': 2, 'b': 3})
y = FancyDict({'a': 2, 'b': 4})
self.assertNotEqual(x, y)
y.b = 3
self.assertEqual(x, y)
x.c = 5
self.assertNotEqual(x, y)
y.c = 5
self.assertEqual(x, y)
self.assertIsNone(y.get('d'))
self.assertEqual(y.get('c'), 5)
self.assertEqual(y.get('d', 5), 5)
def test_allow_setting_keys_and_attributes(self):
d = FancyDict({'a': 2, 'b': 3})
d['a'] = 4
self.assertEqual(d['a'], 4)
self.assertEqual(d.a, 4)
d.c = 9
self.assertEqual(d['c'], 9)
self.assertEqual(d.c, 9)
self.assertEqual(d['b'], 3)
x = FancyDict()
y = FancyDict()
x.a = 4
y.a = 5
self.assertEqual(x.a, 4)
def test_original_dictionary_unchanged(self):
mapping = {'a': 2, 'b': 3}
d = FancyDict(mapping)
d.c = 4
self.assertEqual(mapping, {'a': 2, 'b': 3})