def test_construction_from_ddict(self):
d = ddict(ddict({'a': 1, 'b': 2}))
self.assertEqual(len(d), 2)
self.assertEqual(d.a, 1)
self.assertEqual(d.b, 2)
self.assertEqual(d['a'], 1)
self.assertEqual(d['b'], 2)
def test_iter(self):
result = {}
for k, v in ddict(a=1, b=2):
result[k] = v
self.assertDictEqual(result, {'a': 1, 'b': 2})
result = {}
for k, v in ddict(a=1, b=2).items():
result[k] = v
self.assertDictEqual(result, {'a': 1, 'b': 2})
def test_del(self):
d = ddict(a=1, b=2)
self.assertEqual(len(d), 2)
del d.a
self.assertEqual(len(d), 1)
del d['b']
self.assertEqual(len(d), 0)
def test_construction_from_kwargs(self):
d = ddict(a=1, b=2)
self.assertEqual(len(d), 2)
self.assertEqual(d.a, 1)
self.assertEqual(d.b, 2)
self.assertEqual(d['a'], 1)
self.assertEqual(d['b'], 2)
def test_construction_from_iterable(self):
d = ddict({'a': 1, 'b': 2}.items())
self.assertEqual(len(d), 2)
self.assertEqual(d.a, 1)
self.assertEqual(d.b, 2)
self.assertEqual(d['a'], 1)
self.assertEqual(d['b'], 2)
def test_construction_from_iterable_and_kwargs(self):
d = ddict((('c', 3), ), a=1, b=2)
self.assertEqual(len(d), 3)
self.assertEqual(d.a, 1)
self.assertEqual(d.b, 2)
self.assertEqual(d.c, 3)
self.assertEqual(d['a'], 1)
self.assertEqual(d['b'], 2)
self.assertEqual(d['c'], 3)
def test_construction_from_dict_and_kwargs(self):
d = ddict({'c': 3}, a=1, b=2)
self.assertEqual(len(d), 3)
self.assertEqual(d.a, 1)
self.assertEqual(d.b, 2)
self.assertEqual(d.c, 3)
self.assertEqual(d['a'], 1)
self.assertEqual(d['b'], 2)
self.assertEqual(d['c'], 3)
def test_equality(self):
a, b = ddict(a=1, b=2), dict(a=1, b=2)
self.assertTrue(a == b)
self.assertEqual(a, b)
self.assertEqual(a, b)
a, b = ddict(b=2, a=1), dict(a=1, b=2)
self.assertTrue(a == b)
self.assertEqual(a, b)
self.assertEqual(a, b)
a, b = ddict(b=2, a=1, c=3), dict(a=1, b=2)
self.assertTrue(a != b)
self.assertNotEqual(a, b)
self.assertNotEqual(a, b)
a, b = ddict(b=2, a=3), dict(a=1, b=2)
self.assertTrue(a != b)
self.assertNotEqual(a, b)
self.assertNotEqual(a, b)
def test_add_operator(self):
a, b = ddict(b=2, a=1, c=3), dict(a=2, b=3)
with self.assertRaises(TypeError):
c = a + 1
c = a + b
self.assertDictEqual(c, dict(a=2, b=3, c=3))
b2 = dict(z=4)
c = a + b2
self.assertDictEqual(a, dict(a=1, b=2, c=3))
self.assertDictEqual(b2, dict(z=4))
self.assertDictEqual(c, dict(a=1, b=2, c=3, z=4))
def test_nonexistent_key(self):
d = ddict(a=1)
self.assertTrue(d.b is undefined)