def test_init(self):
# should only allow things that can be mapped (e.g. dictionary)
# and that have a copy() function
with self.assertRaises(AssertionError):
x = ro_types.ReadOnlyDict([])
# should work with a dictionary
x = ro_types.ReadOnlyDict({'a': 1, 'b': 2})
# should work with an OrderedDict
x = ro_types.ReadOnlyDict(collections.OrderedDict([('a', 1),
('b', 2)]))
# check that the data is copied
b = {'a': 1}
x = ro_types.ReadOnlyDict(b)
b['a'] = 2
self.assertEqual(x['a'], 1)
def test_serialize(self):
x = ro_types.ReadOnlyDict({'a': 1})
self.assertEqual(x.__serialize__(), {'a': 1})
def test_iter(self):
x = ro_types.ReadOnlyDict(collections.OrderedDict([('a', 1),
('b', 5)]))
self.assertEqual(list(iter(x)), ['a', 'b'])
def test_setitem(self):
x = ro_types.ReadOnlyDict({'a': 1, 'b': 5})
with self.assertRaises(TypeError):
x['c'] = 1
def test_setattr(self):
x = ro_types.ReadOnlyDict({'a': 1, 'b': 5})
with self.assertRaises(TypeError):
x.c = 1
def test_getattr(self):
x = ro_types.ReadOnlyDict({'a': 1, 'b': 5})
self.assertEqual(x.a, 1)
self.assertEqual(x.b, 5)
with self.assertRaises(KeyError):
x.c
def test_getitem(self):
x = ro_types.ReadOnlyDict({'a': 1, 'b': 5})
self.assertEqual(x['a'], 1)
self.assertEqual(x['b'], 5)
with self.assertRaises(KeyError):
x['c']