def test_lazy_dictionary(self):
"""Checks content of lazy dictionary and number of evaluations."""
populate = CallCounter(lambda: {'foo': 'bar', 1: 11, 'empty': None})
lazy_dict = LazyDict(populate)
self.assertEqual(populate.counter, 0)
self.assertEqual(lazy_dict['foo'], 'bar')
self.assertEqual(populate.counter, 1)
self.assertEqual(lazy_dict[1], 11)
self.assertEqual(populate.counter, 1)
self.assertEqual(lazy_dict['empty'], None)
self.assertEqual(populate.counter, 1)
# clear the cache
lazy_dict.expunge()
self.assertEqual(lazy_dict['foo'], 'bar')
self.assertEqual(populate.counter, 2)
del lazy_dict['foo']
self.assertEqual(populate.counter, 2)
assert 'foo' not in lazy_dict
def test_lazy_dictionary(self):
"""Checks content of lazy dictionary and number of evaluations."""
populate = CallCounter(lambda: {'foo': 'bar', 1: 11, 'empty': None})
lazy_dict = LazyDict(populate)
self.assertEqual(populate.counter, 0)
self.assertEqual(lazy_dict['foo'], 'bar')
self.assertEqual(populate.counter, 1)
self.assertEqual(lazy_dict[1], 11)
self.assertEqual(populate.counter, 1)
self.assertEqual(lazy_dict['empty'], None)
self.assertEqual(populate.counter, 1)
# clear the cache
lazy_dict.expunge()
self.assertEqual(lazy_dict['foo'], 'bar')
self.assertEqual(populate.counter, 2)
del lazy_dict['foo']
self.assertEqual(populate.counter, 2)
assert 'foo' not in lazy_dict
