def test_lazy_values(self):
def resolver(id):
p = {'c': 3}
return p[id]
d = LazyDict()
self.assertEqual(set(d.values()), set())
d = LazyDict({1:2})
d.set_stub('c', resolver)
v = d.values()
self.assertEqual(set(v), {2,3})
self.assertRaises(TypeError, d.values, None)
def test_lazy_clear(self):
d = LazyDict({1:1, 2:2, 3:3})
d.set_stub(4, lambda x:x)
d.clear()
self.assertEqual(d, {})
self.assertEqual(set(d.keys()), set())
self.assertEqual(set(d.values()), set())
self.assertRaises(TypeError, d.clear, None)
def test_values(self):
d = LazyDict()
self.assertEqual(set(d.values()), set())
d = LazyDict({1:2})
self.assertEqual(set(d.values()), {2})
self.assertRaises(TypeError, d.values, None)
