def test_do_invalidate(self):
s = Storage()
object = 'object'
object2 = 'object2'
key = ('view', (), ('answer', 41))
key2 = ('view2', (), ('answer', 42))
value = 'yes'
ts = time()
s._data = {object: {key: [value, ts, 0],
key2: [value, ts, 0]},
object2: {key: [value, ts, 0]}}
s._misses[object] = 42
s._do_invalidate(object)
self.assertEqual(s._data, {object2: {key: [value, ts, 0]}},
'invalidation failed')
self.assertEqual(s._misses[object], 0, "misses counter not cleared")
s._data = {object: {key: [value, ts, 0],
key2: [value, ts, 0]},
object2: {key: [value, ts, 0]}}
s._do_invalidate(object, key2)
self.assertEqual(s._data,
{object: {key: [value, ts, 0]},
object2: {key: [value, ts, 0]}},
'invalidation of one key failed')
