def test_snapshot(self):
m = Metadatable(metadata={6: 7})
self.assertEqual(m.snapshot_base(), {})
self.assertEqual(m.snapshot(), {'metadata': {6: 7}})
del m.metadata[6]
self.assertEqual(m.snapshot(), {})
sb = self.HasSnapshotBase(metadata={7: 8})
self.assertEqual(sb.snapshot_base(), {'cheese': 'gruyere'})
self.assertEqual(sb.snapshot(),
{'cheese': 'gruyere', 'metadata': {7: 8}})
del sb.metadata[7]
self.assertEqual(sb.snapshot(), sb.snapshot_base())
s = self.HasSnapshot(metadata={8: 9})
self.assertEqual(s.snapshot(), {'fruit': 'kiwi'})
self.assertEqual(s.snapshot_base(), {})
self.assertEqual(s.metadata, {8: 9})
def test_snapshot():
m = Metadatable(metadata={6: 7})
assert m.snapshot_base() == {}
assert m.snapshot() == {'metadata': {6: 7}}
del m.metadata[6]
assert m.snapshot() == {}
sb = HasSnapshotBase(metadata={7: 8})
assert sb.snapshot_base() == {'cheese': 'gruyere'}
assert sb.snapshot() == \
{'cheese': 'gruyere', 'metadata': {7: 8}}
del sb.metadata[7]
assert sb.snapshot() == sb.snapshot_base()
s = HasSnapshot(metadata={8: 9})
assert s.snapshot() == {'fruit': 'kiwi'}
assert s.snapshot_base() == {}
assert s.metadata == {8: 9}
