Esempio n. 1
0
def test_uncontained():
    item = Item()
    container = {u'foo': item}
    x, event = containedEvent(item, container, u'foo')

    assert item.__parent__ is container
    assert item.__name__ == u'foo'

    uncontained(item, container, u'foo')
    assert item.__parent__ is None
    assert item.__name__ is None

    assert len(getEvents(IObjectRemovedEvent)) == 1

    event = getEvents(IObjectRemovedEvent)[-1]
    assert event.object is item
    assert event.oldParent is container
    assert event.oldName == u'foo'
    assert event.newParent is None
    assert event.newName is None

    assert len(getEvents(IObjectModifiedEvent)) == 1
    assert getEvents(IObjectModifiedEvent)[-1].object is container

    # Events are never triggered twice
    uncontained(item, container, u'foo')
    assert len(getEvents(IObjectRemovedEvent)) == 1
    assert len(getEvents(IObjectModifiedEvent)) == 1

    item.__parent__, item.__name__ = container, None
    uncontained(item, container, u'foo')
    assert len(getEvents(IObjectRemovedEvent)) == 1
    assert len(getEvents(IObjectModifiedEvent)) == 2

    item.__parent__, item.__name__ = None, u'bar'
    uncontained(item, container, u'foo')
    assert len(getEvents(IObjectRemovedEvent)) == 1
    assert len(getEvents(IObjectModifiedEvent)) == 3
Esempio n. 2
0
 def __delitem__(self, key):
     # make sure our lazy property gets set
     l = self.__len
     uncontained(self._data[key], self, key)
     del self._data[key]
     l.change(-1)
Esempio n. 3
0
 def __delitem__(self, key):
     """See interface `IWriteContainer`.
     """
     uncontained(self._data[key], self, key)
     del self._data[key]