def test_data_proxy_delete():
w = gtk.Entry()
data = GObjectUserDataProxy(w)
data.foo = 123
assert data.foo == 123
del data.foo
assert data.foo is None
def test_data_proxy_set():
w = gtk.Entry()
data = GObjectUserDataProxy(w)
data.foo = 123
assert w.get_data('foo') == 123
