def test_list(self):
class ListModel(Model):
data = List([1, 2, 3])
model = ListModel()
obs = Observer(model)
obs.notify = Mock()
model.data.append(4)
assert obs.notify.called
obs.notify.reset_mock()
del model.data[0]
assert obs.notify.called
obs.notify.reset_mock()
assert model.data[0] == 2 # no modification
assert not obs.notify.called
obs.notify.reset_mock()
model.data[0] = 1
assert model.data[0] == 1
assert obs.notify.called
obs.notify.reset_mock()
model.data.pop() # remove last item
assert model.data[-1] == 3
assert obs.notify.called
def test_notify(self):
model = TestModel()
obs = Observer(model)
obs.notify = Mock()
model.attr1 = 1
obs.notify.assert_called_with('attr1', 1, 0) # name, new, old
model.attr1 = 1
obs.notify.assert_called_with('attr1', 1, 1)
def test_wildcards(self):
model = WildcardModel()
obs = Observer(model)
obs.notify = Mock()
model.attr1 = 1
obs.notify.assert_called_with('attr1', 1, 0)
obs.notify.reset_mock()
model.attr2 = 2
self.assertFalse(obs.notify.called)
model.test_attr = 1
obs.notify.assert_called_with('test_attr', 1, 0)
model.data1 = 1
obs.notify.assert_called_with('data1', 1, 0)
def test_dict(self):
class DictModel(Model):
data = Dict({1: 'blub', 'test': True})
model = DictModel()
obs = Observer(model)
obs.notify = Mock()
model.data[0] = 'new'
assert model.data[0] == 'new'
assert obs.notify.called
obs.notify.reset_mock()
del model.data[0]
assert obs.notify.called
obs.notify.reset_mock()
assert 0 not in model.data # no modification
assert not obs.notify.called
obs.notify.reset_mock()
model.data.popitem()
assert obs.notify.called
def test_wildcards(self):
obs = Observer(Mock())
mock = Mock()
obs.register_callback('*', mock)
args = ['attr1', 0, 1]
obs.notify(*args)
mock.assert_called_with(*args)
args = ['test_attr', 0, 1]
obs.notify(*args)
mock.assert_called_with(*args)
mock = Mock()
obs.register_callback('attr?', mock)
args = ['attr1', 0, 1]
obs.notify(*args)
mock.assert_called_with(*args)
mock.reset_mock()
args = ['test_attr', 0, 1]
obs.notify(*args)
self.assertFalse(mock.called)