def METHOD_NAME(self):
    """Watch then unwatch a forum."""
    u = UserFactory()
    self.client.login(username=u.username, password="testpass")
    d = ApprovedRevisionFactory().document
    post(self.client, "wiki.discuss.watch_forum", {"watch": "yes"}, args=[d.slug])
    assert NewThreadEvent.is_notifying(u, d)
    # NewPostEvent is not notifying.
    t = ThreadFactory(document=d)
    p = t.new_post(creator=t.creator, content="test")
    assert not NewPostEvent.is_notifying(u, p)
    post(self.client, "wiki.discuss.watch_forum", {"watch": "no"}, args=[d.slug])
    assert not NewThreadEvent.is_notifying(u, d)