def test_non_callable(self):
        with pytest.raises(TypeError) as excinfo:
            event.event(123)
        excinfo.match(r"Expected string, callable or None as first argument")

        with pytest.raises(TypeError) as excinfo:
            event.event("name")([])
        excinfo.match(r"Callable must be a function \(`def`\)"
                      r" or coroutine function \(`async def`\)")
def test_get_task_watcher(client):
    user = f.UserFactory.create()
    task = f.TaskFactory(owner=user)
    f.MembershipFactory.create(project=task.project, user=user, is_admin=True)
    watch = f.WatchedFactory.create(content_object=task, user=user)
    url = reverse("task-watchers-detail", args=(task.id, watch.user.id))

    client.login(user)
    response = client.get(url)

    assert response.status_code == 200
    assert response.data['id'] == watch.user.id