def test_crud_and_persistence(client):
    response = client.post('/tasks', json={'title': 'Ship API', 'description': 'release it'})
    assert response.status_code == 201
    task = response.json()
    assert task['status'] == 'pending'
    task_id = task['id']

    assert client.get('/tasks').status_code == 200
    assert client.get(f'/tasks/{task_id}').json()['title'] == 'Ship API'
    updated = client.patch(f'/tasks/{task_id}', json={'status': 'completed'}).json()
    assert updated['status'] == 'completed'
    assert client.delete(f'/tasks/{task_id}').status_code == 204
    assert client.get(f'/tasks/{task_id}').status_code == 404


def test_validation_and_status_semantics(client):
    result = client.post('/tasks', json={'title': '   '})
    assert result.status_code == 422
    assert result.json()['error']['code'] == 'VALIDATION_ERROR'
    assert client.post('/tasks', json={'title': 'x', 'status': 'unknown'}).status_code == 422
    assert client.get('/tasks/not-a-uuid').status_code == 422
    assert client.get('/tasks?limit=0').status_code == 422


def test_filter_and_missing_resource(client):
    client.post('/tasks', json={'title': 'one', 'status': 'completed'})
    client.post('/tasks', json={'title': 'two', 'status': 'pending'})
    response = client.get('/tasks?status=completed')
    assert response.status_code == 200
    assert len(response.json()) == 1
    assert client.patch('/tasks/00000000-0000-0000-0000-000000000000', json={'title': 'x'}).status_code == 404