Pytest：从父级继承夹具 class

Question

我有几个测试用例来测试基于 flask/connexion 的 api 的端点。

现在我想将它们重新排序为 classes，所以有一个基数 class:

import pytest
from unittest import TestCase

# Get the connexion app with the database configuration
from app import app


class ConnexionTest(TestCase):
    """The base test providing auth and flask clients to other tests
    """
    @pytest.fixture(scope='session')
    def client(self):
        with app.app.test_client() as c:
            yield c

现在我有了另一个 class 我的实际测试用例：

import pytest
from ConnexionTest import ConnexionTest

class CreationTest(ConnexionTest):
    """Tests basic user creation
    """

    @pytest.mark.dependency()
    def test_createUser(self, client):
        self.generateKeys('admin')
        response = client.post('/api/v1/user/register', json={'userKey': self.cache['admin']['pubkey']})
        assert response.status_code == 200

现在不幸的是我总是得到一个

TypeError: test_createUser() missing 1 required positional argument: 'client'

将 fixture 继承给 subclasses 的正确方法是什么？

Answer 1

因此，在谷歌搜索有关固定装置的更多信息后，我遇到了

因此需要执行两个步骤

移除 unittest TestCase 继承
将 @pytest.mark.usefixtures() 装饰器添加到 child class 以实际使用 fixture

在代码中变成

import pytest
from app import app

class TestConnexion:
    """The base test providing auth and flask clients to other tests
    """

    @pytest.fixture(scope='session')
    def client(self):
        with app.app.test_client() as c:
            yield c

现在 child class

import pytest
from .TestConnexion import TestConnexion

@pytest.mark.usefixtures('client')
class TestCreation(TestConnexion):
    """Tests basic user creation
    """
    @pytest.mark.dependency(name='createUser')
    def test_createUser(self, client):
        self.generateKeys('admin')
        response = client.post('/api/v1/user/register', json={'userKey': self.cache['admin']['pubkey']})
        assert response.status_code == 200

Pytest：从父级继承夹具 class

Pytest: Inherit fixture from parent class

python

pytest

flask

connexion