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Djangoでcookieを使うJWTレスポンスのテストコードの書き方

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Djangoでcookieを使うJWTレスポンスのテストコードの書き方

ポイント

・JWTレスポンスのテストはunittestでやります。
・SimpleCookieでtokenをジェネレーターする

test.py
import pytest
import uuid

from unittest import mock
from django.http import HttpResponse
from django.test import TestCase
from http.cookies import SimpleCookie

from rest_framework.test import APIRequestFactory
from rest_framework import status

from . import AuthMiddleware

def user_login():
    factory = APIRequestFactory()
    url = "http://127.0.0.1:8000/login"
    post_data = {
        "email": "unit@test.com",
        "password": "test"
    }
    request = factory.post(url, data=post_data)
    response = login(request)
    return response

@pytest.mark.django_db
class MiddlewareTest(TestCase):
    """
    JWTテスト
    """
    def setUp(self):
        # tokenをバリデートするミドルウェアをイニシャル
        self.mock_init = mock.patch.object(
            AuthMiddleware, "__init__", fake_init
        ).start()

        self.addCleanup(mock.patch.stopall)

    def test_JWTテスト_成功_200(self):
        # get token
        # 前に作成されたuser_loginフンクションでtokenを取得する
        response = user_login()
        token = response.cookies.get('jwt_cookie').value

        # create URL
        id = str(uuid.uuid4())
        url = "http://127.0.0.1:8000/users" + "/" + id

        # call API
        # modify token for NOT pass the token authorization
        self.client.cookies = SimpleCookie({'jwt_cookie': token})
        # getメソッドを呼び出し、tokenバリデーションが成功になったら200を返します
        # 自動的にAuthMiddleware(ミドルウェア)でtokenをバリデーションする
        response = self.client.get(url, content_type='application/json')

        # check is the response is correct
        assert(response.status_code == status.HTTP_200_OK)
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