Django测试有问题吗？

t1qtbnec  于 2023-10-21  发布在  Go
关注(0)|答案(1)|浏览(149)

我正在开发一个Django应用程序，目前正在测试它，这是我的观点：

  1. from django.http import JsonResponse, HttpResponseBadRequest
  2. from store.models import Product
  3. from .basket import Basket
  5. # Create your views here.
  6. def basket_summary(request):
  7.     basket = Basket(request)
  8.     return render(request, "store/basket/summary.html", {"basket": basket})
  10. def basket_add(request):
  11.     basket = Basket(request)
  12.     if request.POST.get("action") == "post":
  13.         product_id = int(request.POST.get("productid"))
  14.         product_qty = int(request.POST.get("productqty"))
  15.         product = get_object_or_404(Product, id=product_id)
  16.         basket.add(product=product, product_qty=product_qty)
  18.         basket_qty = basket.__len__()
  19.         response = JsonResponse({"qty": basket_qty})
  20.         return response
  22. def basket_delete(request):
  23.     basket = Basket(request)
  24.     if request.POST.get("action") == "post":
  25.         product_id = int(request.POST.get("productid"))
  26.         basket.delete(product_id=product_id)
  28.         basket_qty = basket.__len__()
  29.         basket_total = basket.get_total_price()
  30.         response = JsonResponse({"qty": basket_qty, "subtotal": basket_total})
  31.         return response
  33. def basket_update(request):
  34.     basket = Basket(request)
  35.     if request.POST.get("action") == "post":
  36.         product_id = int(request.POST.get("productid"))
  37.         product_qty = int(request.POST.get("productqty"))
  38.         basket.update(product_id=product_id, product_qty=product_qty)
  40.         basket_qty = basket.__len__()
  41.         basket_total = basket.get_total_price()
  42.         response = JsonResponse({"qty": basket_qty, "subtotal": basket_total})
  43.         return response

我的urls.py文件也在下面：

  1. from .views import basket_summary, basket_add, basket_delete, basket_update
  3. app_name = "store_basket"
  4. urlpatterns = [
  5.     path("", basket_summary, name="basket_summary"),
  6.     path("add/", basket_add, name="basket_add"),
  7.     path("delete/", basket_delete, name="basket_delete"),
  8.     path("update/", basket_update, name="basket_update"),
  9. ]

最后是我的测试文件：

  1. from django.contrib.auth.models import User
  2. from django.test import TestCase
  3. from django.urls import reverse
  4. from store.models import Category, Product
  5. from json import loads
  7. class TestBasketView(TestCase):
  8.     def setUp(self):
  9.         category = Category.objects.create(name="django", slug="django")
  10.         user = User.objects.create(username="admin")
  11.         Product.objects.create(
  12.             title="django beginners",
  13.             category=category,
  14.             created_by=user,
  15.             slug="django-beginners",
  16.             price="20.00",
  17.             image="django",
  18.         )
  19.         Product.objects.create(
  20.             title="django intermediate",
  21.             category=category,
  22.             created_by=user,
  23.             slug="django-beginners",
  24.             price="20.00",
  25.             image="django",
  26.         )
  27.         Product.objects.create(
  28.             title="django advanced",
  29.             category=category,
  30.             created_by=user,
  31.             slug="django-beginners",
  32.             price="20.00",
  33.             image="django",
  34.         )
  35.         self.client.post(
  36.             reverse("store_basket:basket_add"),
  37.             {"productid": 1, "productqty": 1, "action": "post"},
  38.             xhr=True,
  39.         )
  40.         self.client.post(
  41.             reverse("store_basket:basket_add"),
  42.             {"productid": 2, "productqty": 2, "action": "post"},
  43.             xhr=True,
  44.         )
  46.     def test_basket_url(self):
  47.         """
  48.         Test homepage response status
  49.         """
  50.         response = self.client.get(reverse("store_basket:basket_summary"))
  51.         self.assertEqual(response.status_code, 200)
  53.     def test_basket_add(self):
  54.         """
  55.         Test adding items to the basket
  56.         """
  57.         response = self.client.post(
  58.             reverse("store_basket:basket_add"),
  59.             {"productid": 3, "productqty": 1, "action": "post"},
  60.             xhr=True,
  61.         )
  62.         self.assertEqual(response.json(), {"qty": 4})
  63.         response = self.client.post(
  64.             reverse("store_basket:basket_add"),
  65.             {"productid": 2, "productqty": 1, "action": "post"},
  66.             xhr=True,
  67.         )
  68.         self.assertEqual(response.json(), {"qty": 3})
  70.     def test_basket_delete(self):
  71.         """
  72.         Test deleting items from the basket
  73.         """
  74.         response = self.client.post(
  75.             reverse("store_basket:basket_delete"),
  76.             {"productid": 2, "action": "post"},
  77.             xhr=True,
  78.         )
  79.         self.assertEqual(response.json(), {"qty": 1, "subtotal": "20.00"})
  81.     def test_basket_update(self):
  82.         """
  83.         Test updating items from the basket
  84.         """
  85.         response = self.client.post(
  86.             reverse("store_basket:basket_update"),
  87.             {"productid": 2, "productqty": 1, "action": "post"},
  88.             xhr=True,
  89.         )
  90.         self.assertEqual(response.json(), {"qty": 2, "subtotal": "40.00"})

但是我运行了测试，得到了这个错误：

  1. ======================================================================
  2. ERROR: test_basket_add (store_basket.test.test_views.TestBasketView.test_basket_add)
  3. Test adding items to the basket
  4. ----------------------------------------------------------------------
  5. Traceback (most recent call last):
  6.   File "/Users/bottgabriel/Desktop/Practices/py/ecommerce/store_basket/test/test_views.py", line 63, in test_basket_add
  7.     self.assertEqual(response.json(), {"qty": 4})
  8.                      ^^^^^^^^^^^^^^^
  9.   File "/Users/bottgabriel/Desktop/Practices/py/ecommerce/venv/lib/python3.11/site-packages/django/test/client.py", line 823, in _parse_json
  10.     raise ValueError(
  11. ValueError: Content-Type header is "text/html; charset=utf-8", not "application/json"
  13. ======================================================================
  14. FAIL: test_basket_delete (store_basket.test.test_views.TestBasketView.test_basket_delete)
  15. Test deleting items from the basket
  16. ----------------------------------------------------------------------
  17. Traceback (most recent call last):
  18.   File "/Users/bottgabriel/Desktop/Practices/py/ecommerce/store_basket/test/test_views.py", line 80, in test_basket_delete
  19.     self.assertEqual(response.json(), {"qty": 1, "subtotal": "20.00"})
  20. AssertionError: {'qty': 0, 'subtotal': 0} != {'qty': 1, 'subtotal': '20.00'}
  21. - {'qty': 0, 'subtotal': 0}
  22. ?         ^
  24. + {'qty': 1, 'subtotal': '20.00'}
  25. ?         ^              ++ ++++
  27. ======================================================================
  28. FAIL: test_basket_update (store_basket.test.test_views.TestBasketView.test_basket_update)
  29. Test updating items from the basket
  30. ----------------------------------------------------------------------
  31. Traceback (most recent call last):
  32.   File "/Users/bottgabriel/Desktop/Practices/py/ecommerce/store_basket/test/test_views.py", line 91, in test_basket_update
  33.     self.assertEqual(response.json(), {"qty": 2, "subtotal": "40.00"})
  34. AssertionError: {'qty': 0, 'subtotal': 0} != {'qty': 2, 'subtotal': '40.00'}
  35. - {'qty': 0, 'subtotal': 0}
  36. ?         ^
  38. + {'qty': 2, 'subtotal': '40.00'}
  39. ?         ^              ++ ++++
  41. ----------------------------------------------------------------------
  42. Ran 13 tests in 0.267s
  44. FAILED (failures=2, errors=1, skipped=1)
  45. Destroying test database for alias 'default'...

任何帮助将不胜感激！
P.S：我已经调试并确保视图返回JSON，但由于某种原因，测试不起作用。

django

1条答案

按热度按时间
3phpmpom

3phpmpom1#

最有可能的情况是视图引发了一个错误，例如，因为产品不存在，中间件将其转换为HTML页面。
一个常见的误解是主键是固定的。他们不是。你应该把它们存储在测试用例中，所以：

  1. class TestBasketView(TestCase):
  2.     def setUp(self):
  3.         category = Category.objects.create(name='django', slug='django')
  4.         user = User.objects.create(username='admin')
  5.         self.product1 = Product.objects.create(
  6.             title='django beginners',
  7.             category=category,
  8.             created_by=user,
  9.             slug='django-beginners',
  10.             price='20.00',
  11.             image='django',
  12.         )
  13.         self.product2 = Product.objects.create(
  14.             title='django intermediate',
  15.             category=category,
  16.             created_by=user,
  17.             slug='django-beginners',
  18.             price='20.00',
  19.             image='django',
  20.         )
  21.         self.product3 = Product.objects.create(
  22.             title='django advanced',
  23.             category=category,
  24.             created_by=user,
  25.             slug='django-beginners',
  26.             price='20.00',
  27.             image='django',
  28.         )
  29.         self.client.post(
  30.             reverse('store_basket:basket_add'),
  31.             {'productid': self.product1.pk, 'productqty': 1, 'action': 'post'},
  32.             xhr=True,
  33.         )
  34.         self.client.post(
  35.             reverse('store_basket:basket_add'),
  36.             {'productid': self.product1.pk, 'productqty': 2, 'action': 'post'},
  37.             xhr=True,
  38.         )
  40.     def test_basket_add(self):
  41.         """
  42.         Test adding items to the basket
  43.         """
  44.         response = self.client.post(
  45.             reverse('store_basket:basket_add'),
  46.             {'productid': self.product3.pk, 'productqty': 1, 'action': 'post'},
  47.             xhr=True,
  48.         )
  49.         self.assertEqual(response.json(), {'qty': 4})
  50.         response = self.client.post(
  51.             reverse('store_basket:basket_add'),
  52.             {'productid': self.product2.pk, 'productqty': 1, 'action': 'post'},
  53.             xhr=True,
  54.         )
  55.         self.assertEqual(response.json(), {'qty': 3})

注意：通常情况下，我们 * 不 * 应该调用像__len__这样的魔法属性，通常情况下，这应该只在某些情况下进行，例如在使用super调用时。

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