Python，Django单元测试。 RequestFactory测试不工作

Question

我有这样的观点，我想测试

def change_item(request): 
    name_change = request.POST.get('name_change') 
    cost_change = request.POST.get('cost_change') 
    category_change = request.POST.get('category_change') 
    product_id = request.POST.get('product_id') 
    category_name = Category.objects.get(name = category_change) 
    product = Product.objects.get(id__exact = product_id) 
    product.name = name_change 
    product.category = category_name 
    product.price = cost_change 
    product.save() 
    return HttpResponse() 

，我写了一个测试它，但它不工作（我想测试要求）

from django.test import RequestFactory 
from django.test import TestCase 
from views import change_item 
from models import Product 
from django.utils import unittest 


class TestChange_item(TestCase): 
    def setUp(self): 
     self.factory = RequestFactory() 

    def change_item_test(self): 
     # Create an instance of a GET request. 
     request = self.factory.get('main/views') 
     # Test my_view() as if it were deployed at /customer/details 
     response = change_item(request) 
     self.assertEqual(response.status_code, 200) 

当我运行它时，我在控制台中得到这个

ERROR: change_item_test (src.main.tests.TestChange_item) 
---------------------------------------------------------------------- 
Traceback (most recent call last): 
File "/home/volodia/work/shopping-helper/src/main/tests.py", line 19, in change_item_test 
response = change_item(request) 
File "/usr/local/lib/python2.7/dist-packages/django/contrib/auth/decorators.py", line 24, in _wrapped_view 
if test_func(request.user): 
AttributeError: 'WSGIRequest' object has no attribute 'user' 

---------------------------------------------------------------------- 
Ran 1 test in 0.002s 

FAILED (errors=1) 

我该怎么处理它？或者有一些不同的测试请求方式？

Answer 1

如果你看看文档，你会看到你需要manually add a user to the request。它不会自动为你做这件事。

def change_item_test(self): 
    request = self.factory.get('main/views') 
    request.user = User.objects.create_user(username="bobalong") 

添加这样的用户模拟了一个登录请求。如果这不是你想要的，那么你应该创建一个AnonymousUser。一般来说，你得到的错误应该为你提供你需要知道的一切。它明确告诉你，测试失败，因为请求没有user。添加真实用户或向请求添加模拟用户对象是答案。

此外，您似乎正在测试只能使用POST请求的视图。它会失败，因为request.POST没有正确的字典键。您可以通过做

factory.post('main/views', {'name_change': 'some name'})`