我有以下单元测试,但无法弄清楚为什么它会失败(如果我删除,测试会通过if(request.META.get('HTTP_REFERER') != request.build_absolute_uri(reverse('page1'))):),但我无法弄清楚如何在它仍然存在的情况下通过测试。文件测试.pydef test_redirects_after_POST(self):        user = User.objects.create_superuser('username')        self.client.force_login(user)        response = self.client.post(            reverse('page1'), data={            'first_name': 'testuser',            'dob': UnitTest.set_age(20)}        )        self.assertRedirects(response, reverse('page2'))我试过添加这个,但它没有帮助:referer = 'http://testserver{}'.format(reverse('page1'))# Also tried: referer = 'http://testserver{}'.format(reverse('page2'))        response = self.client.post(            reverse('page1'), data={            'first_name': 'testuser',            'dob': UnitTest.set_age(20)}            , HTTP_REFERER=referer)文件views.py@login_required@allowed_users(allowed_roles=['admin', 'registered_user'])def page1(request):    if request.method == 'POST':        form = Page1Form(request.POST, request.FILES, instance=request.user.page1)        if form.is_valid():            form.save()            return redirect('page2')    else:        form = Page1Form(instance=request.user.page1)    context = {        'form' : form,    }    return render(request, 'website/page1.html', context)@login_required@allowed_users(allowed_roles=['admin', 'registered_user'])def page2(request):    if request.method == 'POST':        form = Page2Form(request.POST, request.FILES, instance=request.user.page2)        if form.is_valid():            form.save()            return redirect('page3')    else:        # redirect if user didnt access the page from page1        if(request.META.get('HTTP_REFERER') != request.build_absolute_uri(reverse('page1'))):            return redirect('page1')        else:            form = Page2Form(instance=request.user.page2)    context = {        'form' : form    }
                    
                    
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