测试 Django 视图时出现断言错误 [英] Assertion error while testing Django views

问题描述

这是我在下面提到的 views.py 的测试函数:

def test_operation_page(self):url = reverse('操作')响应 = self.client.get(url)self.assertEqual(response.status_code, 200)self.assertTemplateUsed(响应，'abc.html')self.assertContains(response, '<b>BOOK id具有特定的标题:</b>')

这是我在测试视图时遇到的错误

<块引用>

AssertionError:SimpleTestCase 子类中不允许对默认"的数据库查询.子类化 TestCase 或 TransactionTestCase 以确保正确的测试隔离，或将默认"添加到 home.tests.TestViews.databases 以消除此故障.

这是我的views.py

def 操作(请求):queryset=Mytable.objects.filter(title="弗吉尼亚伍尔夫日记第五卷:1936-1941").values('bookid')textset=list(Mytable.objects.order_by('-bookid').values('title'))上下文={'key1':查询集，'key2':文本集}返回渲染(请求，'abc.html'，上下文)

这是我的 urls.py

urlpatterns = [路径('管理员/'，admin.site.urls)，路径('',v.index,name='index'),路径('abc/',v.operation,name='operation')

]

解决方案

正如它在 SimpleTestCase, "如果您的测试进行任何数据库查询，请使用子类 TransactionTestCase 或 TestCase."

您得到的错误是告诉您您的视图正在尝试在 SimpleTestCase 的子类中执行数据库查询.您应该更改正在使用的 TestCase 类 - 这应该可以解决错误.

This is my testing function for views.py which I have mention below:

def test_operation_page(self):
    url = reverse('operation')
    response = self.client.get(url)
    self.assertEqual(response.status_code, 200)
    self.assertTemplateUsed(response, 'abc.html')
    self.assertContains(response, '<b>BOOK id having certain title:</b>')

This is the error I am having while testing my views

AssertionError: Database queries to 'default' are not allowed in SimpleTestCase subclasses. Either subclass TestCase or TransactionTestCase to ensure proper test isolation or add 'default' to home.tests.TestViews.databases to silence this failure.

This is my views.py

def operation(request):
    queryset=Mytable.objects.filter(title="The Diary of Virginia Woolf  Volume Five: 1936-1941").values('bookid')
    textset=list(Mytable.objects.order_by('-bookid').values('title'))
    context={

    'key1' : queryset, 
    'key2' : textset
    }
    return render(request,'abc.html',context)

This is my urls.py

urlpatterns = [
path('admin/', admin.site.urls),
path('',v.index,name='index'),
path('abc/',v.operation,name='operation')

]

解决方案

As it states in the docs under SimpleTestCase, "If your tests make any database queries, use subclasses TransactionTestCase or TestCase."

The error that you are getting is telling you that your view is trying to execute a database query in a subclass of SimpleTestCase. You should change what TestCase class you are using - that should solve the error.

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