django testing class based view

Question

I have a Class based view defined as:

class Myview(LoginRequiredMixin, View):

    def post():
      #.......

to test this view i tried this

class MyViewTest(TestCase):
    def setUp(self):
        self.factory = RequestFactory()
        self.user = User.objects.create_user(
            username='jacob', email='soos@i.com', password='vvggtt')

    def view_test(self):
        # Create an instance of a POST request.
        request = self.factory.post('/my-url/')
        request.user = self.user

        response = MyView(request)
        print (response,"**")
        self.assertEqual(response.status_code, 200)

But this gives this error.

    response = MyView(request)
TypeError: __init__() takes 1 positional argument but 2 were given

I understand why this error is coming (cinstructor of MyView has 2 ars) but how do i remove it? i couldnt get the details on searching.

Have you implemented your own `__init__` method in `MyView`? If so could you post it? — user234461, May 18 '18 at 13:09
Normally `request` wouldn't be passed to the class constructor; see `https://docs.djangoproject.com/en/2.0/ref/class-based-views/base/#django.views.generic.base.View.as_view` — user234461, May 18 '18 at 13:09
@user234461 all i want is log in with a user and hit a post request and check if the response is correct — AshishRay94, May 18 '18 at 13:12
yeah well `MyView(request)` is wrong. The constructor doesn't take a request. See https://github.com/django/django/blob/master/django/views/generic/base.py — user234461, May 18 '18 at 13:18
Which method of `View` expects a `request`? The answer is right there in the function arguments - use the source, Luke. — user234461, May 18 '18 at 13:18
Possible duplicate of [How to unit test methods inside django's class based views?](https://stackoverflow.com/questions/33645780/how-to-unit-test-methods-inside-djangos-class-based-views) — Dušan Maďar, May 18 '18 at 13:19
@user234461 i figured that after following the link you gave. but now i am gettinga another error `list_ = super().__getitem__(key) KeyError: 'nth_term'` . i am creating the post request as `request = self.factory.post('/my-url/', data={'nth_term': 5}, content_type='application/json')` — AshishRay94, May 18 '18 at 13:22

score 3 · Answer 1 · answered May 21 '18 at 06:11

we can use django test client

from django.test import Client

class MyViewTest(TestCase):
    def setUp(self):
        self.client = Client()
        self.user = User.objects.create_user(
            username='jacob', email='soos@i.com', password='vvggtt')

    def view_test(self):
        # Create an instance of a POST request.
        self.client.login(username="jacob", password="vvggtt")
        data = {'name': 'test name'}
        res = self.client.post('/my-url/', data)
        print(res)
        self.assertEqual(res.status_code, 200)

score 3 · Answer 2 · answered Mar 04 '21 at 08:10

3

From the docs:

# Use this syntax for class-based views.
response = MyView.as_view()(request)

answered Mar 04 '21 at 08:10

arcanemachine

571
4
9

score 0 · Answer 3 · answered May 18 '18 at 15:15

0

Try

response = MyView(request=request)

answered May 18 '18 at 15:15

Dasith

363
2
13

score 0 · Answer 4 · answered Apr 17 '22 at 22:09

There's a section of the Django docs called Testing Class Based Views which addresses this:

In order to test class-based views outside of the request/response cycle you must ensure that they are configured correctly, by calling setup() after instantiation.

So in your case this looks something like:

    def view_test(self):
        # Create an instance of a POST request.
        request = self.factory.post('/my-url/')
        request.user = self.user

        my_view = MyView()
        my_view.setup(request)
        response = my_view.post(request)

        self.assertEqual(response.status_code, 200)

django testing class based view

4 Answers4