Writing a test for a Django View get_context_data() method

Question

I am writing a test for a View where I update context to pass additional information to the template.

Problem

In writing the test, I'm having trouble accessing context from the RequestFactory.

Code

View

class PlanListView(HasBillingRightsMixin, ListView):
    """Show the Plans for user to select."""

    headline = "Select a Plan"
    model = Plan
    template_name = "billing/plan_list.html"

    def get_context_data(self, *args, **kwargs):
        context = super(PlanListView, self).get_context_data(**kwargs)
        context.update({
            "customer": self.get_customer()
        })
        return context

Test

class TestPlanListView(BaseTestBilling):

    def setUp(self):
        super(TestPlanListView, self).setUp()
        request = self.factory.get('billing:plan_list')
        request.user = self.user
        request.company_uuid = self.user.company_uuid

        self.view = PlanListView()
        self.view.request = request
        self.response = PlanListView.as_view()(request)

    def test_get_context_data(self, **kwargs):
        context = super(self.view, self).get_context_data(**kwargs)
        context.update({"customer": self.view.get_customer()})
        self.assertEqual(
            self.view.get_context_data(),
            context
        )

Question

How can I test the view's get_context_data() method?

Answer 1

Using a test client gives you access to your context.

def test_context(self):
    # GET response using the test client.
    response = self.client.get('/list/ofitems/')
    # response.context['your_context']
    self.assertIsNone(response.context['page_obj'])
    self.assertIsNone(response.context['customer']) # or whatever assertion.
    .....