AssertionError: 404 != 200 in django test

Question

When I test the simple app according to tutorial 'AssertionError: 404 != 200' is occured. Can anybody fix this problem? (Project name: simple_project, app name inside the project: pages)

My app-level urls.py:

from django.urls import path from . import views urlpatterns = [ path('', views.HomePageView.as_view(), name='home'), path('about/', views.AboutPageView.as_view(), name='about'), ]

My app-level views.py:

from django.views.generic import TemplateView class HomePageView(TemplateView): template_name = 'home.html' class AboutPageView(TemplateView): template_name = 'about.html'

My project-level urls.py:

from django.contrib import admin from django.urls import path, include urlpatterns = [ path('admin/', admin.site.urls), path('', include('pages.urls')), ]

My tests.py:

from django.test import SimpleTestCase class SimpleTests(SimpleTestCase): def test_home_page_status_code(self): response = self.client.get('/') self.assertEquals(response.status_code, 200) def test_abaout_page_status_code(self): response = self.client.get('about') self.assertEquals(response.status_code, 200)

When I test, this error is occured:

FAIL: test_abaout_page_status_code (pages.tests.SimpleTests) ---------------------------------------------------------------------- Traceback (most recent call last): File "C:\Users\User\Dj\simple\pages\tests.py", line 10, in test_abaout_page_status_code self.assertEquals(response.status_code, 200) AssertionError: 404 != 200

Exprator · Accepted Answer · 2018-02-02 07:43:02Z

1

def test_abaout_page_status_code(self): response = self.client.get('/about/') self.assertEquals(response.status_code, 200)

try this

edited Feb 2, 2018 at 7:43

answered Feb 2, 2018 at 7:35

Exprator

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2 Comments

Fayzulla Over a year ago

Then this one is occured: 'AssertionError: 301 != 200'

Fayzulla Over a year ago

Oh, it works. I have missed putting this inside the slash. Thank you very much.

Slav · Accepted Answer · 2019-05-01 13:54:47Z

I had such a problem, use this:

from django.test import TestCase from django.urls import reverse def test_abaout_page_status_code(self): response = self.client.get(reverse("about")) self.assertEqual(response.status_code, 200)

Welcome to SO. Please add a few more words to help explain your answer.

Sabuhi Shukurov · Accepted Answer · 2020-05-26 17:58:26Z

Well, try this:

from django.urls import reverse, resolve from django.test import SimpleTestCase from .views import HomePageView,AboutPageView class SimpleTests(SimpleTestCase): def test_home_page_status_code(self): path = reverse("home") self.assertEquals(resolve(path).func.view_class, HomePageView) response = self.client.get(path) self.assertEquals(response.status_code, 200) def test_abaout_page_status_code(self): path = reverse("about") self.assertEquals(resolve(path).func.view_class, AboutPageView) response = self.client.get(path) self.assertEquals(response.status_code, 200)

fatbrokekid · Accepted Answer · 2021-11-15 05:58:48Z

In case you forgot like I did. remember to add / to your links:

def test_post_detail_view(self): response = self.client.get('/post/1/') no_response = self.client.get('/post/100000/') self.assertEqual(response.status_code, 200) self.assertEqual(no_response.status_code, 404) self.assertContains(response, 'A good title') self.assertTemplateUsed(response, 'post_detail.html')

before:

def test_post_detail_view(self): response = self.client.get('post/1/') no_response = self.client.get('/post/100000/') self.assertEqual(response.status_code, 200) self.assertEqual(no_response.status_code, 404) self.assertContains(response, 'A good title') self.assertTemplateUsed(response, 'post_detail.html')

Since it seems like it's hard to find, i'm talking about the first "/" on:('/post/1/').

Thanks for telling me to improve my answers!

You might want to point out, that it is about the leading slash in the second line. Otherwise this is a little hard to read.
Your answer could be improved with additional supporting information. Please edit to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers in the help center.

Harsh Aryan · Accepted Answer · 2020-04-22 22:15:28Z

Use mine code bro, this will definitely work!!

from django.test import TestCase def test_home_page_status_code(self): response = self.client.get('/') self.assertEqual(response.status_code, 200) def test_about_page_status_code(self): response = self.client.get('/about/') self.assertEqual(response.status_code, 200)

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