CODEWITHSUNDEEP
pythondjangounit-testing
allanberry
allanberry

Reputation: 7765

False 404 from Django test?

I'm having trouble with testing my Django app. I can load a page in the browser just fine, but my test code returns 404.

This test returns False:

def test_item(self):
    response = self.client.get('/items/1/')
    self.assertEqual(response.status_code, 200)

If I stick a print line in there somewhere...

print(response)

... it returns the full HTML page, as expected:

Vary: Accept-Language, Cookie
Content-Type: text/html; charset=utf-8
Content-Language: en

<!DOCTYPE html>
... 
</html>

Which looks good (should be 200) to me. But it's not:

print(response.status_code)

...returns 404

What am I missing?

Versions

Django 1.6, Python 2.7.6

URL

http://localhost:8000/items/1/

urls.py

urlpatterns = patterns('',
    url(r"^(?P<item_id>[0-9]+/?)/$", "item.views.item_by_id",),
    )

views.py

def item_by_id(request, item_id):
    try:
        item = Item.objects.get(id=item_id)
    except Item.DoesNotExist:
        raise Http404
    return render(request, 'item.html', {'item': item})

Upvotes: 2

Views: 1799

Answers (1)

Alex
Alex

Reputation: 8539

You don't have an item_id that matches your url (i.e., there's no "1" in your database). In your view, it's trying to get the Item but it's raising an exception, thus returning an HTTP404. The test and view is working exactly as it should.

Unit tests create a new (empty) database, so any Items you have in your regular database won't appear. You'll need to create an Item within your test file with the item_id that you're checking.

Sample:

def test_item(self):
    Item.objects.create(name="Item1") # Note you may need to edit the fields based on your model

    response = self.client.get('/items/1/')
    self.assertEqual(response.status_code, 200)

Upvotes: 7

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