Why is django-nose running tests twice?

Question

I have the following models:

class Poll(models.Model):

    question = models.CharField(max_length=200)
    pub_date = models.DateTimeField(auto_now_add=True)

    def __unicode__(self):
             return self.question

and the following test

from polls.models import Poll
from django.test import TestCase
from django.utils import timezone

class PollModelTest(TestCase):

    def test_poll_save(self):
        q = "What is the best OS?"
        pd = timezone.now()
        p = Poll(question=q,
                 pub_date=pd)
        p.save()
        polls = Poll.objects.all()
        self.assertEquals(polls.count(), 1)
        self.assertEquals(polls[0].question, q)

and the following settings:

INSTALLED_APPS = (
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.sites',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    # Uncomment the next line to enable the admin:
     'django.contrib.admin',
    # Uncomment the next line to enable admin documentation:
    # 'django.contrib.admindocs',
    'polls',
    'django_nose',

)

TEST_RUNNER = 'django_nose.NoseTestSuiteRunner'
NOSE_ARGS = [
    '--with-coverage',
    '--cover-package=polls',
    '--with-progressive',
    '--verbosity=0',
    '--with-fixture-bundling',
]

When I try python manage.py test polls the tests run twice. Following is the output:

Creating test database for alias 'default'...
Name           Stmts   Miss  Cover   Missing
--------------------------------------------
polls              0      0   100%   
polls.models       6      0   100%   
--------------------------------------------
TOTAL              6      0   100%   

OK!  2 tests, 0 failures, 0 errors in 0.0s
Destroying test database for alias 'default'...

However when I try without TEST_RUNNER = 'django_nose.NoseTestSuiteRunner', then the tests runs only once. Following is the output:

Creating test database for alias 'default'...
.
----------------------------------------------------------------------
Ran 1 test in 0.002s

OK
Destroying test database for alias 'default'...

Please tell me what is wrong? Why is django-nose running tests twice?

OT: django_nose takes more time than unittest, for the same model.

EDIT:

Here is the folder structure:

├── database.sqlite
├── manage.py
├── mysite
│   ├── __init__.py
│   ├── settings.py
│   ├── templates
│   │   ├── 404.html
│   │   ├── 500.html
│   │   └── base.html
│   ├── urls.py
│   └── wsgi.py
└── polls
    ├── __init__.py
    ├── models.py
    ├── tests
    │   ├── __init__.py
    │   └── test_models.py
    ├── urls.py
    └── views.py

score 3 · Accepted Answer · answered Sep 20 '12 at 11:05

3

Probably You have Your tests imported twice. You didn't show your file structure, but maybe You have this test in separate file and than you do import in tests.py, or something like that.

answered Sep 20 '12 at 11:05

yakxxx

2,841
2
21
22

@user1629366 So what do You have in `polls/tests/__init__.py` ? do You import test_models there? – yakxxx Sep 20 '12 at 12:12
`from test_models import *` thats it. – user1629366 Sep 20 '12 at 12:19
So You got Your answer. Remove this line from `polls/tests/__init__.py and` and You will get what You want – yakxxx Sep 20 '12 at 12:30
later i will write tests for views, as well and to run all the test, it is recommended, read more alike answers. It is **not** the mistake. How the hell, then django test runs only once! – user1629366 Sep 20 '12 at 13:50
@user1629366: django-nose does it for You. It discovers Your tests for You automatically. Putting tests in `__init__.py` is recommended when you are not using django-nose, so decide which recommendatation You follow. Uninstall django-nose and put all tests in `__init__.py` or use django-nose and don't care where You put tests and let it find them for You. Using django-nose is convenient because You put tests where they fit instead of listing them explicitly in some files. – yakxxx Sep 20 '12 at 16:35

Why is django-nose running tests twice?

1 Answers1