[Django]-How to spread django unit tests over multiple files?

Note that this approach is no longer valid from Django 1.6, see this post.

You can create tests folder with ___init___.py inside (so that it becomes a package). Then you add your split test .py files there and import all of them in ___init___.py.

I.e: Substitute the test.py file with a module that looks and acts like the file:

Create a tests Directory under the app in question

app
app\models.py
app\views.py
app\tests
app\tests\__init__.py
app\tests\bananas.py
app\tests\apples.py

Import the submodules into app\tests\__init__.py:

from bananas import *
from apples import *

Now you can use ./manage.py as if they were all in a single file:

./manage.py test app.some_test_in_bananas

The answer as stated by Tomasz is correct. However, it can become tedious to ensure that the imports in __init__.py match your file structure.

To automatically detect all tests in the folder you can add this in __init__.py:

import unittest

def suite():   
    return unittest.TestLoader().discover("appname.tests", pattern="*.py")

This will allow you to run ./manage.py test appname but won’t handle running specific tests. To do that you can use this code (also in __init__.py):

import pkgutil
import unittest

for loader, module_name, is_pkg in pkgutil.walk_packages(__path__):
    module = loader.find_module(module_name).load_module(module_name)
    for name in dir(module):
        obj = getattr(module, name)
        if isinstance(obj, type) and issubclass(obj, unittest.case.TestCase):
            exec ('%s = obj' % obj.__name__)

Now you can run all your tests via manage.py test app or specific ones via manage.py test app.TestApples

Just make your directory structure like this:

myapp/
    __init__.py
    tests/
        __init__.py
        test_one.py
        test_two.py
        ...
    ...

And python manage.py test myapp will work as expected.

http://docs.python.org/library/unittest.html#organizing-tests talks about splitting the files into modules, and the section right above it has an example.

With Django 2.2 a simple and fairly good solution could be to create a test folder inside an app, and you can put your related test_...py files into, just add __init__.py to the test folder.

No need to code anything in init.
Just create a subdirectory in your app. Only requirement is not to call it tests*
For exemple

app/
app/__init_.py
app/serializers.py
app/testing/
app/testing/__init__.py
app/testing/tests_serializers.py

If you have a more complicated setup, or don’t want to use from ... import *-type statements, you can define a function called suite in your tests.py (or tests/__init__.py), which returns an instance of unittest.TestSuite.

I have two files. One is tests.py and another is test_api.py. I can run these individually as below.

manage.py test companies.tests
manage.py test companies.test_api

Refer @osa’s response about file naming convention.

I think ./manage.py test simply does running all the tests trick (in django >= 1.7).

If your organizing tests is about grouping and cherrypicking and you are fan of nose use django nose:

python manage.py test another.test:TestCase.test_method

If you know nose, then you know how to “wildcard” much nicer over all your files.

PS

It is just a better practice. Hope that helps. The answer was borrowed from here: Running a specific test case in Django when your app has a tests directory

In django you can use below comman or can check documentation. Also using this command will pick up files with pattern you provide not just test*.py or test_*.py.

Documentation
You can specify a custom filename pattern match using the -p (or –pattern) option, if your test files are named differently from the test*.py pattern:

$ ./manage.py test --pattern="tests_*.py"

Just create different test files with tests_name in your app

Say you have following test files:

tests_admins.py
tests_staff.py
tests_others.py
# will run both test files
(venv)..yourapp$./manage.py test --keepdb -v 2 appname

Or in Windows, if you do not want to create a package (i.e folder with __init__.py) and just want to create a folder called "Tests" and this folder contains the test files then to run tests in cmd just enter

python manage.py test your_app_name/Tests

Since a path is expected