In Django, my tests are a set of test_foo.py files inside my_django_app/tests/, which each contain a TestCase subclass, and which django automatically finds and runs.
I have a bunch of utility modules with simple doctests that I would like to be included with my test suite. I tried using doctest.DocTestSuite() to define test suites in my_django_app/tests/test_doctests.py, but django's test runner does not find the new tests in that module.
Is there a way I can create a TestCase class that calls my doctests, or somehow otherwise define a new tests/test_foo.py module that would run these tests?
I solved this by creating a new module, my_django_app/tests/test_doctests.py, that looks like:
import doctest
import unittest
# These are my modules that contain doctests:
from util import bitwise
from util import text
from util import urlutil
DOCTEST_MODULES = (
bitwise,
text,
urlutil,
)
# unittest.TestLoader will call this when it finds this module:
def load_tests(*args, **kwargs):
test_all_doctests = unittest.TestSuite()
for m in DOCTEST_MODULES:
test_all_doctests.addTest(doctest.DocTestSuite(m))
return test_all_doctests
Django uses the builtin unittest TestLoader, which, during test discovery, will call load_tests() on your test module. So we define load_tests which creates a test suite out of all of the doctests.