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"""
An alternative Django ``TEST_RUNNER`` which uses unittest2 test discovery from
a base path specified in settings, rather than requiring all tests to be in
``tests`` module of an app.
If you just run ``./manage.py test``, it'll discover and run all tests
underneath the ``TEST_DISCOVERY_ROOT`` setting (a path). If you run
``./manage.py test full.dotted.path.to.test_module``, it'll run the tests in
that module (you can also pass multiple modules).
And (new in this updated version), if you give it a single dotted path to a
package, and that package does not itself directly contain any tests, it'll do
test discovery in all sub-modules of that package.
This code doesn't modify the default unittest2 test discovery behavior, which
only searches for tests in files named "test*.py".
"""
from django.conf import settings
from django.test import TestCase
from django.test.simple import DjangoTestSuiteRunner, reorder_suite
from django.utils.importlib import import_module
from django.utils.unittest.loader import defaultTestLoader
class DiscoveryRunner(DjangoTestSuiteRunner):
"""A test suite runner that uses unittest2 test discovery."""
def build_suite(self, test_labels, extra_tests=None, **kwargs):
suite = None
discovery_root = settings.TEST_DISCOVERY_ROOT
if test_labels:
suite = defaultTestLoader.loadTestsFromNames(test_labels)
# if single named module has no tests, do discovery within it
if not suite.countTestCases() and len(test_labels) == 1:
suite = None
discovery_root = import_module(test_labels[0]).__path__[0]
if suite is None:
suite = defaultTestLoader.discover(
discovery_root,
top_level_dir=settings.BASE_PATH,
)
if extra_tests:
for test in extra_tests:
suite.addTest(test)
return reorder_suite(suite, (TestCase,))
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