Source code for nose2.plugins.loader.loadtests

"""
Loader that implements the ``load_tests`` protocol.

This plugin implements the ``load_tests`` protocol as detailed in the
documentation for :mod:`unittest2`.

See the `load_tests protocol`_ documentation for more information.

.. warning ::

   Test suites using the ``load_tests`` protocol do not work correctly
   with the :mod:`multiprocess` plugin as of nose2 04. This will be
   fixed in a future release.

.. _load_tests protocol: http://docs.python.org/library/unittest.html#load-tests-protocol
"""
from fnmatch import fnmatch
import logging

from nose2 import events, util


log = logging.getLogger(__name__)


[docs]class LoadTestsLoader(events.Plugin): """Loader plugin that implements load_tests.""" alwaysOn = True configSection = 'load_tests' _loading = False def registerInSubprocess(self, event): event.pluginClasses.append(self.__class__)
[docs] def moduleLoadedSuite(self, event): """Run ``load_tests`` in a module. May add to or filter tests loaded in module. """ module = event.module load_tests = getattr(module, 'load_tests', None) if not load_tests: return try: event.suite = load_tests( event.loader, event.suite, self.session.testFilePattern) except Exception as exc: log.exception( "Failed to load tests from %s via load_tests", module) suite = event.loader.suiteClass() suite.addTest(event.loader.failedLoadTests(module.__name__, exc)) event.handled = True return suite
[docs] def handleDir(self, event): """Run ``load_tests`` in packages. If a package itself matches the test file pattern, run ``load_tests`` in its :file:`__init__.py`, and stop default test discovery for that package. """ if self._loading: return if (self._match(event.name, event.pattern) and util.ispackage(event.path)): name, _package_path = util.name_from_path(event.path) module = util.module_from_name(name) load_tests = getattr(module, 'load_tests', None) if not load_tests: return self._loading = True try: suite = event.loader.suiteClass() try: suite = load_tests(event.loader, suite, event.pattern) except Exception as exc: log.exception( "Failed to load tests from %s via load_tests", module) suite.addTest( event.loader.failedLoadTests(module.__name__, exc)) event.handled = True return suite finally: self._loading = False
def _match(self, filename, pattern): return fnmatch(filename, pattern)