import logging import unittest from traceback import format_tb from nose.pyversion import is_base_exception log = logging.getLogger(__name__) __all__ = ['Failure'] class Failure(unittest.TestCase): """Unloadable or unexecutable test. A Failure case is placed in a test suite to indicate the presence of a test that could not be loaded or executed. A common example is a test module that fails to import. """ __test__ = False # do not collect def __init__(self, exc_class, exc_val, tb=None, address=None): log.debug("A failure! %s %s %s", exc_class, exc_val, format_tb(tb)) self.exc_class = exc_class self.exc_val = exc_val self.tb = tb self._address = address unittest.TestCase.__init__(self) def __str__(self): return "Failure: %s (%s)" % ( getattr(self.exc_class, '__name__', self.exc_class), self.exc_val) def address(self): return self._address def runTest(self): if self.tb is not None: if is_base_exception(self.exc_val): raise self.exc_val.with_traceback(self.tb) raise self.exc_class(self.exc_val).with_traceback(self.tb) else: raise self.exc_class(self.exc_val)