def addSubTest(self, test, subtest, err):
        """Called at the end of a subtest.
        'err' is None if the subtest ended successfully, otherwise it's a
        tuple of values as returned by sys.exc_info().
        """
        _PythonTextTestResult.addSubTest(self, test, subtest, err)
        if err is not None:
            subdesc = subtest._subDescription()
            error = (test, self._exc_info_to_string(err, test))
            self._reportErrors([error], [], '', '%s %s' % (self.get_test_name(test), subdesc))
Called at the end of a subtest.
        'err' is None if the subtest ended successfully, otherwise it's a
        tuple of values as returned by sys.exc_info().
        
debugger/src/_pydev_runfiles/pydev_runfiles_unittest.py