def _attr_setdefault(self, attrs):
        if 'id' not in attrs and self.id is not None:
            attrs['id'] = self.id
SubunitReporter.startTest() sends the subunit 'startTest' message.
dataset/ETHPy150Open mitsuhiko/fungiform/fungiform/widgets.py/Widget._attr_setdefault--crossover with--dataset/ETHPy150Open twisted/twisted/twisted/trial/test/test_reporter.py/SubunitReporterTests.test_startTestSendsSubunitStartTest