def run(self, result):
        """
        Call C{run} on every member of the suite.
        """
        for test in self._tests:
            if result.shouldStop:
                break
            test(result)
        return result

        Call C{run} on every member of the suite.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/trial/_asyncrunner.py