def startTest(self, test):
        unittest.TestResult.startTest(self, test)
        current_case = test.test.__class__.__name__

        if self.showAll:
            if current_case != self._last_case:
                self.stream.writeln(current_case)
                self._last_case = current_case
            # NOTE(salvatore-orlando):
            # slightly changed in order to print test case class
            # together with unit test name
            self.stream.write(
                str(test.test).ljust(60) % '    %s')
            self.stream.flush()
dataset/ETHPy150Open osrg/ryu/ryu/tests/test_lib.py/RyuTestResult.startTest/swapped operands of `%`