def test_runningWhenStopped(self):
        c = task.Cooperator(started=False)
        c.start()
        c.stop()
        self.assertFalse(c.running)
L{Cooperator.running} reports C{False} after the L{Cooperator}
dataset/ETHPy150Open twisted/twisted/twisted/test/test_cooperator.py/CooperatorTests.test_runningWhenStopped