def test_itimer_real(self): import signal def sig_alrm(*args): self.called = True signal.signal(signal.SIGALRM, sig_alrm) old = signal.setitimer(signal.ITIMER_REAL, 1.0) assert old == (0, 0) val, interval = signal.getitimer(signal.ITIMER_REAL) assert val <= 1.0 assert interval == 0.0 signal.pause() assert self.called