test_system.py 文件源码

def test_pid_exists(self):
        sproc = get_test_subprocess()
        self.assertTrue(psutil.pid_exists(sproc.pid))
        p = psutil.Process(sproc.pid)
        p.kill()
        p.wait()
        self.assertFalse(psutil.pid_exists(sproc.pid))
        self.assertFalse(psutil.pid_exists(-1))
        self.assertEqual(psutil.pid_exists(0), 0 in psutil.pids())
        # pid 0
        psutil.pid_exists(0) == 0 in psutil.pids()