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import sys import gevent.testing as greentest import gevent from gevent.hub import get_hub def raise_(ex): raise ex MSG = 'should be re-raised and caught' class Test(greentest.TestCase): x = None error_fatal = False def start(self, *args): raise NotImplementedError def setUp(self): self.x = None def test_sys_exit(self): self.start(sys.exit, MSG) try: gevent.sleep(0.001) except SystemExit as ex: assert str(ex) == MSG, repr(str(ex)) else: raise AssertionError('must raise SystemExit') def test_keyboard_interrupt(self): self.start(raise_, KeyboardInterrupt) try: gevent.sleep(0.001) except KeyboardInterrupt: pass else: raise AssertionError('must raise KeyboardInterrupt') def test_keyboard_interrupt_stderr_patched(self): from gevent import monkey monkey.patch_sys(stdin=False, stdout=False, stderr=True) try: try: self.start(raise_, KeyboardInterrupt) while True: gevent.sleep(0.1) except KeyboardInterrupt: pass # expected finally: sys.stderr = monkey.get_original('sys', 'stderr') def test_system_error(self): self.start(raise_, SystemError(MSG)) with self.assertRaisesRegex(SystemError, MSG): gevent.sleep(0.002) def test_exception(self): self.start(raise_, Exception('regular exception must not kill the program')) gevent.sleep(0.001) class TestCallback(Test): def tearDown(self): if self.x is not None: # libuv: See the notes in libuv/loop.py:loop._start_callback_timer # If that's broken, test_exception can fail sporadically. # If the issue is the same, then adding `gevent.sleep(0)` here # will solve it. There's also a race condition for the first loop, # so we sleep twice. assert not self.x.pending, self.x def start(self, *args): self.x = get_hub().loop.run_callback(*args) if greentest.LIBUV: def test_exception(self): # This call will enter the loop for the very first time (if we're running # standalone). On libuv, where timers run first, that means that depending on the # amount of time that elapses between the call to uv_timer_start and uv_run, # this timer might fire before our check or prepare watchers, and hence callbacks, # run. # We make this call now so that the call in the super class is guaranteed to be # somewhere in the loop and not subject to that race condition. gevent.sleep(0.001) super(TestCallback, self).test_exception() class TestSpawn(Test): def tearDown(self): gevent.sleep(0.0001) if self.x is not None: assert self.x.dead, self.x def start(self, *args): self.x = gevent.spawn(*args) del Test if __name__ == '__main__': greentest.main()