test_unix_events.py 文件源码

def test_set_loop(self, m):
        # register a child
        callback = mock.Mock()

        with self.watcher:
            self.running = True
            self.watcher.add_child_handler(60, callback)

        # attach a new loop
        old_loop = self.loop
        self.loop = self.new_test_loop()
        patch = mock.patch.object

        with patch(old_loop, "remove_signal_handler") as m_old_remove, \
             patch(self.loop, "add_signal_handler") as m_new_add:

            self.watcher.attach_loop(self.loop)

            m_old_remove.assert_called_once_with(
                signal.SIGCHLD)
            m_new_add.assert_called_once_with(
                signal.SIGCHLD, self.watcher._sig_chld)

        # child terminates
        self.running = False
        self.add_zombie(60, 9)
        self.watcher._sig_chld()

        callback.assert_called_once_with(60, 9)