def test_after_fork_clears_mailbox_pool(self):
amqp = Mock(name='amqp')
self.app.amqp = amqp
closed_pool = Mock(name='closed pool')
amqp.producer_pool = closed_pool
assert closed_pool is self.app.control.mailbox.producer_pool
self.app.control._after_fork()
new_pool = Mock(name='new pool')
amqp.producer_pool = new_pool
assert new_pool is self.app.control.mailbox.producer_pool
