registerPromise = channel.newPromise();
assertFalse(oneTimeScheduledTaskExecuted.get());
channel.unsafe().register(loopB, registerPromise);
registerPromise.sync();
assertThat(channel.eventLoop(), instanceOf(PausableEventExecutor.class));
assertSame(loopB, ((PausableEventExecutor) channel.eventLoop()).unwrap());
assertTrue(scheduleFuture.sync().isSuccess());
assertTrue(oneTimeScheduledTaskExecuted.get());
}