EmbeddedChannel extends AbstractChannel { public long runScheduledPendingTasks() { try { return loop.runScheduledTasks(); } catch (Exception e) { recordException(e); return loop.nextScheduledTask(); } } EmbeddedChannel();  EmbeddedChannel(ChannelId channelId);  EmbeddedChannel(ChannelHandler... handlers);  EmbeddedChannel(boolean hasDisconnect, ChannelHandler... handlers);  EmbeddedChannel(boolean register, boolean hasDisconnect, ChannelHandler... handlers);  EmbeddedChannel(ChannelId channelId, ChannelHandler... handlers);  EmbeddedChannel(ChannelId channelId, boolean hasDisconnect, ChannelHandler... handlers);  EmbeddedChannel(ChannelId channelId, boolean register, boolean hasDisconnect,
                           final ChannelHandler... handlers);  EmbeddedChannel(ChannelId channelId, boolean hasDisconnect, final ChannelConfig config,
                           final ChannelHandler... handlers); void register(); @Override ChannelMetadata metadata(); @Override ChannelConfig config(); @Override boolean isOpen(); @Override boolean isActive(); Queue<Object> inboundMessages(); @Deprecated Queue<Object> lastInboundBuffer(); Queue<Object> outboundMessages(); @Deprecated Queue<Object> lastOutboundBuffer(); @SuppressWarnings("unchecked") T readInbound(); @SuppressWarnings("unchecked") T readOutbound(); boolean writeInbound(Object... msgs); ChannelFuture writeOneInbound(Object msg); ChannelFuture writeOneInbound(Object msg, ChannelPromise promise); EmbeddedChannel flushInbound(); boolean writeOutbound(Object... msgs); ChannelFuture writeOneOutbound(Object msg); ChannelFuture writeOneOutbound(Object msg, ChannelPromise promise); EmbeddedChannel flushOutbound(); boolean finish(); boolean finishAndReleaseAll(); boolean releaseInbound(); boolean releaseOutbound(); @Override final ChannelFuture close(); @Override final ChannelFuture disconnect(); @Override final ChannelFuture close(ChannelPromise promise); @Override final ChannelFuture disconnect(ChannelPromise promise); void runPendingTasks(); long runScheduledPendingTasks(); void checkException(); @Override Unsafe unsafe();  }
@SuppressWarnings({ "rawtypes", "unchecked" }) @Test public void testScheduling() throws Exception { EmbeddedChannel ch = new EmbeddedChannel(new ChannelInboundHandlerAdapter()); final CountDownLatch latch = new CountDownLatch(2); ScheduledFuture future = ch.eventLoop().schedule(new Runnable() { @Override public void run() { latch.countDown(); } }, 1, TimeUnit.SECONDS); future.addListener(new FutureListener() { @Override public void operationComplete(Future future) throws Exception { latch.countDown(); } }); long next = ch.runScheduledPendingTasks(); assertTrue(next > 0); Thread.sleep(TimeUnit.NANOSECONDS.toMillis(next) + 50); assertEquals(-1, ch.runScheduledPendingTasks()); latch.await(); }