That is because the EmbeddedChannel not really support running scheduled tasks by itself as everything is just done in the calling thread. Just call `runPendingTasks()` after the sleep and it should have the effect you expect.
> On 27. Mar 2017, at 09:20, 'Roger Varley' via Netty discussions > <[email protected]> wrote: > > Hi > > I am new to Netty (using 4.0.24-Final) so I am probably missing something > vital. I am trying to write a JUnit test to check that I can handle a client > that simply dies in mid-transmission. I am simulating this by sending a short > message that never completes. I was expecting the ReadTimeoutHandler to fire > and the ExceptionHandler would close the connection. However, I can see > through debug that the ReadTimeoutHandler never fires and the > ExceptionHandler is never called. > > > > > This is my unit test > > @Test > public void > ifMessageDataLengthIsLessThanLengthDeclaredThenConnectionIsClosed() { > > int MAX_EXPECTED_MESSAGE_LENGTH_IN_BYTES = 20; > int TIME_OUT_IN_SECS = 4; > byte[] bytes = new byte[] {0x09, 0x01, 0x02, 0x03, 0x04, 0x05}; > > EmbeddedChannel channel = new EmbeddedChannel(new > ReadTimeoutHandler(TIME_OUT_IN_SECS) > , new > LengthFieldBasedFrameDecoder(MAX_EXPECTED_MESSAGE_LENGTH_IN_BYTES,0,1,0,1) > , new ExceptionHandler()); > > channel.writeInbound(Unpooled.wrappedBuffer(bytes)); > > assertTrue(channel.isOpen()); > > sleepForMilliSecs((TIME_OUT_IN_SECS + 2) * 1000); > > assertTrue(!channel.isOpen()); > } > > > private void sleepForMilliSecs(int millis) { > try { > Thread.sleep(millis); > } catch (InterruptedException e) { > > } > > } > > and my ExceptionHandler > > public class ExceptionHandler extends ChannelInboundHandlerAdapter { > > @Override > public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) > throws Exception { > System.out.println("Exception handler is called with " + cause); > ctx.close(); > } > > } > > -- > You received this message because you are subscribed to the Google Groups > "Netty discussions" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] > <mailto:[email protected]>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/netty/d2f160ee-37a7-4af8-a205-ab5787ab0dff%40googlegroups.com > > <https://groups.google.com/d/msgid/netty/d2f160ee-37a7-4af8-a205-ab5787ab0dff%40googlegroups.com?utm_medium=email&utm_source=footer>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- You received this message because you are subscribed to the Google Groups "Netty discussions" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/netty/7D1EAB61-AB6C-435C-B0F9-0B91AE700F1D%40googlemail.com. For more options, visit https://groups.google.com/d/optout.
