netconf/callhome-protocol/src/test/java/org/opendaylight/netconf/callhome/protocol/MinaSshNettyChannelTest.java

   1 /*
   2  * Copyright (c) 2016 Brocade Communication Systems and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.netconf.callhome.protocol;
   9
  10 import static org.junit.Assert.assertTrue;
  11 import static org.mockito.ArgumentMatchers.any;
  12 import static org.mockito.Mockito.doReturn;
  13 import static org.mockito.Mockito.mock;
  14 import static org.mockito.Mockito.times;
  15 import static org.mockito.Mockito.verify;
  16
  17 import io.netty.buffer.ByteBuf;
  18 import io.netty.buffer.ByteBufAllocator;
  19 import io.netty.buffer.EmptyByteBuf;
  20 import io.netty.channel.ChannelHandler;
  21 import io.netty.channel.ChannelHandlerContext;
  22 import io.netty.channel.ChannelOutboundHandlerAdapter;
  23 import io.netty.channel.ChannelPromise;
  24 import java.io.IOException;
  25 import org.junit.Before;
  26 import org.junit.Test;
  27 import org.opendaylight.netconf.shaded.sshd.client.channel.ClientChannel;
  28 import org.opendaylight.netconf.shaded.sshd.client.session.ClientSession;
  29 import org.opendaylight.netconf.shaded.sshd.common.io.IoInputStream;
  30 import org.opendaylight.netconf.shaded.sshd.common.io.IoOutputStream;
  31 import org.opendaylight.netconf.shaded.sshd.common.io.IoReadFuture;
  32 import org.opendaylight.netconf.shaded.sshd.common.io.IoWriteFuture;
  33 import org.opendaylight.netconf.shaded.sshd.common.util.buffer.Buffer;
  34
  35 public class MinaSshNettyChannelTest {
  36     private CallHomeSessionContext mockContext;
  37     private ClientSession mockSession;
  38     private ClientChannel mockChannel;
  39     private MinaSshNettyChannel instance;
  40
  41     @Before
  42     public void setup() throws IOException {
  43         IoReadFuture mockFuture = mock(IoReadFuture.class);
  44         IoInputStream mockIn = mock(IoInputStream.class);
  45         doReturn(mockFuture).when(mockIn).read(any(Buffer.class));
  46         mockContext = mock(CallHomeSessionContext.class);
  47         mockSession = mock(ClientSession.class);
  48         mockChannel = mock(ClientChannel.class);
  49         doReturn(mockIn).when(mockChannel).getAsyncOut();
  50
  51         IoOutputStream mockOut = mock(IoOutputStream.class);
  52         doReturn(mockOut).when(mockChannel).getAsyncIn();
  53
  54         IoWriteFuture mockWrFuture = mock(IoWriteFuture.class);
  55         doReturn(false).when(mockOut).isClosed();
  56         doReturn(false).when(mockOut).isClosing();
  57         doReturn(mockWrFuture).when(mockOut).writeBuffer(any(Buffer.class));
  58         doReturn(null).when(mockWrFuture).addListener(any());
  59
  60         doReturn(mockFuture).when(mockFuture).addListener(any());
  61
  62         instance = new MinaSshNettyChannel(mockContext, mockSession, mockChannel);
  63     }
  64
  65     @Test
  66     public void ourChannelHandlerShouldBeFirstInThePipeline() {
  67         // given
  68         ChannelHandler firstHandler = instance.pipeline().first();
  69         String firstName = firstHandler.getClass().getName();
  70         // expect
  71         assertTrue(firstName.contains("callhome"));
  72     }
  73
  74     @Test
  75     public void ourChannelHandlerShouldForwardWrites() throws Exception {
  76         ChannelHandler mockHandler = mock(ChannelHandler.class);
  77         ChannelHandlerContext ctx = mock(ChannelHandlerContext.class);
  78         doReturn(mockHandler).when(ctx).handler();
  79         ChannelPromise promise = mock(ChannelPromise.class);
  80
  81         // we would really like to just verify that the async handler write() was
  82         // called but it is a final class, so no mocking. instead we set up the
  83         // mock channel to have no async input, which will cause a failure later
  84         // on the write promise that we use as a cheap way to tell that write()
  85         // got called. ick.
  86
  87         doReturn(null).when(mockChannel).getAsyncIn();
  88         doReturn(null).when(promise).setFailure(any(Throwable.class));
  89
  90         // Need to reconstruct instance to pick up null async in above
  91         instance = new MinaSshNettyChannel(mockContext, mockSession, mockChannel);
  92
  93         // when
  94         ChannelOutboundHandlerAdapter outadapter = (ChannelOutboundHandlerAdapter) instance.pipeline().first();
  95         ByteBufAllocator mockAlloc = mock(ByteBufAllocator.class);
  96         ByteBuf bytes = new EmptyByteBuf(mockAlloc);
  97         outadapter.write(ctx, bytes, promise);
  98
  99         // then
 100         verify(promise, times(1)).setFailure(any(Throwable.class));
 101     }
 102 }