### Question:
DssHttpRequestHandler extends SimpleChannelInboundHandler<FullHttpRequest> { @Override public void channelReadComplete(ChannelHandlerContext ctx) { ctx.flush(); } DssHttpRequestHandler(String WEBSOCKET_PATH); @Override void channelReadComplete(ChannelHandlerContext ctx); @Override void exceptionCaught(ChannelHandlerContext ctx, Throwable cause);  }### Answer:
@Test void channelReadComplete() throws Exception { mockChannelHandlerContextChannelId(ctx, "abcedf"); final DssHttpRequestHandler handler = new DssHttpRequestHandler(WEBSOCKET_PATH); handler.channelRead(ctx, websocketRequest); handler.channelReadComplete(ctx); Mockito.verify(ctx).flush(); }