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Java example source code file (StompSubframeDecoderTest.java)

This example Java source code file (StompSubframeDecoderTest.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

after, before, bytebuf, embeddedchannel, exception, laststompcontentsubframe, object, stompcontentsubframe, stompheaderssubframe, stompsubframedecoder, stompsubframedecodertest, string, test

The StompSubframeDecoderTest.java Java example source code

/*
 * Copyright 2014 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package io.netty.handler.codec.stomp;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.embedded.EmbeddedChannel;
import io.netty.util.CharsetUtil;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import static org.junit.Assert.*;

public class StompSubframeDecoderTest {

    private EmbeddedChannel channel;

    @Before
    public void setup() throws Exception {
        channel = new EmbeddedChannel(new StompSubframeDecoder());
    }

    @After
    public void teardown() throws Exception {
        assertFalse(channel.finish());
    }

    @Test
    public void testSingleFrameDecoding() {
        ByteBuf incoming = Unpooled.buffer();
        incoming.writeBytes(StompTestConstants.CONNECT_FRAME.getBytes());
        channel.writeInbound(incoming);

        StompHeadersSubframe frame = channel.readInbound();
        assertNotNull(frame);
        assertEquals(StompCommand.CONNECT, frame.command());

        StompContentSubframe content = channel.readInbound();
        assertSame(LastStompContentSubframe.EMPTY_LAST_CONTENT, content);
        content.release();

        Object o = channel.readInbound();
        assertNull(o);
    }

    @Test
    public void testSingleFrameWithBodyAndContentLength() {
        ByteBuf incoming = Unpooled.buffer();
        incoming.writeBytes(StompTestConstants.SEND_FRAME_2.getBytes());
        channel.writeInbound(incoming);

        StompHeadersSubframe frame = channel.readInbound();
        assertNotNull(frame);
        assertEquals(StompCommand.SEND, frame.command());

        StompContentSubframe content = channel.readInbound();
        assertTrue(content instanceof LastStompContentSubframe);
        String s = content.content().toString(CharsetUtil.UTF_8);
        assertEquals("hello, queue a!!!", s);
        content.release();

        assertNull(channel.readInbound());
    }

    @Test
    public void testSingleFrameWithBodyWithoutContentLength() {
        ByteBuf incoming = Unpooled.buffer();
        incoming.writeBytes(StompTestConstants.SEND_FRAME_1.getBytes());
        channel.writeInbound(incoming);

        StompHeadersSubframe frame = channel.readInbound();
        assertNotNull(frame);
        assertEquals(StompCommand.SEND, frame.command());

        StompContentSubframe content = channel.readInbound();
        assertTrue(content instanceof LastStompContentSubframe);
        String s = content.content().toString(CharsetUtil.UTF_8);
        assertEquals("hello, queue a!", s);
        content.release();

        assertNull(channel.readInbound());
    }

    @Test
    public void testSingleFrameChunked() {
        EmbeddedChannel channel = new EmbeddedChannel(new StompSubframeDecoder(10000, 5));

        ByteBuf incoming = Unpooled.buffer();
        incoming.writeBytes(StompTestConstants.SEND_FRAME_2.getBytes());
        channel.writeInbound(incoming);

        StompHeadersSubframe frame = channel.readInbound();
        assertNotNull(frame);
        assertEquals(StompCommand.SEND, frame.command());

        StompContentSubframe content = channel.readInbound();
        String s = content.content().toString(CharsetUtil.UTF_8);
        assertEquals("hello", s);
        content.release();

        content = channel.readInbound();
        s = content.content().toString(CharsetUtil.UTF_8);
        assertEquals(", que", s);
        content.release();

        content = channel.readInbound();
        s = content.content().toString(CharsetUtil.UTF_8);
        assertEquals("ue a!", s);
        content.release();

        content = channel.readInbound();
        s = content.content().toString(CharsetUtil.UTF_8);
        assertEquals("!!", s);
        content.release();

        assertNull(channel.readInbound());
    }

    @Test
    public void testMultipleFramesDecoding() {
        ByteBuf incoming = Unpooled.buffer();
        incoming.writeBytes(StompTestConstants.CONNECT_FRAME.getBytes());
        incoming.writeBytes(StompTestConstants.CONNECTED_FRAME.getBytes());
        channel.writeInbound(incoming);

        StompHeadersSubframe frame = channel.readInbound();
        assertNotNull(frame);
        assertEquals(StompCommand.CONNECT, frame.command());

        StompContentSubframe content = channel.readInbound();
        assertSame(LastStompContentSubframe.EMPTY_LAST_CONTENT, content);
        content.release();

        StompHeadersSubframe frame2 = channel.readInbound();
        assertNotNull(frame2);
        assertEquals(StompCommand.CONNECTED, frame2.command());

        StompContentSubframe content2 = channel.readInbound();
        assertSame(LastStompContentSubframe.EMPTY_LAST_CONTENT, content2);
        content2.release();

        assertNull(channel.readInbound());
    }
}

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