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Java example source code file (SpdyHeaderBlockRawDecoderTest.java)

This example Java source code file (SpdyHeaderBlockRawDecoderTest.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, defaultspdyheadersframe, exception, spdyheaderblockrawdecodertest, string, test

The SpdyHeaderBlockRawDecoderTest.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.spdy;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufAllocator;
import io.netty.buffer.Unpooled;
import io.netty.util.ReferenceCountUtil;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

public class SpdyHeaderBlockRawDecoderTest {

    private static final int maxHeaderSize = 16;

    private static final String name = "name";
    private static final String value = "value";
    private static final byte[] nameBytes = name.getBytes();
    private static final byte[] valueBytes = value.getBytes();

    private SpdyHeaderBlockRawDecoder decoder;
    private SpdyHeadersFrame frame;

    @Before
    public void setUp() {
        decoder = new SpdyHeaderBlockRawDecoder(SpdyVersion.SPDY_3_1, maxHeaderSize);
        frame = new DefaultSpdyHeadersFrame(1);
    }

    @After
    public void tearDown() {
        decoder.end();
    }

    @Test
    public void testEmptyHeaderBlock() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.EMPTY_BUFFER);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);
        decoder.endHeaderBlock(frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isInvalid());
        assertEquals(0, frame.headers().names().size());
    }

    @Test
    public void testZeroNameValuePairs() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(4));
        headerBlock.writeInt(0);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);
        decoder.endHeaderBlock(frame);

        assertFalse(headerBlock.isReadable());
        assertFalse(frame.isInvalid());
        assertEquals(0, frame.headers().names().size());
    }

    @Test
    public void testNegativeNameValuePairs() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(4));
        headerBlock.writeInt(-1);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isInvalid());
        assertEquals(0, frame.headers().names().size());
    }

    @Test
    public void testOneNameValuePair() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(21));
        headerBlock.writeInt(1);
        headerBlock.writeInt(4);
        headerBlock.writeBytes(nameBytes);
        headerBlock.writeInt(5);
        headerBlock.writeBytes(valueBytes);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);
        decoder.endHeaderBlock(frame);

        assertFalse(headerBlock.isReadable());
        assertFalse(frame.isInvalid());
        assertEquals(1, frame.headers().names().size());
        assertTrue(frame.headers().contains(name));
        assertEquals(1, frame.headers().getAll(name).size());
        assertEquals(value, frame.headers().get(name));
    }

    @Test
    public void testMissingNameLength() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(4));
        headerBlock.writeInt(1);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);
        decoder.endHeaderBlock(frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isInvalid());
        assertEquals(0, frame.headers().names().size());
    }

    @Test
    public void testZeroNameLength() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(8));
        headerBlock.writeInt(1);
        headerBlock.writeInt(0);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isInvalid());
        assertEquals(0, frame.headers().names().size());
    }

    @Test
    public void testNegativeNameLength() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(8));
        headerBlock.writeInt(1);
        headerBlock.writeInt(-1);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isInvalid());
        assertEquals(0, frame.headers().names().size());
    }

    @Test
    public void testMissingName() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(8));
        headerBlock.writeInt(1);
        headerBlock.writeInt(4);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);
        decoder.endHeaderBlock(frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isInvalid());
        assertEquals(0, frame.headers().names().size());
    }

    @Test
    public void testIllegalNameOnlyNull() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(18));
        headerBlock.writeInt(1);
        headerBlock.writeInt(1);
        headerBlock.writeByte(0);
        headerBlock.writeInt(5);
        headerBlock.writeBytes(valueBytes);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isInvalid());
        assertEquals(0, frame.headers().names().size());
    }

    @Test
    public void testMissingValueLength() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(12));
        headerBlock.writeInt(1);
        headerBlock.writeInt(4);
        headerBlock.writeBytes(nameBytes);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);
        decoder.endHeaderBlock(frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isInvalid());
        assertEquals(0, frame.headers().names().size());
    }

    @Test
    public void testZeroValueLength() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(16));
        headerBlock.writeInt(1);
        headerBlock.writeInt(4);
        headerBlock.writeBytes(nameBytes);
        headerBlock.writeInt(0);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);
        decoder.endHeaderBlock(frame);

        assertFalse(headerBlock.isReadable());
        assertFalse(frame.isInvalid());
        assertEquals(1, frame.headers().names().size());
        assertTrue(frame.headers().contains(name));
        assertEquals(1, frame.headers().getAll(name).size());
        assertEquals("", frame.headers().get(name));
    }

    @Test
    public void testNegativeValueLength() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(16));
        headerBlock.writeInt(1);
        headerBlock.writeInt(4);
        headerBlock.writeBytes(nameBytes);
        headerBlock.writeInt(-1);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isInvalid());
        assertEquals(0, frame.headers().names().size());
    }

    @Test
    public void testMissingValue() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(16));
        headerBlock.writeInt(1);
        headerBlock.writeInt(4);
        headerBlock.writeBytes(nameBytes);
        headerBlock.writeInt(5);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);
        decoder.endHeaderBlock(frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isInvalid());
        assertEquals(0, frame.headers().names().size());
    }

    @Test
    public void testIllegalValueOnlyNull() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(17));
        headerBlock.writeInt(1);
        headerBlock.writeInt(4);
        headerBlock.writeBytes(nameBytes);
        headerBlock.writeInt(1);
        headerBlock.writeByte(0);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isInvalid());
        assertEquals(0, frame.headers().names().size());
    }

    @Test
    public void testIllegalValueStartsWithNull() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(22));
        headerBlock.writeInt(1);
        headerBlock.writeInt(4);
        headerBlock.writeBytes(nameBytes);
        headerBlock.writeInt(6);
        headerBlock.writeByte(0);
        headerBlock.writeBytes(valueBytes);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isInvalid());
        assertEquals(0, frame.headers().names().size());
    }

    @Test
    public void testIllegalValueEndsWithNull() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(22));
        headerBlock.writeInt(1);
        headerBlock.writeInt(4);
        headerBlock.writeBytes(nameBytes);
        headerBlock.writeInt(6);
        headerBlock.writeBytes(valueBytes);
        headerBlock.writeByte(0);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isInvalid());
        assertEquals(0, frame.headers().names().size());
    }

    @Test
    public void testMultipleValues() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(27));
        headerBlock.writeInt(1);
        headerBlock.writeInt(4);
        headerBlock.writeBytes(nameBytes);
        headerBlock.writeInt(11);
        headerBlock.writeBytes(valueBytes);
        headerBlock.writeByte(0);
        headerBlock.writeBytes(valueBytes);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);
        decoder.endHeaderBlock(frame);

        assertFalse(headerBlock.isReadable());
        assertFalse(frame.isInvalid());
        assertEquals(1, frame.headers().names().size());
        assertTrue(frame.headers().contains(name));
        assertEquals(2, frame.headers().getAll(name).size());
        assertEquals(value, frame.headers().getAll(name).get(0));
        assertEquals(value, frame.headers().getAll(name).get(1));
    }

    @Test
    public void testMultipleValuesEndsWithNull() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(28));
        headerBlock.writeInt(1);
        headerBlock.writeInt(4);
        headerBlock.writeBytes(nameBytes);
        headerBlock.writeInt(12);
        headerBlock.writeBytes(valueBytes);
        headerBlock.writeByte(0);
        headerBlock.writeBytes(valueBytes);
        headerBlock.writeByte(0);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isInvalid());
        assertEquals(1, frame.headers().names().size());
        assertTrue(frame.headers().contains(name));
        assertEquals(1, frame.headers().getAll(name).size());
        assertEquals(value, frame.headers().get(name));
    }

    @Test
    public void testIllegalValueMultipleNulls() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(28));
        headerBlock.writeInt(1);
        headerBlock.writeInt(4);
        headerBlock.writeBytes(nameBytes);
        headerBlock.writeInt(12);
        headerBlock.writeBytes(valueBytes);
        headerBlock.writeByte(0);
        headerBlock.writeByte(0);
        headerBlock.writeBytes(valueBytes);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);
        decoder.endHeaderBlock(frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isInvalid());
        assertEquals(0, frame.headers().names().size());
    }

    @Test
    public void testMissingNextNameValuePair() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(21));
        headerBlock.writeInt(2);
        headerBlock.writeInt(4);
        headerBlock.writeBytes(nameBytes);
        headerBlock.writeInt(5);
        headerBlock.writeBytes(valueBytes);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);
        decoder.endHeaderBlock(frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isInvalid());
        assertEquals(1, frame.headers().names().size());
        assertTrue(frame.headers().contains(name));
        assertEquals(1, frame.headers().getAll(name).size());
        assertEquals(value, frame.headers().get(name));
    }

    @Test
    public void testMultipleNames() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(38));
        headerBlock.writeInt(2);
        headerBlock.writeInt(4);
        headerBlock.writeBytes(nameBytes);
        headerBlock.writeInt(5);
        headerBlock.writeBytes(valueBytes);
        headerBlock.writeInt(4);
        headerBlock.writeBytes(nameBytes);
        headerBlock.writeInt(5);
        headerBlock.writeBytes(valueBytes);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isInvalid());
        assertEquals(1, frame.headers().names().size());
        assertTrue(frame.headers().contains(name));
        assertEquals(1, frame.headers().getAll(name).size());
        assertEquals(value, frame.headers().get(name));
    }

    @Test
    public void testExtraData() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(22));
        headerBlock.writeInt(1);
        headerBlock.writeInt(4);
        headerBlock.writeBytes(nameBytes);
        headerBlock.writeInt(5);
        headerBlock.writeBytes(valueBytes);
        headerBlock.writeByte(0);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isInvalid());
        assertEquals(1, frame.headers().names().size());
        assertTrue(frame.headers().contains(name));
        assertEquals(1, frame.headers().getAll(name).size());
        assertEquals(value, frame.headers().get(name));
    }

    @Test
    public void testMultipleDecodes() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(21));
        headerBlock.writeInt(1);
        headerBlock.writeInt(4);
        headerBlock.writeBytes(nameBytes);
        headerBlock.writeInt(5);
        headerBlock.writeBytes(valueBytes);

        int readableBytes = headerBlock.readableBytes();
        for (int i = 0; i < readableBytes; i++) {
            ByteBuf headerBlockSegment = headerBlock.slice(i, 1);
            decoder.decode(ByteBufAllocator.DEFAULT, headerBlockSegment, frame);
            assertFalse(headerBlockSegment.isReadable());
        }
        decoder.endHeaderBlock(frame);

        assertFalse(frame.isInvalid());
        assertEquals(1, frame.headers().names().size());
        assertTrue(frame.headers().contains(name));
        assertEquals(1, frame.headers().getAll(name).size());
        assertEquals(value, frame.headers().get(name));
    }

    @Test
    public void testContinueAfterInvalidHeaders() throws Exception {
        ByteBuf numHeaders = ReferenceCountUtil.releaseLater(Unpooled.buffer(4));
        numHeaders.writeInt(1);

        ByteBuf nameBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(8));
        nameBlock.writeInt(4);
        nameBlock.writeBytes(nameBytes);

        ByteBuf valueBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(9));
        valueBlock.writeInt(5);
        valueBlock.writeBytes(valueBytes);

        decoder.decode(ByteBufAllocator.DEFAULT, numHeaders, frame);
        decoder.decode(ByteBufAllocator.DEFAULT, nameBlock, frame);
        frame.setInvalid();
        decoder.decode(ByteBufAllocator.DEFAULT, valueBlock, frame);
        decoder.endHeaderBlock(frame);

        assertFalse(numHeaders.isReadable());
        assertFalse(nameBlock.isReadable());
        assertFalse(valueBlock.isReadable());
        assertEquals(1, frame.headers().names().size());
        assertTrue(frame.headers().contains(name));
        assertEquals(1, frame.headers().getAll(name).size());
        assertEquals(value, frame.headers().get(name));
    }

    @Test
    public void testTruncatedHeaderName() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(maxHeaderSize + 18));
        headerBlock.writeInt(1);
        headerBlock.writeInt(maxHeaderSize + 1);
        for (int i = 0; i < maxHeaderSize + 1; i++) {
            headerBlock.writeByte('a');
        }
        headerBlock.writeInt(5);
        headerBlock.writeBytes(valueBytes);
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);
        decoder.endHeaderBlock(frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isTruncated());
        assertFalse(frame.isInvalid());
        assertEquals(0, frame.headers().names().size());
    }

    @Test
    public void testTruncatedHeaderValue() throws Exception {
        ByteBuf headerBlock = ReferenceCountUtil.releaseLater(Unpooled.buffer(maxHeaderSize + 13));
        headerBlock.writeInt(1);
        headerBlock.writeInt(4);
        headerBlock.writeBytes(nameBytes);
        headerBlock.writeInt(13);
        for (int i = 0; i < maxHeaderSize - 3; i++) {
            headerBlock.writeByte('a');
        }
        decoder.decode(ByteBufAllocator.DEFAULT, headerBlock, frame);
        decoder.endHeaderBlock(frame);

        assertFalse(headerBlock.isReadable());
        assertTrue(frame.isTruncated());
        assertFalse(frame.isInvalid());
        assertEquals(0, frame.headers().names().size());
    }
}

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