/*
 * 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.compression;

import com.ning.compress.lzf.LZFEncoder;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.embedded.EmbeddedChannel;
import org.junit.Test;

import static com.ning.compress.lzf.LZFChunk.*;

public class LzfDecoderTest extends AbstractDecoderTest {

    public LzfDecoderTest() throws Exception {
    }

    @Override
    public void initChannel() {
        channel = new EmbeddedChannel(new LzfDecoder());
    }

    @Test
    public void testUnexpectedBlockIdentifier() throws Exception {
        expected.expect(DecompressionException.class);
        expected.expectMessage("unexpected block identifier");

        ByteBuf in = Unpooled.buffer();
        in.writeShort(0x1234);  //random value
        in.writeByte(BLOCK_TYPE_NON_COMPRESSED);
        in.writeShort(0);

        channel.writeInbound(in);
    }

    @Test
    public void testUnknownTypeOfChunk() throws Exception {
        expected.expect(DecompressionException.class);
        expected.expectMessage("unknown type of chunk");

        ByteBuf in = Unpooled.buffer();
        in.writeByte(BYTE_Z);
        in.writeByte(BYTE_V);
        in.writeByte(0xFF);   //random value
        in.writeInt(0);

        channel.writeInbound(in);
    }

    @Override
    protected byte[] compress(byte[] data) throws Exception {
        return LZFEncoder.encode(data);
    }
}