86 lines
2.8 KiB
Java
86 lines
2.8 KiB
Java
/*
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* Copyright 2012 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.handler.codec.compression.snappy;
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import static org.junit.Assert.assertArrayEquals;
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import io.netty.buffer.ByteBuf;
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import io.netty.buffer.Unpooled;
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import org.junit.Test;
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public class SnappyFramedEncoderTest {
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private final SnappyFramedEncoder encoder = new SnappyFramedEncoder();
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@Test
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public void testSmallAmountOfDataIsUncompressed() throws Exception {
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ByteBuf in = Unpooled.wrappedBuffer(new byte[] {
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'n', 'e', 't', 't', 'y'
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});
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ByteBuf out = Unpooled.buffer(21);
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encoder.encode(null, in, out);
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byte[] expected = {
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-0x80, 0x06, 0x00, 0x73, 0x4e, 0x61, 0x50, 0x70, 0x59,
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0x01, 0x05, 0x00, 0x2d, -0x5a, -0x7e, -0x5e, 'n', 'e', 't', 't', 'y'
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};
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assertArrayEquals(expected, out.array());
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}
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@Test
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public void testLargeAmountOfDataIsCompressed() throws Exception {
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ByteBuf in = Unpooled.wrappedBuffer(new byte[] {
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'n', 'e', 't', 't', 'y', 'n', 'e', 't', 't', 'y',
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'n', 'e', 't', 't', 'y', 'n', 'e', 't', 't', 'y'
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});
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ByteBuf out = Unpooled.buffer(26);
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encoder.encode(null, in, out);
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byte[] expected = {
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-0x80, 0x06, 0x00, 0x73, 0x4e, 0x61, 0x50, 0x70, 0x59,
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0x00, 0x14, 0x00, 0x7b, 0x1f, 0x65, 0x64,
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0x14, 0x10,
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'n', 'e', 't', 't', 'y',
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0x3a, 0x05, 0x00
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};
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assertArrayEquals(expected, out.array());
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}
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@Test
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public void testStreamStartIsOnlyWrittenOnce() throws Exception {
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ByteBuf in = Unpooled.wrappedBuffer(new byte[] {
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'n', 'e', 't', 't', 'y'
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});
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ByteBuf out = Unpooled.buffer(33);
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encoder.encode(null, in, out);
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in.readerIndex(0); // rewind the buffer to write the same data
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encoder.encode(null, in, out);
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byte[] expected = {
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-0x80, 0x06, 0x00, 0x73, 0x4e, 0x61, 0x50, 0x70, 0x59,
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0x01, 0x05, 0x00, 0x2d, -0x5a, -0x7e, -0x5e, 'n', 'e', 't', 't', 'y',
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0x01, 0x05, 0x00, 0x2d, -0x5a, -0x7e, -0x5e, 'n', 'e', 't', 't', 'y',
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};
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assertArrayEquals(expected, out.array());
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}
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}
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