| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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 org.apache.cassandra.utils.bytecomparable; |
| |
| import java.nio.ByteBuffer; |
| import java.util.Random; |
| |
| import com.google.common.collect.ImmutableList; |
| import org.junit.Assert; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| import org.apache.cassandra.db.BufferDecoratedKey; |
| import org.apache.cassandra.db.DecoratedKey; |
| import org.apache.cassandra.dht.ByteOrderedPartitioner; |
| |
| @RunWith(Parameterized.class) |
| public class DecoratedKeyByteSourceTest |
| { |
| private static final int NUM_ITERATIONS = 100; |
| private static final int RANDOM_BYTES_LENGTH = 100; |
| |
| @Parameterized.Parameters(name = "version={0}") |
| public static Iterable<ByteComparable.Version> versions() |
| { |
| return ImmutableList.of(ByteComparable.Version.OSS50); |
| } |
| |
| private final ByteComparable.Version version; |
| |
| public DecoratedKeyByteSourceTest(ByteComparable.Version version) |
| { |
| this.version = version; |
| } |
| |
| @Test |
| public void testDecodeBufferDecoratedKey() |
| { |
| for (int i = 0; i < NUM_ITERATIONS; ++i) |
| { |
| BufferDecoratedKey initialBuffer = |
| (BufferDecoratedKey) ByteOrderedPartitioner.instance.decorateKey(newRandomBytesBuffer()); |
| BufferDecoratedKey decodedBuffer = BufferDecoratedKey.fromByteComparable( |
| initialBuffer, version, ByteOrderedPartitioner.instance); |
| Assert.assertEquals(initialBuffer, decodedBuffer); |
| } |
| } |
| |
| @Test |
| public void testDecodeKeyBytes() |
| { |
| for (int i = 0; i < NUM_ITERATIONS; ++i) |
| { |
| BufferDecoratedKey initialBuffer = |
| (BufferDecoratedKey) ByteOrderedPartitioner.instance.decorateKey(newRandomBytesBuffer()); |
| ByteSource.Peekable src = ByteSource.peekable(initialBuffer.asComparableBytes(version)); |
| byte[] keyBytes = DecoratedKey.keyFromByteSource(src, version, ByteOrderedPartitioner.instance); |
| Assert.assertEquals(ByteSource.END_OF_STREAM, src.next()); |
| Assert.assertArrayEquals(initialBuffer.getKey().array(), keyBytes); |
| } |
| } |
| |
| private static ByteBuffer newRandomBytesBuffer() |
| { |
| byte[] randomBytes = new byte[RANDOM_BYTES_LENGTH]; |
| new Random().nextBytes(randomBytes); |
| return ByteBuffer.wrap(randomBytes); |
| } |
| } |