| /* |
| * 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.dht; |
| |
| import org.junit.Test; |
| |
| public class Murmur3PartitionerTest extends PartitionerTestCase |
| { |
| public void initPartitioner() |
| { |
| partitioner = Murmur3Partitioner.instance; |
| } |
| |
| @Override |
| protected void midpointMinimumTestCase() |
| { |
| Token mintoken = partitioner.getMinimumToken(); |
| assert mintoken.compareTo(partitioner.midpoint(mintoken, mintoken)) != 0; |
| assertMidpoint(mintoken, tok("a"), 16); |
| assertMidpoint(mintoken, tok("aaa"), 16); |
| assertMidpoint(mintoken, mintoken, 62); |
| assertMidpoint(tok("a"), mintoken, 16); |
| } |
| |
| protected boolean shouldStopRecursion(Token left, Token right) |
| { |
| return left.size(right) < Math.scalb(1, -48); |
| } |
| |
| @Test |
| public void testSplit() |
| { |
| assertSplit(tok("a"), tok("b"), 16); |
| assertSplit(tok("a"), tok("bbb"), 16); |
| } |
| |
| @Test |
| public void testSplitWrapping() |
| { |
| assertSplit(tok("b"), tok("a"), 16); |
| assertSplit(tok("bbb"), tok("a"), 16); |
| } |
| |
| @Test |
| public void testSplitExceedMaximumCase() |
| { |
| Murmur3Partitioner.LongToken left = new Murmur3Partitioner.LongToken(Long.MAX_VALUE - 100); |
| assertSplit(left, tok("a"), 16); |
| } |
| } |
| |