content: package com.clearspring.analytics.hash;
  /**
   * 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.
   */
  
  import org.junit.Test;
  
  import static org.junit.Assert.assertEquals;
  
  /**
   * @author epollan
   */
  public class TestMurmurHash {
  
      @Test
      public void testHashByteArrayOverload() {
          String input = "hashthis";
          byte[] inputBytes = input.getBytes();
  
          int hashOfString = MurmurHash.hash(input);
          assertEquals("MurmurHash.hash(byte[]) did not match MurmurHash.hash(String)",
                       hashOfString, MurmurHash.hash(inputBytes));
  
          Object bytesAsObject = inputBytes;
          assertEquals("MurmurHash.hash(Object) given a byte[] did not match MurmurHash.hash(String)",
                       hashOfString, MurmurHash.hash(bytesAsObject));
      }
  
      @Test
      public void testHash64ByteArrayOverload() {
          String input = "hashthis";
          byte[] inputBytes = input.getBytes();
  
          long hashOfString = MurmurHash.hash64(input);
          assertEquals("MurmurHash.hash64(byte[]) did not match MurmurHash.hash64(String)",
                       hashOfString, MurmurHash.hash64(inputBytes));
  
          Object bytesAsObject = inputBytes;
          assertEquals("MurmurHash.hash64(Object) given a byte[] did not match MurmurHash.hash64(String)",
                       hashOfString, MurmurHash.hash64(bytesAsObject));
      }
  
      // test the returned valued of hash functions against the reference implementation: https://github.com/aappleby/smhasher.git
  
      @Test
      public void testHash64() throws Exception {
          final long actualHash = MurmurHash.hash64("hashthis");
          final long expectedHash = -8896273065425798843L;
  
          assertEquals("MurmurHash.hash64(String) returns wrong hash value", expectedHash, actualHash);
      }
  
      @Test
      public void testHash() throws Exception {
          final long actualHash = MurmurHash.hash("hashthis");
          final long expectedHash = -1974946086L;
  
          assertEquals("MurmurHash.hash(String) returns wrong hash value", expectedHash, actualHash);
      }
  }