HashUtilTest.java

/*
 * 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.shindig.common.util;

import org.junit.Test;

import java.util.List;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;

public class HashUtilTest {
  @Test
  public void testChecksum() throws Exception {
    byte[] data = new byte[] {Byte.MAX_VALUE, Byte.MIN_VALUE};
    assertEquals("d41d8cd98f00b204e9800998ecf8427e", HashUtil.checksum(new byte[]{}));
    assertEquals("a494a8690b72391b13d3cbe27edb5c58", HashUtil.checksum(new byte[]{Byte.MAX_VALUE, Byte.MIN_VALUE}));
  }

  @Test(expected = NullPointerException.class)
  public void testChecksumNPE() {
    HashUtil.checksum(null);
  }

  @Test(expected = NullPointerException.class)
  public void testRawChecksumNPE() {
    HashUtil.rawChecksum(null);
  }

  @Test
  public void testRawChecksum() throws Exception {
    // this is lame, but different platforms/charsets mangle this.
    assertNotNull(HashUtil.rawChecksum(new byte[]{}));
    assertNotNull(HashUtil.rawChecksum(new byte[]{Byte.MAX_VALUE, Byte.MIN_VALUE}));
  }
}