content: /*
   * 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.celeborn.common.util;
  
  import org.junit.Assert;
  import org.junit.Test;
  
  public class JavaUtilsSuite {
  
    @Test
    public void testNormalPackedPartitionId() {
      int[] arr = new int[1000];
      int[] inverse = new int[1000];
      JavaUtils.shuffleArray(arr, inverse);
      for (int i = 0; i < arr.length; i++) {
        Assert.assertTrue(i == inverse[arr[i]]);
      }
    }
  }
  