/**
    * Logback: the reliable, generic, fast and flexible logging framework.
    * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
    *
    * This program and the accompanying materials are dual-licensed under
    * either the terms of the Eclipse Public License v1.0 as published by
    * the Eclipse Foundation
    *
    *   or (per the licensee's choosing)
   *
   * under the terms of the GNU Lesser General Public License version 2.1
   * as published by the Free Software Foundation.
   */
  package ch.qos.logback.core.encoder;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import java.util.Random;
  
  import org.junit.jupiter.api.Test;
  
  public class ByteArrayUtilTest {
  
      int BA_SIZE = 16;
      byte[] byteArray = new byte[BA_SIZE];
  
      Random random = new Random(18532235);
  
      @Test
      public void smoke() {
          verifyLoop(byteArray, 0, 0);
          verifyLoop(byteArray, 0, 10);
          verifyLoop(byteArray, 0, Integer.MAX_VALUE);
          verifyLoop(byteArray, 0, Integer.MIN_VALUE);
      }
  
      @Test
      public void random() {
          for (int i = 0; i < 100000; i++) {
              int rOffset = random.nextInt(BA_SIZE - 4);
              int rInt = random.nextInt();
              verifyLoop(byteArray, rOffset, rInt);
          }
      }
  
      void verifyLoop(byte[] ba, int offset, int expected) {
          ByteArrayUtil.writeInt(byteArray, offset, expected);
          int back = ByteArrayUtil.readInt(byteArray, offset);
          assertEquals(expected, back);
  
      }
  
  }