/*
    *  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.commons.compress.archivers.zip;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotEquals;
  import static org.junit.jupiter.api.Assertions.assertNotSame;
  
  import org.junit.jupiter.api.Test;
  
  /**
   * JUnit tests for org.apache.commons.compress.archivers.zip.ZipLong.
   */
  public class ZipLongTest {
  
      @Test
      public void testClone() {
          final ZipLong s1 = new ZipLong(42);
          final ZipLong s2 = (ZipLong) s1.clone();
          assertNotSame(s1, s2);
          assertEquals(s1, s2);
          assertEquals(s1.getValue(), s2.getValue());
      }
  
      /**
       * Test the contract of the equals method.
       */
      @Test
      public void testEquals() {
          final ZipLong zl = new ZipLong(0x12345678);
          final ZipLong zl2 = new ZipLong(0x12345678);
          final ZipLong zl3 = new ZipLong(0x87654321);
  
          assertEquals(zl, zl, "reflexive");
  
          assertEquals(zl, zl2, "works");
          assertNotEquals(zl, zl3, "works, part two");
  
          assertEquals(zl2, zl, "symmetric");
  
          assertNotEquals(null, zl, "null handling");
          assertNotEquals(zl, Integer.valueOf(0x1234), "non ZipLong handling");
      }
  
      /**
       * Test conversion from bytes.
       */
      @Test
      public void testFromBytes() {
          final byte[] val = { 0x78, 0x56, 0x34, 0x12 };
          final ZipLong zl = new ZipLong(val);
          assertEquals(0x12345678, zl.getValue(), "value from bytes");
      }
  
      /**
       * Test conversion to bytes.
       */
      @Test
      public void testPut() {
          final byte[] arr = new byte[5];
          ZipLong.putLong(0x12345678, arr, 1);
          assertEquals(0x78, arr[1], "first byte getBytes");
          assertEquals(0x56, arr[2], "second byte getBytes");
          assertEquals(0x34, arr[3], "third byte getBytes");
          assertEquals(0x12, arr[4], "fourth byte getBytes");
      }
  
      /**
       * Test sign handling.
       */
      @Test
      public void testSign() {
          ZipLong zl = new ZipLong(new byte[] { (byte) 0xFF, (byte) 0xFF, (byte) 0xFF, (byte) 0xFF });
          assertEquals(0x00000000FFFFFFFFL, zl.getValue());
          assertEquals(-1, zl.getIntValue());
  
          zl = new ZipLong(0xFFFF_FFFFL);
          assertEquals(0x00000000FFFFFFFFL, zl.getValue());
          zl = new ZipLong(0xFFFF_FFFF);
          assertEquals(0xFFFF_FFFF_FFFF_FFFFL, zl.getValue());
  
      }
  
      /**
      * Test conversion to bytes.
      */
     @Test
     public void testToBytes() {
         final ZipLong zl = new ZipLong(0x12345678);
         final byte[] result = zl.getBytes();
         assertEquals(4, result.length, "length getBytes");
         assertEquals(0x78, result[0], "first byte getBytes");
         assertEquals(0x56, result[1], "second byte getBytes");
         assertEquals(0x34, result[2], "third byte getBytes");
         assertEquals(0x12, result[3], "fourth byte getBytes");
     }
 }