/*
    * 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
    *
   *   https://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.assertArrayEquals;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertNotSame;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import org.junit.jupiter.api.Test;
  
  class GeneralPurposeBitTest {
  
      @Test
      void testClone() {
          final GeneralPurposeBit b = new GeneralPurposeBit();
          b.useStrongEncryption(true);
          b.useUTF8ForNames(true);
          assertEquals(b, b.clone());
          assertNotSame(b, b.clone());
      }
  
      @Test
      void testDataDescriptor() {
          final byte[] flags = { (byte) 8, (byte) 0 };
          assertTrue(GeneralPurposeBit.parse(flags, 0).usesDataDescriptor());
          final GeneralPurposeBit b = new GeneralPurposeBit();
          b.useDataDescriptor(true);
          assertArrayEquals(flags, b.encode());
      }
  
      @Test
      void testDefaults() {
          assertFalse(new GeneralPurposeBit().usesDataDescriptor());
          assertFalse(new GeneralPurposeBit().usesUTF8ForNames());
          assertFalse(new GeneralPurposeBit().usesEncryption());
          assertFalse(new GeneralPurposeBit().usesStrongEncryption());
          final byte[] b = new byte[2];
          assertArrayEquals(b, new GeneralPurposeBit().encode());
      }
  
      @Test
      void testEncryption() {
          final byte[] flags = { (byte) 1, (byte) 0 };
          assertTrue(GeneralPurposeBit.parse(flags, 0).usesEncryption());
          final GeneralPurposeBit b = new GeneralPurposeBit();
          b.useEncryption(true);
          assertArrayEquals(flags, b.encode());
      }
  
      @Test
      void testLanguageEncodingFlag() {
          final byte[] flags = { (byte) 0, (byte) 8 };
          assertTrue(GeneralPurposeBit.parse(flags, 0).usesUTF8ForNames());
          final GeneralPurposeBit b = new GeneralPurposeBit();
          b.useUTF8ForNames(true);
          assertArrayEquals(flags, b.encode());
      }
  
      @Test
      void testParseEdgeCases() {
          assertFalse(GeneralPurposeBit.parse(new byte[2], 0).usesDataDescriptor());
          assertFalse(GeneralPurposeBit.parse(new byte[2], 0).usesUTF8ForNames());
          assertFalse(GeneralPurposeBit.parse(new byte[2], 0).usesEncryption());
          assertFalse(GeneralPurposeBit.parse(new byte[2], 0).usesStrongEncryption());
          assertTrue(GeneralPurposeBit.parse(new byte[] { (byte) 255, (byte) 255 }, 0).usesDataDescriptor());
          assertTrue(GeneralPurposeBit.parse(new byte[] { (byte) 255, (byte) 255 }, 0).usesUTF8ForNames());
          assertTrue(GeneralPurposeBit.parse(new byte[] { (byte) 255, (byte) 255 }, 0).usesEncryption());
          assertTrue(GeneralPurposeBit.parse(new byte[] { (byte) 255, (byte) 255 }, 0).usesStrongEncryption());
      }
  
      @Test
      void testStrongEncryption() {
          byte[] flags = { (byte) 65, (byte) 0 };
          assertTrue(GeneralPurposeBit.parse(flags, 0).usesStrongEncryption());
          final GeneralPurposeBit b = new GeneralPurposeBit();
          b.useStrongEncryption(true);
          assertTrue(b.usesEncryption());
          assertArrayEquals(flags, b.encode());
  
          flags = new byte[] { (byte) 64, (byte) 0 };
         assertFalse(GeneralPurposeBit.parse(flags, 0).usesStrongEncryption());
     }
 }