/**
    *
    * Copyright 2018 The Apache Software Foundation
    *
    * Licensed 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.codehaus.plexus.archiver.jar;
  
  import java.io.File;
  import java.io.IOException;
  import java.io.InputStream;
  import java.nio.file.Files;
  import java.nio.file.Paths;
  import java.util.Calendar;
  import java.util.Enumeration;
  import java.util.Locale;
  import java.util.TimeZone;
  import java.util.zip.ZipEntry;
  import java.util.zip.ZipFile;
  
  import org.codehaus.plexus.archiver.ArchiverException;
  import org.codehaus.plexus.util.IOUtil;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  public abstract class BaseJarArchiverTest {
  
      /*
       * Verify that the JarArchiver implementation
       * could create basic JAR file
       */
      @Test
      void testCreateJar() throws IOException, ArchiverException {
          File jarFile = new File("target/output/testJar.jar");
          jarFile.delete();
  
          JarArchiver archiver = getJarArchiver();
          archiver.setDestFile(jarFile);
          archiver.addDirectory(new File("src/test/resources/java-classes"));
  
          archiver.createArchive();
  
          // verify that the JAR file is created and contains the expected files
          try (ZipFile resultingArchive = new ZipFile(jarFile)) {
              // verify that the JAR file contains manifest directory and file
              // and that those are the first two entries.
              Enumeration<? extends ZipEntry> resultingEntries = resultingArchive.entries();
              assertEquals("META-INF/", resultingEntries.nextElement().getName());
              assertEquals("META-INF/MANIFEST.MF", resultingEntries.nextElement().getName());
  
              // verify the JAR contains the class and it is not corrupted
              ZipEntry classFileEntry = resultingArchive.getEntry("com/example/app/Main.class");
              InputStream resultingClassFile = resultingArchive.getInputStream(classFileEntry);
              InputStream originalClassFile =
                      Files.newInputStream(Paths.get("src/test/resources/java-classes/com/example/app/Main.class"));
  
              assertTrue(IOUtil.contentEquals(originalClassFile, resultingClassFile));
          }
      }
  
      protected static long normalizeLastModifiedTime(long dosTime) {
          Calendar cal = Calendar.getInstance(TimeZone.getDefault(), Locale.ROOT);
          cal.setTimeInMillis(dosTime);
          return dosTime - (cal.get(Calendar.ZONE_OFFSET) + cal.get(Calendar.DST_OFFSET));
      }
  
      protected abstract JarArchiver getJarArchiver();
  }