/*
    * 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.compressors;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import java.io.File;
  import java.io.InputStream;
  import java.io.OutputStream;
  import java.lang.management.ManagementFactory;
  import java.nio.file.Files;
  
  import org.apache.commons.compress.AbstractTest;
  import org.apache.commons.compress.compressors.xz.XZCompressorInputStream;
  import org.junit.jupiter.api.Test;
  
  public final class XZTest extends AbstractTest {
  
      @Test
      public void testConcatenatedStreamsReadFirstOnly() throws Exception {
          final File input = getFile("multiple.xz");
          try (InputStream is = Files.newInputStream(input.toPath())) {
              try (CompressorInputStream in = new CompressorStreamFactory().createCompressorInputStream("xz", is)) {
                  assertEquals('a', in.read());
                  assertEquals(-1, in.read());
              }
          }
      }
  
      @Test
      public void testConcatenatedStreamsReadFully() throws Exception {
          final File input = getFile("multiple.xz");
          try (InputStream is = Files.newInputStream(input.toPath())) {
              try (CompressorInputStream in = new XZCompressorInputStream(is, true)) {
                  assertEquals('a', in.read());
                  assertEquals('b', in.read());
                  assertEquals(0, in.available());
                  assertEquals(-1, in.read());
              }
          }
      }
  
      @Test
      public void testXZCreation() throws Exception {
          final long max = ManagementFactory.getMemoryMXBean().getHeapMemoryUsage().getMax();
          System.out.println("XZTestCase: HeapMax=" + max + " bytes " + (double) max / (1024 * 1024) + " MB");
          final File input = getFile("test1.xml");
          final File output = newTempFile("test1.xml.xz");
          try (OutputStream out = Files.newOutputStream(output.toPath())) {
              try (CompressorOutputStream cos = new CompressorStreamFactory().createCompressorOutputStream("xz", out)) {
                  Files.copy(input.toPath(), cos);
              }
          }
      }
  
      @Test
      public void testXZUnarchive() throws Exception {
          final File input = getFile("bla.tar.xz");
          final File output = newTempFile("bla.tar");
          try (InputStream is = Files.newInputStream(input.toPath())) {
              try (CompressorInputStream in = new CompressorStreamFactory().createCompressorInputStream("xz", is)) {
                  Files.copy(in, output.toPath());
              }
          }
      }
  }