/*
    * 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.assertArrayEquals;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import java.io.BufferedInputStream;
  import java.io.File;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  import java.nio.file.Files;
  import java.nio.file.Path;
  
  import org.apache.commons.compress.AbstractTest;
  import org.apache.commons.compress.compressors.lzma.LZMACompressorInputStream;
  import org.apache.commons.io.IOUtils;
  import org.junit.jupiter.api.Test;
  
  public final class LZMATest extends AbstractTest {
  
      @Test
      public void testLzmaRoundtrip() throws Exception {
          final Path input = getPath("test1.xml");
          final File compressed = newTempFile("test1.xml.xz");
          try (OutputStream out = Files.newOutputStream(compressed.toPath())) {
              try (CompressorOutputStream cos = new CompressorStreamFactory().createCompressorOutputStream("lzma", out)) {
                  Files.copy(input, cos);
              }
          }
          final byte[] orig = Files.readAllBytes(input);
          final byte[] uncompressed;
          try (InputStream is = Files.newInputStream(compressed.toPath());
                  CompressorInputStream in = new LZMACompressorInputStream(is)) {
              uncompressed = IOUtils.toByteArray(in);
          }
          assertArrayEquals(orig, uncompressed);
      }
  
      @Test
      public void testLZMAUnarchive() throws Exception {
          final File input = getFile("bla.tar.lzma");
          final File output = newTempFile("bla.tar");
          try (InputStream is = Files.newInputStream(input.toPath())) {
              try (CompressorInputStream in = new LZMACompressorInputStream(is)) {
                  Files.copy(in, output.toPath());
              }
          }
      }
  
      @Test
      public void testLZMAUnarchiveWithAutodetection() throws Exception {
          final File input = getFile("bla.tar.lzma");
          final File output = newTempFile("bla.tar");
          try (InputStream is = new BufferedInputStream(Files.newInputStream(input.toPath()))) {
              try (CompressorInputStream in = new CompressorStreamFactory().createCompressorInputStream(is)) {
                  Files.copy(in, output.toPath());
              }
          }
      }
  
      @Test
      public void testMultiByteReadConsistentlyReturnsMinusOneAtEof() throws IOException {
          final File input = getFile("bla.tar.lzma");
          final byte[] buf = new byte[2];
          try (InputStream is = Files.newInputStream(input.toPath())) {
              try (LZMACompressorInputStream in = new LZMACompressorInputStream(is)) {
                  IOUtils.toByteArray(in);
                  assertEquals(-1, in.read(buf));
                  assertEquals(-1, in.read(buf));
              }
          }
      }
  
      @Test
      public void testSingleByteReadConsistentlyReturnsMinusOneAtEof() throws IOException {
          final File input = getFile("bla.tar.lzma");
          try (InputStream is = Files.newInputStream(input.toPath())) {
              try (LZMACompressorInputStream in = new LZMACompressorInputStream(is)) {
                  IOUtils.toByteArray(in);
                  assertEquals(-1, in.read());
                  assertEquals(-1, in.read());
             }
         }
     }
 }