/*
    * Copyright (C) 2017 Ericsson
    * and other copyright owners as documented in the project's IP log.
    *
    * This program and the accompanying materials are made available
    * under the terms of the Eclipse Distribution License v1.0 which
    * accompanies this distribution, is reproduced below, and is
    * available at http://www.eclipse.org/org/documents/edl-v10.php
    *
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or
   * without modification, are permitted provided that the following
   * conditions are met:
   *
   * - Redistributions of source code must retain the above copyright
   *   notice, this list of conditions and the following disclaimer.
   *
   * - Redistributions in binary form must reproduce the above
   *   copyright notice, this list of conditions and the following
   *   disclaimer in the documentation and/or other materials provided
   *   with the distribution.
   *
   * - Neither the name of the Eclipse Foundation, Inc. nor the
   *   names of its contributors may be used to endorse or promote
   *   products derived from this software without specific prior
   *   written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
   * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  package org.eclipse.jgit.internal.storage.file;
  
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertTrue;
  
  import java.io.File;
  import java.io.IOException;
  
  import org.junit.Before;
  import org.junit.Test;
  
  public class GcOrphanFilesTest extends GcTestCase {
  	private final static String PACK = "pack";
  
  	private final static String BITMAP_File_1 = PACK + "-1.bitmap";
  
  	private final static String IDX_File_2 = PACK + "-2.idx";
  
  	private final static String IDX_File_malformed = PACK + "-1234idx";
  
  	private final static String PACK_File_2 = PACK + "-2.pack";
  
  	private final static String PACK_File_3 = PACK + "-3.pack";
  
  	private File packDir;
  
  	@Override
  	@Before
  	public void setUp() throws Exception {
  		super.setUp();
  		packDir = new File(repo.getObjectsDirectory(), PACK);
  	}
  
  	@Test
  	public void bitmapAndIdxDeletedButPackNot() throws Exception {
  		createFileInPackFolder(BITMAP_File_1);
  		createFileInPackFolder(IDX_File_2);
  		createFileInPackFolder(PACK_File_3);
  		gc.gc();
  		assertFalse(new File(packDir, BITMAP_File_1).exists());
  		assertFalse(new File(packDir, IDX_File_2).exists());
  		assertTrue(new File(packDir, PACK_File_3).exists());
  	}
  
  	@Test
  	public void bitmapDeletedButIdxAndPackNot() throws Exception {
  		createFileInPackFolder(BITMAP_File_1);
  		createFileInPackFolder(IDX_File_2);
  		createFileInPackFolder(PACK_File_2);
  		createFileInPackFolder(PACK_File_3);
  		gc.gc();
  		assertFalse(new File(packDir, BITMAP_File_1).exists());
  		assertTrue(new File(packDir, IDX_File_2).exists());
  		assertTrue(new File(packDir, PACK_File_2).exists());
  		assertTrue(new File(packDir, PACK_File_3).exists());
  	}
 
 	@Test
 	public void malformedIdxNotDeleted() throws Exception {
 		createFileInPackFolder(IDX_File_malformed);
 		gc.gc();
 		assertTrue(new File(packDir, IDX_File_malformed).exists());
 	}
 
 	private void createFileInPackFolder(String fileName) throws IOException {
 		if (!packDir.exists() || !packDir.isDirectory()) {
 			assertTrue(packDir.mkdirs());
 		}
 		assertTrue(new File(packDir, fileName).createNewFile());
 	}
 
 	@Test
 	public void noSuchPackFolder() throws Exception {
 		assertTrue(packDir.delete());
 		gc.gc();
 	}
 }