/*
    * Copyright (C) 2013, Matthias Sohn <matthias.sohn@sap.com>
    * 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.pgm;
  
  import static org.junit.Assert.assertArrayEquals;
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertTrue;
  import static org.junit.Assert.fail;
  
  import java.util.Arrays;
  
  import org.eclipse.jgit.api.Git;
  import org.eclipse.jgit.lib.CLIRepositoryTestCase;
  import org.eclipse.jgit.pgm.internal.CLIText;
  import org.junit.Before;
  import org.junit.Test;
  
  public class DescribeTest extends CLIRepositoryTestCase {
  
  	private Git git;
  
  	@Override
  	@Before
  	public void setUp() throws Exception {
  		super.setUp();
  		git = new Git(db);
  	}
  
  	private void initialCommitAndTag() throws Exception {
  		git.commit().setMessage("initial commit").call();
  		git.tag().setName("v1.0").call();
  	}
  
  	private void secondCommit() throws Exception {
  		writeTrashFile("greeting", "Hello, world!");
  		git.add().addFilepattern("greeting").call();
  		git.commit().setMessage("2nd commit").call();
  	}
  
  	@Test
  	public void testNoHead() throws Exception {
  		assertEquals(CLIText.fatalError(CLIText.get().noNamesFound),
  				toString(executeUnchecked("git describe")));
  	}
  
  	@Test
  	public void testHeadNoTag() throws Exception {
  		git.commit().setMessage("initial commit").call();
  		assertEquals(CLIText.fatalError(CLIText.get().noNamesFound),
  				toString(executeUnchecked("git describe")));
  	}
  
  	@Test
  	public void testDescribeTag() throws Exception {
  		initialCommitAndTag();
  		assertArrayEquals(new String[] { "v1.0", "" },
  				execute("git describe HEAD"));
  	}
 
 	@Test
 	public void testDescribeCommit() throws Exception {
 		initialCommitAndTag();
 		secondCommit();
 		assertArrayEquals(new String[] { "v1.0-1-g56f6ceb", "" },
 				execute("git describe"));
 	}
 
 	@Test
 	public void testDescribeTagLong() throws Exception {
 		initialCommitAndTag();
 		assertArrayEquals(new String[] { "v1.0-0-g6fd41be", "" },
 				execute("git describe --long HEAD"));
 	}
 
 	@Test
 	public void testDescribeCommitMatch() throws Exception {
 		initialCommitAndTag();
 		secondCommit();
 		assertArrayEquals(new String[] { "v1.0-1-g56f6ceb", "" },
 				execute("git describe --match v1.*"));
 	}
 
 	@Test
 	public void testDescribeCommitMatch2() throws Exception {
 		initialCommitAndTag();
 		secondCommit();
 		git.tag().setName("v2.0").call();
 		assertArrayEquals(new String[] { "v1.0-1-g56f6ceb", "" },
 				execute("git describe --match v1.*"));
 	}
 
 	@Test
 	public void testDescribeCommitMultiMatch() throws Exception {
 		initialCommitAndTag();
 		secondCommit();
 		git.tag().setName("v2.0.0").call();
 		git.tag().setName("v2.1.1").call();
 		assertArrayEquals("git yields v2.0.0", new String[] { "v2.0.0", "" },
 				execute("git describe --match v2.0* --match v2.1.*"));
 	}
 
 	@Test
 	public void testDescribeCommitNoMatch() throws Exception {
 		initialCommitAndTag();
 		writeTrashFile("greeting", "Hello, world!");
 		secondCommit();
 		try {
 			execute("git describe --match 1.*");
 			fail("git describe should not find any tag matching 1.*");
 		} catch (Die e) {
 			assertEquals("No names found, cannot describe anything.",
 					e.getMessage());
 		}
 	}
 
 	@Test
 	public void testHelpArgumentBeforeUnknown() throws Exception {
 		String[] output = execute("git describe -h -XYZ");
 		String all = Arrays.toString(output);
 		assertTrue("Unexpected help output: " + all,
 				all.contains("jgit describe"));
 		assertFalse("Unexpected help output: " + all, all.contains("fatal"));
 	}
 
 	@Test
 	public void testHelpArgumentAfterUnknown() throws Exception {
 		String[] output = executeUnchecked("git describe -XYZ -h");
 		String all = Arrays.toString(output);
 		assertTrue("Unexpected help output: " + all,
 				all.contains("jgit describe"));
 		assertTrue("Unexpected help output: " + all, all.contains("fatal"));
 	}
 }