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1   /*
2    * Copyright (C) 2015, Kaloyan Raev <kaloyan.r@zend.com>
3    * and other copyright owners as documented in the project's IP log.
4    *
5    * This program and the accompanying materials are made available
6    * under the terms of the Eclipse Distribution License v1.0 which
7    * accompanies this distribution, is reproduced below, and is
8    * available at http://www.eclipse.org/org/documents/edl-v10.php
9    *
10   * All rights reserved.
11   *
12   * Redistribution and use in source and binary forms, with or
13   * without modification, are permitted provided that the following
14   * conditions are met:
15   *
16   * - Redistributions of source code must retain the above copyright
17   *   notice, this list of conditions and the following disclaimer.
18   *
19   * - Redistributions in binary form must reproduce the above
20   *   copyright notice, this list of conditions and the following
21   *   disclaimer in the documentation and/or other materials provided
22   *   with the distribution.
23   *
24   * - Neither the name of the Eclipse Foundation, Inc. nor the
25   *   names of its contributors may be used to endorse or promote
26   *   products derived from this software without specific prior
27   *   written permission.
28   *
29   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
30   * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
31   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
34   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
35   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
36   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
38   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
40   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42   */
43  package org.eclipse.jgit.pgm;
44  
45  import static org.junit.Assert.assertArrayEquals;
46  import static org.junit.Assert.assertEquals;
47  import static org.junit.Assert.assertFalse;
48  import static org.junit.Assert.assertTrue;
49  
50  import org.eclipse.jgit.api.Git;
51  import org.eclipse.jgit.lib.CLIRepositoryTestCase;
52  import org.eclipse.jgit.revwalk.RevCommit;
53  import org.junit.Before;
54  import org.junit.Ignore;
55  import org.junit.Test;
56  
57  public class ResetTest extends CLIRepositoryTestCase {
58  
59  	private Git git;
60  
61  	@Override
62  	@Before
63  	public void setUp() throws Exception {
64  		super.setUp();
65  		git = new Git(db);
66  	}
67  
68  	@Test
69  	public void testPathOptionHelp() throws Exception {
70  		String[] result = execute("git reset -h");
71  		assertTrue("Unexpected argument: " + result[1],
72  				result[1].endsWith("[-- path ...]"));
73  	}
74  
75  	@Test
76  	public void testZombieArgument_Bug484951() throws Exception {
77  		String[] result = execute("git reset -h");
78  		assertFalse("Unexpected argument: " + result[0],
79  				result[0].contains("[VAL ...]"));
80  	}
81  
82  	@Test
83  	public void testResetSelf() throws Exception {
84  		RevCommit commit = git.commit().setMessage("initial commit").call();
85  		assertStringArrayEquals("",
86  				execute("git reset --hard " + commit.getId().name()));
87  		assertEquals(commit.getId(),
88  				git.getRepository().exactRef("HEAD").getObjectId());
89  	}
90  
91  	@Test
92  	public void testResetPrevious() throws Exception {
93  		RevCommit commit = git.commit().setMessage("initial commit").call();
94  		git.commit().setMessage("second commit").call();
95  		assertStringArrayEquals("",
96  				execute("git reset --hard " + commit.getId().name()));
97  		assertEquals(commit.getId(),
98  				git.getRepository().exactRef("HEAD").getObjectId());
99  	}
100 
101 	@Test
102 	public void testResetEmptyPath() throws Exception {
103 		RevCommit commit = git.commit().setMessage("initial commit").call();
104 		assertStringArrayEquals("",
105 				execute("git reset --hard " + commit.getId().name() + " --"));
106 		assertEquals(commit.getId(),
107 				git.getRepository().exactRef("HEAD").getObjectId());
108 	}
109 
110 	@Test
111 	public void testResetPathDoubleDash() throws Exception {
112 		resetPath(true, true);
113 	}
114 
115 	@Test
116 	public void testResetPathNoDoubleDash() throws Exception {
117 		resetPath(false, true);
118 	}
119 
120 	@Test
121 	public void testResetPathDoubleDashNoRef() throws Exception {
122 		resetPath(true, false);
123 	}
124 
125 	@Ignore("Currently we cannote recognize if a name is a commit-ish or a path, "
126 			+ "so 'git reset a' will not work if 'a' is not a branch name but a file path")
127 	@Test
128 	public void testResetPathNoDoubleDashNoRef() throws Exception {
129 		resetPath(false, false);
130 	}
131 
132 	private void resetPath(boolean useDoubleDash, boolean supplyCommit)
133 			throws Exception {
134 		// create files a and b
135 		writeTrashFile("a", "Hello world a");
136 		writeTrashFile("b", "Hello world b");
137 		// stage the files
138 		git.add().addFilepattern(".").call();
139 		// commit the files
140 		RevCommit commit = git.commit().setMessage("files a & b").call();
141 
142 		// change both files a and b
143 		writeTrashFile("a", "New Hello world a");
144 		writeTrashFile("b", "New Hello world b");
145 		// stage the files
146 		git.add().addFilepattern(".").call();
147 
148 		// reset only file a
149 		String cmd = String.format("git reset %s%s a",
150 				supplyCommit ? commit.getId().name() : "",
151 				useDoubleDash ? " --" : "");
152 		assertStringArrayEquals("", execute(cmd));
153 		assertEquals(commit.getId(),
154 				git.getRepository().exactRef("HEAD").getObjectId());
155 
156 		org.eclipse.jgit.api.Status status = git.status().call();
157 		// assert that file a is unstaged
158 		assertArrayEquals(new String[] { "a" },
159 				status.getModified().toArray());
160 		// assert that file b is still staged
161 		assertArrayEquals(new String[] { "b" },
162 				status.getChanged().toArray());
163 	}
164 
165 }