1 /*
2 * Copyright (C) 2018, Thomas Wolf <thomas.wolf@paranor.ch>
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.lib;
44
45 import static org.junit.Assert.assertTrue;
46
47 import java.util.List;
48
49 import org.eclipse.jgit.api.Git;
50 import org.eclipse.jgit.junit.RepositoryTestCase;
51 import org.eclipse.jgit.revwalk.RevCommit;
52 import org.eclipse.jgit.storage.file.WindowCacheConfig;
53 import org.eclipse.jgit.storage.pack.PackConfig;
54 import org.junit.Test;
55
56 public class HugeCommitMessageTest extends RepositoryTestCase {
57
58 private static final int HUGE_SIZE = Math.max(15 * WindowCacheConfig.MB,
59 PackConfig.DEFAULT_BIG_FILE_THRESHOLD + WindowCacheConfig.MB);
60 // Larger than the 5MB fallback limit in RevWalk.getCachedBytes(RevObject
61 // obj, ObjectLoader ldr), and also larger than the default
62 // streamFileThreshold.
63
64 @Test
65 public void testHugeCommitMessage() throws Exception {
66 try (Git git = new Git(db)) {
67 writeTrashFile("foo", "foo");
68 git.add().addFilepattern("foo").call();
69 WindowCacheConfig wc = new WindowCacheConfig();
70 wc.setStreamFileThreshold(HUGE_SIZE + WindowCacheConfig.MB);
71 wc.install();
72 RevCommit commit = git.commit()
73 .setMessage(insanelyHugeCommitMessage()).call();
74 Ref master = db.findRef("master");
75 List<Ref> actual = git.branchList().setContains(commit.getName())
76 .call();
77 assertTrue("Should be contained in branch master",
78 actual.contains(master));
79 }
80 }
81
82 private String insanelyHugeCommitMessage() {
83 final String oneLine = "012345678901234567890123456789012345678901234567890123456789\n";
84 StringBuilder b = new StringBuilder(HUGE_SIZE + oneLine.length());
85 // Give the message a real header; otherwise even writing the reflog
86 // message may run into troubles because RevCommit.getShortMessage()
87 // will return the whole message.
88 b.append("An insanely huge commit message\n\n");
89 while (b.length() < HUGE_SIZE) {
90 b.append(oneLine);
91 }
92 return b.toString();
93 }
94
95 }