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/*
* Copyright (C) 2018, Thomas Wolf <thomas.wolf@paranor.ch> and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.lib;
import static org.junit.Assert.assertTrue;
import java.util.List;
import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.junit.RepositoryTestCase;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.storage.file.WindowCacheConfig;
import org.eclipse.jgit.storage.pack.PackConfig;
import org.junit.Test;
public class HugeCommitMessageTest extends RepositoryTestCase {
private static final int HUGE_SIZE = Math.max(15 * WindowCacheConfig.MB,
PackConfig.DEFAULT_BIG_FILE_THRESHOLD + WindowCacheConfig.MB);
// Larger than the 5MB fallback limit in RevWalk.getCachedBytes(RevObject
// obj, ObjectLoader ldr), and also larger than the default
// streamFileThreshold.
@Test
public void testHugeCommitMessage() throws Exception {
try (Git git = new Git(db)) {
writeTrashFile("foo", "foo");
git.add().addFilepattern("foo").call();
WindowCacheConfig wc = new WindowCacheConfig();
wc.setStreamFileThreshold(HUGE_SIZE + WindowCacheConfig.MB);
wc.install();
RevCommit commit = git.commit()
.setMessage(insanelyHugeCommitMessage()).call();
Ref master = db.findRef("master");
List<Ref> actual = git.branchList().setContains(commit.getName())
.call();
assertTrue("Should be contained in branch master",
actual.contains(master));
}
}
private String insanelyHugeCommitMessage() {
final String oneLine = "012345678901234567890123456789012345678901234567890123456789\n";
StringBuilder b = new StringBuilder(HUGE_SIZE + oneLine.length());
// Give the message a real header; otherwise even writing the reflog
// message may run into troubles because RevCommit.getShortMessage()
// will return the whole message.
b.append("An insanely huge commit message\n\n");
while (b.length() < HUGE_SIZE) {
b.append(oneLine);
}
return b.toString();
}
}
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