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- /*
- * Copyright (C) 2012, 2021 GitHub Inc. 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.internal.storage.file;
-
- import static org.junit.Assert.assertFalse;
- import static org.junit.Assert.assertNotNull;
- import static org.junit.Assert.assertThrows;
- import static org.junit.Assert.assertTrue;
- import static org.junit.Assert.fail;
-
- import java.io.File;
- import java.io.OutputStream;
- import java.nio.charset.StandardCharsets;
-
- import org.eclipse.jgit.api.Git;
- import org.eclipse.jgit.api.errors.JGitInternalException;
- import org.eclipse.jgit.errors.LockFailedException;
- import org.eclipse.jgit.junit.RepositoryTestCase;
- import org.eclipse.jgit.revwalk.RevCommit;
- import org.junit.Test;
-
- /**
- * Unit tests of {@link LockFile}
- */
- public class LockFileTest extends RepositoryTestCase {
-
- @Test
- public void lockFailedExceptionRecovery() throws Exception {
- try (Git git = new Git(db)) {
- writeTrashFile("file.txt", "content");
- git.add().addFilepattern("file.txt").call();
- RevCommit commit1 = git.commit().setMessage("create file").call();
-
- assertNotNull(commit1);
- writeTrashFile("file.txt", "content2");
- git.add().addFilepattern("file.txt").call();
- assertNotNull(git.commit().setMessage("edit file").call());
-
- LockFile lf = new LockFile(db.getIndexFile());
- assertTrue(lf.lock());
- try {
- git.checkout().setName(commit1.name()).call();
- fail("JGitInternalException not thrown");
- } catch (JGitInternalException e) {
- assertTrue(e.getCause() instanceof LockFailedException);
- lf.unlock();
- git.checkout().setName(commit1.name()).call();
- }
- }
- }
-
- @Test
- public void testLockTwice() throws Exception {
- File f = writeTrashFile("somefile", "content");
- LockFile lock = new LockFile(f);
- assertTrue(lock.lock());
- lock.write("other".getBytes(StandardCharsets.US_ASCII));
- lock.commit();
- assertFalse(lock.isLocked());
- checkFile(f, "other");
- assertTrue(lock.lock());
- assertTrue(lock.isLocked());
- try (OutputStream out = lock.getOutputStream()) {
- out.write("second".getBytes(StandardCharsets.US_ASCII));
- }
- lock.commit();
- assertFalse(lock.isLocked());
- checkFile(f, "second");
- }
-
- @Test
- public void testLockTwiceUnlock() throws Exception {
- File f = writeTrashFile("somefile", "content");
- LockFile lock = new LockFile(f);
- assertTrue(lock.lock());
- assertTrue(lock.isLocked());
- lock.write("other".getBytes(StandardCharsets.US_ASCII));
- lock.unlock();
- assertFalse(lock.isLocked());
- checkFile(f, "content");
- assertTrue(lock.lock());
- assertTrue(lock.isLocked());
- try (OutputStream out = lock.getOutputStream()) {
- out.write("second".getBytes(StandardCharsets.US_ASCII));
- }
- lock.commit();
- assertFalse(lock.isLocked());
- checkFile(f, "second");
- }
-
- @Test
- public void testLockWriteTwiceThrows1() throws Exception {
- File f = writeTrashFile("somefile", "content");
- LockFile lock = new LockFile(f);
- assertTrue(lock.lock());
- assertTrue(lock.isLocked());
- lock.write("other".getBytes(StandardCharsets.US_ASCII));
- assertThrows(Exception.class,
- () -> lock.write("second".getBytes(StandardCharsets.US_ASCII)));
- lock.unlock();
- }
-
- @Test
- public void testLockWriteTwiceThrows2() throws Exception {
- File f = writeTrashFile("somefile", "content");
- LockFile lock = new LockFile(f);
- assertTrue(lock.lock());
- assertTrue(lock.isLocked());
- try (OutputStream out = lock.getOutputStream()) {
- out.write("other".getBytes(StandardCharsets.US_ASCII));
- }
- assertThrows(Exception.class,
- () -> lock.write("second".getBytes(StandardCharsets.US_ASCII)));
- lock.unlock();
- }
-
- @Test
- public void testLockWriteTwiceThrows3() throws Exception {
- File f = writeTrashFile("somefile", "content");
- LockFile lock = new LockFile(f);
- assertTrue(lock.lock());
- assertTrue(lock.isLocked());
- lock.write("other".getBytes(StandardCharsets.US_ASCII));
- assertThrows(Exception.class, () -> {
- try (OutputStream out = lock.getOutputStream()) {
- out.write("second".getBytes(StandardCharsets.US_ASCII));
- }
- });
- lock.unlock();
- }
-
- @Test
- public void testLockWriteTwiceThrows4() throws Exception {
- File f = writeTrashFile("somefile", "content");
- LockFile lock = new LockFile(f);
- assertTrue(lock.lock());
- assertTrue(lock.isLocked());
- try (OutputStream out = lock.getOutputStream()) {
- out.write("other".getBytes(StandardCharsets.US_ASCII));
- }
- assertThrows(Exception.class, () -> {
- try (OutputStream out = lock.getOutputStream()) {
- out.write("second".getBytes(StandardCharsets.US_ASCII));
- }
- });
- lock.unlock();
- }
-
- @Test
- public void testLockUnclosedCommitThrows() throws Exception {
- File f = writeTrashFile("somefile", "content");
- LockFile lock = new LockFile(f);
- assertTrue(lock.lock());
- assertTrue(lock.isLocked());
- try (OutputStream out = lock.getOutputStream()) {
- out.write("other".getBytes(StandardCharsets.US_ASCII));
- assertThrows(Exception.class, () -> lock.commit());
- }
- }
-
- @Test
- public void testLockNested() throws Exception {
- File f = writeTrashFile("somefile", "content");
- LockFile lock = new LockFile(f);
- assertTrue(lock.lock());
- assertTrue(lock.isLocked());
- assertThrows(IllegalStateException.class, () -> lock.lock());
- assertTrue(lock.isLocked());
- lock.unlock();
- }
-
- @Test
- public void testLockHeld() throws Exception {
- File f = writeTrashFile("somefile", "content");
- LockFile lock = new LockFile(f);
- assertTrue(lock.lock());
- assertTrue(lock.isLocked());
- LockFile lock2 = new LockFile(f);
- assertFalse(lock2.lock());
- assertFalse(lock2.isLocked());
- assertTrue(lock.isLocked());
- lock.unlock();
- }
-
- @Test
- public void testLockForAppend() throws Exception {
- File f = writeTrashFile("somefile", "content");
- LockFile lock = new LockFile(f);
- assertTrue(lock.lockForAppend());
- assertTrue(lock.isLocked());
- lock.write("other".getBytes(StandardCharsets.US_ASCII));
- lock.commit();
- assertFalse(lock.isLocked());
- checkFile(f, "contentother");
- }
- }
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