| /* |
| * Copyright (C) 2009, Google 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.lib; |
| |
| import static org.hamcrest.CoreMatchers.hasItem; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertNotSame; |
| import static org.junit.Assert.assertSame; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import java.io.File; |
| import java.io.IOException; |
| |
| import org.eclipse.jgit.errors.RepositoryNotFoundException; |
| import org.eclipse.jgit.junit.RepositoryTestCase; |
| import org.eclipse.jgit.lib.RepositoryCache.FileKey; |
| import org.junit.Test; |
| |
| public class RepositoryCacheTest extends RepositoryTestCase { |
| @Test |
| public void testNonBareFileKey() throws IOException { |
| File gitdir = db.getDirectory(); |
| File parent = gitdir.getParentFile(); |
| File other = new File(parent, "notagit"); |
| assertEqualsFile(gitdir, FileKey.exact(gitdir, db.getFS()).getFile()); |
| assertEqualsFile(parent, FileKey.exact(parent, db.getFS()).getFile()); |
| assertEqualsFile(other, FileKey.exact(other, db.getFS()).getFile()); |
| |
| assertEqualsFile(gitdir, FileKey.lenient(gitdir, db.getFS()).getFile()); |
| assertEqualsFile(gitdir, FileKey.lenient(parent, db.getFS()).getFile()); |
| assertEqualsFile(other, FileKey.lenient(other, db.getFS()).getFile()); |
| } |
| |
| @Test |
| public void testBareFileKey() throws IOException { |
| Repository bare = createBareRepository(); |
| File gitdir = bare.getDirectory(); |
| File parent = gitdir.getParentFile(); |
| String name = gitdir.getName(); |
| assertTrue(name.endsWith(".git")); |
| name = name.substring(0, name.length() - 4); |
| |
| assertEqualsFile(gitdir, FileKey.exact(gitdir, db.getFS()).getFile()); |
| |
| assertEqualsFile(gitdir, FileKey.lenient(gitdir, db.getFS()).getFile()); |
| assertEqualsFile(gitdir, |
| FileKey.lenient(new File(parent, name), db.getFS()).getFile()); |
| } |
| |
| @Test |
| public void testFileKeyOpenExisting() throws IOException { |
| try (Repository r = new FileKey(db.getDirectory(), db.getFS()) |
| .open(true)) { |
| assertNotNull(r); |
| assertEqualsFile(db.getDirectory(), r.getDirectory()); |
| } |
| |
| try (Repository r = new FileKey(db.getDirectory(), db.getFS()) |
| .open(false)) { |
| assertNotNull(r); |
| assertEqualsFile(db.getDirectory(), r.getDirectory()); |
| } |
| } |
| |
| @Test |
| public void testFileKeyOpenNew() throws IOException { |
| File gitdir; |
| try (Repository n = createRepository(true)) { |
| gitdir = n.getDirectory(); |
| } |
| recursiveDelete(gitdir); |
| assertFalse(gitdir.exists()); |
| |
| try { |
| new FileKey(gitdir, db.getFS()).open(true); |
| fail("incorrectly opened a non existant repository"); |
| } catch (RepositoryNotFoundException e) { |
| assertEquals("repository not found: " + gitdir.getCanonicalPath(), |
| e.getMessage()); |
| } |
| |
| final Repository o = new FileKey(gitdir, db.getFS()).open(false); |
| assertNotNull(o); |
| assertEqualsFile(gitdir, o.getDirectory()); |
| assertFalse(gitdir.exists()); |
| } |
| |
| @Test |
| public void testCacheRegisterOpen() throws Exception { |
| final File dir = db.getDirectory(); |
| RepositoryCache.register(db); |
| assertSame(db, RepositoryCache.open(FileKey.exact(dir, db.getFS()))); |
| |
| assertEquals(".git", dir.getName()); |
| final File parent = dir.getParentFile(); |
| assertSame(db, RepositoryCache.open(FileKey.lenient(parent, db.getFS()))); |
| } |
| |
| @Test |
| public void testCacheOpen() throws Exception { |
| final FileKey loc = FileKey.exact(db.getDirectory(), db.getFS()); |
| @SuppressWarnings("resource") // We are testing the close() method |
| final Repository d2 = RepositoryCache.open(loc); |
| assertNotSame(db, d2); |
| assertSame(d2, RepositoryCache.open(FileKey.exact(loc.getFile(), db.getFS()))); |
| d2.close(); |
| d2.close(); |
| } |
| |
| @Test |
| public void testGetRegisteredWhenEmpty() { |
| assertEquals(0, RepositoryCache.getRegisteredKeys().size()); |
| } |
| |
| @Test |
| public void testGetRegistered() { |
| RepositoryCache.register(db); |
| |
| assertThat(RepositoryCache.getRegisteredKeys(), |
| hasItem(FileKey.exact(db.getDirectory(), db.getFS()))); |
| assertEquals(1, RepositoryCache.getRegisteredKeys().size()); |
| } |
| |
| @Test |
| public void testUnregister() { |
| RepositoryCache.register(db); |
| RepositoryCache |
| .unregister(FileKey.exact(db.getDirectory(), db.getFS())); |
| |
| assertEquals(0, RepositoryCache.getRegisteredKeys().size()); |
| } |
| |
| @Test |
| public void testRepositoryUsageCount() throws Exception { |
| FileKey loc = FileKey.exact(db.getDirectory(), db.getFS()); |
| @SuppressWarnings("resource") // We are testing the close() method |
| Repository d2 = RepositoryCache.open(loc); |
| assertEquals(1, d2.useCnt.get()); |
| RepositoryCache.open(FileKey.exact(loc.getFile(), db.getFS())); |
| assertEquals(2, d2.useCnt.get()); |
| d2.close(); |
| assertEquals(1, d2.useCnt.get()); |
| d2.close(); |
| assertEquals(0, d2.useCnt.get()); |
| } |
| |
| @Test |
| public void testRepositoryUsageCountWithRegisteredRepository() |
| throws IOException { |
| @SuppressWarnings({"resource", "deprecation"}) // We are testing the close() method |
| Repository repo = createRepository(false, false); |
| assertEquals(1, repo.useCnt.get()); |
| RepositoryCache.register(repo); |
| assertEquals(1, repo.useCnt.get()); |
| repo.close(); |
| assertEquals(0, repo.useCnt.get()); |
| } |
| |
| @Test |
| public void testRepositoryNotUnregisteringWhenClosing() throws Exception { |
| FileKey loc = FileKey.exact(db.getDirectory(), db.getFS()); |
| @SuppressWarnings("resource") // We are testing the close() method |
| Repository d2 = RepositoryCache.open(loc); |
| assertEquals(1, d2.useCnt.get()); |
| assertThat(RepositoryCache.getRegisteredKeys(), |
| hasItem(FileKey.exact(db.getDirectory(), db.getFS()))); |
| assertEquals(1, RepositoryCache.getRegisteredKeys().size()); |
| d2.close(); |
| assertEquals(0, d2.useCnt.get()); |
| assertEquals(1, RepositoryCache.getRegisteredKeys().size()); |
| assertTrue(RepositoryCache.isCached(d2)); |
| } |
| |
| @Test |
| public void testRepositoryUnregisteringWhenExpiredAndUsageCountNegative() |
| throws Exception { |
| @SuppressWarnings("resource") // We are testing the close() method |
| Repository repoA = createBareRepository(); |
| RepositoryCache.register(repoA); |
| |
| assertEquals(1, RepositoryCache.getRegisteredKeys().size()); |
| assertTrue(RepositoryCache.isCached(repoA)); |
| |
| // close the repo twice to make usage count negative |
| repoA.close(); |
| repoA.close(); |
| // fake that repoA was closed more than 1 hour ago (default expiration |
| // time) |
| repoA.closedAt.set(System.currentTimeMillis() - 65 * 60 * 1000); |
| |
| RepositoryCache.clearExpired(); |
| |
| assertEquals(0, RepositoryCache.getRegisteredKeys().size()); |
| } |
| |
| @Test |
| public void testRepositoryUnregisteringWhenExpired() throws Exception { |
| @SuppressWarnings({"resource", "deprecation"}) // We are testing the close() method |
| Repository repoA = createRepository(true, false); |
| @SuppressWarnings({"resource", "deprecation"}) // We are testing the close() method |
| Repository repoB = createRepository(true, false); |
| Repository repoC = createBareRepository(); |
| RepositoryCache.register(repoA); |
| RepositoryCache.register(repoB); |
| RepositoryCache.register(repoC); |
| |
| assertEquals(3, RepositoryCache.getRegisteredKeys().size()); |
| assertTrue(RepositoryCache.isCached(repoA)); |
| assertTrue(RepositoryCache.isCached(repoB)); |
| assertTrue(RepositoryCache.isCached(repoC)); |
| |
| // fake that repoA was closed more than 1 hour ago (default expiration |
| // time) |
| repoA.close(); |
| repoA.closedAt.set(System.currentTimeMillis() - 65 * 60 * 1000); |
| // close repoB but this one will not be expired |
| repoB.close(); |
| |
| assertEquals(3, RepositoryCache.getRegisteredKeys().size()); |
| assertTrue(RepositoryCache.isCached(repoA)); |
| assertTrue(RepositoryCache.isCached(repoB)); |
| assertTrue(RepositoryCache.isCached(repoC)); |
| |
| RepositoryCache.clearExpired(); |
| |
| assertEquals(2, RepositoryCache.getRegisteredKeys().size()); |
| assertFalse(RepositoryCache.isCached(repoA)); |
| assertTrue(RepositoryCache.isCached(repoB)); |
| assertTrue(RepositoryCache.isCached(repoC)); |
| } |
| |
| @Test |
| public void testReconfigure() throws InterruptedException, IOException { |
| @SuppressWarnings({"resource", "deprecation"}) // We are testing the close() method |
| Repository repo = createRepository(false, false); |
| RepositoryCache.register(repo); |
| assertTrue(RepositoryCache.isCached(repo)); |
| repo.close(); |
| assertTrue(RepositoryCache.isCached(repo)); |
| |
| // Actually, we would only need to validate that |
| // WorkQueue.getExecutor().scheduleWithFixedDelay is called with proper |
| // values but since we do not have a mock library, we test |
| // reconfiguration from a black box perspective. I.e. reconfigure |
| // expireAfter and cleanupDelay to 1 ms and wait until the Repository |
| // is evicted to prove that reconfiguration worked. |
| RepositoryCacheConfig config = new RepositoryCacheConfig(); |
| config.setExpireAfter(1); |
| config.setCleanupDelay(1); |
| config.install(); |
| |
| // Instead of using a fixed waiting time, start with small and increase: |
| // sleep 1, 2, 4, 8, 16, ..., 1024 ms |
| // This wait will time out after 2048 ms |
| for (int i = 0; i <= 10; i++) { |
| Thread.sleep(1 << i); |
| if (!RepositoryCache.isCached(repo)) { |
| return; |
| } |
| } |
| fail("Repository should have been evicted from cache"); |
| } |
| } |