| /* |
| * Copyright (C) 2017, 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.internal.storage.dfs; |
| |
| import static org.eclipse.jgit.internal.storage.dfs.DfsObjDatabase.PackSource.COMPACT; |
| import static org.eclipse.jgit.internal.storage.dfs.DfsObjDatabase.PackSource.INSERT; |
| import static org.eclipse.jgit.internal.storage.pack.PackExt.PACK; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.IOException; |
| |
| import org.eclipse.jgit.junit.TestRepository; |
| import org.eclipse.jgit.revwalk.RevCommit; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class DfsPackCompacterTest { |
| private TestRepository<InMemoryRepository> git; |
| private InMemoryRepository repo; |
| private DfsObjDatabase odb; |
| |
| @Before |
| public void setUp() throws IOException { |
| DfsRepositoryDescription desc = new DfsRepositoryDescription("test"); |
| git = new TestRepository<>(new InMemoryRepository(desc)); |
| repo = git.getRepository(); |
| odb = repo.getObjectDatabase(); |
| } |
| |
| @Test |
| public void testEstimateCompactPackSizeInNewRepo() throws Exception { |
| RevCommit commit0 = commit().message("0").create(); |
| RevCommit commit1 = commit().message("1").parent(commit0).create(); |
| git.update("master", commit1); |
| |
| // Packs start out as INSERT. |
| long inputPacksSize = 32; |
| assertEquals(2, odb.getPacks().length); |
| for (DfsPackFile pack : odb.getPacks()) { |
| assertEquals(INSERT, pack.getPackDescription().getPackSource()); |
| inputPacksSize += pack.getPackDescription().getFileSize(PACK) - 32; |
| } |
| |
| compact(); |
| |
| // INSERT packs are compacted into a single COMPACT pack. |
| assertEquals(1, odb.getPacks().length); |
| DfsPackFile pack = odb.getPacks()[0]; |
| assertEquals(COMPACT, pack.getPackDescription().getPackSource()); |
| assertEquals(inputPacksSize, |
| pack.getPackDescription().getEstimatedPackSize()); |
| } |
| |
| @Test |
| public void testEstimateGcPackSizeWithAnExistingGcPack() throws Exception { |
| RevCommit commit0 = commit().message("0").create(); |
| RevCommit commit1 = commit().message("1").parent(commit0).create(); |
| git.update("master", commit1); |
| |
| compact(); |
| |
| RevCommit commit2 = commit().message("2").parent(commit1).create(); |
| git.update("master", commit2); |
| |
| // There will be one INSERT pack and one COMPACT pack. |
| assertEquals(2, odb.getPacks().length); |
| boolean compactPackFound = false; |
| boolean insertPackFound = false; |
| long inputPacksSize = 32; |
| for (DfsPackFile pack : odb.getPacks()) { |
| DfsPackDescription packDescription = pack.getPackDescription(); |
| if (packDescription.getPackSource() == COMPACT) { |
| compactPackFound = true; |
| } |
| if (packDescription.getPackSource() == INSERT) { |
| insertPackFound = true; |
| } |
| inputPacksSize += packDescription.getFileSize(PACK) - 32; |
| } |
| assertTrue(compactPackFound); |
| assertTrue(insertPackFound); |
| |
| compact(); |
| |
| // INSERT pack is combined into the COMPACT pack. |
| DfsPackFile pack = odb.getPacks()[0]; |
| assertEquals(COMPACT, pack.getPackDescription().getPackSource()); |
| assertEquals(inputPacksSize, |
| pack.getPackDescription().getEstimatedPackSize()); |
| } |
| |
| private TestRepository<InMemoryRepository>.CommitBuilder commit() { |
| return git.commit(); |
| } |
| |
| private void compact() throws IOException { |
| DfsPackCompactor compactor = new DfsPackCompactor(repo); |
| compactor.autoAdd(); |
| compactor.compact(null); |
| odb.clearCache(); |
| } |
| } |