diff options
Diffstat (limited to 'org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/dfs/DfsPackCompacterTest.java')
| -rw-r--r-- | org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/dfs/DfsPackCompacterTest.java | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/dfs/DfsPackCompacterTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/dfs/DfsPackCompacterTest.java new file mode 100644 index 0000000000..db5b24a9b5 --- /dev/null +++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/dfs/DfsPackCompacterTest.java @@ -0,0 +1,144 @@ +/* + * Copyright (C) 2017, Google Inc. + * and other copyright owners as documented in the project's IP log. + * + * This program and the accompanying materials are made available + * under the terms of the Eclipse Distribution License v1.0 which + * accompanies this distribution, is reproduced below, and is + * available at http://www.eclipse.org/org/documents/edl-v10.php + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * - Neither the name of the Eclipse Foundation, Inc. nor the + * names of its contributors may be used to endorse or promote + * products derived from this software without specific prior + * written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND + * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +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(); + } +} |