| /* |
| * Copyright (C) 2012, Marc Strapetz <marc.strapetz@syntevo.com> |
| * 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.revwalk; |
| |
| import static org.junit.Assert.assertNull; |
| |
| import java.io.File; |
| import java.io.IOException; |
| |
| import org.eclipse.jgit.junit.JGitTestUtil; |
| import org.eclipse.jgit.lib.ObjectId; |
| import org.junit.Test; |
| |
| public class RevWalkShallowTest extends RevWalkTestCase { |
| |
| // Accessing ============================================================== |
| |
| @Test |
| public void testDepth1() throws Exception { |
| RevCommit[] commits = setupLinearChain(); |
| |
| createShallowFile(commits[3]); |
| updateCommits(commits); |
| |
| rw.markStart(commits[3]); |
| assertCommit(commits[3], rw.next()); |
| assertNull(rw.next()); |
| } |
| |
| @Test |
| public void testDepth2() throws Exception { |
| RevCommit[] commits = setupLinearChain(); |
| |
| createShallowFile(commits[2]); |
| updateCommits(commits); |
| |
| rw.markStart(commits[3]); |
| assertCommit(commits[3], rw.next()); |
| assertCommit(commits[2], rw.next()); |
| assertNull(rw.next()); |
| } |
| |
| @Test |
| public void testDepth3() throws Exception { |
| RevCommit[] commits = setupLinearChain(); |
| |
| createShallowFile(commits[1]); |
| updateCommits(commits); |
| |
| rw.markStart(commits[3]); |
| assertCommit(commits[3], rw.next()); |
| assertCommit(commits[2], rw.next()); |
| assertCommit(commits[1], rw.next()); |
| assertNull(rw.next()); |
| } |
| |
| @Test |
| public void testObjectDirectorySnapshot() throws Exception { |
| RevCommit[] commits = setupLinearChain(); |
| |
| createShallowFile(commits[3]); |
| updateCommits(commits); |
| |
| markStart(commits[3]); |
| assertCommit(commits[3], rw.next()); |
| assertNull(rw.next()); |
| |
| createShallowFile(commits[2]); |
| updateCommits(commits); |
| |
| markStart(commits[3]); |
| assertCommit(commits[3], rw.next()); |
| assertCommit(commits[2], rw.next()); |
| assertNull(rw.next()); |
| } |
| |
| private RevCommit[] setupLinearChain() throws Exception { |
| RevCommit[] commits = new RevCommit[4]; |
| RevCommit parent = null; |
| for (int i = 0; i < commits.length; i++) { |
| commits[i] = parent != null ? commit(parent) : commit(); |
| parent = commits[i]; |
| } |
| return commits; |
| } |
| |
| @Test |
| public void testMergeCommitOneParentShallow() throws Exception { |
| RevCommit[] commits = setupMergeChain(); |
| |
| createShallowFile(commits[4]); |
| updateCommits(commits); |
| |
| markStart(commits[5]); |
| assertCommit(commits[5], rw.next()); |
| assertCommit(commits[4], rw.next()); |
| assertCommit(commits[2], rw.next()); |
| assertCommit(commits[1], rw.next()); |
| assertCommit(commits[0], rw.next()); |
| assertNull(rw.next()); |
| } |
| |
| @Test |
| public void testMergeCommitEntirelyShallow() throws Exception { |
| RevCommit[] commits = setupMergeChain(); |
| |
| createShallowFile(commits[2], commits[4]); |
| updateCommits(commits); |
| |
| markStart(commits[5]); |
| assertCommit(commits[5], rw.next()); |
| assertCommit(commits[4], rw.next()); |
| assertCommit(commits[2], rw.next()); |
| assertNull(rw.next()); |
| } |
| |
| private RevCommit[] setupMergeChain() throws Exception { |
| /*- |
| * Create a history like this, diverging at 1 and merging at 5: |
| * |
| * ---o--o commits 3,4 |
| * / \ |
| * o--o--o------o commits 0,1,2,5 |
| */ |
| RevCommit[] commits = new RevCommit[6]; |
| commits[0] = commit(); |
| commits[1] = commit(commits[0]); |
| commits[2] = commit(commits[1]); |
| commits[3] = commit(commits[1]); |
| commits[4] = commit(commits[3]); |
| commits[5] = commit(commits[2], commits[4]); |
| return commits; |
| } |
| |
| private void updateCommits(RevCommit[] commits) { |
| // Relookup commits using the new RevWalk |
| for (int i = 0; i < commits.length; i++) { |
| commits[i] = rw.lookupCommit(commits[i].getId()); |
| } |
| } |
| |
| private void createShallowFile(ObjectId... shallowCommits) |
| throws IOException { |
| // Reset the RevWalk since the new shallow file invalidates the existing |
| // RevWalk's shallow state. |
| rw.close(); |
| rw = createRevWalk(); |
| StringBuilder builder = new StringBuilder(); |
| for (ObjectId commit : shallowCommits) { |
| builder.append(commit.getName() + "\n"); |
| } |
| JGitTestUtil.write(new File(db.getDirectory(), "shallow"), |
| builder.toString()); |
| } |
| |
| @Test |
| public void testShallowCommitParse() throws Exception { |
| RevCommit a = commit(); |
| RevCommit b = commit(a); |
| |
| createShallowFile(b); |
| |
| rw.close(); |
| rw = createRevWalk(); |
| b = rw.parseCommit(b); |
| |
| markStart(b); |
| assertCommit(b, rw.next()); |
| assertNull(rw.next()); |
| } |
| } |