| /* |
| * Copyright (C) 2014, Robin Stocker <robin@nibor.org> 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.revwalk; |
| |
| import static java.util.Arrays.asList; |
| import static org.junit.Assert.assertEquals; |
| |
| import java.util.Collection; |
| import java.util.List; |
| |
| import org.eclipse.jgit.api.Git; |
| import org.eclipse.jgit.lib.Ref; |
| import org.eclipse.jgit.lib.RefComparator; |
| import org.junit.Test; |
| |
| public class RevWalkUtilsReachableTest extends RevWalkTestCase { |
| |
| @Test |
| public void oneCommit() throws Exception { |
| RevCommit a = commit(); |
| Ref branchA = branch("a", a); |
| |
| assertContains(a, asList(branchA)); |
| } |
| |
| @Test |
| public void twoCommits() throws Exception { |
| RevCommit a = commit(); |
| RevCommit b = commit(a); |
| branch("a", a); |
| Ref branchB = branch("b", b); |
| |
| assertContains(b, asList(branchB)); |
| } |
| |
| @Test |
| public void multipleBranches() throws Exception { |
| RevCommit a = commit(); |
| RevCommit b = commit(a); |
| branch("a", a); |
| Ref branchB = branch("b", b); |
| Ref branchB2 = branch("b2", b); |
| |
| assertContains(b, asList(branchB, branchB2)); |
| } |
| |
| @Test |
| public void withMerge() throws Exception { |
| RevCommit a = commit(); |
| RevCommit b = commit(); |
| RevCommit c = commit(a, b); |
| Ref branchA = branch("a", a); |
| Ref branchB = branch("b", b); |
| Ref branchC = branch("c", c); |
| |
| assertContains(a, asList(branchA, branchC)); |
| assertContains(b, asList(branchB, branchC)); |
| } |
| |
| @Test |
| public void withCommitLoadedByDifferentRevWalk() throws Exception { |
| RevCommit a = commit(); |
| Ref branchA = branch("a", a); |
| |
| try (RevWalk walk = new RevWalk(db)) { |
| RevCommit parsedCommit = walk.parseCommit(a.getId()); |
| assertContains(parsedCommit, asList(branchA)); |
| } |
| } |
| |
| @Test |
| public void findBranchesReachableManyTimes() throws Exception { |
| /* |
| * a b |
| * | | |
| * c d |
| * | \ |
| * f e |
| * | / |
| * g |
| */ |
| RevCommit a = commit(); |
| RevCommit b = commit(); |
| RevCommit c = commit(a); |
| RevCommit d = commit(b); |
| RevCommit f = commit(d); |
| RevCommit e = commit(d); |
| RevCommit g = commit(f, e); |
| Ref branchA = branch("a", a); |
| Ref branchB = branch("b", b); |
| Ref branchC = branch("c", c); |
| Ref branchD = branch("d", d); |
| Ref branchE = branch("e", e); |
| Ref branchF = branch("f", f); |
| Ref branchG = branch("g", g); |
| |
| assertContains(a, asList(branchA, branchC)); |
| assertContains(b, asList(branchB, branchD, branchE, branchF, branchG)); |
| assertContains(c, asList(branchC)); |
| assertContains(d, asList(branchD, branchE, branchF, branchG)); |
| assertContains(e, asList(branchE, branchG)); |
| assertContains(f, asList(branchF, branchG)); |
| assertContains(g, asList(branchG)); |
| } |
| |
| private Ref branch(String name, RevCommit dst) throws Exception { |
| return Git.wrap(db).branchCreate().setName(name) |
| .setStartPoint(dst.name()).call(); |
| } |
| |
| private void assertContains(RevCommit commit, Collection<Ref> refsThatShouldContainCommit) throws Exception { |
| Collection<Ref> allRefs = db.getRefDatabase().getRefs(); |
| Collection<Ref> sortedRefs = RefComparator.sort(allRefs); |
| List<Ref> actual = RevWalkUtils.findBranchesReachableFrom(commit, |
| rw, sortedRefs); |
| assertEquals(refsThatShouldContainCommit, actual); |
| } |
| |
| } |