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// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.gitiles;
import static com.google.common.truth.Truth.assertThat;
import java.io.IOException;
import java.util.Map;
import java.util.Set;
import org.eclipse.jgit.internal.storage.dfs.DfsRepositoryDescription;
import org.eclipse.jgit.internal.storage.dfs.InMemoryRepository;
import org.eclipse.jgit.junit.TestRepository;
import org.eclipse.jgit.lib.Config;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.transport.resolver.ServiceNotAuthorizedException;
import org.eclipse.jgit.transport.resolver.ServiceNotEnabledException;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
@RunWith(JUnit4.class)
public class VisibilityCacheTest {
private InMemoryRepository repo;
private GitilesAccess access = new FakeGitilesAccess();
private RevCommit baseCommit;
private RevCommit commit1;
private RevCommit commit2;
private RevCommit commitA;
private RevCommit commitB;
private RevCommit commitC;
private VisibilityCache visibilityCache;
private RevWalk walk;
@Before
public void setUp() throws Exception {
/**
*
*
* <pre>
* commitC
* |
* commit2 commitB
* | |
* commit1 commitA <--- refs/tags/v0.1
* \ /
* \ /
* baseCommit
* </pre>
*/
repo = new InMemoryRepository(new DfsRepositoryDescription());
try (TestRepository<InMemoryRepository> git = new TestRepository<>(repo)) {
baseCommit = git.commit().message("baseCommit").create();
commit1 = git.commit().parent(baseCommit).message("commit1").create();
commit2 = git.commit().parent(commit1).message("commit2").create();
commitA = git.commit().parent(baseCommit).message("commitA").create();
commitB = git.commit().parent(commitA).message("commitB").create();
commitC = git.commit().parent(commitB).message("commitC").create();
git.update("master", commit2);
git.update("refs/tags/v0.1", commitA);
}
visibilityCache = new VisibilityCache();
walk = new RevWalk(repo);
walk.setRetainBody(false);
}
@After
public void tearDown() {
repo.close();
}
@Test
public void isTip() throws IOException {
ObjectId[] known = new ObjectId[0];
assertThat(visibilityCache.isVisible(repo, walk, access, commit2.getId(), known)).isTrue();
}
@Test
public void reachableFromHeads() throws Exception {
ObjectId[] known = new ObjectId[0];
assertThat(visibilityCache.isVisible(repo, walk, access, commit1.getId(), known)).isTrue();
}
@Test
public void reachableFromTags() throws Exception {
ObjectId[] known = new ObjectId[0];
assertThat(visibilityCache.isVisible(repo, walk, access, commitA.getId(), known)).isTrue();
}
@Test
public void unreachableFromAnyTip() throws Exception {
ObjectId[] known = new ObjectId[0];
assertThat(visibilityCache.isVisible(repo, walk, access, commitB.getId(), known)).isFalse();
}
@Test
public void reachableFromAnotherId() throws Exception {
ObjectId[] known = new ObjectId[] {commitC.getId()};
assertThat(visibilityCache.isVisible(repo, walk, access, commitB.getId(), known)).isTrue();
}
private static class FakeGitilesAccess implements GitilesAccess {
@Override
public Map<String, RepositoryDescription> listRepositories(String prefix, Set<String> branches)
throws ServiceNotEnabledException, ServiceNotAuthorizedException, IOException {
throw new UnsupportedOperationException();
}
@Override
public Object getUserKey() {
return "Test";
}
@Override
public String getRepositoryName() {
return "VisibilityCache-Test";
}
@Override
public RepositoryDescription getRepositoryDescription() throws IOException {
throw new UnsupportedOperationException();
}
@Override
public Config getConfig() throws IOException {
throw new UnsupportedOperationException();
}
}
}