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// Copyright (C) 2019 The Android Open Source Project
//
// 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
//
// http://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.googlesource.gerrit.plugins.replication;
import static com.google.common.truth.Truth.assertThat;
import static java.util.stream.Collectors.toList;
import com.google.common.base.Stopwatch;
import com.google.gerrit.acceptance.LightweightPluginDaemonTest;
import com.google.gerrit.acceptance.PushOneCommit.Result;
import com.google.gerrit.acceptance.TestPlugin;
import com.google.gerrit.acceptance.UseLocalDisk;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gerrit.server.config.SitePaths;
import com.google.inject.Inject;
import java.io.IOException;
import java.nio.file.Path;
import java.time.Duration;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.TimeUnit;
import java.util.function.Supplier;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.storage.file.FileBasedConfig;
import org.eclipse.jgit.util.FS;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@UseLocalDisk
@TestPlugin(
name = "replication",
sysModule = "com.googlesource.gerrit.plugins.replication.ReplicationModule")
public class ReplicationQueueIT extends LightweightPluginDaemonTest {
private static final Logger logger = LoggerFactory.getLogger(ReplicationQueueIT.class);
private static final int TEST_REPLICATION_DELAY = 1;
private static final Duration TEST_TIMEOUT = Duration.ofSeconds(TEST_REPLICATION_DELAY * 2);
@Inject private SitePaths sitePaths;
private Path gitPath;
private FileBasedConfig config;
@Override
public void setUp() throws Exception {
gitPath = sitePaths.site_path.resolve("git");
config =
new FileBasedConfig(sitePaths.etc_dir.resolve("replication.config").toFile(), FS.DETECTED);
setReplicationDestination("foo", "replica");
super.setUp();
}
@Test
public void shouldNotDropEventsWhenStarting() throws Exception {
Project.NameKey targetProject = createProject("projectreplica");
replicationQueueStop();
Result pushResult = createChange();
replicationQueueStart();
RevCommit sourceCommit = pushResult.getCommit();
String sourceRef = pushResult.getPatchSet().getRefName();
try (Repository repo = repoManager.openRepository(targetProject)) {
waitUntil(() -> checkedGetRef(repo, sourceRef) != null);
Ref targetBranchRef = getRef(repo, sourceRef);
assertThat(targetBranchRef).isNotNull();
assertThat(targetBranchRef.getObjectId()).isEqualTo(sourceCommit.getId());
}
}
private Ref getRef(Repository repo, String branchName) throws IOException {
return repo.getRefDatabase().exactRef(branchName);
}
private Ref checkedGetRef(Repository repo, String branchName) {
try {
return repo.getRefDatabase().exactRef(branchName);
} catch (Exception e) {
logger.error("failed to get ref %s in repo %s", branchName, repo);
return null;
}
}
private void setReplicationDestination(String remoteName, String replicaSuffix)
throws IOException {
setReplicationDestination(remoteName, Arrays.asList(replicaSuffix));
}
private void setReplicationDestination(String remoteName, List<String> replicaSuffixes)
throws IOException {
List<String> replicaUrls =
replicaSuffixes.stream()
.map(suffix -> gitPath.resolve("${name}" + suffix + ".git").toString())
.collect(toList());
config.setStringList("remote", remoteName, "url", replicaUrls);
config.setInt("remote", remoteName, "replicationDelay", TEST_REPLICATION_DELAY);
config.save();
}
private void waitUntil(Supplier<Boolean> waitCondition) throws InterruptedException {
Stopwatch stopwatch = Stopwatch.createStarted();
while (!waitCondition.get()) {
if (stopwatch.elapsed().compareTo(TEST_TIMEOUT) > 0) {
throw new InterruptedException();
}
TimeUnit.MILLISECONDS.sleep(50);
}
}
private void replicationQueueStart() {
plugin.getSysInjector().getInstance(ReplicationQueue.class).start();
}
private void replicationQueueStop() {
plugin.getSysInjector().getInstance(ReplicationQueue.class).stop();
}
}
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