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// Copyright (C) 2020 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.google.gerrit.acceptance.ssh;
import static com.google.gerrit.acceptance.WaitUtil.waitUntil;
import com.google.common.base.Splitter;
import com.google.gerrit.acceptance.AbstractDaemonTest;
import com.google.gerrit.acceptance.NoHttpd;
import com.google.gerrit.acceptance.Sandboxed;
import com.google.gerrit.acceptance.UseSsh;
import com.google.gerrit.extensions.api.changes.ChangeApi;
import com.google.gerrit.extensions.api.changes.ReviewInput;
import java.io.IOException;
import java.io.Reader;
import java.time.Duration;
import java.util.List;
import java.util.function.Supplier;
import java.util.stream.Collectors;
import java.util.stream.StreamSupport;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
@NoHttpd
@UseSsh
@Sandboxed
public class StreamEventsIT extends AbstractDaemonTest {
private static final Duration MAX_DURATION_FOR_RECEIVING_EVENTS = Duration.ofSeconds(2);
private static final String TEST_REVIEW_COMMENT = "any comment";
private Reader streamEventsReader;
@Before
public void setup() throws Exception {
streamEventsReader = adminSshSession.execAndReturnReader("gerrit stream-events");
}
@After
public void closeStreamEvents() throws IOException {
streamEventsReader.close();
}
@Test
public void commentOnChangeShowsUpInStreamEvents() throws Exception {
reviewChange(new ReviewInput().message(TEST_REVIEW_COMMENT));
waitForEvent(() -> pollEventsContaining("comment-added", TEST_REVIEW_COMMENT).size() == 1);
}
@Test
public void batchRefsUpdatedShowSeparatelyInStreamEvents() throws Exception {
String refName = createChange().getChange().currentPatchSet().refName();
waitForEvent(
() ->
pollEventsContaining("ref-updated", refName.substring(0, refName.lastIndexOf('/')))
.size()
== 2);
}
private void waitForEvent(Supplier<Boolean> waitCondition) throws InterruptedException {
waitUntil(() -> waitCondition.get(), MAX_DURATION_FOR_RECEIVING_EVENTS);
}
private void reviewChange(ReviewInput reviewInput) throws Exception {
ChangeApi changeApi = gApi.changes().id(createChange().getChange().getId().get());
changeApi.current().review(reviewInput);
}
private List<String> pollEventsContaining(String eventType, String expectedContent) {
try {
char[] cbuf = new char[2048];
StringBuilder eventsOutput = new StringBuilder();
while (streamEventsReader.ready()) {
streamEventsReader.read(cbuf);
eventsOutput.append(cbuf);
}
return StreamSupport.stream(
Splitter.on('\n').trimResults().split(eventsOutput.toString()).spliterator(), false)
.filter(
event ->
event.contains(String.format("\"type\":\"%s\"", eventType))
&& event.contains(expectedContent))
.collect(Collectors.toList());
} catch (IOException e) {
throw new IllegalStateException(e);
}
}
}
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