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// Copyright 2014 The Bazel Authors. All rights reserved.
//
// 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.devtools.build.skyframe;
import static com.google.common.truth.Truth.assertThat;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.events.EventHandler;
import com.google.devtools.build.lib.events.NullEventHandler;
import com.google.devtools.build.skyframe.CyclesReporter.SingleCycleReporter;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import java.util.concurrent.atomic.AtomicBoolean;
@RunWith(JUnit4.class)
public class CyclesReporterTest {
private static final SkyKey DUMMY_KEY = new SkyKey(SkyFunctionName.create("func"), "key");
@Test
public void nullEventHandler() {
CyclesReporter cyclesReporter = new CyclesReporter();
try {
cyclesReporter.reportCycles(ImmutableList.<CycleInfo>of(), DUMMY_KEY, null);
assertThat(false).isTrue();
} catch (NullPointerException e) {
// Expected.
}
}
@Test
public void notReportedAssertion() {
SingleCycleReporter singleReporter = new SingleCycleReporter() {
@Override
public boolean maybeReportCycle(SkyKey topLevelKey, CycleInfo cycleInfo,
boolean alreadyReported, EventHandler eventHandler) {
return false;
}
};
CycleInfo cycleInfo = new CycleInfo(ImmutableList.of(DUMMY_KEY));
CyclesReporter cyclesReporter = new CyclesReporter(singleReporter);
try {
cyclesReporter.reportCycles(ImmutableList.of(cycleInfo), DUMMY_KEY,
NullEventHandler.INSTANCE);
assertThat(false).isTrue();
} catch (IllegalStateException e) {
// Expected.
}
}
@Test
public void smoke() {
final AtomicBoolean reported = new AtomicBoolean();
SingleCycleReporter singleReporter = new SingleCycleReporter() {
@Override
public boolean maybeReportCycle(SkyKey topLevelKey, CycleInfo cycleInfo,
boolean alreadyReported, EventHandler eventHandler) {
reported.set(true);
return true;
}
};
CycleInfo cycleInfo = new CycleInfo(ImmutableList.of(DUMMY_KEY));
CyclesReporter cyclesReporter = new CyclesReporter(singleReporter);
cyclesReporter.reportCycles(ImmutableList.of(cycleInfo), DUMMY_KEY,
NullEventHandler.INSTANCE);
assertThat(reported.get()).isTrue();
}
}
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