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/*
* Copyright (C) 2010 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 vogar.target.junit;
import java.util.concurrent.atomic.AtomicReference;
import org.junit.runner.JUnitCore;
import org.junit.runner.Runner;
import org.junit.runner.manipulation.NoTestsRemainException;
import org.junit.runner.manipulation.Sorter;
import org.junit.runners.model.RunnerBuilder;
import vogar.monitor.TargetMonitor;
import vogar.target.SkipPastFilter;
import vogar.target.TargetMonitorRunListener;
import vogar.target.TargetRunner;
import vogar.target.TestEnvironment;
import vogar.target.TestEnvironmentRunListener;
/**
* Adapts a JUnit3 test for use by vogar.
*/
public final class JUnitTargetRunner implements TargetRunner {
private static final Sorter DESCRIPTION_SORTER =
new Sorter(DescriptionComparator.getInstance());
private final TargetMonitor monitor;
private final AtomicReference<String> skipPastReference;
private final TestEnvironment testEnvironment;
private final Class<?> testClass;
private final RunnerParams runnerParams;
private final String[] excludeFilters;
public JUnitTargetRunner(TargetMonitor monitor, AtomicReference<String> skipPastReference,
TestEnvironment testEnvironment,
int timeoutSeconds, Class<?> testClass,
String qualification, String[] excludeFilters, String[] args) {
this.monitor = monitor;
this.skipPastReference = skipPastReference;
this.testEnvironment = testEnvironment;
this.testClass = testClass;
this.excludeFilters = excludeFilters;
TimeoutAndAbortRunRule timeoutRule = new TimeoutAndAbortRunRule(timeoutSeconds);
runnerParams = new RunnerParams(qualification, args, timeoutRule);
}
@Override
public boolean run() {
// Use JUnit infrastructure to run the tests.
RunnerBuilder builder = new VogarRunnerBuilder(runnerParams);
Runner runner = builder.safeRunnerForClass(testClass);
if (runner == null) {
throw new IllegalStateException("Cannot create runner for: " + testClass.getName());
}
// Sort to ensure consistent ordering, that is done before applying any filters as the
// SkipPastFilter requires a consistent ordering across runs in order to work properly.
DESCRIPTION_SORTER.apply(runner);
String skipPast = skipPastReference.get();
if (skipPast != null) {
try {
new SkipPastFilter(skipPastReference).apply(runner);
} catch (NoTestsRemainException ignored) {
return true;
}
}
try {
new ExcludeFilter(excludeFilters).apply(runner);
} catch (NoTestsRemainException e) {
throw new RuntimeException(e);
}
try {
JUnitCore core = new JUnitCore();
// The TestEnvironmentRunListener resets static state between tests.
core.addListener(new TestEnvironmentRunListener(testEnvironment));
// The TargetMonitorRunListener sends the result of the tests back to the main Vogar
// process.
core.addListener(new TargetMonitorRunListener(monitor));
core.run(runner);
} catch (VmIsUnstableException e) {
// If a test reports that the VM is unstable then inform the caller so that the
// current process can be exited abnormally which will trigger the vogar main process
// to rerun the tests from after the timing out test.
return false;
}
return true;
}
}
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