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// Copyright 2012 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.testing.junit.runner.junit4;
import com.google.common.base.Supplier;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import com.google.testing.junit.runner.internal.SignalHandlers;
import com.google.testing.junit.runner.internal.Stderr;
import com.google.testing.junit.runner.model.TestSuiteModel;
import org.junit.Ignore;
import org.junit.runner.Description;
import org.junit.runner.Result;
import org.junit.runner.notification.Failure;
import org.junit.runner.notification.RunListener;
import sun.misc.Signal;
import sun.misc.SignalHandler;
import java.io.OutputStream;
import java.io.PrintStream;
/**
* A listener that writes the test output as XML.
*/
@Singleton
class JUnit4TestXmlListener extends RunListener {
private final Supplier<TestSuiteModel> modelSupplier;
private final CancellableRequestFactory requestFactory;
private final SignalHandlers signalHandlers;
private final OutputStream xmlStream;
private final PrintStream errPrintStream;
private volatile TestSuiteModel model;
@Inject
public JUnit4TestXmlListener(Supplier<TestSuiteModel> modelSupplier,
CancellableRequestFactory requestFactory, SignalHandlers signalHandlers,
@Xml OutputStream xmlStream, @Stderr PrintStream errPrintStream) {
this.modelSupplier = modelSupplier;
this.requestFactory = requestFactory;
this.signalHandlers = signalHandlers;
this.xmlStream = xmlStream;
this.errPrintStream = errPrintStream;
}
@Override
public void testRunStarted(Description description) throws Exception {
model = modelSupplier.get();
signalHandlers.installHandler(new Signal("TERM"), new WriteXmlSignalHandler());
}
@Override
public void testStarted(Description description) throws Exception {
model.testStarted(description);
}
@Override
public void testAssumptionFailure(Failure failure) {
model.testSkipped(failure.getDescription());
}
@Override
public void testFailure(Failure failure) throws Exception {
model.testFailure(failure.getDescription(), failure.getException());
}
@Override
public void testIgnored(Description description) throws Exception {
// TODO(bazel-team) There's a known issue in the JUnit4 ParentRunner that
// fires testIgnored on test suites that are being skipped due to an
// assumption failure.
if (isSuiteAssumptionFailure(description)) {
model.testSkipped(description);
} else {
model.testSuppressed(description);
}
}
private boolean isSuiteAssumptionFailure(Description description) {
return description.isSuite() && description.getAnnotation(Ignore.class) == null;
}
@Override
public void testFinished(Description description) throws Exception {
model.testFinished(description);
}
@Override
public void testRunFinished(Result result) throws Exception {
model.writeAsXml(xmlStream);
}
private class WriteXmlSignalHandler implements SignalHandler {
@Override
public void handle(Signal signal) {
try {
errPrintStream.printf("%nReceived %s; writing test XML%n", signal.toString());
requestFactory.cancelRun();
model.testRunInterrupted();
model.writeAsXml(xmlStream);
errPrintStream.println("Done writing test XML");
} catch (Exception e) {
errPrintStream.println("Could not write test XML");
e.printStackTrace(errPrintStream);
}
}
}
}
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