| // Copyright 2015 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.internal.junit4; |
| |
| import com.google.testing.junit.runner.internal.SignalHandlers; |
| import com.google.testing.junit.runner.internal.StackTraces; |
| import com.google.testing.junit.runner.internal.Stderr; |
| import java.io.PrintStream; |
| import javax.inject.Inject; |
| import javax.inject.Singleton; |
| import org.junit.runner.Description; |
| import org.junit.runner.notification.RunListener; |
| import sun.misc.Signal; |
| import sun.misc.SignalHandler; |
| |
| /** |
| * A listener than dumps all stack traces when the test receives a SIGTERM. |
| */ |
| @Singleton |
| public class JUnit4TestStackTraceListener extends RunListener { |
| private final SignalHandlers signalHandlers; |
| private final PrintStream errPrintStream; |
| |
| @Inject |
| public JUnit4TestStackTraceListener( |
| SignalHandlers signalHandlers, @Stderr PrintStream errPrintStream) { |
| this.signalHandlers = signalHandlers; |
| this.errPrintStream = errPrintStream; |
| } |
| |
| @Override |
| public void testRunStarted(Description description) throws Exception { |
| signalHandlers.installHandler(new Signal("TERM"), new WriteStackTraceSignalHandler()); |
| } |
| |
| private class WriteStackTraceSignalHandler implements SignalHandler { |
| @Override |
| public void handle(Signal signal) { |
| errPrintStream.println("Dumping stack traces for all threads\n"); |
| StackTraces.printAll(errPrintStream); |
| } |
| } |
| } |