mirror of https://github.com/sbt/sbt.git
348 lines
13 KiB
Java
348 lines
13 KiB
Java
/*
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* sbt
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* Copyright 2011 - 2017, Lightbend, Inc.
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* Copyright 2008 - 2010, Mark Harrah
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* Licensed under BSD-3-Clause license (see LICENSE)
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*/
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package sbt;
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import sbt.testing.*;
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import java.io.IOException;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.io.Serializable;
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import java.net.Socket;
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import java.net.InetAddress;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collection;
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import java.util.List;
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import java.util.concurrent.*;
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final public class ForkMain {
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// serializables
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// -----------------------------------------------------------------------------
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final static class SubclassFingerscan implements SubclassFingerprint, Serializable {
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private final boolean isModule;
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private final String superclassName;
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private final boolean requireNoArgConstructor;
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SubclassFingerscan(final SubclassFingerprint print) {
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isModule = print.isModule();
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superclassName = print.superclassName();
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requireNoArgConstructor = print.requireNoArgConstructor();
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}
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public boolean isModule() { return isModule; }
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public String superclassName() { return superclassName; }
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public boolean requireNoArgConstructor() { return requireNoArgConstructor; }
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}
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final static class AnnotatedFingerscan implements AnnotatedFingerprint, Serializable {
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private final boolean isModule;
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private final String annotationName;
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AnnotatedFingerscan(final AnnotatedFingerprint print) {
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isModule = print.isModule();
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annotationName = print.annotationName();
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}
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public boolean isModule() { return isModule; }
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public String annotationName() { return annotationName; }
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}
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final static class ForkEvent implements Event, Serializable {
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private final String fullyQualifiedName;
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private final Fingerprint fingerprint;
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private final Selector selector;
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private final Status status;
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private final OptionalThrowable throwable;
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private final long duration;
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ForkEvent(final Event e) {
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fullyQualifiedName = e.fullyQualifiedName();
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final Fingerprint rawFingerprint = e.fingerprint();
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if (rawFingerprint instanceof SubclassFingerprint)
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fingerprint = new SubclassFingerscan((SubclassFingerprint) rawFingerprint);
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else
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fingerprint = new AnnotatedFingerscan((AnnotatedFingerprint) rawFingerprint);
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selector = e.selector();
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checkSerializableSelector(selector);
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status = e.status();
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final OptionalThrowable originalThrowable = e.throwable();
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if (originalThrowable.isDefined())
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throwable = new OptionalThrowable(new ForkError(originalThrowable.get()));
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else
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throwable = originalThrowable;
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duration = e.duration();
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}
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public String fullyQualifiedName() { return fullyQualifiedName; }
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public Fingerprint fingerprint() { return fingerprint; }
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public Selector selector() { return selector; }
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public Status status() { return status; }
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public OptionalThrowable throwable() { return throwable; }
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public long duration() { return duration; }
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private static void checkSerializableSelector(final Selector selector) {
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if (! (selector instanceof Serializable)) {
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throw new UnsupportedOperationException("Selector implementation must be Serializable, but " + selector.getClass().getName() + " is not.");
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}
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}
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}
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// -----------------------------------------------------------------------------
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final static class ForkError extends Exception {
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private final String originalMessage;
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private final String originalName;
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private ForkError cause;
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ForkError(final Throwable t) {
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originalMessage = t.getMessage();
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originalName = t.getClass().getName();
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setStackTrace(t.getStackTrace());
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if (t.getCause() != null) cause = new ForkError(t.getCause());
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}
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public String getMessage() { return originalName + ": " + originalMessage; }
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public Exception getCause() { return cause; }
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}
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// main
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// ----------------------------------------------------------------------------------------------------------------
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public static void main(final String[] args) throws Exception {
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final Socket socket = new Socket(InetAddress.getByName(null), Integer.valueOf(args[0]));
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final ObjectInputStream is = new ObjectInputStream(socket.getInputStream());
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final ObjectOutputStream os = new ObjectOutputStream(socket.getOutputStream());
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// Must flush the header that the constructor writes, otherwise the ObjectInputStream on the other end may block indefinitely
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os.flush();
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try {
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new Run().run(is, os);
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} finally {
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try {
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is.close();
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os.close();
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} finally {
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System.exit(0);
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}
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}
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}
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// ----------------------------------------------------------------------------------------------------------------
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final private static class Run {
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private void run(final ObjectInputStream is, final ObjectOutputStream os) {
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try {
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runTests(is, os);
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} catch (final RunAborted e) {
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internalError(e);
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} catch (final Throwable t) {
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try {
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logError(os, "Uncaught exception when running tests: " + t.toString());
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write(os, new ForkError(t));
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} catch (final Throwable t2) {
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internalError(t2);
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}
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}
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}
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private boolean matches(final Fingerprint f1, final Fingerprint f2) {
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if (f1 instanceof SubclassFingerprint && f2 instanceof SubclassFingerprint) {
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final SubclassFingerprint sf1 = (SubclassFingerprint) f1;
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final SubclassFingerprint sf2 = (SubclassFingerprint) f2;
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return sf1.isModule() == sf2.isModule() && sf1.superclassName().equals(sf2.superclassName());
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} else if (f1 instanceof AnnotatedFingerprint && f2 instanceof AnnotatedFingerprint) {
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final AnnotatedFingerprint af1 = (AnnotatedFingerprint) f1;
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final AnnotatedFingerprint af2 = (AnnotatedFingerprint) f2;
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return af1.isModule() == af2.isModule() && af1.annotationName().equals(af2.annotationName());
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}
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return false;
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}
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class RunAborted extends RuntimeException {
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RunAborted(final Exception e) { super(e); }
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}
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private synchronized void write(final ObjectOutputStream os, final Object obj) {
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try {
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os.writeObject(obj);
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os.flush();
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} catch (final IOException e) {
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throw new RunAborted(e);
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}
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}
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private void log(final ObjectOutputStream os, final String message, final ForkTags level) {
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write(os, new Object[]{level, message});
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}
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private void logDebug(final ObjectOutputStream os, final String message) { log(os, message, ForkTags.Debug); }
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private void logInfo(final ObjectOutputStream os, final String message) { log(os, message, ForkTags.Info); }
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private void logWarn(final ObjectOutputStream os, final String message) { log(os, message, ForkTags.Warn); }
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private void logError(final ObjectOutputStream os, final String message) { log(os, message, ForkTags.Error); }
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private Logger remoteLogger(final boolean ansiCodesSupported, final ObjectOutputStream os) {
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return new Logger() {
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public boolean ansiCodesSupported() { return ansiCodesSupported; }
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public void error(final String s) { logError(os, s); }
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public void warn(final String s) { logWarn(os, s); }
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public void info(final String s) { logInfo(os, s); }
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public void debug(final String s) { logDebug(os, s); }
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public void trace(final Throwable t) { write(os, new ForkError(t)); }
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};
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}
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private void writeEvents(final ObjectOutputStream os, final TaskDef taskDef, final ForkEvent[] events) {
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write(os, new Object[]{taskDef.fullyQualifiedName(), events});
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}
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private ExecutorService executorService(final ForkConfiguration config, final ObjectOutputStream os) {
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if(config.isParallel()) {
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final int nbThreads = Runtime.getRuntime().availableProcessors();
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logDebug(os, "Create a test executor with a thread pool of " + nbThreads + " threads.");
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// more options later...
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// TODO we might want to configure the blocking queue with size #proc
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return Executors.newFixedThreadPool(nbThreads);
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} else {
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logDebug(os, "Create a single-thread test executor");
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return Executors.newSingleThreadExecutor();
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}
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}
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private void runTests(final ObjectInputStream is, final ObjectOutputStream os) throws Exception {
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final ForkConfiguration config = (ForkConfiguration) is.readObject();
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final ExecutorService executor = executorService(config, os);
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final TaskDef[] tests = (TaskDef[]) is.readObject();
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final int nFrameworks = is.readInt();
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final Logger[] loggers = { remoteLogger(config.isAnsiCodesSupported(), os) };
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for (int i = 0; i < nFrameworks; i++) {
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final String[] implClassNames = (String[]) is.readObject();
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final String[] frameworkArgs = (String[]) is.readObject();
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final String[] remoteFrameworkArgs = (String[]) is.readObject();
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Framework framework = null;
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for (final String implClassName : implClassNames) {
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try {
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final Object rawFramework = Class.forName(implClassName).getDeclaredConstructor().newInstance();
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if (rawFramework instanceof Framework)
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framework = (Framework) rawFramework;
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else
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framework = new FrameworkWrapper((org.scalatools.testing.Framework) rawFramework);
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break;
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} catch (final ClassNotFoundException e) {
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logDebug(os, "Framework implementation '" + implClassName + "' not present.");
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}
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}
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if (framework == null)
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continue;
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final ArrayList<TaskDef> filteredTests = new ArrayList<TaskDef>();
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for (final Fingerprint testFingerprint : framework.fingerprints()) {
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for (final TaskDef test : tests) {
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// TODO: To pass in correct explicitlySpecified and selectors
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if (matches(testFingerprint, test.fingerprint()))
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filteredTests.add(new TaskDef(test.fullyQualifiedName(), test.fingerprint(), test.explicitlySpecified(), test.selectors()));
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}
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}
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final Runner runner = framework.runner(frameworkArgs, remoteFrameworkArgs, getClass().getClassLoader());
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final Task[] tasks = runner.tasks(filteredTests.toArray(new TaskDef[filteredTests.size()]));
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logDebug(os, "Runner for " + framework.getClass().getName() + " produced " + tasks.length + " initial tasks for " + filteredTests.size() + " tests.");
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runTestTasks(executor, tasks, loggers, os);
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runner.done();
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}
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write(os, ForkTags.Done);
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is.readObject();
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}
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private void runTestTasks(final ExecutorService executor, final Task[] tasks, final Logger[] loggers, final ObjectOutputStream os) {
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if( tasks.length > 0 ) {
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final List<Future<Task[]>> futureNestedTasks = new ArrayList<Future<Task[]>>();
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for( final Task task : tasks ) {
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futureNestedTasks.add(runTest(executor, task, loggers, os));
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}
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// Note: this could be optimized further, we could have a callback once a test finishes that executes immediately the nested tasks
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// At the moment, I'm especially interested in JUnit, which doesn't have nested tasks.
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final List<Task> nestedTasks = new ArrayList<Task>();
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for( final Future<Task[]> futureNestedTask : futureNestedTasks ) {
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try {
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nestedTasks.addAll( Arrays.asList(futureNestedTask.get()));
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} catch (final Exception e) {
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logError(os, "Failed to execute task " + futureNestedTask);
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}
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}
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runTestTasks(executor, nestedTasks.toArray(new Task[nestedTasks.size()]), loggers, os);
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}
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}
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private Future<Task[]> runTest(final ExecutorService executor, final Task task, final Logger[] loggers, final ObjectOutputStream os) {
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return executor.submit(new Callable<Task[]>() {
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@Override
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public Task[] call() {
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ForkEvent[] events;
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Task[] nestedTasks;
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final TaskDef taskDef = task.taskDef();
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try {
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final Collection<ForkEvent> eventList = new ConcurrentLinkedDeque<ForkEvent>();
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final EventHandler handler = new EventHandler() { public void handle(final Event e){ eventList.add(new ForkEvent(e)); } };
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logDebug(os, " Running " + taskDef);
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nestedTasks = task.execute(handler, loggers);
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if(nestedTasks.length > 0 || eventList.size() > 0)
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logDebug(os, " Produced " + nestedTasks.length + " nested tasks and " + eventList.size() + " events.");
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events = eventList.toArray(new ForkEvent[eventList.size()]);
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}
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catch (final Throwable t) {
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nestedTasks = new Task[0];
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events = new ForkEvent[] { testError(os, taskDef, "Uncaught exception when running " + taskDef.fullyQualifiedName() + ": " + t.toString(), t) };
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}
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writeEvents(os, taskDef, events);
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return nestedTasks;
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}
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});
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}
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private void internalError(final Throwable t) {
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System.err.println("Internal error when running tests: " + t.toString());
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}
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private ForkEvent testEvent(final String fullyQualifiedName, final Fingerprint fingerprint, final Selector selector, final Status r, final ForkError err, final long duration) {
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final OptionalThrowable throwable;
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if (err == null)
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throwable = new OptionalThrowable();
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else
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throwable = new OptionalThrowable(err);
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return new ForkEvent(new Event() {
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public String fullyQualifiedName() { return fullyQualifiedName; }
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public Fingerprint fingerprint() { return fingerprint; }
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public Selector selector() { return selector; }
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public Status status() { return r; }
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public OptionalThrowable throwable() {
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return throwable;
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}
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public long duration() {
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return duration;
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}
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});
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}
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private ForkEvent testError(final ObjectOutputStream os, final TaskDef taskDef, final String message, final Throwable t) {
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logError(os, message);
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final ForkError fe = new ForkError(t);
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write(os, fe);
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return testEvent(taskDef.fullyQualifiedName(), taskDef.fingerprint(), new SuiteSelector(), Status.Error, fe, 0);
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}
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}
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}
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