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/* -*- C++ -*-
This file contains a testsuite for the queueing behaviour in ThreadWeaver.
SPDX-FileCopyrightText: 2005-2013 Mirko Boehm <mirko@kde.org>
SPDX-License-Identifier: LGPL-2.0-or-later
*/
#include "QueueTests.h"
#include <QChar>
#include <QDebug>
#include <QObject>
#include <QTest>
#include <ThreadWeaver/Collection>
#include <ThreadWeaver/DebuggingAids>
#include <ThreadWeaver/DependencyPolicy>
#include <ThreadWeaver/Job>
#include <ThreadWeaver/QueuePolicy>
#include <ThreadWeaver/Queueing>
#include <ThreadWeaver/ResourceRestrictionPolicy>
#include <ThreadWeaver/Sequence>
#include <ThreadWeaver/State>
#include <ThreadWeaver/QObjectDecorator>
#include <ThreadWeaver/Thread>
#include <ThreadWeaver/ThreadWeaver>
QMutex s_GlobalMutex;
LowPriorityAppendCharacterJob::LowPriorityAppendCharacterJob(QChar c, QString *stringref)
: AppendCharacterJob(c, stringref)
{
}
int LowPriorityAppendCharacterJob ::priority() const
{
return -1;
}
HighPriorityAppendCharacterJob::HighPriorityAppendCharacterJob(QChar c, QString *stringref)
: AppendCharacterJob(c, stringref)
{
}
int HighPriorityAppendCharacterJob::priority() const
{
return 1;
}
SecondThreadThatQueues::SecondThreadThatQueues()
: QThread()
{
}
void SecondThreadThatQueues::run()
{
QString sequence;
AppendCharacterJob a('a', &sequence);
ThreadWeaver::enqueue_raw(&a);
ThreadWeaver::Queue::instance()->finish();
QCOMPARE(sequence, QString("a"));
}
QueueTests::QueueTests(QObject *parent)
: QObject(parent)
, autoDeleteJob(nullptr)
{
}
void QueueTests::initTestCase()
{
ThreadWeaver::setDebugLevel(true, 1);
}
void QueueTests::SimpleQueuePrioritiesTest()
{
using namespace ThreadWeaver;
Queue weaver;
weaver.setMaximumNumberOfThreads(1); // just one thread
QString sequence;
LowPriorityAppendCharacterJob jobA(QChar('a'), &sequence);
AppendCharacterJob jobB(QChar('b'), &sequence);
HighPriorityAppendCharacterJob jobC(QChar('c'), &sequence);
// queue low priority, then normal priority, then high priority
// if priorities are processed correctly, the jobs will be executed in reverse order
weaver.suspend();
enqueue_raw(&weaver, &jobA);
enqueue_raw(&weaver, &jobB);
enqueue_raw(&weaver, &jobC);
weaver.resume();
weaver.finish();
QCOMPARE(sequence, QString("cba"));
}
void QueueTests::WeaverInitializationTest()
{
// this one mostly tests the sanity of the startup behaviour
ThreadWeaver::Queue weaver;
QCOMPARE(weaver.currentNumberOfThreads(), 0);
QVERIFY(weaver.isEmpty());
QVERIFY(weaver.isIdle());
QVERIFY(weaver.queueLength() == 0);
weaver.finish();
}
void QueueTests::QueueFromSecondThreadTest()
{
ThreadWeaver::Queue::instance(); // create global instance in the main thread
SecondThreadThatQueues thread;
thread.start();
thread.wait();
QVERIFY(ThreadWeaver::Queue::instance()->isIdle());
}
void QueueTests::deleteJob(ThreadWeaver::JobPointer job)
{
// test that signals are properly emitted (asynchronously, that is):
QVERIFY(thread() == QThread::currentThread());
QVERIFY(job == autoDeleteJob);
delete autoDeleteJob;
autoDeleteJob = nullptr;
}
void QueueTests::DeleteDoneJobsFromSequenceTest()
{
using namespace ThreadWeaver;
QString sequence;
autoDeleteJob = new QObjectDecorator(new AppendCharacterJob(QChar('a'), &sequence));
AppendCharacterJob b(QChar('b'), &sequence);
AppendCharacterJob c(QChar('c'), &sequence);
Collection collection;
collection << make_job_raw(autoDeleteJob) << b << c;
QVERIFY(autoDeleteJob != nullptr);
QVERIFY(connect(autoDeleteJob, SIGNAL(done(ThreadWeaver::JobPointer)), SLOT(deleteJob(ThreadWeaver::JobPointer))));
stream() << collection;
QTest::qWait(100); // return to event queue to make sure signals are delivered
Queue::instance()->finish();
QTest::qWait(100); // return to event queue to make sure signals are delivered
// no need to delete a, that should be done in deleteJob
QVERIFY(autoDeleteJob == nullptr);
}
void QueueTests::deleteCollection(ThreadWeaver::JobPointer collection)
{
QVERIFY(thread() == QThread::currentThread());
QVERIFY(collection == autoDeleteCollection);
delete autoDeleteCollection;
autoDeleteCollection = nullptr;
}
void QueueTests::DeleteCollectionOnDoneTest()
{
using namespace ThreadWeaver;
QString sequence;
autoDeleteCollection = new QObjectDecorator(new Collection);
QVERIFY(connect(autoDeleteCollection, SIGNAL(done(ThreadWeaver::JobPointer)), SLOT(deleteCollection(ThreadWeaver::JobPointer))));
AppendCharacterJob a(QChar('a'), &sequence);
AppendCharacterJob b(QChar('b'), &sequence);
*autoDeleteCollection->collection() << a << b;
enqueue_raw(autoDeleteCollection);
// return to event queue to make sure signals are delivered
// (otherwise, no slot calls would happen before the end of this function)
// I assume the amount of time that we wait does not matter
QTest::qWait(10);
Queue::instance()->finish();
// return to event queue to make sure signals are delivered
QTest::qWait(10);
// no need to delete a, that should be done in deleteJob
QVERIFY(sequence.length() == 2);
QVERIFY(autoDeleteCollection == nullptr);
}
QTEST_MAIN(QueueTests)
#include "moc_QueueTests.cpp"
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