diff options
Diffstat (limited to 'tests/auto/corelib/io/qdebug/tst_qdebug.cpp')
| -rw-r--r-- | tests/auto/corelib/io/qdebug/tst_qdebug.cpp | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/tests/auto/corelib/io/qdebug/tst_qdebug.cpp b/tests/auto/corelib/io/qdebug/tst_qdebug.cpp index 07e011f449..3f53ab5f0a 100644 --- a/tests/auto/corelib/io/qdebug/tst_qdebug.cpp +++ b/tests/auto/corelib/io/qdebug/tst_qdebug.cpp @@ -44,6 +44,9 @@ #include <QtCore/QtDebug> #include <QtTest/QtTest> +#include <QtConcurrentRun> +#include <QFutureSynchronizer> + class tst_QDebug: public QObject { Q_OBJECT @@ -59,6 +62,7 @@ private slots: void qDebugQLatin1String() const; void textStreamModifiers() const; void defaultMessagehandler() const; + void threadSafety() const; }; void tst_QDebug::assignment() const @@ -315,5 +319,41 @@ void tst_QDebug::defaultMessagehandler() const QVERIFY(same); } +QMutex s_mutex; +QStringList s_messages; +QSemaphore s_sema; + +static void threadSafeMessageHandler(QtMsgType type, const QMessageLogContext &context, const QString &msg) +{ + QMutexLocker lock(&s_mutex); + s_messages.append(msg); + Q_UNUSED(type); + Q_UNUSED(context); +} + +static void doDebug() // called in each thread +{ + s_sema.acquire(); + qDebug() << "doDebug"; +} + +void tst_QDebug::threadSafety() const +{ + MessageHandlerSetter mhs(threadSafeMessageHandler); + const int numThreads = 10; + QThreadPool::globalInstance()->setMaxThreadCount(numThreads); + QFutureSynchronizer<void> sync; + for (int i = 0; i < numThreads; ++i) { + sync.addFuture(QtConcurrent::run(&doDebug)); + } + s_sema.release(numThreads); + sync.waitForFinished(); + QMutexLocker lock(&s_mutex); + QCOMPARE(s_messages.count(), numThreads); + for (int i = 0; i < numThreads; ++i) { + QCOMPARE(s_messages.at(i), QStringLiteral("doDebug")); + } +} + QTEST_MAIN(tst_QDebug); #include "tst_qdebug.moc" |