diff options
Diffstat (limited to 'tests/auto/corelib/thread/qmutex/tst_qmutex.cpp')
-rw-r--r-- | tests/auto/corelib/thread/qmutex/tst_qmutex.cpp | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/tests/auto/corelib/thread/qmutex/tst_qmutex.cpp b/tests/auto/corelib/thread/qmutex/tst_qmutex.cpp index b24ecfcd43..bf778e9fd1 100644 --- a/tests/auto/corelib/thread/qmutex/tst_qmutex.cpp +++ b/tests/auto/corelib/thread/qmutex/tst_qmutex.cpp @@ -44,8 +44,19 @@ class tst_QMutex : public QObject { Q_OBJECT +public: + enum class TimeUnit { + Nanoseconds, + Microseconds, + Milliseconds, + Seconds, + }; + Q_ENUM(TimeUnit); + private slots: void initTestCase(); + void convertToMilliseconds_data(); + void convertToMilliseconds(); void tryLock_non_recursive(); void try_lock_for_non_recursive(); void try_lock_until_non_recursive(); @@ -122,6 +133,109 @@ void tst_QMutex::initTestCase() initializeSystemTimersResolution(); } +void tst_QMutex::convertToMilliseconds_data() +{ + QTest::addColumn<TimeUnit>("unit"); + QTest::addColumn<double>("doubleValue"); + QTest::addColumn<qint64>("intValue"); + QTest::addColumn<qint64>("expected"); + + + auto add = [](TimeUnit unit, double d, long long i, qint64 expected) { + const QScopedArrayPointer<char> enumName(QTest::toString(unit)); + QTest::newRow(qPrintable(QString::asprintf("%s:%f:%lld", enumName.data(), d, i))) + << unit << d << qint64(i) << expected; + }; + + auto forAllUnitsAdd = [=](double d, long long i, qint64 expected) { + for (auto unit : {TimeUnit::Nanoseconds, TimeUnit::Microseconds, TimeUnit::Milliseconds, TimeUnit::Seconds}) + add(unit, d, i, expected); + }; + + forAllUnitsAdd(-0.5, -1, 0); // all negative values result in 0 + + forAllUnitsAdd(0, 0, 0); + + add(TimeUnit::Nanoseconds, 1, 1, 1); + add(TimeUnit::Nanoseconds, 1000 * 1000, 1000 * 1000, 1); + add(TimeUnit::Nanoseconds, 1000 * 1000 + 0.5, 1000 * 1000 + 1, 2); + + add(TimeUnit::Microseconds, 1, 1, 1); + add(TimeUnit::Microseconds, 1000, 1000, 1); + add(TimeUnit::Microseconds, 1000 + 0.5, 1000 + 1, 2); + + add(TimeUnit::Milliseconds, 1, 1, 1); + add(TimeUnit::Milliseconds, 1.5, 2, 2); + + add(TimeUnit::Seconds, 0.9991, 1, 1000); + + // + // overflowing int results in INT_MAX (equivalent to a spurious wakeup after ~24 days); check it: + // + + // spot on: + add(TimeUnit::Nanoseconds, INT_MAX * 1000. * 1000, INT_MAX * Q_INT64_C(1000) * 1000, INT_MAX); + add(TimeUnit::Microseconds, INT_MAX * 1000., INT_MAX * Q_INT64_C(1000), INT_MAX); + add(TimeUnit::Milliseconds, INT_MAX, INT_MAX, INT_MAX); + + // minimally above: + add(TimeUnit::Nanoseconds, INT_MAX * 1000. * 1000 + 1, INT_MAX * Q_INT64_C(1000) * 1000 + 1, INT_MAX); + add(TimeUnit::Microseconds, INT_MAX * 1000. + 1, INT_MAX * Q_INT64_C(1000) + 1, INT_MAX); + add(TimeUnit::Milliseconds, INT_MAX + 1., INT_MAX + Q_INT64_C(1), INT_MAX); + add(TimeUnit::Seconds, INT_MAX / 1000. + 1, INT_MAX / 1000 + 1, INT_MAX); + + // minimally below: + add(TimeUnit::Nanoseconds, INT_MAX * 1000. * 1000 - 1, INT_MAX * Q_INT64_C(1000) * 1000 - 1, INT_MAX); + add(TimeUnit::Microseconds, INT_MAX * 1000. - 1, INT_MAX * Q_INT64_C(1000) - 1, INT_MAX); + add(TimeUnit::Milliseconds, INT_MAX - 0.1, INT_MAX , INT_MAX); + +} + +void tst_QMutex::convertToMilliseconds() +{ +#if !QT_HAS_INCLUDE(<chrono>) + QSKIP("This test requires <chrono>"); +#else + QFETCH(TimeUnit, unit); + QFETCH(double, doubleValue); + QFETCH(qint64, intValue); + QFETCH(qint64, expected); + + Q_CONSTEXPR qint64 maxShort = std::numeric_limits<short>::max(); + Q_CONSTEXPR qint64 maxInt = std::numeric_limits<int>::max(); + Q_CONSTEXPR qint64 maxUInt = std::numeric_limits<uint>::max(); + + switch (unit) { +#define CASE(Unit, Period) \ + case TimeUnit::Unit: \ + DO(double, Period, doubleValue); \ + if (intValue < maxShort) \ + DO(short, Period, short(intValue)); \ + if (intValue < maxInt) \ + DO(int, Period, int(intValue)); \ + DO(qint64, Period, intValue); \ + if (intValue >= 0) { \ + if (intValue < maxUInt) \ + DO(uint, Period, uint(intValue)); \ + DO(quint64, Period, quint64(intValue)); \ + } \ + break +#define DO(Rep, Period, val) \ + do { \ + const std::chrono::duration<Rep, Period> wait((val)); \ + QCOMPARE(QMutex::convertToMilliseconds(wait), expected); \ + } while (0) + + CASE(Nanoseconds, std::nano); + CASE(Microseconds, std::micro); + CASE(Milliseconds, std::milli); + CASE(Seconds, std::ratio<1>); +#undef DO +#undef CASE + } +#endif +} + void tst_QMutex::tryLock_non_recursive() { class Thread : public QThread |