diff options
Diffstat (limited to 'tests/auto/corelib/kernel/qmath/tst_qmath.cpp')
| -rw-r--r-- | tests/auto/corelib/kernel/qmath/tst_qmath.cpp | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/tests/auto/corelib/kernel/qmath/tst_qmath.cpp b/tests/auto/corelib/kernel/qmath/tst_qmath.cpp index 24934ac138..8d6964cbcd 100644 --- a/tests/auto/corelib/kernel/qmath/tst_qmath.cpp +++ b/tests/auto/corelib/kernel/qmath/tst_qmath.cpp @@ -54,6 +54,14 @@ private slots: void degreesToRadians(); void radiansToDegrees_data(); void radiansToDegrees(); + void qNextPowerOfTwo32S_data(); + void qNextPowerOfTwo32S(); + void qNextPowerOfTwo64S_data(); + void qNextPowerOfTwo64S(); + void qNextPowerOfTwo32U_data(); + void qNextPowerOfTwo32U(); + void qNextPowerOfTwo64U_data(); + void qNextPowerOfTwo64U(); }; void tst_QMath::fastSinCos() @@ -137,6 +145,117 @@ void tst_QMath::radiansToDegrees() QCOMPARE(qRadiansToDegrees(radiansDouble), degreesDouble); } + +void tst_QMath::qNextPowerOfTwo32S_data() +{ + QTest::addColumn<qint32>("input"); + QTest::addColumn<quint32>("output"); + + QTest::newRow("0") << 0 << 1U; + QTest::newRow("1") << 1 << 2U; + QTest::newRow("2") << 2 << 4U; + QTest::newRow("17") << 17 << 32U; + QTest::newRow("128") << 128 << 256U; + QTest::newRow("65535") << 65535 << 65536U; + QTest::newRow("65536") << 65536 << 131072U; + QTest::newRow("2^30") << (1 << 30) << (1U << 31); + QTest::newRow("2^30 + 1") << (1 << 30) + 1 << (1U << 31); + QTest::newRow("2^31 - 1") << 0x7FFFFFFF << (1U<<31); + QTest::newRow("-1") << -1 << 0U; + QTest::newRow("-128") << -128 << 0U; + QTest::newRow("-(2^31)") << int(0x80000000) << 0U; +} + +void tst_QMath::qNextPowerOfTwo32S() +{ + QFETCH(qint32, input); + QFETCH(quint32, output); + + QCOMPARE(qNextPowerOfTwo(input), output); +} + +void tst_QMath::qNextPowerOfTwo32U_data() +{ + QTest::addColumn<quint32>("input"); + QTest::addColumn<quint32>("output"); + + QTest::newRow("0") << 0U << 1U; + QTest::newRow("1") << 1U << 2U; + QTest::newRow("2") << 2U << 4U; + QTest::newRow("17") << 17U << 32U; + QTest::newRow("128") << 128U << 256U; + QTest::newRow("65535") << 65535U << 65536U; + QTest::newRow("65536") << 65536U << 131072U; + QTest::newRow("2^30") << (1U << 30) << (1U << 31); + QTest::newRow("2^30 + 1") << (1U << 30) + 1 << (1U << 31); + QTest::newRow("2^31 - 1") << 2147483647U << 2147483648U; + QTest::newRow("2^31") << 2147483648U << 0U; + QTest::newRow("2^31 + 1") << 2147483649U << 0U; +} + +void tst_QMath::qNextPowerOfTwo32U() +{ + QFETCH(quint32, input); + QFETCH(quint32, output); + + QCOMPARE(qNextPowerOfTwo(input), output); +} + +void tst_QMath::qNextPowerOfTwo64S_data() +{ + QTest::addColumn<qint64>("input"); + QTest::addColumn<quint64>("output"); + + QTest::newRow("0") << Q_INT64_C(0) << Q_UINT64_C(1); + QTest::newRow("1") << Q_INT64_C(1) << Q_UINT64_C(2); + QTest::newRow("2") << Q_INT64_C(2) << Q_UINT64_C(4); + QTest::newRow("17") << Q_INT64_C(17) << Q_UINT64_C(32); + QTest::newRow("128") << Q_INT64_C(128) << Q_UINT64_C(256); + QTest::newRow("65535") << Q_INT64_C(65535) << Q_UINT64_C(65536); + QTest::newRow("65536") << Q_INT64_C(65536) << Q_UINT64_C(131072); + QTest::newRow("2^31 - 1") << Q_INT64_C(2147483647) << Q_UINT64_C(0x80000000); + QTest::newRow("2^31") << Q_INT64_C(2147483648) << Q_UINT64_C(0x100000000); + QTest::newRow("2^31 + 1") << Q_INT64_C(2147483649) << Q_UINT64_C(0x100000000); + QTest::newRow("2^63 - 1") << Q_INT64_C(0x7FFFFFFFFFFFFFFF) << Q_UINT64_C(0x8000000000000000); + QTest::newRow("-1") << Q_INT64_C(-1) << Q_UINT64_C(0); + QTest::newRow("-128") << Q_INT64_C(-128) << Q_UINT64_C(0); + QTest::newRow("-(2^31)") << -Q_INT64_C(0x80000000) << Q_UINT64_C(0); + QTest::newRow("-(2^63)") << (qint64)Q_INT64_C(0x8000000000000000) << Q_UINT64_C(0); +} + +void tst_QMath::qNextPowerOfTwo64S() +{ + QFETCH(qint64, input); + QFETCH(quint64, output); + + QCOMPARE(qNextPowerOfTwo(input), output); +} + +void tst_QMath::qNextPowerOfTwo64U_data() +{ + QTest::addColumn<quint64>("input"); + QTest::addColumn<quint64>("output"); + + QTest::newRow("0") << Q_UINT64_C(0) << Q_UINT64_C(1); + QTest::newRow("1") << Q_UINT64_C(1) << Q_UINT64_C(2); + QTest::newRow("2") << Q_UINT64_C(2) << Q_UINT64_C(4); + QTest::newRow("17") << Q_UINT64_C(17) << Q_UINT64_C(32); + QTest::newRow("128") << Q_UINT64_C(128) << Q_UINT64_C(256); + QTest::newRow("65535") << Q_UINT64_C(65535) << Q_UINT64_C(65536); + QTest::newRow("65536") << Q_UINT64_C(65536) << Q_UINT64_C(131072); + QTest::newRow("2^63 - 1") << Q_UINT64_C(0x7FFFFFFFFFFFFFFF) << Q_UINT64_C(0x8000000000000000); + QTest::newRow("2^63") << Q_UINT64_C(0x8000000000000000) << Q_UINT64_C(0); + QTest::newRow("2^63 + 1") << Q_UINT64_C(0x8000000000000001) << Q_UINT64_C(0); +} + +void tst_QMath::qNextPowerOfTwo64U() +{ + QFETCH(quint64, input); + QFETCH(quint64, output); + + QCOMPARE(qNextPowerOfTwo(input), output); +} + QTEST_APPLESS_MAIN(tst_QMath) #include "tst_qmath.moc" |