diff options
Diffstat (limited to 'tests/auto/corelib/tools/qscopedpointer/tst_qscopedpointer.cpp')
-rw-r--r-- | tests/auto/corelib/tools/qscopedpointer/tst_qscopedpointer.cpp | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/tests/auto/corelib/tools/qscopedpointer/tst_qscopedpointer.cpp b/tests/auto/corelib/tools/qscopedpointer/tst_qscopedpointer.cpp index 66ea3e940c..cb0382eb66 100644 --- a/tests/auto/corelib/tools/qscopedpointer/tst_qscopedpointer.cpp +++ b/tests/auto/corelib/tools/qscopedpointer/tst_qscopedpointer.cpp @@ -42,6 +42,8 @@ #include <QtTest/QtTest> #include <QtCore/QScopedPointer> +#include <utility> + /*! \class tst_QScopedPointer \internal @@ -73,6 +75,7 @@ private Q_SLOTS: void objectSize(); void comparison(); void array(); + void move(); // TODO instanciate on const object }; @@ -458,6 +461,158 @@ void tst_QScopedPointer::array() QCOMPARE(instCount, RefCounted::instanceCount.load()); } +#ifdef Q_COMPILER_RVALUE_REFS +struct CountedInteger +{ + CountedInteger(int i) : i(i) + { + ++instanceCount; + } + ~CountedInteger() + { + --instanceCount; + } + CountedInteger(const CountedInteger &c) + : i(c.i) + { + ++instanceCount; + } + + static int instanceCount; + int i; +}; + +int CountedInteger::instanceCount = 0; + +QScopedPointer<CountedInteger> returnScopedPointer(int i) +{ + return QScopedPointer<CountedInteger>(new CountedInteger(i)); +} +#endif + +void tst_QScopedPointer::move() +{ +#ifndef Q_COMPILER_RVALUE_REFS + QSKIP("This test requires rvalues refs"); +#else + QCOMPARE(CountedInteger::instanceCount, 0); + + { + QScopedPointer<CountedInteger> p = returnScopedPointer(42); + QVERIFY(!p.isNull()); + QCOMPARE(p->i, 42); + QCOMPARE(CountedInteger::instanceCount, 1); + + QScopedPointer<CountedInteger> q = returnScopedPointer(51); + QVERIFY(!q.isNull()); + QCOMPARE(q->i, 51); + QCOMPARE(CountedInteger::instanceCount, 2); + + q = returnScopedPointer(123); + QVERIFY(!q.isNull()); + QCOMPARE(q->i, 123); + QCOMPARE(CountedInteger::instanceCount, 2); + + p = std::move(q); + QVERIFY(!p.isNull()); + QCOMPARE(p->i, 123); + QVERIFY(q.isNull()); + QCOMPARE(CountedInteger::instanceCount, 1); + + p = std::move(q); + QVERIFY(p.isNull()); + QVERIFY(q.isNull()); + QCOMPARE(CountedInteger::instanceCount, 0); + } + + QCOMPARE(CountedInteger::instanceCount, 0); + + { + QScopedPointer<CountedInteger> p = returnScopedPointer(1024); + QVERIFY(!p.isNull()); + QCOMPARE(p->i, 1024); + QCOMPARE(CountedInteger::instanceCount, 1); + + p.reset(); + QVERIFY(p.isNull()); + QCOMPARE(CountedInteger::instanceCount, 0); + + p = returnScopedPointer(1024); + const CountedInteger * const rawPtr = p.data(); + p = std::move(p); + // now p is in a "valid, but unspecified state". so the test must not crash. + // we do actually know that this move should've been a noop. + QVERIFY(!p.isNull()); + QCOMPARE(p.data(), rawPtr); + QCOMPARE(p->i, 1024); + QCOMPARE(CountedInteger::instanceCount, 1); + + p.reset(); + QVERIFY(p.isNull()); + QCOMPARE(CountedInteger::instanceCount, 0); + } + + QCOMPARE(CountedInteger::instanceCount, 0); + + { + QScopedPointer<CountedInteger> p = returnScopedPointer(-1); + QVERIFY(!p.isNull()); + QCOMPARE(p->i, -1); + QCOMPARE(CountedInteger::instanceCount, 1); + } + + QCOMPARE(CountedInteger::instanceCount, 0); + + { + QScopedPointer<CountedInteger> p = returnScopedPointer(0); + QVERIFY(!p.isNull()); + QCOMPARE(p->i, 0); + QCOMPARE(CountedInteger::instanceCount, 1); + + QScopedPointer<CountedInteger> q; + QVERIFY(q.isNull()); + + p = std::move(q); + QVERIFY(p.isNull()); + QVERIFY(q.isNull()); + QCOMPARE(CountedInteger::instanceCount, 0); + } + + QCOMPARE(CountedInteger::instanceCount, 0); + + { + QScopedPointer<CountedInteger> p; + QVERIFY(p.isNull()); + QCOMPARE(CountedInteger::instanceCount, 0); + + QScopedPointer<CountedInteger> q = returnScopedPointer(123); + QVERIFY(!q.isNull()); + QCOMPARE(q->i, 123); + QCOMPARE(CountedInteger::instanceCount, 1); + + p = std::move(q); + QVERIFY(!p.isNull()); + QCOMPARE(p->i, 123); + QVERIFY(q.isNull()); + QCOMPARE(CountedInteger::instanceCount, 1); + } + + QCOMPARE(CountedInteger::instanceCount, 0); + + { + QScopedPointer<CountedInteger> p; + QVERIFY(p.isNull()); + QCOMPARE(CountedInteger::instanceCount, 0); + + p = returnScopedPointer(2001); + QVERIFY(!p.isNull()); + QCOMPARE(p->i, 2001); + QCOMPARE(CountedInteger::instanceCount, 1); + } + + QCOMPARE(CountedInteger::instanceCount, 0); +#endif +} QTEST_MAIN(tst_QScopedPointer) #include "tst_qscopedpointer.moc" |