diff options
Diffstat (limited to 'tests/auto/qsharedpointer/tst_qsharedpointer.cpp')
-rw-r--r-- | tests/auto/qsharedpointer/tst_qsharedpointer.cpp | 137 |
1 files changed, 128 insertions, 9 deletions
diff --git a/tests/auto/qsharedpointer/tst_qsharedpointer.cpp b/tests/auto/qsharedpointer/tst_qsharedpointer.cpp index 64439fb..a52bb3e 100644 --- a/tests/auto/qsharedpointer/tst_qsharedpointer.cpp +++ b/tests/auto/qsharedpointer/tst_qsharedpointer.cpp @@ -57,8 +57,11 @@ private slots: void downCast(); void upCast(); void differentPointers(); + void virtualBaseDifferentPointers(); #ifndef QTEST_NO_RTTI void dynamicCast(); + void dynamicCastDifferentPointers(); + void dynamicCastVirtualBase(); void dynamicCastFailure(); #endif void customDeleter(); @@ -321,6 +324,10 @@ class DiffPtrDerivedData: public Stuffing, public Data { }; +class VirtualDerived: virtual public Data +{ +}; + void tst_QSharedPointer::downCast() { { @@ -439,7 +446,7 @@ void tst_QSharedPointer::differentPointers() DiffPtrDerivedData *aData = new DiffPtrDerivedData; Data *aBase = aData; Q_ASSERT(aData == aBase); - Q_ASSERT(quintptr(&aData) != quintptr(&aBase)); + Q_ASSERT(*reinterpret_cast<quintptr *>(&aData) != *reinterpret_cast<quintptr *>(&aBase)); QSharedPointer<Data> baseptr = QSharedPointer<Data>(aData); QSharedPointer<DiffPtrDerivedData> ptr = qSharedPointerCast<DiffPtrDerivedData>(baseptr); @@ -453,7 +460,7 @@ void tst_QSharedPointer::differentPointers() DiffPtrDerivedData *aData = new DiffPtrDerivedData; Data *aBase = aData; Q_ASSERT(aData == aBase); - Q_ASSERT(quintptr(&aData) != quintptr(&aBase)); + Q_ASSERT(*reinterpret_cast<quintptr *>(&aData) != *reinterpret_cast<quintptr *>(&aBase)); QSharedPointer<DiffPtrDerivedData> ptr = QSharedPointer<DiffPtrDerivedData>(aData); QSharedPointer<Data> baseptr = ptr; @@ -464,23 +471,53 @@ void tst_QSharedPointer::differentPointers() QVERIFY(baseptr == aData); QVERIFY(baseptr == aBase); } +} + +void tst_QSharedPointer::virtualBaseDifferentPointers() +{ + { + VirtualDerived *aData = new VirtualDerived; + Data *aBase = aData; + Q_ASSERT(aData == aBase); + Q_ASSERT(*reinterpret_cast<quintptr *>(&aData) != *reinterpret_cast<quintptr *>(&aBase)); + + QSharedPointer<VirtualDerived> ptr = QSharedPointer<VirtualDerived>(aData); + QSharedPointer<Data> baseptr = qSharedPointerCast<Data>(ptr); + QVERIFY(ptr == baseptr); + QVERIFY(ptr.data() == baseptr.data()); + QVERIFY(ptr == aBase); + QVERIFY(ptr == aData); + QVERIFY(baseptr == aData); + QVERIFY(baseptr == aBase); + } + + { + VirtualDerived *aData = new VirtualDerived; + Data *aBase = aData; + Q_ASSERT(aData == aBase); + Q_ASSERT(*reinterpret_cast<quintptr *>(&aData) != *reinterpret_cast<quintptr *>(&aBase)); - // there is no possibility for different pointers in - // internal reference counting right now - // - // to do that, it's necessary to first implement the ability to - // call (virtual) functions, so that the two differing bases have - // the same reference counter + QSharedPointer<VirtualDerived> ptr = QSharedPointer<VirtualDerived>(aData); + QSharedPointer<Data> baseptr = ptr; + QVERIFY(ptr == baseptr); + QVERIFY(ptr.data() == baseptr.data()); + QVERIFY(ptr == aBase); + QVERIFY(ptr == aData); + QVERIFY(baseptr == aData); + QVERIFY(baseptr == aBase); + } } #ifndef QTEST_NO_RTTI void tst_QSharedPointer::dynamicCast() { - QSharedPointer<Data> baseptr = QSharedPointer<Data>(new DerivedData); + DerivedData *aData = new DerivedData; + QSharedPointer<Data> baseptr = QSharedPointer<Data>(aData); { QSharedPointer<DerivedData> derivedptr = qSharedPointerDynamicCast<DerivedData>(baseptr); QVERIFY(baseptr == derivedptr); + QCOMPARE(derivedptr.data(), aData); QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data()); } QCOMPARE(int(baseptr.d->weakref), 1); @@ -490,6 +527,7 @@ void tst_QSharedPointer::dynamicCast() QWeakPointer<Data> weakptr = baseptr; QSharedPointer<DerivedData> derivedptr = qSharedPointerDynamicCast<DerivedData>(weakptr); QVERIFY(baseptr == derivedptr); + QCOMPARE(derivedptr.data(), aData); QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data()); } QCOMPARE(int(baseptr.d->weakref), 1); @@ -498,6 +536,87 @@ void tst_QSharedPointer::dynamicCast() { QSharedPointer<DerivedData> derivedptr = baseptr.dynamicCast<DerivedData>(); QVERIFY(baseptr == derivedptr); + QCOMPARE(derivedptr.data(), aData); + QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data()); + } + QCOMPARE(int(baseptr.d->weakref), 1); + QCOMPARE(int(baseptr.d->strongref), 1); +} + +void tst_QSharedPointer::dynamicCastDifferentPointers() +{ + // DiffPtrDerivedData derives from both Data and Stuffing + DiffPtrDerivedData *aData = new DiffPtrDerivedData; + QSharedPointer<Data> baseptr = QSharedPointer<Data>(aData); + + { + QSharedPointer<DiffPtrDerivedData> derivedptr = qSharedPointerDynamicCast<DiffPtrDerivedData>(baseptr); + QVERIFY(baseptr == derivedptr); + QCOMPARE(derivedptr.data(), aData); + QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data()); + } + QCOMPARE(int(baseptr.d->weakref), 1); + QCOMPARE(int(baseptr.d->strongref), 1); + + { + QWeakPointer<Data> weakptr = baseptr; + QSharedPointer<DiffPtrDerivedData> derivedptr = qSharedPointerDynamicCast<DiffPtrDerivedData>(weakptr); + QVERIFY(baseptr == derivedptr); + QCOMPARE(derivedptr.data(), aData); + QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data()); + } + QCOMPARE(int(baseptr.d->weakref), 1); + QCOMPARE(int(baseptr.d->strongref), 1); + + { + QSharedPointer<DiffPtrDerivedData> derivedptr = baseptr.dynamicCast<DiffPtrDerivedData>(); + QVERIFY(baseptr == derivedptr); + QCOMPARE(derivedptr.data(), aData); + QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data()); + } + QCOMPARE(int(baseptr.d->weakref), 1); + QCOMPARE(int(baseptr.d->strongref), 1); + + { + Stuffing *nakedptr = dynamic_cast<Stuffing *>(baseptr.data()); + QVERIFY(nakedptr); + + QSharedPointer<Stuffing> otherbaseptr = qSharedPointerDynamicCast<Stuffing>(baseptr); + QVERIFY(!otherbaseptr.isNull()); + QVERIFY(otherbaseptr == nakedptr); + QCOMPARE(otherbaseptr.data(), nakedptr); + QCOMPARE(static_cast<DiffPtrDerivedData*>(otherbaseptr.data()), aData); + } +} + +void tst_QSharedPointer::dynamicCastVirtualBase() +{ + VirtualDerived *aData = new VirtualDerived; + QSharedPointer<Data> baseptr = QSharedPointer<Data>(aData); + + { + QSharedPointer<VirtualDerived> derivedptr = qSharedPointerDynamicCast<VirtualDerived>(baseptr); + QVERIFY(baseptr == derivedptr); + QCOMPARE(derivedptr.data(), aData); + QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data()); + } + QCOMPARE(int(baseptr.d->weakref), 1); + QCOMPARE(int(baseptr.d->strongref), 1); + + { + QWeakPointer<Data> weakptr = baseptr; + QSharedPointer<VirtualDerived> derivedptr = qSharedPointerDynamicCast<VirtualDerived>(weakptr); + QVERIFY(baseptr == derivedptr); + QCOMPARE(derivedptr.data(), aData); + QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data()); + } + QCOMPARE(int(baseptr.d->weakref), 1); + QCOMPARE(int(baseptr.d->strongref), 1); + + { + QSharedPointer<VirtualDerived> derivedptr = baseptr.dynamicCast<VirtualDerived>(); + QVERIFY(baseptr == derivedptr); + QCOMPARE(derivedptr.data(), aData); QCOMPARE(static_cast<Data *>(derivedptr.data()), baseptr.data()); } QCOMPARE(int(baseptr.d->weakref), 1); |