diff options
Diffstat (limited to 'tests/auto/corelib/tools/qsharedpointer/tst_qsharedpointer.cpp')
-rw-r--r-- | tests/auto/corelib/tools/qsharedpointer/tst_qsharedpointer.cpp | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/tests/auto/corelib/tools/qsharedpointer/tst_qsharedpointer.cpp b/tests/auto/corelib/tools/qsharedpointer/tst_qsharedpointer.cpp index 9bcce60e93..ac37b9af2a 100644 --- a/tests/auto/corelib/tools/qsharedpointer/tst_qsharedpointer.cpp +++ b/tests/auto/corelib/tools/qsharedpointer/tst_qsharedpointer.cpp @@ -112,6 +112,7 @@ private slots: void invalidConstructs(); void qvariantCast(); + void sharedFromThis(); public slots: void cleanup() { safetyCheck(); } @@ -2141,6 +2142,228 @@ void tst_QSharedPointer::qvariantCast() } } +class SomeClass : public QEnableSharedFromThis<SomeClass> +{ +public: + SomeClass() + { + } + + QSharedPointer<SomeClass> getSharedPtr() + { + return sharedFromThis(); + } + + QSharedPointer<const SomeClass> getSharedPtr() const + { + return sharedFromThis(); + } + + Data data; +}; + +void tst_QSharedPointer::sharedFromThis() +{ + const int generations = Data::generationCounter; + const int destructions = Data::destructorCounter; + + { + SomeClass sc; + QSharedPointer<SomeClass> scp = sc.sharedFromThis(); + QVERIFY(scp.isNull()); + QCOMPARE(Data::generationCounter, generations + 1); + QCOMPARE(Data::destructorCounter, destructions); + + QSharedPointer<const SomeClass> const_scp = sc.sharedFromThis(); + QVERIFY(const_scp.isNull()); + QCOMPARE(Data::generationCounter, generations + 1); + QCOMPARE(Data::destructorCounter, destructions); + } + + QCOMPARE(Data::generationCounter, generations + 1); + QCOMPARE(Data::destructorCounter, destructions + 1); + + { + const SomeClass sc; + QSharedPointer<const SomeClass> const_scp = sc.sharedFromThis(); + QVERIFY(const_scp.isNull()); + QCOMPARE(Data::generationCounter, generations + 2); + QCOMPARE(Data::destructorCounter, destructions + 1); + } + + QCOMPARE(Data::generationCounter, generations + 2); + QCOMPARE(Data::destructorCounter, destructions + 2); + + { + SomeClass *sc = new SomeClass; + QCOMPARE(Data::generationCounter, generations + 3); + QCOMPARE(Data::destructorCounter, destructions + 2); + + QSharedPointer<SomeClass> scp; + QVERIFY(scp.isNull()); + QCOMPARE(Data::generationCounter, generations + 3); + QCOMPARE(Data::destructorCounter, destructions + 2); + + scp = sc->sharedFromThis(); + QVERIFY(scp.isNull()); + QCOMPARE(Data::generationCounter, generations + 3); + QCOMPARE(Data::destructorCounter, destructions + 2); + + scp = QSharedPointer<SomeClass>(sc); + QVERIFY(!scp.isNull()); + QCOMPARE(scp.data(), sc); + QCOMPARE(Data::generationCounter, generations + 3); + QCOMPARE(Data::destructorCounter, destructions + 2); + + QSharedPointer<SomeClass> scp2; + QVERIFY(scp2.isNull()); + QCOMPARE(Data::generationCounter, generations + 3); + QCOMPARE(Data::destructorCounter, destructions + 2); + + scp2 = sc->sharedFromThis(); + QVERIFY(!scp2.isNull()); + QVERIFY(scp == scp2); + QCOMPARE(scp2.data(), sc); + QCOMPARE(Data::generationCounter, generations + 3); + QCOMPARE(Data::destructorCounter, destructions + 2); + + QSharedPointer<const SomeClass> scp3; + QVERIFY(scp3.isNull()); + QCOMPARE(Data::generationCounter, generations + 3); + QCOMPARE(Data::destructorCounter, destructions + 2); + + scp3 = sc->sharedFromThis(); + QVERIFY(!scp3.isNull()); + QVERIFY(scp == scp3); + QVERIFY(scp2 == scp3); + QCOMPARE(scp3.data(), sc); + QCOMPARE(Data::generationCounter, generations + 3); + QCOMPARE(Data::destructorCounter, destructions + 2); + + QSharedPointer<SomeClass> scp4; + QVERIFY(scp4.isNull()); + QCOMPARE(Data::generationCounter, generations + 3); + QCOMPARE(Data::destructorCounter, destructions + 2); + + scp4 = sc->getSharedPtr(); + QVERIFY(!scp4.isNull()); + QVERIFY(scp == scp4); + QVERIFY(scp2 == scp4); + QVERIFY(scp3 == scp4); + QCOMPARE(scp4.data(), sc); + QCOMPARE(Data::generationCounter, generations + 3); + QCOMPARE(Data::destructorCounter, destructions + 2); + + QSharedPointer<const SomeClass> scp5; + QVERIFY(scp5.isNull()); + QCOMPARE(Data::generationCounter, generations + 3); + QCOMPARE(Data::destructorCounter, destructions + 2); + + scp5 = const_cast<const SomeClass *>(sc)->getSharedPtr(); + QVERIFY(!scp4.isNull()); + QVERIFY(scp == scp5); + QVERIFY(scp2 == scp5); + QVERIFY(scp3 == scp5); + QVERIFY(scp4 == scp5); + QCOMPARE(scp5.data(), sc); + QCOMPARE(Data::generationCounter, generations + 3); + QCOMPARE(Data::destructorCounter, destructions + 2); + } + + QCOMPARE(Data::generationCounter, generations + 3); + QCOMPARE(Data::destructorCounter, destructions + 3); + + QSharedPointer<SomeClass> scp; + + QVERIFY(scp.isNull()); + + { + QSharedPointer<SomeClass> scp2(new SomeClass()); + QVERIFY(!scp2.isNull()); + + scp = scp2->sharedFromThis(); + QVERIFY(!scp.isNull()); + + QVERIFY(scp == scp2); + QCOMPARE(Data::generationCounter, generations + 4); + QCOMPARE(Data::destructorCounter, destructions + 3); + } + + + QCOMPARE(Data::generationCounter, generations + 4); + QCOMPARE(Data::destructorCounter, destructions + 3); + QVERIFY(!scp.isNull()); + + { + QSharedPointer<const SomeClass> scp2; + scp2 = scp->sharedFromThis(); + QVERIFY(!scp2.isNull()); + + QVERIFY(scp == scp2); + QCOMPARE(Data::generationCounter, generations + 4); + QCOMPARE(Data::destructorCounter, destructions + 3); + } + + QCOMPARE(Data::generationCounter, generations + 4); + QCOMPARE(Data::destructorCounter, destructions + 3); + QVERIFY(!scp.isNull()); + + { + QSharedPointer<SomeClass> scp2; + scp2 = scp->getSharedPtr(); + QVERIFY(!scp2.isNull()); + + QVERIFY(scp == scp2); + QCOMPARE(Data::generationCounter, generations + 4); + QCOMPARE(Data::destructorCounter, destructions + 3); + } + + QCOMPARE(Data::generationCounter, generations + 4); + QCOMPARE(Data::destructorCounter, destructions + 3); + QVERIFY(!scp.isNull()); + + { + QSharedPointer<const SomeClass> scp2; + scp2 = qSharedPointerConstCast<const SomeClass>(scp)->getSharedPtr(); + QVERIFY(!scp2.isNull()); + + QVERIFY(scp == scp2); + QCOMPARE(Data::generationCounter, generations + 4); + QCOMPARE(Data::destructorCounter, destructions + 3); + } + + QCOMPARE(Data::generationCounter, generations + 4); + QCOMPARE(Data::destructorCounter, destructions + 3); + QVERIFY(!scp.isNull()); + + { + QSharedPointer<SomeClass> scp2; + scp2 = scp->sharedFromThis(); + QVERIFY(!scp2.isNull()); + + QVERIFY(scp == scp2); + QCOMPARE(Data::generationCounter, generations + 4); + QCOMPARE(Data::destructorCounter, destructions + 3); + + scp2.clear(); + + QCOMPARE(Data::generationCounter, generations + 4); + QCOMPARE(Data::destructorCounter, destructions + 3); + QVERIFY(!scp.isNull()); + QVERIFY(scp2.isNull()); + } + + QCOMPARE(Data::generationCounter, generations + 4); + QCOMPARE(Data::destructorCounter, destructions + 3); + QVERIFY(!scp.isNull()); + + scp.clear(); + + QCOMPARE(Data::generationCounter, generations + 4); + QCOMPARE(Data::destructorCounter, destructions + 4); + +} + namespace ReentrancyWhileDestructing { struct IB { |