diff options
Diffstat (limited to 'tests/auto/qvarlengtharray/tst_qvarlengtharray.cpp')
| -rw-r--r-- | tests/auto/qvarlengtharray/tst_qvarlengtharray.cpp | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/tests/auto/qvarlengtharray/tst_qvarlengtharray.cpp b/tests/auto/qvarlengtharray/tst_qvarlengtharray.cpp index 5708726..26da506 100644 --- a/tests/auto/qvarlengtharray/tst_qvarlengtharray.cpp +++ b/tests/auto/qvarlengtharray/tst_qvarlengtharray.cpp @@ -63,6 +63,7 @@ private slots: void oldTests(); void task214223(); void QTBUG6718_resize(); + void QTBUG10978_realloc(); }; int fooCtor = 0; @@ -304,5 +305,302 @@ void tst_QVarLengthArray::QTBUG6718_resize() } } +struct MyBase +{ + MyBase() + : data(this) + , isCopy(false) + { + ++liveCount; + } + + MyBase(MyBase const &) + : data(this) + , isCopy(true) + { + ++copyCount; + ++liveCount; + } + + MyBase & operator=(MyBase const &) + { + if (!isCopy) { + isCopy = true; + ++copyCount; + } else { + ++errorCount; + } + + return *this; + } + + ~MyBase() + { + if (isCopy) { + if (!copyCount) + ++errorCount; + else + --copyCount; + } + + if (!liveCount) + ++errorCount; + else + --liveCount; + } + + bool hasMoved() const + { + return this != data; + } + +protected: + MyBase const * const data; + bool isCopy; + +public: + static int errorCount; + static int liveCount; + static int copyCount; +}; + +int MyBase::errorCount = 0; +int MyBase::liveCount = 0; +int MyBase::copyCount = 0; + +struct MyPrimitive + : MyBase +{ + MyPrimitive() + { + ++errorCount; + } + + ~MyPrimitive() + { + ++errorCount; + } + + MyPrimitive(MyPrimitive const &other) + : MyBase(other) + { + ++errorCount; + } +}; + +struct MyMovable + : MyBase +{ +}; + +struct MyComplex + : MyBase +{ +}; + +QT_BEGIN_NAMESPACE + +Q_DECLARE_TYPEINFO(MyPrimitive, Q_PRIMITIVE_TYPE); +Q_DECLARE_TYPEINFO(MyMovable, Q_MOVABLE_TYPE); +Q_DECLARE_TYPEINFO(MyComplex, Q_COMPLEX_TYPE); + +QT_END_NAMESPACE + +bool QTBUG10978_proceed = true; + +template <class T, int PreAlloc> +int countMoved(QVarLengthArray<T, PreAlloc> const &c) +{ + int result = 0; + for (int i = 0; i < c.size(); ++i) + if (c[i].hasMoved()) + ++result; + + return result; +} + +template <class T> +void QTBUG10978_test() +{ + QTBUG10978_proceed = false; + + typedef QVarLengthArray<T, 16> Container; + enum { + isStatic = QTypeInfo<T>::isStatic, + isComplex = QTypeInfo<T>::isComplex, + + isPrimitive = !isComplex && !isStatic, + isMovable = !isStatic + }; + + // Constructors + Container a; + QCOMPARE( MyBase::liveCount, 0 ); + QCOMPARE( MyBase::copyCount, 0 ); + + QVERIFY( a.capacity() >= 16 ); + QCOMPARE( a.size(), 0 ); + + Container b_real(8); + Container const &b = b_real; + QCOMPARE( MyBase::liveCount, isPrimitive ? 0 : 8 ); + QCOMPARE( MyBase::copyCount, 0 ); + + QVERIFY( b.capacity() >= 16 ); + QCOMPARE( b.size(), 8 ); + + // Assignment + a = b; + QCOMPARE( MyBase::liveCount, isPrimitive ? 0 : 16 ); + QCOMPARE( MyBase::copyCount, isComplex ? 8 : 0 ); + QVERIFY( a.capacity() >= 16 ); + QCOMPARE( a.size(), 8 ); + + QVERIFY( b.capacity() >= 16 ); + QCOMPARE( b.size(), 8 ); + + // append + a.append(b.data(), b.size()); + QCOMPARE( MyBase::liveCount, isPrimitive ? 0 : 24 ); + QCOMPARE( MyBase::copyCount, isComplex ? 16 : 0 ); + + QVERIFY( a.capacity() >= 16 ); + QCOMPARE( a.size(), 16 ); + + QVERIFY( b.capacity() >= 16 ); + QCOMPARE( b.size(), 8 ); + + // removeLast + a.removeLast(); + QCOMPARE( MyBase::liveCount, isPrimitive ? 0 : 23 ); + QCOMPARE( MyBase::copyCount, isComplex ? 15 : 0 ); + + QVERIFY( a.capacity() >= 16 ); + QCOMPARE( a.size(), 15 ); + + QVERIFY( b.capacity() >= 16 ); + QCOMPARE( b.size(), 8 ); + + // Movable types + const int capacity = a.capacity(); + if (!isPrimitive) + QCOMPARE( countMoved(a), 0 ); + + // Reserve, no re-allocation + a.reserve(capacity); + if (!isPrimitive) + QCOMPARE( countMoved(a), 0 ); + QCOMPARE( MyBase::liveCount, isPrimitive ? 0 : 23 ); + QCOMPARE( MyBase::copyCount, isComplex ? 15 : 0 ); + + QCOMPARE( a.capacity(), capacity ); + QCOMPARE( a.size(), 15 ); + + QVERIFY( b.capacity() >= 16 ); + QCOMPARE( b.size(), 8 ); + + // Reserve, force re-allocation + a.reserve(capacity * 2); + if (!isPrimitive) + QCOMPARE( countMoved(a), isMovable ? 15 : 0 ); + QCOMPARE( MyBase::liveCount, isPrimitive ? 0 : 23 ); + QCOMPARE( MyBase::copyCount, isComplex ? 15 : 0 ); + + QVERIFY( a.capacity() >= capacity * 2 ); + QCOMPARE( a.size(), 15 ); + + QVERIFY( b.capacity() >= 16 ); + QCOMPARE( b.size(), 8 ); + + // resize, grow + a.resize(40); + if (!isPrimitive) + QCOMPARE( countMoved(a), isMovable ? 15 : 0 ); + QCOMPARE( MyBase::liveCount, isPrimitive ? 0 : 48 ); + QCOMPARE( MyBase::copyCount, isComplex ? 15 : 0 ); + + QVERIFY( a.capacity() >= a.size() ); + QCOMPARE( a.size(), 40 ); + + QVERIFY( b.capacity() >= 16 ); + QCOMPARE( b.size(), 8 ); + + // Copy constructor, allocate + { + Container c(a); + if (!isPrimitive) + QCOMPARE( countMoved(c), 0 ); + QCOMPARE( MyBase::liveCount, isPrimitive ? 0 : 88 ); + QCOMPARE( MyBase::copyCount, isComplex ? 55 : 0 ); + + QVERIFY( a.capacity() >= a.size() ); + QCOMPARE( a.size(), 40 ); + + QVERIFY( b.capacity() >= 16 ); + QCOMPARE( b.size(), 8 ); + + QVERIFY( c.capacity() >= 40 ); + QCOMPARE( c.size(), 40 ); + } + + // resize, shrink + a.resize(10); + if (!isPrimitive) + QCOMPARE( countMoved(a), isMovable ? 10 : 0 ); + QCOMPARE( MyBase::liveCount, isPrimitive ? 0 : 18 ); + QCOMPARE( MyBase::copyCount, isComplex ? 10 : 0 ); + + QVERIFY( a.capacity() >= a.size() ); + QCOMPARE( a.size(), 10 ); + + QVERIFY( b.capacity() >= 16 ); + QCOMPARE( b.size(), 8 ); + + // Copy constructor, don't allocate + { + Container c(a); + if (!isPrimitive) + QCOMPARE( countMoved(c), 0 ); + QCOMPARE( MyBase::liveCount, isPrimitive ? 0 : 28 ); + QCOMPARE( MyBase::copyCount, isComplex ? 20 : 0 ); + + QVERIFY( a.capacity() >= a.size() ); + QCOMPARE( a.size(), 10 ); + + QVERIFY( b.capacity() >= 16 ); + QCOMPARE( b.size(), 8 ); + + QVERIFY( c.capacity() >= 16 ); + QCOMPARE( c.size(), 10 ); + } + + a.clear(); + QCOMPARE( a.size(), 0 ); + + b_real.clear(); + QCOMPARE( b.size(), 0 ); + + QCOMPARE(MyBase::errorCount, 0); + QCOMPARE(MyBase::liveCount, 0); + + // All done + QTBUG10978_proceed = true; +} + +void tst_QVarLengthArray::QTBUG10978_realloc() +{ + QTBUG10978_test<MyBase>(); + QVERIFY(QTBUG10978_proceed); + + QTBUG10978_test<MyPrimitive>(); + QVERIFY(QTBUG10978_proceed); + + QTBUG10978_test<MyMovable>(); + QVERIFY(QTBUG10978_proceed); + + QTBUG10978_test<MyComplex>(); + QVERIFY(QTBUG10978_proceed); +} + QTEST_APPLESS_MAIN(tst_QVarLengthArray) #include "tst_qvarlengtharray.moc" |