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#include <QtTest/QtTest>
#include "private/qautoptr_p.h"
using namespace QPatternist;
/*!
\class tst_QAutoPtr
\internal
\since 4.4
\brief Tests class QAutoPtr.
*/
class tst_QAutoPtr : public QObject
{
Q_OBJECT
private Q_SLOTS:
void defaultConstructor() const;
void copyConstructor() const;
void assignmentOperator() const;
void data() const;
void dataSignature() const;
void release() const;
void reset() const;
void onConstObject() const;
void dereferenceOperator() const;
void pointerOperator() const;
void pointerOperatorSignature() const;
void negationOperator() const;
void negationOperatorSignature() const;
void operatorBool() const;
void operatorBoolSignature() const;
/*
TODO:
- Test all the type hierarchy operators/constructors
- No code is at all calling AutoPtr& operator=(AutoPtrRef<T> ref) currently. Is it needed?
- No code is at all calling AutoPtrRef stuff. Is it needed?
- Equalness/unequalness operators?
- Test AutoPtr& operator=(AutoPtrRef<T> ref)
*/
};
void tst_QAutoPtr::defaultConstructor() const
{
/* Check that the members, one, is correctly initialized. */
AutoPtr<int> p;
QCOMPARE(p.data(), static_cast<int *>(0));
}
void tst_QAutoPtr::copyConstructor() const
{
/* Copy default constructed value. */
{
AutoPtr<int> p1;
AutoPtr<int> p2(p1);
QCOMPARE(p2.data(), static_cast<int *>(0));
}
/* Copy active value. */
{
AutoPtr<int> p1(new int(7));
AutoPtr<int> p2(p1);
QCOMPARE(*p2.data(), 7);
QCOMPARE(p1.data(), static_cast<int *>(0));
}
}
void tst_QAutoPtr::assignmentOperator() const
{
/* Assign to self, a default constructed value. */
{
AutoPtr<int> p1;
p1 = p1;
p1 = p1;
p1 = p1;
}
/* Assign to a default constructed value. */
{
AutoPtr<int> p1;
AutoPtr<int> p2;
p1 = p2;
p1 = p2;
p1 = p2;
}
/* Assign to an active value. */
{
AutoPtr<int> p1(new int(6));
AutoPtr<int> p2;
p1 = p2;
p1 = p2;
p1 = p2;
}
/* Assign from an active value. */
{
int *const ptr = new int(6);
AutoPtr<int> p1(ptr);
AutoPtr<int> p2;
p2 = p1;
QCOMPARE(p2.data(), ptr);
/* p1 should have reset. */
QCOMPARE(p1.data(), static_cast<int *>(0));
}
}
void tst_QAutoPtr::data() const
{
AutoPtr<int> p;
QCOMPARE(p.data(), static_cast<int *>(0));
}
void tst_QAutoPtr::dataSignature() const
{
const AutoPtr<int> p;
/* data() should be const. */
p.data();
}
void tst_QAutoPtr::release() const
{
/* Call release() on a default constructed value. */
{
AutoPtr<int> p;
QCOMPARE(p.release(), static_cast<int *>(0));
}
/* Call release() on an active value, it shouldn't delete. */
{
int value = 3;
AutoPtr<int> p(&value);
p.release();
}
}
void tst_QAutoPtr::reset() const
{
/* Call reset() on a default constructed value. */
{
AutoPtr<int> p;
p.reset();
}
/* Call reset() on an active value. */
{
AutoPtr<int> p(new int(3));
p.reset();
}
/* Call reset() with a value, on an active value. */
{
AutoPtr<int> p(new int(3));
int *const value = new int(9);
p.reset(value);
QCOMPARE(*p.data(), 9);
}
/* Call reset() with a value, on default constructed value. */
{
AutoPtr<int> p;
int *const value = new int(9);
p.reset(value);
QCOMPARE(*p.data(), 9);
}
}
void tst_QAutoPtr::onConstObject() const
{
/* Instansiate on a const object. */
AutoPtr<const int> p(new int(3));
p.reset();
p.data();
p.release();
p = p;
}
class AbstractClass
{
public:
virtual ~AbstractClass()
{
}
virtual int member() const = 0;
};
class SubClass : public AbstractClass
{
public:
virtual int member() const
{
return 5;
}
};
void tst_QAutoPtr::dereferenceOperator() const
{
/* Dereference a basic value. */
{
int value = 5;
AutoPtr<int> p(&value);
const int value2 = *p;
QCOMPARE(value2, 5);
p.release();
}
/* Dereference a pointer to an abstract class. This verifies
* that the operator returns a reference, when compiling
* with MSVC 2005. */
{
AutoPtr<AbstractClass> p(new SubClass());
QCOMPARE((*p).member(), 5);
}
}
class AnyForm
{
public:
int value;
};
void tst_QAutoPtr::pointerOperator() const
{
AnyForm af;
af.value = 5;
AutoPtr<AnyForm> p(&af);
QCOMPARE(p->value, 5);
p.release();
}
void tst_QAutoPtr::pointerOperatorSignature() const
{
/* The operator should be const. */
const AutoPtr<AnyForm> p(new AnyForm);
p->value = 5;
QVERIFY(p->value);
}
void tst_QAutoPtr::negationOperator() const
{
/* Invoke on default constructed value. */
{
AutoPtr<int> p;
QVERIFY(!p);
}
}
void tst_QAutoPtr::negationOperatorSignature() const
{
/* The signature should be const. */
const AutoPtr<int> p;
QVERIFY(!p);
/* The return value should be bool. */
QCOMPARE(!p, true);
}
void tst_QAutoPtr::operatorBool() const
{
/* Invoke on default constructed value. */
{
AutoPtr<int> p;
QCOMPARE(bool(p), false);
}
/* Invoke on active value. */
{
AutoPtr<int> p(new int(3));
QVERIFY(p);
}
}
void tst_QAutoPtr::operatorBoolSignature() const
{
/* The signature should be const. */
const AutoPtr<int> p;
QCOMPARE(bool(p), false);
}
QTEST_MAIN(tst_QAutoPtr)
#include "tst_qautoptr.moc"