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#include <QTest>
#include <QSignalSpy>
#include <QxtSharedPrivate>
#include <QDebug>
#include <QString>
int instances=0;
class MyPrivate;
class My
{
public:
My();
QString string() const;
void setString(QString a);
private:
QxtSharedPrivate<MyPrivate> d;
};
class MyPrivate
{
public:
MyPrivate()
{
instances++;
}
~MyPrivate()
{
instances--;
}
QString string() const
{
return m_string;
}
void setString(QString a)
{
m_string=a;
}
QString m_string;
};
My::My()
{
d=new MyPrivate;
}
QString My::string() const
{
return d().string();
}
void My::setString(QString a)
{
return d().setString(a);
}
class My2Private;
class My2
{
public:
My2();
QString string() const;
void setString(QString a);
void couseDetach();
private:
QxtSharedPrivate<My2Private> d;
};
class My2Private
{
public:
My2Private()
{
instances++;
}
virtual ~My2Private()
{
instances--;
}
My2Private(const My2Private & )
{
instances++;
m_string="foo";
}
QString string() const
{
return m_string;
}
void setString(QString a)
{
m_string=a;
}
QString m_string;
void couseDetach()
{
//nothing. but it's not const
}
};
My2::My2()
{
d=new My2Private;
}
QString My2::string() const
{
return d().string();
}
void My2::setString(QString a)
{
d().setString(a);
}
void My2::couseDetach()
{
d().couseDetach();
}
class QxtSharedPrivateTest : public QObject
{
Q_OBJECT
private slots:
void sanity()
{
{
QCOMPARE(instances,0);
My m1;
QCOMPARE(instances,1);
My m2;
QCOMPARE(instances,2);
}
QCOMPARE(instances,0);
}
void share()
{
My m1;
QCOMPARE(instances,1);
My m2(m1);
QCOMPARE(instances,1);
}
void keepShareOnConstCall()
{
QCOMPARE(instances,0);
My m1;
QCOMPARE(instances,1);
My m2(m1);
QCOMPARE(instances,1);
m1.string();
QCOMPARE(instances,1);
}
void copyOnWrite()
{
QCOMPARE(instances,0);
My2 m1;
QCOMPARE(instances,1);
My2 m2(m1);
QCOMPARE(instances,1);
m1.setString("bla");
QCOMPARE(instances,2);
}
void implicitCopyCtor()
{
QCOMPARE(instances,0);
My m1;
m1.setString("bla");
QCOMPARE(instances,1);
My m2(m1);
QCOMPARE(instances,1);
QVERIFY(m1.string()=="bla");
QCOMPARE(instances,1);
}
void explicitCopyCtor()
{
QCOMPARE(instances,0);
My2 m1;
m1.setString("bla");
QCOMPARE(instances,1);
My2 m2(m1);
QCOMPARE(instances,1);
m2.couseDetach();
QVERIFY(m2.string()=="foo");
QCOMPARE(instances,2);
}
};
int main(int argc, char ** argv)
{
QCoreApplication app(argc,argv);
QxtSharedPrivateTest test1;
return QTest::qExec(&test1,argc,argv);
}
#include "main.moc"
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