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tst_QGraphicsLinearLayout: fix memleaks in itemAt() 

The old code used a data-driven test to check that itemAt(i), 0 ≤ i ≤
2, was returning non-nullptr. It re-created the widgets and the layout
for each data tag anew, leaking the widgets by the way.

Using data-driven test machinery here is overkill. Remove it and
create the widgets in a C array on the stack, so they're not leaked,
and iterate over them using range-for.

Also check not just for nullptr, but also that the pointer matches the
widgets we put into layout, at the position we put them in.

Amends the start of the public history.

Pick-to: 6.8 6.5 5.15
Change-Id: Ib808aa6756c6550a61a4768edfc5021f2f6ae3b3
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
(cherry picked from commit 159029b587)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This commit is contained in:
Marc Mutz 2025-03-27 18:45:00 +01:00 committed by Qt Cherry-pick Bot
parent c144326b2d
commit a961848c16
1 changed files with 7 additions and 13 deletions
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20
tests/auto/widgets/graphicsview/qgraphicslinearlayout/tst_qgraphicslinearlayout.cpp
View File

@ -34,7 +34,6 @@ private slots:
void insertStretch();
void invalidate_data();
void invalidate();
void itemAt_data();
void itemAt();
void itemAt_visualOrder();
void orientation_data();
@ -633,24 +632,19 @@ void tst_QGraphicsLinearLayout::invalidate()
delete widget;
}
void tst_QGraphicsLinearLayout::itemAt_data()
{
QTest::addColumn<int>("index");
QTest::newRow("0") << 0;
QTest::newRow("1") << 1;
QTest::newRow("2") << 2;
}
// QGraphicsLayoutItem* itemAt(int index) const public
void tst_QGraphicsLinearLayout::itemAt()
{
// see also the insertItem() etc tests
QFETCH(int, index);
SubQGraphicsLinearLayout layout;
for (int i = 0; i < 3; ++i)
layout.addItem(new QGraphicsWidget);
QVERIFY(layout.itemAt(index) != 0);
QGraphicsWidget widgets[3];
for (auto &w : widgets)
layout.addItem(&w);
int i = 0;
for (const auto &w : widgets)
QCOMPARE(layout.itemAt(i++), &w);
}
void tst_QGraphicsLinearLayout::itemAt_visualOrder()