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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QTest>
#include <qcoreapplication.h>
#include <qmetaobject.h>
#include <qdebug.h>
#include <qboxlayout.h>
#include <qmenubar.h>
#include <qdialog.h>
#include <qsizegrip.h>
#include <qlabel.h>
#include <QtWidgets/QFrame>
#include <QtWidgets/QStyleFactory>
#include <QtWidgets/QSizePolicy>
#include <QtWidgets/QComboBox>
#include <QPushButton>
#include <QRadioButton>
#include <private/qlayoutengine_p.h>
#include <QtTest/private/qtesthelpers_p.h>
#include <QtCore/qscopeguard.h>
namespace {
class LayoutWithContent : public QGridLayout
{
public:
LayoutWithContent(QWidget *parentWdg) : QGridLayout(parentWdg)
{
QWidget *minMaxSizeWdg = new QWidget();
minMaxSizeWdg->setMinimumSize(40, 40);
minMaxSizeWdg->setMaximumSize(140, 140);
QLabel *label1 = new QLabel(QStringLiteral("This is a qt label 1"));
QLabel *label2 = new QLabel(QStringLiteral("This is a qt label 2"));
addWidget(minMaxSizeWdg, 0, 0);
label1->setMaximumHeight(100);
label2->setMaximumHeight(100);
label1->setMaximumWidth(100);
label2->setMaximumWidth(100);
addWidget(label1, 1, 0);
addWidget(label2, 0, 1);
}
void applySizeConstraint(SizeConstraint sc)
{
setSizeConstraint(sc);
activate();
}
void applyVerticalSizeConstraint(SizeConstraint sc)
{
setVerticalSizeConstraint(sc);
activate();
}
void applyHorizontalSizeConstraint(SizeConstraint sc)
{
setHorizontalSizeConstraint(sc);
activate();
}
void clearConstraintAndResize(QSize sz, Qt::Orientations o = Qt::Horizontal | Qt::Vertical)
{
if (o == (Qt::Horizontal | Qt::Vertical))
setSizeConstraint(QLayout::SizeConstraint::SetNoConstraint);
else if (o == Qt::Vertical)
setVerticalSizeConstraint(QLayout::SizeConstraint::SetNoConstraint);
else if (o == Qt::Horizontal)
setHorizontalSizeConstraint(QLayout::SizeConstraint::SetNoConstraint);
// Make sure we can always remove any set constraint as they are not removed by a change of the constraint.
parentWidget()->setMinimumSize(0, 0);
parentWidget()->setMaximumSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX);
parentWidget()->resize(sz);
activate();
}
};
}
using namespace QTestPrivate;
class tst_QLayout : public QObject
{
Q_OBJECT
public:
tst_QLayout();
virtual ~tst_QLayout();
private slots:
void cleanup() { QVERIFY(QApplication::topLevelWidgets().isEmpty()); }
void getSetCheck();
void geometry();
void smartMaxSize();
void setLayoutBugs();
void setContentsMargins();
void layoutItemRect();
void warnIfWrongParent();
void controlTypes();
void controlTypes2();
void adjustSizeShouldMakeSureLayoutIsActivated();
void testRetainSizeWhenHidden();
void removeWidget();
void sizeConstraints();
void checkVerticalSizeConstraint_data();
void checkVerticalSizeConstraint();
void checkHorizontalSizeConstraint_data();
void checkHorizontalSizeConstraint();
private:
void setupDataSizeConstraint();
};
tst_QLayout::tst_QLayout()
{
}
tst_QLayout::~tst_QLayout()
{
}
// Testing get/set functions
void tst_QLayout::getSetCheck()
{
QBoxLayout obj1(QBoxLayout::LeftToRight);
// QWidget * QLayout::menuBar()
// void QLayout::setMenuBar(QWidget *)
QMenuBar *var1 = new QMenuBar();
obj1.setMenuBar(var1);
QCOMPARE(static_cast<QWidget *>(var1), obj1.menuBar());
obj1.setMenuBar((QWidget *)0);
QCOMPARE((QWidget *)0, obj1.menuBar());
delete var1;
}
class SizeHinterFrame : public QFrame
{
public:
SizeHinterFrame(const QSize &sh, const QSize &msh = QSize())
: QFrame(0), sh(sh), msh(msh) {
setFrameStyle(QFrame::Box | QFrame::Plain);
}
void setSizeHint(const QSize &s) { sh = s; }
QSize sizeHint() const override { return sh; }
QSize minimumSizeHint() const override { return msh; }
private:
QSize sh;
QSize msh;
};
void tst_QLayout::geometry()
{
// For QWindowsStyle we know that QWidgetItem::geometry() and QWidget::geometry()
// should be the same.
QApplication::setStyle(QStyleFactory::create(QLatin1String("Windows")));
QWidget topLevel;
setFrameless(&topLevel);
QWidget w(&topLevel);
QVBoxLayout layout(&w);
SizeHinterFrame widget(QSize(100,100));
layout.addWidget(&widget);
QLayoutItem *item = layout.itemAt(0);
topLevel.show();
QApplication::processEvents();
QCOMPARE(item->geometry().size(), QSize(100,100));
widget.setMinimumSize(QSize(110,110));
QCOMPARE(item->geometry().size(), QSize(110,110));
widget.setMinimumSize(QSize(0,0));
widget.setMaximumSize(QSize(90,90));
widget.setSizeHint(QSize(100,100));
QCOMPARE(item->geometry().size(), QSize(90,90));
}
void tst_QLayout::smartMaxSize()
{
QList<int> expectedWidths;
QFile f(QFINDTESTDATA("baseline/smartmaxsize"));
QCOMPARE(f.open(QIODevice::ReadOnly | QIODevice::Text), true);
QTextStream stream(&f);
while(!stream.atEnd()) {
QString line = stream.readLine(200);
expectedWidths.append(line.section(QLatin1Char(' '), 6, -1, QString::SectionSkipEmpty).toInt());
}
f.close();
int sizeCombinations[] = { 0, 10, 20, QWIDGETSIZE_MAX};
QSizePolicy::Policy policies[] = { QSizePolicy::Fixed,
QSizePolicy::Minimum,
QSizePolicy::Maximum,
QSizePolicy::Preferred,
QSizePolicy::Expanding,
QSizePolicy::MinimumExpanding,
QSizePolicy::Ignored
};
Qt::Alignment alignments[] = { Qt::Alignment{},
Qt::AlignLeft,
Qt::AlignRight,
Qt::AlignHCenter
};
int expectedIndex = 0;
int regressionCount = 0;
for (size_t p = 0; p < sizeof(policies)/sizeof(QSizePolicy::Policy); ++p) {
QSizePolicy sizePolicy;
sizePolicy.setHorizontalPolicy(policies[p]);
for (size_t min = 0; min < sizeof(sizeCombinations)/sizeof(int); ++min) {
int minSize = sizeCombinations[min];
for (size_t max = 0; max < sizeof(sizeCombinations)/sizeof(int); ++max) {
int maxSize = sizeCombinations[max];
for (size_t sh = 0; sh < sizeof(sizeCombinations)/sizeof(int); ++sh) {
int sizeHint = sizeCombinations[sh];
for (size_t a = 0; a < sizeof(alignments)/sizeof(int); ++a) {
Qt::Alignment align = alignments[a];
QSize sz = qSmartMaxSize(QSize(sizeHint, 1), QSize(minSize, 1), QSize(maxSize, 1), sizePolicy, align);
int width = sz.width();
int expectedWidth = expectedWidths[expectedIndex];
if (width != expectedWidth) {
qDebug() << "error at index" << expectedIndex << ':' << sizePolicy.horizontalPolicy() << align << minSize << sizeHint << maxSize << width;
++regressionCount;
}
++expectedIndex;
}
}
}
}
}
QCOMPARE(regressionCount, 0);
}
void tst_QLayout::setLayoutBugs()
{
QWidget widget(0);
QHBoxLayout *hBoxLayout = new QHBoxLayout(&widget);
for(int i = 0; i < 6; ++i) {
QPushButton *pushButton = new QPushButton("Press me!", &widget);
hBoxLayout->addWidget(pushButton);
}
widget.setLayout(hBoxLayout);
QCOMPARE(widget.layout(), hBoxLayout);
QWidget containerWidget(0);
containerWidget.setLayout(widget.layout());
QVERIFY(!widget.layout());
QCOMPARE(containerWidget.layout(), hBoxLayout);
}
class MyLayout : public QLayout
{
public:
MyLayout() : invalidated(false) {}
virtual void invalidate() override {invalidated = true;}
bool invalidated;
QSize sizeHint() const override {return QSize();}
void addItem(QLayoutItem*) override {}
QLayoutItem* itemAt(int) const override {return 0;}
QLayoutItem* takeAt(int) override {return 0;}
int count() const override {return 0;}
};
void tst_QLayout::setContentsMargins()
{
MyLayout layout;
layout.invalidated = false;
int left, top, right, bottom;
layout.setContentsMargins(52, 53, 54, 55);
QVERIFY(layout.invalidated);
layout.invalidated = false;
layout.getContentsMargins(&left, &top, &right, &bottom);
QCOMPARE(left, 52);
QCOMPARE(top, 53);
QCOMPARE(right, 54);
QCOMPARE(bottom, 55);
layout.setContentsMargins(52, 53, 54, 55);
QVERIFY(!layout.invalidated);
MyLayout otherLayout; // with default contents margins
QVERIFY(layout.contentsMargins() != otherLayout.contentsMargins());
layout.unsetContentsMargins();
QCOMPARE(layout.contentsMargins(), otherLayout.contentsMargins());
layout.setContentsMargins(10, 20, 30, 40);
QVERIFY(layout.contentsMargins() != otherLayout.contentsMargins());
int contentsMarginsPropertyIndex = QLayout::staticMetaObject.indexOfProperty("contentsMargins");
QVERIFY(contentsMarginsPropertyIndex >= 0);
QMetaProperty contentsMarginsProperty = QLayout::staticMetaObject.property(contentsMarginsPropertyIndex);
QVERIFY(contentsMarginsProperty.isValid());
QVERIFY(contentsMarginsProperty.isResettable());
QVERIFY(contentsMarginsProperty.reset(&layout));
QCOMPARE(layout.contentsMargins(), otherLayout.contentsMargins());
}
class EventReceiver : public QObject
{
public:
bool eventFilter(QObject *watched, QEvent *event) override
{
if (event->type() == QEvent::Show) {
geom = static_cast<QWidget*>(watched)->geometry();
}
return false;
}
QRect geom;
};
void tst_QLayout::layoutItemRect()
{
#ifdef Q_OS_MACOS
if (QApplication::style()->inherits("QMacStyle")) {
QWidget *window = new QWidget;
QRadioButton *radio = new QRadioButton(window);
QWidgetItem item(radio);
EventReceiver eventReceiver;
radio->installEventFilter(&eventReceiver);
radio->show();
QApplication::processEvents();
QApplication::processEvents();
QSize s = item.sizeHint();
item.setAlignment(Qt::AlignVCenter);
item.setGeometry(QRect(QPoint(0, 0), s));
QCOMPARE(radio->geometry().size(), radio->sizeHint());
delete radio;
}
#endif
}
void tst_QLayout::warnIfWrongParent()
{
QWidget root;
QHBoxLayout lay;
lay.setParent(&root);
QTest::ignoreMessage(QtWarningMsg, "QLayout::parentWidget: A layout can only have another layout as a parent.");
QCOMPARE(lay.parentWidget(), nullptr);
}
void tst_QLayout::controlTypes()
{
QVBoxLayout layout;
QCOMPARE(layout.controlTypes(), QSizePolicy::DefaultType);
QSizePolicy p;
QCOMPARE(p.controlType(),QSizePolicy::DefaultType);
}
void tst_QLayout::controlTypes2()
{
QWidget main;
QVBoxLayout *const layout = new QVBoxLayout(&main);
layout->setContentsMargins(0, 0, 0, 0);
QComboBox *combo = new QComboBox(&main);
layout->addWidget(combo);
QCOMPARE(layout->controlTypes(), QSizePolicy::ComboBox);
}
void tst_QLayout::adjustSizeShouldMakeSureLayoutIsActivated()
{
QWidget main;
QVBoxLayout *const layout = new QVBoxLayout(&main);
layout->setContentsMargins(0, 0, 0, 0);
SizeHinterFrame *frame = new SizeHinterFrame(QSize(200, 10), QSize(200, 8));
frame->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
layout->addWidget(frame);
SizeHinterFrame *frame2 = new SizeHinterFrame(QSize(200, 10), QSize(200, 8));
frame2->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
layout->addWidget(frame2);
main.show();
frame2->hide();
main.adjustSize();
QCOMPARE(main.size(), QSize(200, 10));
}
void tst_QLayout::testRetainSizeWhenHidden()
{
#ifdef Q_OS_ANDROID
QSKIP("Test does not work on platforms which default to showMaximized()");
#endif
QWidget widget;
QBoxLayout layout(QBoxLayout::TopToBottom, &widget);
QLabel *label1 = new QLabel("label1 text", &widget);
layout.addWidget(label1);
QLabel *label2 = new QLabel("label2 text", &widget);
layout.addWidget(label2);
widget.show();
QVERIFY(QTest::qWaitForWindowExposed(&widget));
int normalHeight = widget.height();
// a. Verify that a removed visible will mean lesser size after adjust
label1->hide();
widget.adjustSize();
int heightWithoutLabel1 = widget.height();
QVERIFY(heightWithoutLabel1 < normalHeight);
// b restore with verify that the size is the same
label1->show();
QCOMPARE(widget.sizeHint().height(), normalHeight);
// c verify that a policy with retainSizeWhenHidden is respected
QSizePolicy sp_remove = label1->sizePolicy();
QSizePolicy sp_retain = label1->sizePolicy();
sp_retain.setRetainSizeWhenHidden(true);
label1->setSizePolicy(sp_retain);
label1->hide();
QCOMPARE(widget.sizeHint().height(), normalHeight);
// d check that changing the policy to not wanting size will result in lesser size
label1->setSizePolicy(sp_remove);
QCOMPARE(widget.sizeHint().height(), heightWithoutLabel1);
// e verify that changing back the hidden widget to want the hidden size will ensure that it gets more size
label1->setSizePolicy(sp_retain);
QCOMPARE(widget.sizeHint().height(), normalHeight);
}
void tst_QLayout::removeWidget()
{
QHBoxLayout layout;
QCOMPARE(layout.count(), 0);
std::unique_ptr<QWidget> w(new QWidget);
layout.addWidget(w.get());
QCOMPARE(layout.count(), 1);
layout.removeWidget(w.get());
QCOMPARE(layout.count(), 0);
QPointer<QLayout> childLayout(new QHBoxLayout);
layout.addLayout(childLayout);
QCOMPARE(layout.count(), 1);
layout.removeWidget(nullptr);
QCOMPARE(layout.count(), 1);
layout.removeItem(childLayout);
const auto reaper = qScopeGuard([&] { delete childLayout; });
QCOMPARE(layout.count(), 0);
QVERIFY(!childLayout.isNull());
// Test inactive layout consumes ChildRemoved event (QTBUG-124151)
layout.addWidget(w.get());
layout.setEnabled(false);
w.reset();
layout.setEnabled(true);
}
void tst_QLayout::sizeConstraints()
{
QWidget windowWdg;
auto *layout = new LayoutWithContent(&windowWdg);
// Check fixed size
layout->applySizeConstraint(QLayout::SizeConstraint::SetFixedSize);
QCOMPARE(windowWdg.size(), layout->totalSizeHint());
layout->clearConstraintAndResize(QSize(100, 100));
const QSize verySmall(5, 5);
const QSize veryBig(1500, 1500);
// Check minimumSize changes
layout->clearConstraintAndResize(verySmall);
layout->applySizeConstraint(QLayout::SizeConstraint::SetMinimumSize);
QCOMPARE(windowWdg.size(), layout->minimumSize());
// Check no-max on minimumSize changes
layout->clearConstraintAndResize(veryBig);
layout->applySizeConstraint(QLayout::SizeConstraint::SetMinimumSize);
QCOMPARE(windowWdg.size(), veryBig);
// Check maximumSize
layout->clearConstraintAndResize(veryBig);
layout->applySizeConstraint(QLayout::SizeConstraint::SetMaximumSize);
QCOMPARE(windowWdg.size(), layout->maximumSize());
// Check no-max on minimumSize changes
layout->clearConstraintAndResize(verySmall);
layout->applySizeConstraint(QLayout::SizeConstraint::SetMaximumSize);
QCOMPARE(windowWdg.size(), verySmall);
// Check min on MinMax
layout->clearConstraintAndResize(verySmall);
layout->applySizeConstraint(QLayout::SizeConstraint::SetMinAndMaxSize);
QCOMPARE(windowWdg.size(), layout->minimumSize());
// Check max on MinMax
layout->clearConstraintAndResize(veryBig);
layout->applySizeConstraint(QLayout::SizeConstraint::SetMinAndMaxSize);
QCOMPARE(windowWdg.size(), layout->maximumSize());
// Default size constaint with window
layout->clearConstraintAndResize(verySmall);
layout->applySizeConstraint(QLayout::SizeConstraint::SetDefaultConstraint);
QCOMPARE(windowWdg.size(), layout->totalMinimumSize());
// Default size constaint without window.
// It can appear weird that the default constraint removes earlier constraints in
// non-window mode when nothing similar happens for other constraints.
// So this part could *maybe* be a subject for a change.
// However, we need to be extremely careful as about every widget application
// uses layouts.
QWidget windowWidget;
QHBoxLayout *topLayout = new QHBoxLayout(&windowWidget);
QWidget *innerWidget = new QWidget();
topLayout->addWidget(innerWidget);
auto *layout2 = new LayoutWithContent(innerWidget);
// make sure we set a minimumSize (that shouldn't be explicit) here.
layout2->applySizeConstraint(QLayout::SizeConstraint::SetMinimumSize);
QCOMPARE(innerWidget->minimumSize(), layout2->totalMinimumSize());
// Only set here as we actually like to keep the size we had from minimumSize
layout2->setSizeConstraint(QLayout::SizeConstraint::SetDefaultConstraint);
QCOMPARE(innerWidget->minimumSize(), layout2->totalMinimumSize());
layout2->activate();
QCOMPARE(innerWidget->minimumSize(), QSize(0, 0));
}
void tst_QLayout::setupDataSizeConstraint()
{
QTest::addColumn<QLayout::SizeConstraint>("constraint");
const auto constraints = {
QLayout::SetFixedSize,
QLayout::SetMinimumSize,
QLayout::SetMaximumSize,
QLayout::SetMinAndMaxSize,
QLayout::SetDefaultConstraint,
QLayout::SetNoConstraint
};
for (auto c : constraints) {
const QString desc = QLatin1String("Constraint_") + QTest::toString(c);
QTest::addRow("%s", qPrintable(desc)) << c;
}
}
void tst_QLayout::checkVerticalSizeConstraint_data()
{
setupDataSizeConstraint();
}
void tst_QLayout::checkVerticalSizeConstraint()
{
QFETCH(QLayout::SizeConstraint, constraint);
QWidget windowWdg;
auto *layout = new LayoutWithContent(&windowWdg);
layout->setHorizontalSizeConstraint(constraint);
// Check fixed size
layout->applyVerticalSizeConstraint(QLayout::SetFixedSize);
QCOMPARE(windowWdg.height(), layout->totalSizeHint().height());
layout->clearConstraintAndResize(QSize(100, 100), Qt::Vertical);
const QSize verySmall(5, 5);
const QSize veryBig(1500, 1500);
layout->clearConstraintAndResize(verySmall, Qt::Vertical);
layout->applyVerticalSizeConstraint(QLayout::SetMinimumSize);
QCOMPARE(windowWdg.size().height(), layout->minimumSize().height());
layout->clearConstraintAndResize(veryBig, Qt::Vertical);
layout->applyVerticalSizeConstraint(QLayout::SetMinimumSize);
QCOMPARE(windowWdg.size().height(), veryBig.height());
layout->clearConstraintAndResize(veryBig, Qt::Vertical);
layout->applyVerticalSizeConstraint(QLayout::SetMaximumSize);
QCOMPARE(windowWdg.size().height(), layout->maximumSize().height());
layout->clearConstraintAndResize(verySmall, Qt::Vertical);
layout->applyVerticalSizeConstraint(QLayout::SetMaximumSize);
QCOMPARE(windowWdg.size().height(), verySmall.height());
layout->clearConstraintAndResize(verySmall, Qt::Vertical);
layout->applyVerticalSizeConstraint(QLayout::SetMinAndMaxSize);
QCOMPARE(windowWdg.size().height(), layout->minimumSize().height());
layout->clearConstraintAndResize(veryBig, Qt::Vertical);
layout->applyVerticalSizeConstraint(QLayout::SetMinAndMaxSize);
QCOMPARE(windowWdg.size().height(), layout->maximumSize().height());
layout->clearConstraintAndResize(verySmall, Qt::Vertical);
layout->applyVerticalSizeConstraint(QLayout::SetDefaultConstraint);
QCOMPARE(windowWdg.size().height(), layout->totalMinimumSize().height());
// Inner widget check
QWidget windowWidget;
QHBoxLayout *topLayout = new QHBoxLayout(&windowWidget);
QWidget *innerWidget = new QWidget();
topLayout->addWidget(innerWidget);
auto *layout2 = new LayoutWithContent(innerWidget);
layout2->applyVerticalSizeConstraint(QLayout::SetMinimumSize);
QCOMPARE(innerWidget->minimumSize().height(), layout2->totalMinimumSize().height());
layout2->setVerticalSizeConstraint(QLayout::SetDefaultConstraint);
QCOMPARE(innerWidget->minimumSize().height(), layout2->totalMinimumSize().height());
layout2->activate();
QCOMPARE(innerWidget->minimumSize().height(), 0);
}
void tst_QLayout::checkHorizontalSizeConstraint_data()
{
setupDataSizeConstraint();
}
void tst_QLayout::checkHorizontalSizeConstraint()
{
QFETCH(QLayout::SizeConstraint, constraint);
QWidget windowWdg;
auto *layout = new LayoutWithContent(&windowWdg);
layout->setVerticalSizeConstraint(constraint);
// Fixed size
layout->applyHorizontalSizeConstraint(QLayout::SetFixedSize);
QCOMPARE(windowWdg.width(), layout->totalSizeHint().width());
layout->clearConstraintAndResize(QSize(100, 100), Qt::Horizontal);
const QSize verySmall(5, 5);
const QSize veryBig(1500, 1500);
// Minimum size
layout->clearConstraintAndResize(verySmall, Qt::Horizontal);
layout->applyHorizontalSizeConstraint(QLayout::SetMinimumSize);
QCOMPARE(windowWdg.size().width(), layout->minimumSize().width());
layout->clearConstraintAndResize(veryBig, Qt::Horizontal);
layout->applyHorizontalSizeConstraint(QLayout::SetMinimumSize);
QCOMPARE(windowWdg.size().width(), veryBig.width());
// Maximum size
layout->clearConstraintAndResize(veryBig, Qt::Horizontal);
layout->applyHorizontalSizeConstraint(QLayout::SetMaximumSize);
QCOMPARE(windowWdg.size().width(), layout->maximumSize().width());
layout->clearConstraintAndResize(verySmall, Qt::Horizontal);
layout->applyHorizontalSizeConstraint(QLayout::SetMaximumSize);
QCOMPARE(windowWdg.size().width(), verySmall.width());
// Min and Max
layout->clearConstraintAndResize(verySmall, Qt::Horizontal);
layout->applyHorizontalSizeConstraint(QLayout::SetMinAndMaxSize);
QCOMPARE(windowWdg.size().width(), layout->minimumSize().width());
layout->clearConstraintAndResize(veryBig, Qt::Horizontal);
layout->applyHorizontalSizeConstraint(QLayout::SetMinAndMaxSize);
QCOMPARE(windowWdg.size().width(), layout->maximumSize().width());
// Default constraint
layout->clearConstraintAndResize(verySmall, Qt::Horizontal);
layout->applyHorizontalSizeConstraint(QLayout::SetDefaultConstraint);
QCOMPARE(windowWdg.size().width(), layout->totalMinimumSize().width());
// Final innerWidget check
QWidget windowWidget;
QHBoxLayout *topLayout = new QHBoxLayout(&windowWidget);
QWidget *innerWidget = new QWidget();
topLayout->addWidget(innerWidget);
auto *layout2 = new LayoutWithContent(innerWidget);
layout2->applyHorizontalSizeConstraint(QLayout::SetMinimumSize);
QCOMPARE(innerWidget->minimumSize().width(), layout2->totalMinimumSize().width());
layout2->setHorizontalSizeConstraint(QLayout::SetDefaultConstraint);
QCOMPARE(innerWidget->minimumSize().width(), layout2->totalMinimumSize().width());
layout2->activate();
QCOMPARE(innerWidget->minimumSize().width(), 0);
}
QTEST_MAIN(tst_QLayout)
#include "tst_qlayout.moc"