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Test layout engine fundamentals

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Done with Jan Arve

Task-number: QTBUG-33104

Change-Id: I8319748536d448d1c37a26527ced53156d8c2f56
Reviewed-by: Jan Arve Sæther <jan-arve.saether@digia.com>
This commit is contained in:
Paul Olav Tvete 2013-08-27 13:29:48 +02:00 committed by The Qt Project
parent 3aa163491c
commit f3c019649b
1 changed files with 155 additions and 0 deletions
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155
tests/auto/widgets/kernel/qboxlayout/tst_qboxlayout.cpp
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@ -74,6 +74,9 @@ private slots:
void setGeometry();
void setStyleShouldChangeSpacing();
void testLayoutEngine_data();
void testLayoutEngine();
void taskQTBUG_7103_minMaxWidthNotRespected();
void taskQTBUG_27420_takeAtShouldUnparentLayout();
};
@ -325,5 +328,157 @@ void tst_QBoxLayout::taskQTBUG_27420_takeAtShouldUnparentLayout()
QVERIFY(!inner.isNull());
}
struct Descr
{
Descr(int min, int sh, int max = -1, bool exp= false, int _stretch = 0, bool _empty = false)
:minimumSize(min), sizeHint(sh), maximumSize(max < 0 ? QLAYOUTSIZE_MAX : max),
expanding(exp), stretch(_stretch), empty(_empty)
{}
int minimumSize;
int sizeHint;
int maximumSize;
bool expanding;
int stretch;
bool empty;
};
typedef QList<Descr> DescrList;
Q_DECLARE_METATYPE(DescrList);
typedef QList<int> SizeList;
typedef QList<int> PosList;
class LayoutItem : public QLayoutItem
{
public:
LayoutItem(const Descr &descr) :m_descr(descr) {}
QSize sizeHint() const { return QSize(m_descr.sizeHint, 100); }
QSize minimumSize() const { return QSize(m_descr.minimumSize, 0); }
QSize maximumSize() const { return QSize(m_descr.maximumSize, QLAYOUTSIZE_MAX); }
Qt::Orientations expandingDirections() const
{ return m_descr.expanding ? Qt::Horizontal : Qt::Orientations(0); }
void setGeometry(const QRect &r) { m_pos = r.x(); m_size = r.width();}
QRect geometry() const { return QRect(m_pos, 0, m_size, 100); }
bool isEmpty() const { return m_descr.empty; }
private:
Descr m_descr;
int m_pos;
int m_size;
};
void tst_QBoxLayout::testLayoutEngine_data()
{
// (int min, int sh, int max = -1, bool exp= false, int _stretch = 0, bool _empty = false)
QTest::addColumn<DescrList>("itemDescriptions");
QTest::addColumn<int>("size");
QTest::addColumn<int>("spacing");
QTest::addColumn<PosList>("expectedPositions");
QTest::addColumn<SizeList>("expectedSizes");
QTest::newRow("Just one")
<< (DescrList() << Descr(0, 100))
<< 200
<< 0
<< (PosList() << 0)
<< (SizeList() << 200);
QTest::newRow("Two non-exp")
<< (DescrList() << Descr(0, 100) << Descr(0,100))
<< 400
<< 0
<< (PosList() << 0 << 200)
<< (SizeList() << 200 << 200);
QTest::newRow("Exp + non-exp")
<< (DescrList() << Descr(0, 100, -1, true) << Descr(0,100))
<< 400
<< 0
<< (PosList() << 0 << 300)
<< (SizeList() << 300 << 100);
QTest::newRow("Stretch")
<< (DescrList() << Descr(0, 100, -1, false, 1) << Descr(0,100, -1, false, 2))
<< 300
<< 0
<< (PosList() << 0 << 100)
<< (SizeList() << 100 << 200);
QTest::newRow("Spacing")
<< (DescrList() << Descr(0, 100) << Descr(0,100))
<< 400
<< 10
<< (PosList() << 0 << 205)
<< (SizeList() << 195 << 195);
QTest::newRow("Less than minimum")
<< (DescrList() << Descr(100, 100, 100, false) << Descr(50, 100, 100, false))
<< 100
<< 0
<< (PosList() << 0 << 50)
<< (SizeList() << 50 << 50);
QTest::newRow("Less than sizehint")
<< (DescrList() << Descr(100, 200, 100, false) << Descr(50, 200, 100, false))
<< 200
<< 0
<< (PosList() << 0 << 100)
<< (SizeList() << 100 << 100);
QTest::newRow("Too much space")
<< (DescrList() << Descr(0, 100, 100, false) << Descr(0, 100, 100, false))
<< 500
<< 0
<< (PosList() << 100 << 300)
<< (SizeList() << 100 << 100);
QTest::newRow("Empty")
<< (DescrList() << Descr(0, 100, 100) << Descr(0,0,-1, false, 0, true) << Descr(0, 100, 100) )
<< 500
<< 0
<< (PosList() << 100 << 300 << 300)
<< (SizeList() << 100 << 0 << 100);
}
void tst_QBoxLayout::testLayoutEngine()
{
QFETCH(DescrList, itemDescriptions);
QFETCH(int, size);
QFETCH(int, spacing);
QFETCH(PosList, expectedPositions);
QFETCH(SizeList, expectedSizes);
QHBoxLayout box;
box.setSpacing(spacing);
int i;
for (i = 0; i < itemDescriptions.count(); ++i) {
Descr descr = itemDescriptions.at(i);
LayoutItem *li = new LayoutItem(descr);
box.addItem(li);
box.setStretch(i, descr.stretch);
}
box.setGeometry(QRect(0,0,size,100));
for (i = 0; i < expectedSizes.count(); ++i) {
int xSize = expectedSizes.at(i);
int xPos = expectedPositions.at(i);
QLayoutItem *item = box.itemAt(i);
QCOMPARE(item->geometry().width(), xSize);
QCOMPARE(item->geometry().x(), xPos);
}
}
QTEST_MAIN(tst_QBoxLayout)
#include "tst_qboxlayout.moc"