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28
29#include <QtGui/QRasterWindow>
30#include <QtTest/QtTest>
31#include <QtGui/QPainter>
32
33class tst_QRasterWindow : public QObject
34{
35 Q_OBJECT
36
37private slots:
38 void create();
39 void basic();
40};
41
42void tst_QRasterWindow::create()
43{
44 QRasterWindow w;
45
46 w.resize(w: 640, h: 480);
47 w.show();
48
49 QVERIFY(QTest::qWaitForWindowExposed(&w));
50}
51
52class PainterWindow : public QRasterWindow
53{
54public:
55 void reset() { paintCount = 0; }
56
57 void paintEvent(QPaintEvent*) override {
58 ++paintCount;
59 QPainter p(this);
60 p.fillRect(r: QRect(0, 0, 100, 100), c: Qt::blue);
61 p.end();
62 }
63
64 int paintCount;
65};
66
67void tst_QRasterWindow::basic()
68{
69 PainterWindow w;
70 w.reset();
71 w.resize(w: 400, h: 400);
72 w.show();
73 QVERIFY(QTest::qWaitForWindowExposed(&w));;
74
75 QVERIFY(w.paintCount >= 1);
76
77 w.reset();
78 w.update();
79 QTRY_VERIFY(w.paintCount >= 1);
80}
81
82#include <tst_qrasterwindow.moc>
83
84QTEST_MAIN(tst_QRasterWindow)
85

source code of qtbase/tests/auto/gui/kernel/qrasterwindow/tst_qrasterwindow.cpp