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28
29#include <qtest.h>
30#include <private/qquicktimeline_p_p.h>
31#include <limits>
32
33class tst_QQuickTimeLine : public QObject
34{
35 Q_OBJECT
36
37private slots:
38 void overflow();
39};
40
41void tst_QQuickTimeLine::overflow()
42{
43 // Test ensures that time value used in QQuickTimeLine::accel methods is always positive.
44 // On platforms where casting qreal value infinity to int yields a positive value this is
45 // always the case and the test would fail. Strictly speaking, the cast is undefined behavior.
46 if (static_cast<int>(qInf()) > 0)
47 QSKIP("Test is not applicable on this platform");
48
49 QQuickTimeLine timeline;
50 QQuickTimeLineValue value;
51
52 // overflow -> negative time -> assertion failure (QTBUG-35046)
53 QCOMPARE(timeline.accel(value, std::numeric_limits<qreal>::max(), 0.0001f), -1);
54 QCOMPARE(timeline.accel(value, std::numeric_limits<qreal>::max(), 0.0001f, 0.0001f), -1);
55 QCOMPARE(timeline.accelDistance(value, 0.0001f, std::numeric_limits<qreal>::max()), -1);
56}
57
58QTEST_MAIN(tst_QQuickTimeLine)
59
60#include "tst_qquicktimeline.moc"
61

source code of qtdeclarative/tests/auto/quick/qquicktimeline/tst_qquicktimeline.cpp