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28 | |
29 | #include <qtest.h> |
30 | #include <private/qquicktimeline_p_p.h> |
31 | #include <limits> |
32 | |
33 | class tst_QQuickTimeLine : public QObject |
34 | { |
35 | Q_OBJECT |
36 | |
37 | private slots: |
38 | void overflow(); |
39 | }; |
40 | |
41 | void 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 | |
58 | QTEST_MAIN(tst_QQuickTimeLine) |
59 | |
60 | #include "tst_qquicktimeline.moc" |
61 | |