1 files changed, 51 insertions, 0 deletions
diff --git a/tests/auto/qpainterpath/tst_qpainterpath.cpp b/tests/auto/qpainterpath/tst_qpainterpath.cpp
index f60e782..8382edc 100644
--- a/tests/auto/qpainterpath/tst_qpainterpath.cpp
+++ b/tests/auto/qpainterpath/tst_qpainterpath.cpp
@@ -103,6 +103,8 @@ private slots:
 
     void testToFillPolygons();
 
+    void testNaNandInfinites();
+
     void closing();
 
     void operators_data();
@@ -1042,6 +1044,11 @@ void tst_QPainterPath::pointAtPercent_data()
     QRectF rect(241, 273, 185, 228);
     path.addEllipse(rect);
     QTest::newRow("Case 17") << path << qreal(1.0) << QPointF(rect.right(), qreal(0.5) * (rect.top() + rect.bottom()));
+
+    path = QPainterPath();
+    path.moveTo(100, 100);
+    QTest::newRow("Case 18") << path << qreal(0.0) << QPointF(100, 100);
+    QTest::newRow("Case 19") << path << qreal(1.0) << QPointF(100, 100);
 }
 
 void tst_QPainterPath::pointAtPercent()
@@ -1163,6 +1170,50 @@ void tst_QPainterPath::testToFillPolygons()
     QCOMPARE(polygons.first().count(QPointF(70, 50)), 0);
 }
 
+void tst_QPainterPath::testNaNandInfinites()
+{
+    QPainterPath path1;
+    QPainterPath path2 = path1;
+
+    QPointF p1 = QPointF(qSNaN(), 1);
+    QPointF p2 = QPointF(qQNaN(), 1);
+    QPointF p3 = QPointF(qQNaN(), 1);
+    QPointF pInf = QPointF(qInf(), 1);
+
+    // all these operations with NaN/Inf should be ignored
+    // can't test operator>> reliably, as we can't create a path with NaN to << later
+
+    path1.moveTo(p1);
+    path1.moveTo(qSNaN(), qQNaN());
+    path1.moveTo(pInf);
+
+    path1.lineTo(p1);
+    path1.lineTo(qSNaN(), qQNaN());
+    path1.lineTo(pInf);
+
+    path1.cubicTo(p1, p2, p3);
+    path1.cubicTo(p1, QPointF(1, 1), QPointF(2, 2));
+    path1.cubicTo(pInf, QPointF(10, 10), QPointF(5, 1));
+
+    path1.quadTo(p1, p2);
+    path1.quadTo(QPointF(1, 1), p3);
+    path1.quadTo(QPointF(1, 1), pInf);
+
+    path1.arcTo(QRectF(p1, p2), 5, 5);
+    path1.arcTo(QRectF(pInf, QPointF(1, 1)), 5, 5);
+
+    path1.addRect(QRectF(p1, p2));
+    path1.addRect(QRectF(pInf, QPointF(1, 1)));
+
+    path1.addEllipse(QRectF(p1, p2));
+    path1.addEllipse(QRectF(pInf, QPointF(1, 1)));
+
+    QCOMPARE(path1, path2);
+
+    path1.lineTo(QPointF(1, 1));
+    QVERIFY(path1 != path2);
+}
+
 void tst_QPainterPath::connectPathDuplicatePoint()
 {
     QPainterPath a;