3 files changed, 51 insertions, 2 deletions
diff --git a/tests/auto/gui/image/qpixmap/tst_qpixmap.cpp b/tests/auto/gui/image/qpixmap/tst_qpixmap.cpp
index b9b61425da..531ec68fdc 100644
--- a/tests/auto/gui/image/qpixmap/tst_qpixmap.cpp
+++ b/tests/auto/gui/image/qpixmap/tst_qpixmap.cpp
@@ -168,6 +168,8 @@ private slots:
 
     void scaled_QTBUG19157();
     void detachOnLoad_QTBUG29639();
+
+    void copyOnNonAlignedBoundary();
 };
 
 static bool lenientCompare(const QPixmap &actual, const QPixmap &expected)
@@ -1526,5 +1528,13 @@ void tst_QPixmap::detachOnLoad_QTBUG29639()
     QVERIFY(a.toImage() != b.toImage());
 }
 
+void tst_QPixmap::copyOnNonAlignedBoundary()
+{
+    QImage img(8, 2, QImage::Format_RGB16);
+
+    QPixmap pm1 = QPixmap::fromImage(img, Qt::NoFormatConversion);
+    QPixmap pm2 = pm1.copy(QRect(5, 0, 3, 2)); // When copying second line: 2 bytes too many are read which might cause an access violation.
+}
+
 QTEST_MAIN(tst_QPixmap)
 #include "tst_qpixmap.moc"
diff --git a/tests/auto/gui/kernel/qclipboard/tst_qclipboard.cpp b/tests/auto/gui/kernel/qclipboard/tst_qclipboard.cpp
index 4470961f7b..89807f3747 100644
--- a/tests/auto/gui/kernel/qclipboard/tst_qclipboard.cpp
+++ b/tests/auto/gui/kernel/qclipboard/tst_qclipboard.cpp
@@ -208,11 +208,12 @@ static bool runHelper(const QString &program, const QStringList &arguments, QByt
     // Windows: Due to implementation changes, the event loop needs
     // to be spun since we ourselves also need to answer the
     // WM_DRAWCLIPBOARD message as we are in the chain of clipboard
-    // viewers.
+    // viewers. Check for running before waitForFinished() in case
+    // the process terminated while processEvents() was executed.
     bool running = true;
     for (int i = 0; i < 60 && running; ++i) {
         QGuiApplication::processEvents(QEventLoop::ExcludeUserInputEvents);
-        if (process.waitForFinished(500))
+        if (process.state() != QProcess::Running || process.waitForFinished(500))
             running = false;
     }
     if (running) {
diff --git a/tests/auto/gui/painting/qpainter/tst_qpainter.cpp b/tests/auto/gui/painting/qpainter/tst_qpainter.cpp
index 2e5f43807a..6c37f1fc27 100644
--- a/tests/auto/gui/painting/qpainter/tst_qpainter.cpp
+++ b/tests/auto/gui/painting/qpainter/tst_qpainter.cpp
@@ -277,6 +277,7 @@ private slots:
     void drawTextWithComplexBrush();
     void QTBUG26013_squareCapStroke();
     void QTBUG25153_drawLine();
+    void dashing_systemClip();
 
 private:
     void fillData();
@@ -4458,6 +4459,43 @@ void tst_QPainter::QTBUG25153_drawLine()
     }
 }
 
+static void dashing_systemClip_paint(QPainter *p)
+{
+    p->setPen(QPen(Qt::black, 1, Qt::DashLine, Qt::RoundCap, Qt::MiterJoin));
+    p->drawLine(8, 8, 42, 8);
+    p->drawLine(42, 8, 42, 42);
+    p->drawLine(42, 42, 8, 42);
+    p->drawLine(8, 42, 8, 8);
+}
+
+void tst_QPainter::dashing_systemClip()
+{
+    QImage image(50, 50, QImage::Format_RGB32);
+    image.fill(Qt::white);
+
+    QPainter p(&image);
+    dashing_systemClip_paint(&p);
+    p.end();
+
+    QImage old = image.copy();
+
+    image.paintEngine()->setSystemClip(QRect(10, 0, image.width() - 10, image.height()));
+
+    p.begin(&image);
+    dashing_systemClip_paint(&p);
+
+    // doing same paint operation again with different system clip should not change the image
+    QCOMPARE(old, image);
+
+    old = image;
+
+    p.setClipRect(QRect(20, 20, 30, 30));
+    dashing_systemClip_paint(&p);
+
+    // ditto for regular clips
+    QCOMPARE(old, image);
+}
+
 QTEST_MAIN(tst_QPainter)
 
 #include "tst_qpainter.moc"