tst_QStyle::drawItemPixmap test case fails on Symbian^3

The autotest assumes that created QPixmap are exactly same irregardless
how the pixmaps were created. However, there is no guarantee that
pixmaps that look the same (i.e. in this case green rectangles)
are "same". QPixmap is platform dependent and might have e.g.
optimized format in some of the platforms.

Task-number: QT-4805
Reviewed-by: Jani Hautakangas

1 files changed, 12 insertions, 0 deletions

diff --git a/tests/auto/qstyle/tst_qstyle.cpp b/tests/auto/qstyle/tst_qstyle.cpp
index ad5d7ff..5c319f0 100644
--- a/tests/auto/qstyle/tst_qstyle.cpp
+++ b/tests/auto/qstyle/tst_qstyle.cpp
@@ -272,6 +272,18 @@ void tst_QStyle::drawItemPixmap()
 
     QPixmap p(QString(SRCDIR) + "/task_25863.png", "PNG");
     QPixmap actualPix = QPixmap::grabWidget(testWidget);
+
+#ifdef Q_OS_SYMBIAN
+    // QPixmap cannot be assumed to be exactly same, unless it is created from exactly same content.
+    // In Symbian, pixmap format might get "optimized" depending on how QPixmap is created.
+    // Therefore, force the content to specific format and compare QImages.
+    // Then re-create the QPixmaps and compare those.
+    QImage i1 = p.toImage().convertToFormat(QImage::Format_ARGB32_Premultiplied);
+    p = QPixmap::fromImage(i1);
+    QImage i2 = actualPix.toImage().convertToFormat(QImage::Format_ARGB32_Premultiplied);
+    actualPix = QPixmap::fromImage(i2);
+    QVERIFY(i1 == i2);
+#endif
     QVERIFY(pixmapsAreEqual(&actualPix,&p));
     testWidget->hide();
 }