From 0459b572b32a09baa1d1eed0f803a2a525b35903 Mon Sep 17 00:00:00 2001
From: Allan Sandfeld Jensen <allan.jensen@qt.io>
Date: Fri, 16 Sep 2022 15:43:30 +0200
Subject: [PATCH] Fix flaky FP32x4 test

The composition implementation may act unexpectedly on Inf or NaN input
values. This change avoid those values, without changing the current
implementation.

Fixes: QTBUG-101236
Change-Id: I8e4ee67f53093b7f81e014b28d8a028ba2ddcc47
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
(cherry picked from commit 0e90bdbaa43b05a0c0711c78c749bb8379efa755)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 tests/auto/gui/painting/qpainter/tst_qpainter.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/auto/gui/painting/qpainter/tst_qpainter.cpp b/tests/auto/gui/painting/qpainter/tst_qpainter.cpp
index 041169c775d..1a677ad4452 100644
--- a/tests/auto/gui/painting/qpainter/tst_qpainter.cpp
+++ b/tests/auto/gui/painting/qpainter/tst_qpainter.cpp
@@ -5506,6 +5506,7 @@ void tst_QPainter::hdrColors()
     QCOMPARE(img.pixelColor(4, 4), color);
 
     QImage img2(10, 10, QImage::Format_RGBX32FPx4);
+    img2.fill(Qt::black); // fill to avoid random FP values like Inf which can break SourceOver composition
     {
         QPainter p(&img2);
         p.drawImage(0, 0, img);