Baseline tests: prefer a screen with a DPR of 1.0

Move the windows to a screen with a 1.0 DPR, if the primary screen has a
different ratio. This makes sure that we get reproducible runs also
locally, no matter where e.g. the mouse pointer is (which on macOS
defines which screen the window opens up).

Change-Id: Iab7708c4abc0c97486f00a44a4b0a4c2b9406a62
Reviewed-by: Eirik Aavitsland <[email protected]>

1 files changed, 19 insertions, 0 deletions

diff --git a/tests/baseline/shared/qwidgetbaselinetest.cpp b/tests/baseline/shared/qwidgetbaselinetest.cpp
index 32fd3eef9b7..d5f03984ca0 100644
--- a/tests/baseline/shared/qwidgetbaselinetest.cpp
+++ b/tests/baseline/shared/qwidgetbaselinetest.cpp
@@ -109,7 +109,26 @@ void QWidgetBaselineTest::cleanupTestCase()
 void QWidgetBaselineTest::makeVisible()
 {
     Q_ASSERT(window);
+
+    // prefer a screen with a 1.0 DPR
+    QScreen *preferredScreen = QGuiApplication::primaryScreen();
+    if (!qFuzzyCompare(QGuiApplication::primaryScreen()->devicePixelRatio(), 1.0)) {
+        for (const auto screen : QGuiApplication::screens()) {
+            if (qFuzzyCompare(screen->devicePixelRatio(), 1.0)) {
+                preferredScreen = screen;
+                break;
+            }
+        }
+    }
+
+    Q_ASSERT(preferredScreen);
+    const QRect preferredScreenRect = preferredScreen->availableGeometry();
+
+    background->setScreen(preferredScreen);
+    background->move(preferredScreenRect.topLeft());
     background->showMaximized();
+    window->setScreen(preferredScreen);
+    window->move(preferredScreenRect.topLeft());
     window->show();
     QApplicationPrivate::setActiveWindow(window);
     QVERIFY(QTest::qWaitForWindowActive(window));