tst_QMdiSubWindow::setSystemMenu(): Pass in High DPI/multi-screen setups

The window tends to grow to span screens in multi-screen setups; force it to
be on the primary screen by showing it maximized in that case.

Change-Id: I984ba7a4cd4abd1f862c59c8dca0e2275f44c724
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@qt.io>
 

1 files changed, 5 insertions, 1 deletions

diff --git a/tests/auto/widgets/widgets/qmdisubwindow/tst_qmdisubwindow.cpp b/tests/auto/widgets/widgets/qmdisubwindow/tst_qmdisubwindow.cpp
index f69b65bdbe..2b59a227b3 100644
--- a/tests/auto/widgets/widgets/qmdisubwindow/tst_qmdisubwindow.cpp
+++ b/tests/auto/widgets/widgets/qmdisubwindow/tst_qmdisubwindow.cpp
@@ -1014,7 +1014,11 @@ void tst_QMdiSubWindow::setSystemMenu()
     mdiArea->addSubWindow(subWindow);
     mainWindow.setCentralWidget(mdiArea);
     mainWindow.menuBar()->setNativeMenuBar(false);
-    mainWindow.show();
+    // Prevent the window from spanning screens
+    if (QGuiApplication::screens().size() > 1)
+        mainWindow.showMaximized();
+    else
+        mainWindow.show();
     QVERIFY(QTest::qWaitForWindowExposed(&mainWindow));
 
     QTRY_VERIFY(subWindow->isVisible());