Setting up the baseline tests, creating an appearance identifier,
and basic image-grabbing functionality doesn't need to be reinvented
for each test case that wants to use baseline testing of widget UIs.
As a drive-by, remove unneeded Qt 5 meta tags from .pri file.
Change-Id: I1562e1b377946305cac018e0f0f0175c2c07cd31
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Amends 2b2e7b2ac5, which rewrote the
rendering to remove the conflation of menu arrows and arrow icons, but
introduced double rendering of the arrow icons if only the border was
styled.
Add a baseline test for style sheets, with a test function for
QToolButton configured in various ways and styled with different style
sheets.
The new test case includes a Qt 5 build system so that we can compare Qt
5.15 with Qt 6.
Fixes: QTBUG-98286
Pick-to: 6.2 6.2.2
Change-Id: I09cdc829c1a7e7913df4c3768dbe44b6dba4778b
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
