qt5base-lts/tests/auto/testlib/initmain/initmain.pro

CONFIG += testcase
SOURCES += tst_initmain.cpp
QT = core testlib

TARGET = tst_initmain
QTestLib: Introduce initMain() to run in main before qApp exists When running Qt autotests on a developer machine with a high resolution, failures occur due to either some widget becoming too small, some rounding fuzz appearing when Qt High DPI scaling is active, or some test taking screenshots failing to deal with device pixel ratios != 1 in the obtained pixmaps. It is not feasible to adapt all tests to pass on high resolution monitors in both modes (Qt High DPI scaling enabled/disabled). It should be possible to specify the High DPI setting per test. Previously, it was not possible to set the Qt High DPI scaling attributes since they must be applied before QApplication instantiation. Enable this by checking for the presence of a static void initMain() function on the test object and invoking it before QApplication instantiation. Prototypically use it in tst_qtimer and to turn off High DPI scaling for tst_QGL. [ChangeLog][QtTestLib] It is now possible to perform static initialization before QApplication instantiation by implementing a initMain() function in the test class. Change-Id: Idec0134b189710a14c41a451fa8445bc0c5b1cf3 Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io> Reviewed-by: Paul Wicking <paul.wicking@qt.io> Reviewed-by: Edward Welbourne <edward.welbourne@qt.io> 2019-07-30 08:16:53 +00:00			`CONFIG += testcase`
			`SOURCES += tst_initmain.cpp`
			`QT = core testlib`

			`TARGET = tst_initmain`