There should be overloads that take a QKeySequence.

If you want to write code that e.g. tests redo() (which has different keys on different platforms) you now have to do stuff like this:

int val = QKeySequence(QKeySequence::Redo)[0];
Qt::KeyboardModifiers mods = (Qt::KeyboardModifiers)(val & Qt::KeyboardModifierMask);
QTest::keyClick(widget, val & ~mods, mods);