[ Version ( since = "3.10" ) ]
public void test_widget_wait_for_draw (Widget widget)
Enters the main loop and waits for
widget to be “drawn”.
In this context that means it waits for the frame clock of
widget to have run a full styling, layout and drawing cycle.
This function is intended to be used for syncing with actions that depend on
widget relayouting or on interaction with the display
the widget to wait for