--     -- define a screen with room for 2 lines of text

--     App.font{

--     App.font.init{

--     -- check that screen shows next 2 lines of text after hitting pagedown

--     App.check_screen_contents{
--       y0='ghi'
--       y15=''
--     }

--     App.screen.check(0, 'ghi')
--     App.screen.check(15, 'jkl')