function test_draw_wrapping_text()
  io.write('\ntest_draw_wrapping_text')
  App.screen.init{width=50, height=60}
  Lines = load_array{'abc', 'defgh', 'xyz'}
  Line_width = App.screen.width
  Cursor1 = {line=1, pos=1}
  Screen_top1 = {line=1, pos=1}
  Screen_bottom1 = {}
  Zoom = 1
  App.draw()
  local screen_top_margin = 15  -- pixels
  local line_height = 15  -- pixels
  local y = screen_top_margin
  App.screen.check(y, 'abc', 'F - test_draw_wrapping_text/screen:1')
  y = y + line_height
  App.screen.check(y, 'def', 'F - test_draw_wrapping_text/screen:2')
  y = y + line_height
  App.screen.check(y, 'gh', 'F - test_draw_wrapping_text/screen:3')
end
function test_edit_wrapping_text()
  io.write('\ntest_edit_wrapping_text')
  App.screen.init{width=50, height=60}
  Lines = load_array{'abc', 'def', 'xyz'}
  Line_width = App.screen.width
  Cursor1 = {line=2, pos=4}
  Screen_top1 = {line=1, pos=1}
  Screen_bottom1 = {}
  Zoom = 1
  App.run_after_textinput('g')
  App.run_after_textinput('h')
  App.run_after_textinput('i')
  App.run_after_textinput('j')
  App.run_after_textinput('k')
  App.run_after_textinput('l')
  local screen_top_margin = 15  -- pixels
  local line_height = 15  -- pixels
  local y = screen_top_margin
  App.screen.check(y, 'abc', 'F - test_edit_wrapping_text/screen:1')
  y = y + line_height
  App.screen.check(y, 'def', 'F - test_edit_wrapping_text/screen:2')
  y = y + line_height
  App.screen.check(y, 'ghij', 'F - test_edit_wrapping_text/screen:3')
end

function App.initialize(arg)
  love.keyboard.setTextInput(true)  -- bring up keyboard on touch screen
  love.keyboard.setKeyRepeat(true)
-- globals

-- run in both tests and a real run
function App.initialize_globals()

-- maximize window
love.window.setMode(0, 0)  -- maximize
App.screen.width, App.screen.height = love.window.getMode()
-- shrink slightly to account for window decoration
App.screen.width = App.screen.width-100
App.screen.height = App.screen.height-100
love.window.setMode(App.screen.width, App.screen.height)
--? App.screen.width = 120
--? App.screen.height = 200
--? love.window.setMode(App.screen.width, App.screen.height)

end  -- App.initialize_globals
function App.initialize(arg)
  love.keyboard.setTextInput(true)  -- bring up keyboard on touch screen
  love.keyboard.setKeyRepeat(true)
  -- maximize window
  love.window.setMode(0, 0)  -- maximize
  App.screen.width, App.screen.height = love.window.getMode()
  -- shrink slightly to account for window decoration
  App.screen.width = App.screen.width-100
  App.screen.height = App.screen.height-100
  love.window.setMode(App.screen.width, App.screen.height)
--?   App.screen.width = 120
--?   App.screen.height = 200
--?   love.window.setMode(App.screen.width, App.screen.height)

  local outfile = io.open(filename, 'w')

  local outfile = App.open_for_writing(filename)

  if App.initialize_globals then App.initialize_globals() end

  App.filesystem = {}
  if App.initialize_globals then App.initialize_globals() end

end
-- fake files
function App.open_for_writing(filename)
  App.filesystem[filename] = ''
  return {
    write = function(self, s)
              App.filesystem[filename] = App.filesystem[filename]..s
            end,
    close = function(self)
            end
  }

  App.filesystem = nil

  App.run_after_keychord = nil

  App.open_for_writing = function(filename) return io.open(filename, 'w') end