function test_select_all_text_then_mouse_press_outside_text()
  -- display a single line of text
  App.screen.init{width=75, height=80}
  Editor_state = edit.initialize_test_state()
  Editor_state.lines = load_array{'abc def'}
  Text.redraw_all(Editor_state)
  Editor_state.cursor1 = {line=1, pos=1}
  Editor_state.screen_top1 = {line=1, pos=1}
  Editor_state.screen_bottom1 = {}
  edit.draw(Editor_state)
  -- select all
  App.fake_key_press('lctrl')
  edit.run_after_keychord(Editor_state, 'C-a')
  App.fake_key_release('lctrl')
  edit.key_release(Editor_state, 'lctrl')
  -- selection
  check_eq(Editor_state.selection1.line, 1, 'selection:line')
  check_eq(Editor_state.selection1.pos, 1, 'selection:pos')
  check_eq(Editor_state.cursor1.line, 1, 'cursor:line')
  check_eq(Editor_state.cursor1.pos, 8, 'cursor:pos')
  -- part of a mouse click outside the selected line
  edit.run_after_mouse_press(Editor_state, 45, Margin_top + Editor_state.line_height + 10, --[[mouse button]] 1)
end

--? function test_select_all_text_then_mouse_press_outside_text()
--?   -- display a single line of text
--?   App.screen.init{width=75, height=80}
--?   Editor_state = edit.initialize_test_state()
--?   Editor_state.lines = load_array{'abc def'}
--?   Text.redraw_all(Editor_state)
--?   Editor_state.cursor1 = {line=1, pos=1}
--?   Editor_state.screen_top1 = {line=1, pos=1}
--?   Editor_state.screen_bottom1 = {}
--?   edit.draw(Editor_state)
--?   -- select all
--?   App.fake_key_press('lctrl')
--?   edit.run_after_keychord(Editor_state, 'C-a')
--?   App.fake_key_release('lctrl')
--?   edit.key_release(Editor_state, 'lctrl')
--?   -- selection
--?   check_eq(Editor_state.selection1.line, 1, 'selection:line')
--?   check_eq(Editor_state.selection1.pos, 1, 'selection:pos')
--?   check_eq(Editor_state.cursor1.line, 1, 'cursor:line')
--?   check_eq(Editor_state.cursor1.pos, 8, 'cursor:pos')
--?   -- part of a mouse click outside the selected line
--?   edit.run_after_mouse_press(Editor_state, 45, Margin_top + Editor_state.line_height + 10, --[[mouse button]] 1)
--? end

  if State.recent_mouse.time and State.recent_mouse.time > Current_time-0.1 then
    print_and_log(('text.mouse_pos: returning recent value %d,%d'):format(State.recent_mouse.line, State.recent_mouse.pos))
    return State.recent_mouse.line, State.recent_mouse.pos
  end
  State.recent_mouse.time = Current_time

  if line then
    State.recent_mouse.line = line
    State.recent_mouse.pos = pos
  end
  return State.recent_mouse.line, State.recent_mouse.pos

  return line, pos

    -- when selecting text, avoid recomputing some state on every single frame
    recent_mouse = {},

        State.recent_mouse = {time=Current_time, line=State.selection1.line, pos=State.selection1.pos}

          State.recent_mouse = {time=Current_time, line=State.cursor1.line, pos=State.cursor1.pos}