edit.draw(Editor_state, Text_color)

  edit.run_after_text_input(Editor_state, 'a')

  edit.draw(Editor_state, Text_color)

  -- click on the other line

  Editor_state.selection1 = {}
  edit.draw(Editor_state)  -- populate line_cache.starty for each line Editor_state.line_cache
  edit.run_after_mouse_release(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)
  check_eq(Editor_state.cursor1.line, 1, 'F - test_click_moves_cursor/cursor:line')
  check_eq(Editor_state.cursor1.pos, 2, 'F - test_click_moves_cursor/cursor:pos')
  -- selection is empty to avoid perturbing future edits
  check_nil(Editor_state.selection1.line, 'F - test_click_moves_cursor/selection:line')
  check_nil(Editor_state.selection1.pos, 'F - test_click_moves_cursor/selection:pos')

  edit.run_after_mouse_click(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)
  -- cursor moves
  check_eq(Editor_state.cursor1.line, 1, 'F - test_click_with_mouse/cursor:line')
  check_nil(Editor_state.selection1.line, 'F - test_click_with_mouse/selection is empty to avoid perturbing future edits')

  edit.draw(Editor_state, Text_color)

  edit.run_after_text_input(Editor_state, 'g')

  edit.draw(Editor_state, Text_color)  -- populate line_cache.starty for each line Editor_state.line_cache

function test_move_cursor_using_mouse()
  io.write('\ntest_move_cursor_using_mouse')
  App.screen.init{width=50, height=60}
  Editor_state = edit.initialize_test_state()
  Editor_state.lines = load_array{'abc', 'def', 'xyz'}
  Text.redraw_all(Editor_state)
  Editor_state.cursor1 = {line=1, pos=1}
  Editor_state.screen_top1 = {line=1, pos=1}
  Editor_state.screen_bottom1 = {}
  Editor_state.selection1 = {}

  edit.run_after_mouse_release(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)
  check_eq(Editor_state.cursor1.line, 1, 'F - test_move_cursor_using_mouse/cursor:line')
  check_eq(Editor_state.cursor1.pos, 2, 'F - test_move_cursor_using_mouse/cursor:pos')
  check_nil(Editor_state.selection1.line, 'F - test_move_cursor_using_mouse/selection:line')
  check_nil(Editor_state.selection1.pos, 'F - test_move_cursor_using_mouse/selection:pos')
end

  edit.draw(Editor_state, Text_color)

  edit.run_after_text_input(Editor_state, 'g')

-- App.keypressed is defined in keychord.lua

  if on.keychord_pressed then on.keychord_pressed(chord, key) end
  return edit.keychord_press(Editor_state, chord, key)

  if on.keychord_press then on.keychord_press(chord, key) end

  if on.textinput then on.textinput(t) end
  return edit.text_input(Editor_state, t)

  if on.text_input then on.text_input(t) end

    if run.mouse_pressed then run.mouse_press(x,y, mouse_button) end
    if source.mouse_pressed then source.mouse_press(x,y, mouse_button) end

  if on.key_released then on.key_released(key, scancode, isrepeat) end
  return edit.key_release(Editor_state, key, scancode)

  if on.key_release then on.key_release(key, scancode, isrepeat) end