-- major tests for text editing flows
function test_initial_state()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{}
Text.redraw_all(Editor_state)
edit.draw(Editor_state)
check_eq(#Editor_state.lines, 1, '#lines')
check_eq(Editor_state.cursor1.line, 1, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 1, 'cursor:pos')
check_eq(Editor_state.screen_top1.line, 1, 'screen_top:line')
check_eq(Editor_state.screen_top1.pos, 1, 'screen_top:pos')
end
function test_click_to_create_drawing()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{}
Text.redraw_all(Editor_state)
edit.draw(Editor_state)
edit.run_after_mouse_click(Editor_state, 8,Editor_state.top+8, 1)
-- cursor skips drawing to always remain on text
check_eq(#Editor_state.lines, 2, '#lines')
check_eq(Editor_state.cursor1.line, 2, 'cursor')
end
function test_backspace_to_delete_drawing()
-- display a drawing followed by a line of text (you shouldn't ever have a drawing right at the end)
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'```lines', '```', ''}
Text.redraw_all(Editor_state)
-- cursor is on text as always (outside tests this will get initialized correctly)
Editor_state.cursor1.line = 2
-- backspacing deletes the drawing
edit.run_after_keychord(Editor_state, 'backspace')
check_eq(#Editor_state.lines, 1, '#lines')
check_eq(Editor_state.cursor1.line, 1, 'cursor')
end
function test_backspace_from_start_of_final_line()
-- display final line of text with cursor at start of it
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def'}
Editor_state.screen_top1 = {line=2, pos=1}
Editor_state.cursor1 = {line=2, pos=1}
Text.redraw_all(Editor_state)
-- backspace scrolls up
edit.run_after_keychord(Editor_state, 'backspace')
check_eq(#Editor_state.lines, 1, '#lines')
check_eq(Editor_state.cursor1.line, 1, 'cursor')
check_eq(Editor_state.screen_top1.line, 1, 'screen_top')
end
function test_insert_first_character()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{}
Text.redraw_all(Editor_state)
edit.draw(Editor_state)
edit.run_after_text_input(Editor_state, 'a')
local y = Editor_state.top
App.screen.check(y, 'a', 'screen:1')
end
function test_press_ctrl()
-- press ctrl while the cursor is on text
App.screen.init{width=50, height=80}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{''}
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.run_after_keychord(Editor_state, 'C-m')
end
function test_move_left()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'a'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=2}
edit.draw(Editor_state)
edit.run_after_keychord(Editor_state, 'left')
check_eq(Editor_state.cursor1.pos, 1, 'check')
end
function test_move_right()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'a'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=1}
edit.draw(Editor_state)
edit.run_after_keychord(Editor_state, 'right')
check_eq(Editor_state.cursor1.pos, 2, 'check')
end
function test_move_left_to_previous_line()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=2, pos=1}
edit.draw(Editor_state)
edit.run_after_keychord(Editor_state, 'left')
check_eq(Editor_state.cursor1.line, 1, 'line')
check_eq(Editor_state.cursor1.pos, 4, 'pos') -- past end of line
end
function test_move_right_to_next_line()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=4} -- past end of line
edit.draw(Editor_state)
edit.run_after_keychord(Editor_state, 'right')
check_eq(Editor_state.cursor1.line, 2, 'line')
check_eq(Editor_state.cursor1.pos, 1, 'pos')
end
function test_move_to_start_of_word()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=3}
edit.draw(Editor_state)
edit.run_after_keychord(Editor_state, 'M-left')
check_eq(Editor_state.cursor1.pos, 1, 'check')
end
function test_move_to_start_of_previous_word()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc def'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=4} -- at the space between words
edit.draw(Editor_state)
edit.run_after_keychord(Editor_state, 'M-left')
check_eq(Editor_state.cursor1.pos, 1, 'check')
end
function test_skip_to_previous_word()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc def'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=5} -- at the start of second word
edit.draw(Editor_state)
edit.run_after_keychord(Editor_state, 'M-left')
check_eq(Editor_state.cursor1.pos, 1, 'check')
end
function test_skip_past_tab_to_previous_word()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc def\tghi'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=10} -- within third word
edit.draw(Editor_state)
edit.run_after_keychord(Editor_state, 'M-left')
check_eq(Editor_state.cursor1.pos, 9, 'check')
end
function test_skip_multiple_spaces_to_previous_word()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc def'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=6} -- at the start of second word
edit.draw(Editor_state)
edit.run_after_keychord(Editor_state, 'M-left')
check_eq(Editor_state.cursor1.pos, 1, 'check')
end
function test_move_to_start_of_word_on_previous_line()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc def', 'ghi'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=2, pos=1}
edit.draw(Editor_state)
edit.run_after_keychord(Editor_state, 'M-left')
check_eq(Editor_state.cursor1.line, 1, 'line')
check_eq(Editor_state.cursor1.pos, 5, 'pos')
end
function test_move_past_end_of_word()
App.screen.init{width=120, height=60}
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}
edit.draw(Editor_state)
edit.run_after_keychord(Editor_state, 'M-right')
check_eq(Editor_state.cursor1.pos, 4, 'check')
end
function test_skip_to_next_word()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc def'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=4} -- at the space between words
edit.draw(Editor_state)
edit.run_after_keychord(Editor_state, 'M-right')
check_eq(Editor_state.cursor1.pos, 8, 'check')
end
function test_skip_past_tab_to_next_word()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc\tdef'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=1} -- at the space between words
edit.draw(Editor_state)
edit.run_after_keychord(Editor_state, 'M-right')
check_eq(Editor_state.cursor1.pos, 4, 'check')
end
function test_skip_multiple_spaces_to_next_word()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc def'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=4} -- at the start of second word
edit.draw(Editor_state)
edit.run_after_keychord(Editor_state, 'M-right')
check_eq(Editor_state.cursor1.pos, 9, 'check')
end
function test_move_past_end_of_word_on_next_line()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc def', 'ghi'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=8}
edit.draw(Editor_state)
edit.run_after_keychord(Editor_state, 'M-right')
check_eq(Editor_state.cursor1.line, 2, 'line')
check_eq(Editor_state.cursor1.pos, 4, 'pos')
end
function test_click_moves_cursor()
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.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, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 2, 'cursor:pos')
-- selection is empty to avoid perturbing future edits
check_nil(Editor_state.selection1.line, 'selection:line')
check_nil(Editor_state.selection1.pos, 'selection:pos')
end
function test_click_to_left_of_line()
-- display a line with the cursor in the middle
App.screen.init{width=50, height=80}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=3}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
-- click to the left of the line
edit.draw(Editor_state)
edit.run_after_mouse_click(Editor_state, Editor_state.left-4,Editor_state.top+5, 1)
-- cursor moves to start of line
check_eq(Editor_state.cursor1.line, 1, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 1, 'cursor:pos')
check_nil(Editor_state.selection1.line, 'selection is empty to avoid perturbing future edits')
end
function test_click_takes_margins_into_account()
-- display two lines with cursor on one of them
App.screen.init{width=100, height=80}
Editor_state = edit.initialize_test_state()
Editor_state.left = 50 -- occupy only right side of screen
Editor_state.lines = load_array{'abc', 'def'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=2, pos=1}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
-- click on the other line
edit.draw(Editor_state)
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, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 2, 'cursor:pos')
check_nil(Editor_state.selection1.line, 'selection is empty to avoid perturbing future edits')
end
function test_click_on_empty_line()
-- display two lines with the first one empty
App.screen.init{width=50, height=80}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'', 'def'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=2, pos=1}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
-- click on the empty line
edit.draw(Editor_state)
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, 'cursor')
end
function test_draw_text()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi'}
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)
local y = Editor_state.top
App.screen.check(y, 'abc', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'screen:3')
end
function test_draw_wrapping_text()
App.screen.init{width=50, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'defgh', '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 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abc', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'de', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'fgh', 'screen:3')
end
function test_draw_word_wrapping_text()
App.screen.init{width=60, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc def ghi', 'jkl'}
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)
local y = Editor_state.top
App.screen.check(y, 'abc ', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def ', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'screen:3')
end
function test_click_on_wrapping_line()
-- display two lines with cursor on one of them
App.screen.init{width=50, height=80}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc def ghi jkl mno pqr stu'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=20}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
-- click on the other line
edit.draw(Editor_state)
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, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 2, 'cursor:pos')
check_nil(Editor_state.selection1.line, 'selection is empty to avoid perturbing future edits')
end
function test_click_on_wrapping_line_takes_margins_into_account()
-- display two lines with cursor on one of them
App.screen.init{width=100, height=80}
Editor_state = edit.initialize_test_state()
Editor_state.left = 50 -- occupy only right side of screen
Editor_state.lines = load_array{'abc def ghi jkl mno pqr stu'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=20}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
-- click on the other line
edit.draw(Editor_state)
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, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 2, 'cursor:pos')
check_nil(Editor_state.selection1.line, 'selection is empty to avoid perturbing future edits')
end
function test_draw_text_wrapping_within_word()
-- arrange a screen line that needs to be split within a word
App.screen.init{width=60, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abcd e fghijk', '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 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abcd ', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'e fgh', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ijk', 'screen:3')
end
function test_draw_wrapping_text_containing_non_ascii()
-- draw a long line containing non-ASCII
App.screen.init{width=60, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'madam I’m adam', 'xyz'} -- notice the non-ASCII apostrophe
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)
local y = Editor_state.top
App.screen.check(y, 'mad', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'am I', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, '’m a', 'screen:3')
end
function test_click_on_wrapping_line()
-- display a wrapping line
App.screen.init{width=75, height=80}
Editor_state = edit.initialize_test_state()
-- 12345678901234
Editor_state.lines = load_array{"madam I'm adam"}
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)
local y = Editor_state.top
App.screen.check(y, 'madam ', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, "I'm ad", 'baseline/screen:2')
y = y + Editor_state.line_height
-- click past end of second screen line
edit.run_after_mouse_click(Editor_state, App.screen.width-2,y-2, 1)
-- cursor moves to end of screen line
check_eq(Editor_state.cursor1.line, 1, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 12, 'cursor:pos')
end
function test_click_on_wrapping_line_rendered_from_partway_at_top_of_screen()
-- display a wrapping line from its second screen line
App.screen.init{width=75, height=80}
Editor_state = edit.initialize_test_state()
-- 12345678901234
Editor_state.lines = load_array{"madam I'm adam"}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=8}
Editor_state.screen_top1 = {line=1, pos=7}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, "I'm ad", 'baseline/screen:2')
y = y + Editor_state.line_height
-- click past end of second screen line
edit.run_after_mouse_click(Editor_state, App.screen.width-2,y-2, 1)
-- cursor moves to end of screen line
check_eq(Editor_state.cursor1.line, 1, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 12, 'cursor:pos')
end
function test_click_past_end_of_wrapping_line()
-- display a wrapping line
App.screen.init{width=75, height=80}
Editor_state = edit.initialize_test_state()
-- 12345678901234
Editor_state.lines = load_array{"madam I'm adam"}
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)
local y = Editor_state.top
App.screen.check(y, 'madam ', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, "I'm ad", 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'am', 'baseline/screen:3')
y = y + Editor_state.line_height
-- click past the end of it
edit.run_after_mouse_click(Editor_state, App.screen.width-2,y-2, 1)
-- cursor moves to end of line
check_eq(Editor_state.cursor1.pos, 15, 'cursor') -- one more than the number of UTF-8 code-points
end
function test_click_past_end_of_wrapping_line_containing_non_ascii()
-- display a wrapping line containing non-ASCII
App.screen.init{width=75, height=80}
Editor_state = edit.initialize_test_state()
-- 12345678901234
Editor_state.lines = load_array{'madam I’m adam'} -- notice the non-ASCII apostrophe
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)
local y = Editor_state.top
App.screen.check(y, 'madam ', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'I’m ad', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'am', 'baseline/screen:3')
y = y + Editor_state.line_height
-- click past the end of it
edit.run_after_mouse_click(Editor_state, App.screen.width-2,y-2, 1)
-- cursor moves to end of line
check_eq(Editor_state.cursor1.pos, 15, 'cursor') -- one more than the number of UTF-8 code-points
end
function test_click_past_end_of_word_wrapping_line()
-- display a long line wrapping at a word boundary on a screen of more realistic length
App.screen.init{width=160, height=80}
Editor_state = edit.initialize_test_state()
-- 0 1 2
-- 123456789012345678901
Editor_state.lines = load_array{'the quick brown fox jumped over the lazy dog'}
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)
local y = Editor_state.top
App.screen.check(y, 'the quick brown fox ', 'baseline/screen:1')
y = y + Editor_state.line_height
-- click past the end of the screen line
edit.run_after_mouse_click(Editor_state, App.screen.width-2,y-2, 1)
-- cursor moves to end of screen line
check_eq(Editor_state.cursor1.pos, 20, 'cursor')
end
function test_select_text()
-- display a 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 a letter
App.fake_key_press('lshift')
edit.run_after_keychord(Editor_state, 'S-right')
App.fake_key_release('lshift')
edit.key_release(Editor_state, 'lshift')
-- selection persists even after shift is released
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, 2, 'cursor:pos')
end
function test_cursor_movement_without_shift_resets_selection()
-- display a line of text with some part selected
App.screen.init{width=75, height=80}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=1}
Editor_state.selection1 = {line=1, pos=2}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
-- press an arrow key without shift
edit.run_after_keychord(Editor_state, 'right')
-- no change to data, selection is reset
check_nil(Editor_state.selection1.line, 'check')
check_eq(Editor_state.lines[1].data, 'abc', 'data')
end
function test_edit_deletes_selection()
-- display a line of text with some part selected
App.screen.init{width=75, height=80}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=1}
Editor_state.selection1 = {line=1, pos=2}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
-- press a key
edit.run_after_text_input(Editor_state, 'x')
-- selected text is deleted and replaced with the key
check_eq(Editor_state.lines[1].data, 'xbc', 'check')
end
function test_edit_with_shift_key_deletes_selection()
-- display a line of text with some part selected
App.screen.init{width=75, height=80}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=1}
Editor_state.selection1 = {line=1, pos=2}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
-- mimic precise keypresses for a capital letter
App.fake_key_press('lshift')
edit.keychord_press(Editor_state, 'd', 'd')
edit.text_input(Editor_state, 'D')
edit.key_release(Editor_state, 'd')
App.fake_key_release('lshift')
-- selected text is deleted and replaced with the key
check_nil(Editor_state.selection1.line, 'check')
check_eq(Editor_state.lines[1].data, 'Dbc', 'data')
end
function test_copy_does_not_reset_selection()
-- display a line of text with a selection
App.screen.init{width=75, height=80}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=1}
Editor_state.selection1 = {line=1, pos=2}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
-- copy selection
edit.run_after_keychord(Editor_state, 'C-c')
check_eq(App.clipboard, 'a', 'clipboard')
-- selection is reset since shift key is not pressed
check(Editor_state.selection1.line, 'check')
end
function test_cut()
-- display a line of text with some part selected
App.screen.init{width=75, height=80}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=1}
Editor_state.selection1 = {line=1, pos=2}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
-- press a key
edit.run_after_keychord(Editor_state, 'C-x')
check_eq(App.clipboard, 'a', 'clipboard')
-- selected text is deleted
check_eq(Editor_state.lines[1].data, 'bc', 'data')
end
function test_paste_replaces_selection()
-- display a line of text with a selection
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=2, pos=1}
Editor_state.selection1 = {line=1, pos=1}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
-- set clipboard
App.clipboard = 'xyz'
-- paste selection
edit.run_after_keychord(Editor_state, 'C-v')
-- selection is reset since shift key is not pressed
-- selection includes the newline, so it's also deleted
check_eq(Editor_state.lines[1].data, 'xyzdef', 'check')
end
function test_deleting_selection_may_scroll()
-- display lines 2/3/4
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=3, pos=2}
Editor_state.screen_top1 = {line=2, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'def', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'jkl', 'baseline/screen:3')
-- set up a selection starting above the currently displayed page
Editor_state.selection1 = {line=1, pos=2}
-- delete selection
edit.run_after_keychord(Editor_state, 'backspace')
-- page scrolls up
check_eq(Editor_state.screen_top1.line, 1, 'check')
check_eq(Editor_state.lines[1].data, 'ahi', 'data')
end
function test_edit_wrapping_text()
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=2, pos=4}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
edit.run_after_text_input(Editor_state, 'g')
local y = Editor_state.top
App.screen.check(y, 'abc', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'de', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'fg', 'screen:3')
end
function test_insert_newline()
-- display a few lines
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=2}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abc', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'baseline/screen:3')
-- hitting the enter key splits the line
edit.run_after_keychord(Editor_state, 'return')
check_eq(Editor_state.screen_top1.line, 1, 'screen_top')
check_eq(Editor_state.cursor1.line, 2, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 1, 'cursor:pos')
y = Editor_state.top
App.screen.check(y, 'a', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'bc', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'screen:3')
end
function test_insert_newline_at_start_of_line()
-- display a line
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=1}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
-- hitting the enter key splits the line
edit.run_after_keychord(Editor_state, 'return')
check_eq(Editor_state.cursor1.line, 2, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 1, 'cursor:pos')
check_eq(Editor_state.lines[1].data, '', 'data:1')
check_eq(Editor_state.lines[2].data, 'abc', 'data:2')
end
function test_insert_from_clipboard()
-- display a few lines
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=2}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abc', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'baseline/screen:3')
-- paste some text including a newline, check that new line is created
App.clipboard = 'xy\nz'
edit.run_after_keychord(Editor_state, 'C-v')
check_eq(Editor_state.screen_top1.line, 1, 'screen_top')
check_eq(Editor_state.cursor1.line, 2, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 2, 'cursor:pos')
y = Editor_state.top
App.screen.check(y, 'axy', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'zbc', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'screen:3')
end
function test_select_text_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.draw(Editor_state) -- populate line_cache.starty for each line Editor_state.line_cache
-- press and hold on first location
edit.run_after_mouse_press(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)
-- drag and release somewhere else
edit.run_after_mouse_release(Editor_state, Editor_state.left+20,Editor_state.top+Editor_state.line_height+5, 1)
check_eq(Editor_state.selection1.line, 1, 'selection:line')
check_eq(Editor_state.selection1.pos, 2, 'selection:pos')
check_eq(Editor_state.cursor1.line, 2, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 4, 'cursor:pos')
end
function test_select_text_using_mouse_and_shift()
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.draw(Editor_state) -- populate line_cache.starty for each line Editor_state.line_cache
-- click on first location
edit.run_after_mouse_press(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)
edit.run_after_mouse_release(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)
-- hold down shift and click somewhere else
App.fake_key_press('lshift')
edit.run_after_mouse_press(Editor_state, Editor_state.left+20,Editor_state.top+5, 1)
edit.run_after_mouse_release(Editor_state, Editor_state.left+20,Editor_state.top+Editor_state.line_height+5, 1)
App.fake_key_release('lshift')
check_eq(Editor_state.selection1.line, 1, 'selection:line')
check_eq(Editor_state.selection1.pos, 2, 'selection:pos')
check_eq(Editor_state.cursor1.line, 2, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 4, 'cursor:pos')
end
function test_select_text_repeatedly_using_mouse_and_shift()
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)
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.draw(Editor_state) -- populate line_cache.starty for each line Editor_state.line_cache
-- click on first location
edit.run_after_mouse_press(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)
edit.run_after_mouse_release(Editor_state, Editor_state.left+8,Editor_state.top+5, 1)
-- hold down shift and click on a second location
App.fake_key_press('lshift')
edit.run_after_mouse_press(Editor_state, Editor_state.left+20,Editor_state.top+5, 1)
edit.run_after_mouse_release(Editor_state, Editor_state.left+20,Editor_state.top+Editor_state.line_height+5, 1)
-- hold down shift and click at a third location
App.fake_key_press('lshift')
edit.run_after_mouse_press(Editor_state, Editor_state.left+20,Editor_state.top+5, 1)
edit.run_after_mouse_release(Editor_state, Editor_state.left+8,Editor_state.top+Editor_state.line_height+5, 1)
App.fake_key_release('lshift')
-- selection is between first and third location. forget the second location, not the first.
check_eq(Editor_state.selection1.line, 1, 'selection:line')
check_eq(Editor_state.selection1.pos, 2, 'selection:pos')
check_eq(Editor_state.cursor1.line, 2, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 2, 'cursor:pos')
end
function test_cut_without_selection()
-- display a few lines
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=2}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
Editor_state.selection1 = {}
edit.draw(Editor_state)
-- try to cut without selecting text
edit.run_after_keychord(Editor_state, 'C-x')
-- no crash
check_nil(Editor_state.selection1.line, 'check')
end
function test_pagedown()
App.screen.init{width=120, height=45}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=1}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
-- initially the first two lines are displayed
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abc', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'baseline/screen:2')
-- after pagedown the bottom line becomes the top
edit.run_after_keychord(Editor_state, 'pagedown')
check_eq(Editor_state.screen_top1.line, 2, 'screen_top')
check_eq(Editor_state.cursor1.line, 2, 'cursor')
y = Editor_state.top
App.screen.check(y, 'def', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'screen:2')
end
function test_pagedown_skips_drawings()
-- some lines of text with a drawing intermixed
local drawing_width = 50
App.screen.init{width=Editor_state.left+drawing_width, height=80}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', -- height 15
'```lines', '```', -- height 25
'def', -- height 15
'ghi'} -- height 15
Text.redraw_all(Editor_state)
check_eq(Editor_state.lines[2].mode, 'drawing', 'baseline/lines')
Editor_state.cursor1 = {line=1, pos=1}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
local drawing_height = Drawing_padding_height + drawing_width/2 -- default
-- initially the screen displays the first line and the drawing
-- 15px margin + 15px line1 + 10px margin + 25px drawing + 10px margin = 75px < screen height 80px
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abc', 'baseline/screen:1')
-- after pagedown the screen draws the drawing up top
-- 15px margin + 10px margin + 25px drawing + 10px margin + 15px line3 = 75px < screen height 80px
edit.run_after_keychord(Editor_state, 'pagedown')
check_eq(Editor_state.screen_top1.line, 2, 'screen_top')
check_eq(Editor_state.cursor1.line, 3, 'cursor')
y = Editor_state.top + drawing_height
App.screen.check(y, 'def', 'screen:1')
end
function test_pagedown_can_start_from_middle_of_long_wrapping_line()
-- draw a few lines starting from a very long wrapping line
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc def ghi jkl mno pqr stu vwx yza bcd efg hij', 'XYZ'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=2}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abc ', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def ', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi ', 'baseline/screen:3')
-- after pagedown we scroll down the very long wrapping line
edit.run_after_keychord(Editor_state, 'pagedown')
check_eq(Editor_state.screen_top1.line, 1, 'screen_top:line')
check_eq(Editor_state.screen_top1.pos, 9, 'screen_top:pos')
y = Editor_state.top
App.screen.check(y, 'ghi ', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'jkl ', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'mno ', 'screen:3')
end
function test_pagedown_never_moves_up()
-- draw the final screen line of a wrapping line
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc def ghi'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=9}
Editor_state.screen_top1 = {line=1, pos=9}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
-- pagedown makes no change
edit.run_after_keychord(Editor_state, 'pagedown')
check_eq(Editor_state.screen_top1.line, 1, 'screen_top:line')
check_eq(Editor_state.screen_top1.pos, 9, 'screen_top:pos')
end
function test_down_arrow_moves_cursor()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=1}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
-- initially the first three lines are displayed
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abc', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'baseline/screen:3')
-- after hitting the down arrow, the cursor moves down by 1 line
edit.run_after_keychord(Editor_state, 'down')
check_eq(Editor_state.screen_top1.line, 1, 'screen_top')
check_eq(Editor_state.cursor1.line, 2, 'cursor')
-- the screen is unchanged
y = Editor_state.top
App.screen.check(y, 'abc', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'screen:3')
end
function test_down_arrow_scrolls_down_by_one_line()
-- display the first three lines with the cursor on the bottom line
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=3, pos=1}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abc', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'baseline/screen:3')
-- after hitting the down arrow the screen scrolls down by one line
edit.run_after_keychord(Editor_state, 'down')
check_eq(Editor_state.screen_top1.line, 2, 'screen_top')
check_eq(Editor_state.cursor1.line, 4, 'cursor')
y = Editor_state.top
App.screen.check(y, 'def', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'jkl', 'screen:3')
end
function test_down_arrow_scrolls_down_by_one_screen_line()
-- display the first three lines with the cursor on the bottom line
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=3, pos=1}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abc', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi ', 'baseline/screen:3') -- line wrapping includes trailing whitespace
-- after hitting the down arrow the screen scrolls down by one line
edit.run_after_keychord(Editor_state, 'down')
check_eq(Editor_state.screen_top1.line, 2, 'screen_top')
check_eq(Editor_state.cursor1.line, 3, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 5, 'cursor:pos')
y = Editor_state.top
App.screen.check(y, 'def', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi ', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'jkl', 'screen:3')
end
function test_down_arrow_scrolls_down_by_one_screen_line_after_splitting_within_word()
-- display the first three lines with the cursor on the bottom line
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghijkl', 'mno'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=3, pos=1}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abc', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghij', 'baseline/screen:3')
-- after hitting the down arrow the screen scrolls down by one line
edit.run_after_keychord(Editor_state, 'down')
check_eq(Editor_state.screen_top1.line, 2, 'screen_top')
check_eq(Editor_state.cursor1.line, 3, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 5, 'cursor:pos')
y = Editor_state.top
App.screen.check(y, 'def', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'ghij', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'kl', 'screen:3')
end
function test_pagedown_followed_by_down_arrow_does_not_scroll_screen_up()
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghijkl', 'mno'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=3, pos=1}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abc', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghij', 'baseline/screen:3')
-- after hitting pagedown the screen scrolls down to start of a long line
edit.run_after_keychord(Editor_state, 'pagedown')
check_eq(Editor_state.screen_top1.line, 3, 'baseline2/screen_top')
check_eq(Editor_state.cursor1.line, 3, 'baseline2/cursor:line')
check_eq(Editor_state.cursor1.pos, 1, 'baseline2/cursor:pos')
-- after hitting down arrow the screen doesn't scroll down further, and certainly doesn't scroll up
edit.run_after_keychord(Editor_state, 'down')
check_eq(Editor_state.screen_top1.line, 3, 'screen_top')
check_eq(Editor_state.cursor1.line, 3, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 5, 'cursor:pos')
y = Editor_state.top
App.screen.check(y, 'ghij', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'kl', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'mno', 'screen:3')
end
function test_up_arrow_moves_cursor()
-- display the first 3 lines with the cursor on the bottom line
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=3, pos=1}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abc', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'baseline/screen:3')
-- after hitting the up arrow the cursor moves up by 1 line
edit.run_after_keychord(Editor_state, 'up')
check_eq(Editor_state.screen_top1.line, 1, 'screen_top')
check_eq(Editor_state.cursor1.line, 2, 'cursor')
-- the screen is unchanged
y = Editor_state.top
App.screen.check(y, 'abc', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'screen:3')
end
function test_up_arrow_scrolls_up_by_one_line()
-- display the lines 2/3/4 with the cursor on line 2
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=2, pos=1}
Editor_state.screen_top1 = {line=2, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'def', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'jkl', 'baseline/screen:3')
-- after hitting the up arrow the screen scrolls up by one line
edit.run_after_keychord(Editor_state, 'up')
check_eq(Editor_state.screen_top1.line, 1, 'screen_top')
check_eq(Editor_state.cursor1.line, 1, 'cursor')
y = Editor_state.top
App.screen.check(y, 'abc', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'screen:3')
end
function test_up_arrow_scrolls_up_by_one_screen_line()
-- display lines starting from second screen line of a line
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=3, pos=6}
Editor_state.screen_top1 = {line=3, pos=5}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'jkl', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'mno', 'baseline/screen:2')
-- after hitting the up arrow the screen scrolls up to first screen line
edit.run_after_keychord(Editor_state, 'up')
y = Editor_state.top
App.screen.check(y, 'ghi ', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'jkl', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'mno', 'screen:3')
check_eq(Editor_state.screen_top1.line, 3, 'screen_top:line')
check_eq(Editor_state.screen_top1.pos, 1, 'screen_top:pos')
check_eq(Editor_state.cursor1.line, 3, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 1, 'cursor:pos')
end
function test_up_arrow_scrolls_up_to_final_screen_line()
-- display lines starting just after a long line
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc def', 'ghi', 'jkl', 'mno'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=2, pos=1}
Editor_state.screen_top1 = {line=2, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'ghi', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'jkl', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'mno', 'baseline/screen:3')
-- after hitting the up arrow the screen scrolls up to final screen line of previous line
edit.run_after_keychord(Editor_state, 'up')
y = Editor_state.top
App.screen.check(y, 'def', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'jkl', 'screen:3')
check_eq(Editor_state.screen_top1.line, 1, 'screen_top:line')
check_eq(Editor_state.screen_top1.pos, 5, 'screen_top:pos')
check_eq(Editor_state.cursor1.line, 1, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 5, 'cursor:pos')
end
function test_up_arrow_scrolls_up_to_empty_line()
-- display a screenful of text with an empty line just above it outside the screen
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'', 'abc', 'def', 'ghi', 'jkl'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=2, pos=1}
Editor_state.screen_top1 = {line=2, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abc', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'baseline/screen:3')
-- after hitting the up arrow the screen scrolls up by one line
edit.run_after_keychord(Editor_state, 'up')
check_eq(Editor_state.screen_top1.line, 1, 'screen_top')
check_eq(Editor_state.cursor1.line, 1, 'cursor')
y = Editor_state.top
-- empty first line
y = y + Editor_state.line_height
App.screen.check(y, 'abc', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'screen:3')
end
function test_pageup()
App.screen.init{width=120, height=45}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=2, pos=1}
Editor_state.screen_top1 = {line=2, pos=1}
Editor_state.screen_bottom1 = {}
-- initially the last two lines are displayed
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'def', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'baseline/screen:2')
-- after pageup the cursor goes to first line
edit.run_after_keychord(Editor_state, 'pageup')
check_eq(Editor_state.screen_top1.line, 1, 'screen_top')
check_eq(Editor_state.cursor1.line, 1, 'cursor')
y = Editor_state.top
App.screen.check(y, 'abc', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'screen:2')
end
function test_pageup_scrolls_up_by_screen_line()
-- display the first three lines with the cursor on the bottom line
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc def', 'ghi', 'jkl', 'mno'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=2, pos=1}
Editor_state.screen_top1 = {line=2, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'ghi', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'jkl', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'mno', 'baseline/screen:3') -- line wrapping includes trailing whitespace
-- after hitting the page-up key the screen scrolls up to top
edit.run_after_keychord(Editor_state, 'pageup')
check_eq(Editor_state.screen_top1.line, 1, 'screen_top')
check_eq(Editor_state.cursor1.line, 1, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 1, 'cursor:pos')
y = Editor_state.top
App.screen.check(y, 'abc ', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'screen:3')
end
function test_pageup_scrolls_up_from_middle_screen_line()
-- display a few lines starting from the middle of a line (Editor_state.cursor1.pos > 1)
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc def', 'ghi jkl', 'mno'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=2, pos=5}
Editor_state.screen_top1 = {line=2, pos=5}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'jkl', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'mno', 'baseline/screen:3') -- line wrapping includes trailing whitespace
-- after hitting the page-up key the screen scrolls up to top
edit.run_after_keychord(Editor_state, 'pageup')
check_eq(Editor_state.screen_top1.line, 1, 'screen_top')
check_eq(Editor_state.cursor1.line, 1, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 1, 'cursor:pos')
y = Editor_state.top
App.screen.check(y, 'abc ', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi ', 'screen:3')
end
function test_enter_on_bottom_line_scrolls_down()
-- display a few lines with cursor on bottom line
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=3, pos=2}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abc', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'baseline/screen:3')
-- after hitting the enter key the screen scrolls down
edit.run_after_keychord(Editor_state, 'return')
check_eq(Editor_state.screen_top1.line, 2, 'screen_top')
check_eq(Editor_state.cursor1.line, 4, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 1, 'cursor:pos')
y = Editor_state.top
App.screen.check(y, 'def', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'g', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'hi', 'screen:3')
end
function test_enter_on_final_line_avoids_scrolling_down_when_not_at_bottom()
-- display just the bottom line on screen
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=4, pos=2}
Editor_state.screen_top1 = {line=4, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'jkl', 'baseline/screen:1')
-- after hitting the enter key the screen does not scroll down
edit.run_after_keychord(Editor_state, 'return')
check_eq(Editor_state.screen_top1.line, 4, 'screen_top')
check_eq(Editor_state.cursor1.line, 5, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 1, 'cursor:pos')
y = Editor_state.top
App.screen.check(y, 'j', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'kl', 'screen:2')
end
function test_inserting_text_on_final_line_avoids_scrolling_down_when_not_at_bottom()
-- display just an empty bottom line on screen
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', ''}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=2, pos=1}
Editor_state.screen_top1 = {line=2, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
-- after hitting the inserting_text key the screen does not scroll down
edit.run_after_text_input(Editor_state, 'a')
check_eq(Editor_state.screen_top1.line, 2, 'screen_top')
check_eq(Editor_state.cursor1.line, 2, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 2, 'cursor:pos')
local y = Editor_state.top
App.screen.check(y, 'a', 'screen:1')
end
function test_typing_on_bottom_line_scrolls_down()
-- display a few lines with cursor on bottom line
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=3, pos=4}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abc', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'baseline/screen:3')
-- after typing something the line wraps and the screen scrolls down
edit.run_after_text_input(Editor_state, 'j')
edit.run_after_text_input(Editor_state, 'k')
edit.run_after_text_input(Editor_state, 'l')
check_eq(Editor_state.screen_top1.line, 2, 'screen_top')
check_eq(Editor_state.cursor1.line, 3, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 7, 'cursor:pos')
y = Editor_state.top
App.screen.check(y, 'def', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'ghij', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'kl', 'screen:3')
end
function test_left_arrow_scrolls_up_in_wrapped_line()
-- display lines starting from second screen line of a line
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}
Text.redraw_all(Editor_state)
Editor_state.screen_top1 = {line=3, pos=5}
Editor_state.screen_bottom1 = {}
-- cursor is at top of screen
Editor_state.cursor1 = {line=3, pos=5}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'jkl', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'mno', 'baseline/screen:2')
-- after hitting the left arrow the screen scrolls up to first screen line
edit.run_after_keychord(Editor_state, 'left')
y = Editor_state.top
App.screen.check(y, 'ghi ', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'jkl', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'mno', 'screen:3')
check_eq(Editor_state.screen_top1.line, 3, 'screen_top:line')
check_eq(Editor_state.screen_top1.pos, 1, 'screen_top:pos')
check_eq(Editor_state.cursor1.line, 3, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 4, 'cursor:pos')
end
function test_right_arrow_scrolls_down_in_wrapped_line()
-- display the first three lines with the cursor on the bottom line
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}
Text.redraw_all(Editor_state)
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
-- cursor is at bottom right of screen
Editor_state.cursor1 = {line=3, pos=5}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abc', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi ', 'baseline/screen:3') -- line wrapping includes trailing whitespace
-- after hitting the right arrow the screen scrolls down by one line
edit.run_after_keychord(Editor_state, 'right')
check_eq(Editor_state.screen_top1.line, 2, 'screen_top')
check_eq(Editor_state.cursor1.line, 3, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 6, 'cursor:pos')
y = Editor_state.top
App.screen.check(y, 'def', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi ', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'jkl', 'screen:3')
end
function test_home_scrolls_up_in_wrapped_line()
-- display lines starting from second screen line of a line
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}
Text.redraw_all(Editor_state)
Editor_state.screen_top1 = {line=3, pos=5}
Editor_state.screen_bottom1 = {}
-- cursor is at top of screen
Editor_state.cursor1 = {line=3, pos=5}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'jkl', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'mno', 'baseline/screen:2')
-- after hitting home the screen scrolls up to first screen line
edit.run_after_keychord(Editor_state, 'home')
y = Editor_state.top
App.screen.check(y, 'ghi ', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'jkl', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'mno', 'screen:3')
check_eq(Editor_state.screen_top1.line, 3, 'screen_top:line')
check_eq(Editor_state.screen_top1.pos, 1, 'screen_top:pos')
check_eq(Editor_state.cursor1.line, 3, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 1, 'cursor:pos')
end
function test_end_scrolls_down_in_wrapped_line()
-- display the first three lines with the cursor on the bottom line
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}
Text.redraw_all(Editor_state)
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
-- cursor is at bottom right of screen
Editor_state.cursor1 = {line=3, pos=5}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abc', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi ', 'baseline/screen:3') -- line wrapping includes trailing whitespace
-- after hitting end the screen scrolls down by one line
edit.run_after_keychord(Editor_state, 'end')
check_eq(Editor_state.screen_top1.line, 2, 'screen_top')
check_eq(Editor_state.cursor1.line, 3, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 8, 'cursor:pos')
y = Editor_state.top
App.screen.check(y, 'def', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi ', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'jkl', 'screen:3')
end
function test_position_cursor_on_recently_edited_wrapping_line()
-- draw a line wrapping over 2 screen lines
App.screen.init{width=100, height=200}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc def ghi jkl mno pqr ', 'xyz'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=25}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'abc def ghi ', 'baseline1/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'jkl mno pqr ', 'baseline1/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'xyz', 'baseline1/screen:3')
-- add to the line until it's wrapping over 3 screen lines
edit.run_after_text_input(Editor_state, 's')
edit.run_after_text_input(Editor_state, 't')
edit.run_after_text_input(Editor_state, 'u')
check_eq(Editor_state.cursor1.pos, 28, 'cursor:pos')
y = Editor_state.top
App.screen.check(y, 'abc def ghi ', 'baseline2/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'jkl mno pqr ', 'baseline2/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'stu', 'baseline2/screen:3')
-- try to move the cursor earlier in the third screen line by clicking the mouse
edit.run_after_mouse_release(Editor_state, Editor_state.left+8,Editor_state.top+Editor_state.line_height*2+5, 1)
-- cursor should move
check_eq(Editor_state.cursor1.line, 1, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 26, 'cursor:pos')
end
function test_backspace_can_scroll_up()
-- display the lines 2/3/4 with the cursor on line 2
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=2, pos=1}
Editor_state.screen_top1 = {line=2, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'def', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'jkl', 'baseline/screen:3')
-- after hitting backspace the screen scrolls up by one line
edit.run_after_keychord(Editor_state, 'backspace')
check_eq(Editor_state.screen_top1.line, 1, 'screen_top')
check_eq(Editor_state.cursor1.line, 1, 'cursor')
y = Editor_state.top
App.screen.check(y, 'abcdef', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'ghi', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'jkl', 'screen:3')
end
function test_backspace_can_scroll_up_screen_line()
-- display lines starting from second screen line of a line
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi jkl', 'mno'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=3, pos=5}
Editor_state.screen_top1 = {line=3, pos=5}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
local y = Editor_state.top
App.screen.check(y, 'jkl', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'mno', 'baseline/screen:2')
-- after hitting backspace the screen scrolls up by one screen line
edit.run_after_keychord(Editor_state, 'backspace')
y = Editor_state.top
App.screen.check(y, 'ghij', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'kl', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'mno', 'screen:3')
check_eq(Editor_state.screen_top1.line, 3, 'screen_top:line')
check_eq(Editor_state.screen_top1.pos, 1, 'screen_top:pos')
check_eq(Editor_state.cursor1.line, 3, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 4, 'cursor:pos')
end
function test_backspace_past_line_boundary()
-- position cursor at start of a (non-first) line
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=2, pos=1}
-- backspace joins with previous line
edit.run_after_keychord(Editor_state, 'backspace')
check_eq(Editor_state.lines[1].data, 'abcdef', 'check')
end
-- some tests for operating over selections created using Shift- chords
-- we're just testing delete_selection, and it works the same for all keys
function test_backspace_over_selection()
-- select just one character within a line with cursor before selection
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl', 'mno'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=1}
Editor_state.selection1 = {line=1, pos=2}
-- backspace deletes the selected character, even though it's after the cursor
edit.run_after_keychord(Editor_state, 'backspace')
check_eq(Editor_state.lines[1].data, 'bc', 'data')
-- cursor (remains) at start of selection
check_eq(Editor_state.cursor1.line, 1, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 1, 'cursor:pos')
-- selection is cleared
check_nil(Editor_state.selection1.line, 'selection')
end
function test_backspace_over_selection_reverse()
-- select just one character within a line with cursor after selection
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl', 'mno'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=2}
Editor_state.selection1 = {line=1, pos=1}
-- backspace deletes the selected character
edit.run_after_keychord(Editor_state, 'backspace')
check_eq(Editor_state.lines[1].data, 'bc', 'data')
-- cursor moves to start of selection
check_eq(Editor_state.cursor1.line, 1, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 1, 'cursor:pos')
-- selection is cleared
check_nil(Editor_state.selection1.line, 'selection')
end
function test_backspace_over_multiple_lines()
-- select just one character within a line with cursor after selection
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl', 'mno'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=2}
Editor_state.selection1 = {line=4, pos=2}
-- backspace deletes the region and joins the remaining portions of lines on either side
edit.run_after_keychord(Editor_state, 'backspace')
check_eq(Editor_state.lines[1].data, 'akl', 'data:1')
check_eq(Editor_state.lines[2].data, 'mno', 'data:2')
-- cursor remains at start of selection
check_eq(Editor_state.cursor1.line, 1, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 2, 'cursor:pos')
-- selection is cleared
check_nil(Editor_state.selection1.line, 'selection')
end
function test_backspace_to_end_of_line()
-- select region from cursor to end of line
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl', 'mno'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=2}
Editor_state.selection1 = {line=1, pos=4}
-- backspace deletes rest of line without joining to any other line
edit.run_after_keychord(Editor_state, 'backspace')
check_eq(Editor_state.lines[1].data, 'a', 'data:1')
check_eq(Editor_state.lines[2].data, 'def', 'data:2')
-- cursor remains at start of selection
check_eq(Editor_state.cursor1.line, 1, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 2, 'cursor:pos')
-- selection is cleared
check_nil(Editor_state.selection1.line, 'selection')
end
function test_backspace_to_start_of_line()
-- select region from cursor to start of line
App.screen.init{width=Editor_state.left+30, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'def', 'ghi', 'jkl', 'mno'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=2, pos=1}
Editor_state.selection1 = {line=2, pos=3}
-- backspace deletes beginning of line without joining to any other line
edit.run_after_keychord(Editor_state, 'backspace')
check_eq(Editor_state.lines[1].data, 'abc', 'data:1')
check_eq(Editor_state.lines[2].data, 'f', 'data:2')
-- cursor remains at start of selection
check_eq(Editor_state.cursor1.line, 2, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 1, 'cursor:pos')
-- selection is cleared
check_nil(Editor_state.selection1.line, 'selection')
end
function test_undo_insert_text()
App.screen.init{width=120, 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=2, pos=4}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
-- insert a character
edit.draw(Editor_state)
edit.run_after_text_input(Editor_state, 'g')
check_eq(Editor_state.cursor1.line, 2, 'baseline/cursor:line')
check_eq(Editor_state.cursor1.pos, 5, 'baseline/cursor:pos')
check_nil(Editor_state.selection1.line, 'baseline/selection:line')
check_nil(Editor_state.selection1.pos, 'baseline/selection:pos')
local y = Editor_state.top
App.screen.check(y, 'abc', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'defg', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'xyz', 'baseline/screen:3')
-- undo
edit.run_after_keychord(Editor_state, 'C-z')
check_eq(Editor_state.cursor1.line, 2, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 4, 'cursor:pos')
check_nil(Editor_state.selection1.line, 'selection:line')
check_nil(Editor_state.selection1.pos, 'selection:pos')
y = Editor_state.top
App.screen.check(y, 'abc', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'xyz', 'screen:3')
end
function test_undo_delete_text()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc', 'defg', 'xyz'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=2, pos=5}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
-- delete a character
edit.run_after_keychord(Editor_state, 'backspace')
check_eq(Editor_state.cursor1.line, 2, 'baseline/cursor:line')
check_eq(Editor_state.cursor1.pos, 4, 'baseline/cursor:pos')
check_nil(Editor_state.selection1.line, 'baseline/selection:line')
check_nil(Editor_state.selection1.pos, 'baseline/selection:pos')
local y = Editor_state.top
App.screen.check(y, 'abc', 'baseline/screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'def', 'baseline/screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'xyz', 'baseline/screen:3')
-- undo
--? -- after undo, the backspaced key is selected
edit.run_after_keychord(Editor_state, 'C-z')
check_eq(Editor_state.cursor1.line, 2, 'cursor:line')
check_eq(Editor_state.cursor1.pos, 5, 'cursor:pos')
check_nil(Editor_state.selection1.line, 'selection:line')
check_nil(Editor_state.selection1.pos, 'selection:pos')
--? check_eq(Editor_state.selection1.line, 2, 'selection:line')
--? check_eq(Editor_state.selection1.pos, 4, 'selection:pos')
y = Editor_state.top
App.screen.check(y, 'abc', 'screen:1')
y = y + Editor_state.line_height
App.screen.check(y, 'defg', 'screen:2')
y = y + Editor_state.line_height
App.screen.check(y, 'xyz', 'screen:3')
end
function test_undo_restores_selection()
-- display a line of text with some part selected
App.screen.init{width=75, height=80}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=1}
Editor_state.selection1 = {line=1, pos=2}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
-- delete selected text
edit.run_after_text_input(Editor_state, 'x')
check_eq(Editor_state.lines[1].data, 'xbc', 'baseline')
check_nil(Editor_state.selection1.line, 'baseline:selection')
-- undo
edit.run_after_keychord(Editor_state, 'C-z')
edit.run_after_keychord(Editor_state, 'C-z')
-- selection is restored
check_eq(Editor_state.selection1.line, 1, 'line')
check_eq(Editor_state.selection1.pos, 2, 'pos')
end
function test_search()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'```lines', '```', 'def', 'ghi', 'deg'}
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)
-- search for a string
edit.run_after_keychord(Editor_state, 'C-f')
edit.run_after_text_input(Editor_state, 'd')
edit.run_after_keychord(Editor_state, 'return')
check_eq(Editor_state.cursor1.line, 2, '1/cursor:line')
check_eq(Editor_state.cursor1.pos, 1, '1/cursor:pos')
-- reset cursor
Editor_state.cursor1 = {line=1, pos=1}
Editor_state.screen_top1 = {line=1, pos=1}
-- search for second occurrence
edit.run_after_keychord(Editor_state, 'C-f')
edit.run_after_text_input(Editor_state, 'de')
edit.run_after_keychord(Editor_state, 'down')
edit.run_after_keychord(Editor_state, 'return')
check_eq(Editor_state.cursor1.line, 4, '2/cursor:line')
check_eq(Editor_state.cursor1.pos, 1, '2/cursor:pos')
end
function test_search_upwards()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc abd'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=2}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
-- search for a string
edit.run_after_keychord(Editor_state, 'C-f')
edit.run_after_text_input(Editor_state, 'a')
-- search for previous occurrence
edit.run_after_keychord(Editor_state, 'up')
check_eq(Editor_state.cursor1.line, 1, '2/cursor:line')
check_eq(Editor_state.cursor1.pos, 1, '2/cursor:pos')
end
function test_search_wrap()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc'}
Text.redraw_all(Editor_state)
Editor_state.cursor1 = {line=1, pos=3}
Editor_state.screen_top1 = {line=1, pos=1}
Editor_state.screen_bottom1 = {}
edit.draw(Editor_state)
-- search for a string
edit.run_after_keychord(Editor_state, 'C-f')
edit.run_after_text_input(Editor_state, 'a')
edit.run_after_keychord(Editor_state, 'return')
-- cursor wraps
check_eq(Editor_state.cursor1.line, 1, '1/cursor:line')
check_eq(Editor_state.cursor1.pos, 1, '1/cursor:pos')
end
function test_search_wrap_upwards()
App.screen.init{width=120, height=60}
Editor_state = edit.initialize_test_state()
Editor_state.lines = load_array{'abc abd'}
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)
-- search upwards for a string
edit.run_after_keychord(Editor_state, 'C-f')
edit.run_after_text_input(Editor_state, 'a')
edit.run_after_keychord(Editor_state, 'up')
-- cursor wraps
check_eq(Editor_state.cursor1.line, 1, '1/cursor:line')
check_eq(Editor_state.cursor1.pos, 5, '1/cursor:pos')
end