def test_cursor_position():
screen = Screen(10, 10)
# a) testing that we expect 1-indexed values
screen.cursor_position(5, 10)
assert (screen.cursor.y, screen.cursor.x) == (4, 9)
# b) but (0, 0) is also accepted and should be the same as (1, 1)
screen.cursor_position(0, 10)
assert (screen.cursor.y, screen.cursor.x) == (0, 9)
# c) moving outside the margins constrains to within the screen
# bounds
screen.cursor_position(100, 5)
assert (screen.cursor.y, screen.cursor.x) == (9, 4)
screen.cursor_position(5, 100)
assert (screen.cursor.y, screen.cursor.x) == (4, 9)
# d) DECOM on
screen.set_margins(5, 9)
screen.set_mode(mo.DECOM)
screen.cursor_position()
assert (screen.cursor.y, screen.cursor.x) == (4, 0)
screen.cursor_position(2, 0)
assert (screen.cursor.y, screen.cursor.x) == (5, 0)
# Note that cursor position doesn't change.
screen.cursor_position(10, 0)
assert (screen.cursor.y, screen.cursor.x) == (5, 0)
def test_cursor_position():
screen = Screen(10, 10)
# a) testing that we expect 1-indexed values
screen.cursor_position(5, 10)
assert (screen.cursor.y, screen.cursor.x) == (4, 9)
# b) but (0, 0) is also accepted and should be the same as (1, 1)
screen.cursor_position(0, 10)
assert (screen.cursor.y, screen.cursor.x) == (0, 9)
# c) moving outside the margins constrains to within the screen
# bounds
screen.cursor_position(100, 5)
assert (screen.cursor.y, screen.cursor.x) == (9, 4)
screen.cursor_position(5, 100)
assert (screen.cursor.y, screen.cursor.x) == (4, 9)
# d) DECOM on
screen.set_margins(5, 9)
screen.set_mode(mo.DECOM)
screen.cursor_position()
assert (screen.cursor.y, screen.cursor.x) == (4, 0)
screen.cursor_position(2, 0)
assert (screen.cursor.y, screen.cursor.x) == (5, 0)
# Note that cursor position doesn't change.
screen.cursor_position(10, 0)
assert (screen.cursor.y, screen.cursor.x) == (5, 0)
def test_restore_cursor_with_none_saved():
screen = Screen(10, 10)
screen.set_mode(mo.DECOM)
screen.cursor.x, screen.cursor.y = 5, 5
screen.restore_cursor()
assert (screen.cursor.y, screen.cursor.x) == (0, 0)
assert mo.DECOM not in screen.mode
def test_restore_cursor_with_none_saved():
screen = Screen(10, 10)
screen.set_mode(mo.DECOM)
screen.cursor.x, screen.cursor.y = 5, 5
screen.restore_cursor()
assert (screen.cursor.y, screen.cursor.x) == (0, 0)
assert mo.DECOM not in screen.mode
def test_resize():
screen = Screen(2, 2)
screen.set_mode(mo.DECOM)
screen.set_margins(0, 1)
assert screen.size == (2, 2)
assert len(screen) == 2
assert len(screen[0]) == 2
assert screen == [[screen.default_char, screen.default_char]] * 2
screen.resize(3, 3)
assert screen.size == (3, 3)
assert len(screen) == 3
assert len(screen[0]) == 3
assert screen == [[screen.default_char,
screen.default_char,
screen.default_char]] * 3
assert mo.DECOM not in screen.mode
assert screen.margins == (0, 2)
screen.resize(2, 2)
assert screen.size == (2, 2)
assert len(screen) == 2
assert len(screen[0]) == 2
assert screen == [[screen.default_char, screen.default_char]] * 2
# quirks:
# a) if the current display is thinner than the requested size,
# new columns should be added to the right.
screen = update(Screen(2, 2), ["bo", "sh"], [None, None])
screen.resize(2, 3)
assert screen.display == ["bo ", "sh "]
# b) if the current display is wider than the requested size,
# columns should be removed from the right...
screen = update(Screen(2, 2), ["bo", "sh"], [None, None])
screen.resize(2, 1)
assert screen.display == ["b", "s"]
# c) if the current display is shorter than the requested
# size, new rows should be added on the bottom.
screen = update(Screen(2, 2), ["bo", "sh"], [None, None])
screen.resize(3, 2)
assert screen.display == ["bo", "sh", " "]
# d) if the current display is taller than the requested
# size, rows should be removed from the top.
screen = update(Screen(2, 2), ["bo", "sh"], [None, None])
screen.resize(1, 2)
assert screen.display == ["sh"]
def test_resize():
screen = Screen(2, 2)
screen.set_mode(mo.DECOM)
screen.set_margins(0, 1)
assert screen.size == (2, 2)
assert len(screen) == 2
assert len(screen[0]) == 2
assert screen == [[screen.default_char, screen.default_char]] * 2
screen.resize(3, 3)
assert screen.size == (3, 3)
assert len(screen) == 3
assert len(screen[0]) == 3
assert screen == [[
screen.default_char, screen.default_char, screen.default_char
]] * 3
assert mo.DECOM not in screen.mode
assert screen.margins == (0, 2)
screen.resize(2, 2)
assert screen.size == (2, 2)
assert len(screen) == 2
assert len(screen[0]) == 2
assert screen == [[screen.default_char, screen.default_char]] * 2
# quirks:
# a) if the current display is thinner than the requested size,
# new columns should be added to the right.
screen = update(Screen(2, 2), ["bo", "sh"], [None, None])
screen.resize(2, 3)
assert screen.display == ["bo ", "sh "]
# b) if the current display is wider than the requested size,
# columns should be removed from the right...
screen = update(Screen(2, 2), ["bo", "sh"], [None, None])
screen.resize(2, 1)
assert screen.display == ["b", "s"]
# c) if the current display is shorter than the requested
# size, new rows should be added on the bottom.
screen = update(Screen(2, 2), ["bo", "sh"], [None, None])
screen.resize(3, 2)
assert screen.display == ["bo", "sh", " "]
# d) if the current display is taller than the requested
# size, rows should be removed from the top.
screen = update(Screen(2, 2), ["bo", "sh"], [None, None])
screen.resize(1, 2)
assert screen.display == ["sh"]
def test_save_cursor():
# a) cursor position
screen = Screen(10, 10)
screen.save_cursor()
screen.cursor.x, screen.cursor.y = 3, 5
screen.save_cursor()
screen.cursor.x, screen.cursor.y = 4, 4
screen.restore_cursor()
assert screen.cursor.x == 3
assert screen.cursor.y == 5
screen.restore_cursor()
assert screen.cursor.x == 0
assert screen.cursor.y == 0
# b) modes
screen = Screen(10, 10)
screen.set_mode(mo.DECAWM, mo.DECOM)
screen.save_cursor()
screen.reset_mode(mo.DECAWM)
screen.restore_cursor()
assert mo.DECAWM in screen.mode
assert mo.DECOM in screen.mode
# c) attributes
screen = Screen(10, 10)
screen.select_graphic_rendition(4)
screen.save_cursor()
screen.select_graphic_rendition(24)
assert screen.cursor.attrs == screen.default_char
screen.restore_cursor()
assert screen.cursor.attrs != screen.default_char
assert screen.cursor.attrs == Char(" ", underscore=True)
def test_save_cursor():
# a) cursor position
screen = Screen(10, 10)
screen.save_cursor()
screen.cursor.x, screen.cursor.y = 3, 5
screen.save_cursor()
screen.cursor.x, screen.cursor.y = 4, 4
screen.restore_cursor()
assert screen.cursor.x == 3
assert screen.cursor.y == 5
screen.restore_cursor()
assert screen.cursor.x == 0
assert screen.cursor.y == 0
# b) modes
screen = Screen(10, 10)
screen.set_mode(mo.DECAWM, mo.DECOM)
screen.save_cursor()
screen.reset_mode(mo.DECAWM)
screen.restore_cursor()
assert mo.DECAWM in screen.mode
assert mo.DECOM in screen.mode
# c) attributes
screen = Screen(10, 10)
screen.select_graphic_rendition(4)
screen.save_cursor()
screen.select_graphic_rendition(24)
assert screen.cursor.attrs == screen.default_char
screen.restore_cursor()
assert screen.cursor.attrs != screen.default_char
assert screen.cursor.attrs == Char(" ", underscore=True)
def test_restore_cursor_out_of_bounds():
screen = Screen(10, 10)
# a) origin mode off.
screen.cursor_position(5, 5)
screen.save_cursor()
screen.resize(3, 3)
screen.reset()
screen.restore_cursor()
assert (screen.cursor.y, screen.cursor.x) == (2, 2)
# b) origin mode is on.
screen.resize(10, 10)
screen.cursor_position(8, 8)
screen.save_cursor()
screen.resize(5, 5)
screen.reset()
screen.set_mode(mo.DECOM)
screen.set_margins(2, 3)
screen.restore_cursor()
assert (screen.cursor.y, screen.cursor.x) == (2, 4)
def test_restore_cursor_out_of_bounds():
screen = Screen(10, 10)
# a) origin mode off.
screen.cursor_position(5, 5)
screen.save_cursor()
screen.resize(3, 3)
screen.reset()
screen.restore_cursor()
assert (screen.cursor.y, screen.cursor.x) == (2, 2)
# b) origin mode is on.
screen.resize(10, 10)
screen.cursor_position(8, 8)
screen.save_cursor()
screen.resize(5, 5)
screen.reset()
screen.set_mode(mo.DECOM)
screen.set_margins(2, 3)
screen.restore_cursor()
assert (screen.cursor.y, screen.cursor.x) == (2, 4)
def test_draw():
# ``DECAWM`` on (default).
screen = Screen(3, 3)
assert mo.DECAWM in screen.mode
map(screen.draw, "abc")
assert screen.display == ["abc", " ", " "]
assert (screen.cursor.y, screen.cursor.x) == (0, 3)
# ... one` more character -- now we got a linefeed!
screen.draw("a")
assert (screen.cursor.y, screen.cursor.x) == (1, 1)
# ``DECAWM`` is off.
screen = Screen(3, 3)
screen.reset_mode(mo.DECAWM)
map(screen.draw, "abc")
assert screen.display == ["abc", " ", " "]
assert (screen.cursor.y, screen.cursor.x) == (0, 3)
# No linefeed is issued on the end of the line ...
screen.draw("a")
assert screen.display == ["aba", " ", " "]
assert (screen.cursor.y, screen.cursor.x) == (0, 3)
# ``IRM`` mode is on, expecting new characters to move the old ones
# instead of replacing them.
screen.set_mode(mo.IRM)
screen.cursor_position()
screen.draw("x")
assert screen.display == ["xab", " ", " "]
screen.cursor_position()
screen.draw("y")
assert screen.display == ["yxa", " ", " "]
def test_draw():
# ``DECAWM`` on (default).
screen = Screen(3, 3)
assert mo.DECAWM in screen.mode
map(screen.draw, "abc")
assert screen.display == ["abc", " ", " "]
assert (screen.cursor.y, screen.cursor.x) == (0, 3)
# ... one` more character -- now we got a linefeed!
screen.draw("a")
assert (screen.cursor.y, screen.cursor.x) == (1, 1)
# ``DECAWM`` is off.
screen = Screen(3, 3)
screen.reset_mode(mo.DECAWM)
map(screen.draw, "abc")
assert screen.display == ["abc", " ", " "]
assert (screen.cursor.y, screen.cursor.x) == (0, 3)
# No linefeed is issued on the end of the line ...
screen.draw("a")
assert screen.display == ["aba", " ", " "]
assert (screen.cursor.y, screen.cursor.x) == (0, 3)
# ``IRM`` mode is on, expecting new characters to move the old ones
# instead of replacing them.
screen.set_mode(mo.IRM)
screen.cursor_position()
screen.draw("x")
assert screen.display == ["xab", " ", " "]
screen.cursor_position()
screen.draw("y")
assert screen.display == ["yxa", " ", " "]
