def test_is_alt_screen():
console = Console(force_terminal=True)
if console.legacy_windows:
return
assert not console.is_alt_screen
with console.screen():
assert console.is_alt_screen
assert not console.is_alt_screen
def test_screen():
console = Console(color_system=None, force_terminal=True, force_interactive=True)
with console.capture() as capture:
with console.screen():
console.print("Don't panic")
expected = "\x1b[?1049h\x1b[H\x1b[?25lDon't panic\n\x1b[?1049l\x1b[?25h"
result = capture.get()
print(repr(result))
assert result == expected
def test_screen_update():
console = Console(width=20, height=4, color_system="truecolor", force_terminal=True)
with console.capture() as capture:
with console.screen() as screen:
screen.update("foo", style="blue")
screen.update("bar")
screen.update()
result = capture.get()
print(repr(result))
expected = "\x1b[?1049h\x1b[H\x1b[?25l\x1b[34mfoo\x1b[0m\x1b[34m \x1b[0m\n\x1b[34m \x1b[0m\n\x1b[34m \x1b[0m\n\x1b[34m \x1b[0m\x1b[34mbar\x1b[0m\x1b[34m \x1b[0m\n\x1b[34m \x1b[0m\n\x1b[34m \x1b[0m\n\x1b[34m \x1b[0m\x1b[34mbar\x1b[0m\x1b[34m \x1b[0m\n\x1b[34m \x1b[0m\n\x1b[34m \x1b[0m\n\x1b[34m \x1b[0m\x1b[?1049l\x1b[?25h"
assert result == expected
def test_update_screen():
console = Console(force_terminal=True, width=20, height=5)
if console.legacy_windows:
return
with pytest.raises(errors.NoAltScreen):
console.update_screen("foo")
console.begin_capture()
with console.screen():
console.update_screen("foo")
console.update_screen("bar", region=Region(2, 3, 8, 4))
result = console.end_capture()
print(repr(result))
expected = "\x1b[?1049h\x1b[H\x1b[?25l\x1b[1;1Hfoo \x1b[2;1H \x1b[3;1H \x1b[4;1H \x1b[5;1H \x1b[4;3Hbar \x1b[5;3H \x1b[6;3H \x1b[7;3H \x1b[?1049l\x1b[?25h"
assert result == expected
