def test_text():
fmt = "Volume: {}"
vol = Volume(fmt=fmt)
vol.volume = -1
vol._update_drawer()
assert vol.text == 'M'
vol.volume = 50
vol._update_drawer()
assert vol.text == '50%'
def test_emoji():
vol = Volume(emoji=True)
vol.volume = -1
vol._update_drawer()
assert vol.text == '\U0001f507'
vol.volume = 29
vol._update_drawer()
assert vol.text == '\U0001f508'
vol.volume = 79
vol._update_drawer()
assert vol.text == '\U0001f509'
vol.volume = 80
vol._update_drawer()
assert vol.text == '\U0001f50a'