def test_find_all(self, display):
touchpads = Touchpad.find_all(display)
assert touchpads
assert all(isinstance(t, Touchpad) for t in touchpads)
assert all('Synaptics Off' in t for t in touchpads)
def test_no_touchpad(display):
assert not list(Touchpad.find_all(display))
with pytest.raises(NoTouchpadError):
Touchpad.find_first(display)
