def test_grip_superset():
g = Grip([], [1, 0, 0])
h = Grip([], [1, 0, 1])
assert g != h
assert h.superset_of(g)
assert not g.superset_of(h)
h = Grip([], [1, 0, 0])
assert g == h
g = Grip([], [0, 0, 0])
h = Grip([], [0, 0, 1])
assert h.superset_of(g)
assert not g.superset_of(h)
g = Grip([P1], [0, 0, 0])
h = Grip([], [0, 0, 1])
assert not h.superset_of(g)
assert not g.superset_of(h)
