def test_compatible_to_vector():
v = Vec3(Vec2(1, 2))
assert v == (1, 2, 0)
v = Vec2(Vec3(1, 2, 3))
assert v.x == 1
assert v.y == 2
def test_angle_between_outside_domain():
v1 = Vec3(721.046967113573, 721.0469671135688, 0.0)
v2 = Vec3(-721.0469671135725, -721.0469671135688, 0.0)
angle = v1.angle_between(v2)
assert math.isclose(angle, math.pi)
# reverse order, same result
angle = v2.angle_between(v1)
assert math.isclose(angle, math.pi)
def test_sub_vec3(vec2):
assert vec2(2, 3) - Vec3(7, 7) == (-5, -4)
def test_add_vec3(vec2):
assert vec2(2, 3) + Vec3(7, 7) == (9, 10)