def test_is_close(array):
vector = Vector(array)
point = Point(array)
assert point.size == vector.size
assert point.is_close(vector)
assert vector.is_close(point)
assert point.is_close(array)
assert vector.is_close(array)
def test_add_subtract(arrays):
array_point, array_vector = arrays
point = Point(array_point)
vector = Vector(array_vector)
point_2 = point + array_vector
assert math.isclose(point.distance_point(point_2), vector.norm())
point_3 = point_2 - array_vector
assert point.is_close(point_3)