def test_distance():
'''
Test distance from one point to another.
'''
p1 = Point(0, 1, 2)
p2 = Point(1, 3, 4)
assert p1.distance(p2) == math.sqrt(abs(3 - 1) ** 2 + abs(4 - 2) ** 2)
def test_distance():
'''
Test distance from one point to another.
'''
p1 = Point(0, 1, 2)
p2 = Point(1, 3, 4)
assert p1.distance(p2) == math.sqrt(abs(3 - 1) ** 2 + abs(4 - 2) ** 2)
