Luhn: Possibly an incorrect test expectation?

Exercism
1

Is the test case for expecting “059” to be valid incorrect?

This should yield:

f(059) = (0 * 2) + 5 + (9 * 2 - 9)
       = 0 + 5 + 9
       = 14

Which is not evenly divisible by 10 and therefore NOT a valid SIN?

2

Oh wait… nevermind… STARTING FROM THE RIGHT!..

2 Likes