[ISBN Verifier] Error in tests that check if the `X` character is only the verification digit

Exercism Building Exercism
, ,
21

@oxe-b thanks for your precision. I’ll change the PR to only keep the tests with the ISBN 3-598-2X507-9 and 3-598-2X507-5.

1 Like
22

This PR is now merged.

3 Likes