Luhn: A new test case with odd number of digits

[fahadhk]

A new positive test case with odd number of digits and non-zero first digit.
I have seen a solution in Golang which passes all the tests for Luhn containing odd number of digits and never reads the first digit.
It happens because in all such cases the first digit is zero . I am sure it is also relevant for C#.

[ErikSchierboom]

@fahadhk The test cases that we use in the luhn exercise are generated from shared metadata found in https://github.com/exercism/problem-specifications/blob/main/exercises/luhn/canonical-data.json. Could you submit a PR there instead of to this repo? That way other tracks can also benefit from this new test case and we can just regenerate the exercise.

[ErikSchierboom]

This PR has been open for quite a while. Are you still interested in working on this @fahadhk?

[fahadhk]

@ErikSchierboom Pardon I was inactive for a while. Let me add a PR to the specification repo. I will post it here once it is done.

Thank you for pointing to that place.

Cheers

[fahadhk]

@ErikSchierboom PR#1845

Cheers

[ErikSchierboom]

@fahadhk Thanks! I'll update once that PR is merged.

[ErikSchierboom]

@fahadhk The prob-specs PR has been merged. This PR can now be updated. To do so, please do the following:

• Rebase this branch on the latest main
• Run ./bin/fetch-configlet or pwsh ./bin/fetch-configlet.ps1
• Run ./bin/configlet sync --exercise luhn
• Open a prompt in the generators directory and run dotnet run --exercise luhn
• Commit and push

This should update the luhn exercise's tests and tests.toml file.

[ErikSchierboom]

@fahadhk Small bump. See my comment above for instructions on how to proceed.

[fahadhk]

@ErikSchierboom Sorry I was away. Let me do it now.

I have a updated tests.toml and test file with the test that I proposed by skipping others.

Looking forward to hear from you.

P.S. Meanwhile bumped in to a problem of missing DLL while running Generator on ubuntu 20.04 LTS, solved it using

libgit2/libgit2sharp#1747 (comment)

[fahadhk]

$ ./bin/configlet sync --exercise luhn
Checking exercises...                                                               
Cloning https://github.com/exercism/problem-specifications/... success
[warn] luhn: missing 3 test cases                                                   
       - very long input is valid (b9887ee8-8337-46c5-bc45-3bcab51bc36f)
       - valid luhn with an odd number of digits and non zero first digit (8a7c0e24-85ea-4154-9cf1-c2db90eabc08)
       - non-numeric, non-space char in the middle with a sum that's divisible by 10 isn't allowed (8b72ad26-c8be-49a2-b99c-bcc3bf631b33)
[warn] some exercises are missing test cases

[ErikSchierboom]

Great, thanks!