scrabble-score: add a test for the entire alphabet

[juleskers]

After passing all tests for scrabble-score, I noticed I still didn't have all letters.
Adding them to my implementation at that point of course was trivial, but since there wasn't a test, I wrote one.
Here it is offered for inclusion at the source!

so comments, suggestions, nits and other (constructive) criticism welcome;
This is only my second[1] exercism contribution, so I may need some guidance ;-)

[1] first contribution

[petertseng]

Well I at least think this test is appropriate!

If you think this test would be appropriate all language tracks and not just the Rust track, then it would be great if you would add it to https://github.com/exercism/x-common/blob/master/exercises/scrabble-score/canonical-data.json as well.

One small thing before we merge it for this track! We put the #[ignore] annotation on all tests except the first, as we see in https://github.com/exercism/xrust/blob/master/exercises/hello-world/GETTING_STARTED.md#understanding-test-failures - could you add that to this new test as well?

Thank you for your contribution!

[IanWhitney]

I know that in the canonical tests we've pulled out words that couldn't be valid scrabble words. I'm guessing the same argument will apply here.

Before we update the Rust tests, I think the change should happen in the canonical tests.

[juleskers]

Thanks for the feedback!
I'll make sure to add an #[ignore].

As for the canonical tests, that makes a lot of sense, I wasn't aware there was so much coordination going on between tracks!

As for the alphabet, you are correct that it's not a scrabble word. I would argue that the alphabet itself is the clearest test-case to prove that the entire alphabet is present.
If words are a hard requirement, I could try "the quick brown fox jumps over the lazy dog" (more a sentence than a word, I admit, but maybe in 8 asserts?)

As I mentioned in the other Pull-request, I won't be the fastest to reply, as I do this in my lost minutes on the train.

[petertseng]

It did get added in x-common - don't forget to add the ignore here.

[juleskers]

ignore added! I had it lying around already, but didn't have time/internet to push it.

[petertseng]

Thanks!

(I squashed the two commits before merging since these two commits make the most sense as a single one)