Fix parallel invocation and also a couple typos per the spellchecker.

[binaryphile]

I noticed that the tests want to be run in parallel since the test function calls #Parallel. However, this only allows the top-level function to run concurrently. Since there are no other top-level functions in the test, there's no effect and the subtests run serially.

While you still want to call #Parallel at the beginning of the function (so you can write other test functions and have them run parallel too), you need to call it in the #Run closure as well. Each subtest then runs in parallel. As it turns out, the tests are so fast that it makes no difference anyway, but I thought you should see the way to get the subtests running as well. Honestly, dropping concurrency is probably simpler, so feel free to do whatever with this PR.

Some refs:

https://gist.github.com/posener/92a55c4cd441fc5e5e85f27bca008721
https://github.com/moricho/tparallel

(Forgive the spelling corrections, my IDE makes the suggestions and I just accepted them.)

[bombsimon]

(Forgive the spelling corrections, my IDE makes the suggestions and I just accepted them.)

Nothing to be sorry for, it's appreciated! 😄