subtest Pair can use any order

[JJ]

The problem

The original text says that Pairs need to be in a certain order. That's not really true; tested the alternative order and it works anyway.

Solution provided

Changed example to reflect that too.

[coke]

Thanks for the catch! My one concern is that roast doesn't seem to test this variant of subtest. Part of resolving this PR this should include at least a ticket in roast with the omission. Rakudo seems to have added this in rakudo/rakudo@e239f6e, back in 2016, so I think we're safe in assuming it's intentional.

[coke]

Can we show both variants of Pair examples?

[JJ]

Thanks for the catch! My one concern is that roast doesn't seem to test this variant of subtest. Part of resolving this PR this should include at least a ticket in roast with the omission. Rakudo seems to have added this in rakudo/rakudo@e239f6e, back in 2016, so I think we're safe in assuming it's intentional.

Well, Test is not raku so testing should be made in rakudo/rakudo, right?. Which begs the question, is Test tested? I haven't found any subdirectory that seems to do so in the t directory.

[JJ]

Can we show both variants of Pair examples?

Sure.