Recently, in November, we've had reason to clone the Rakudo Test.pm and add an implementation (viklund++) of is_deeply, for testing whether two arrays, pairs or hashes are deeply -- recursively -- equivalent. The method does what you'd think it does, checks the types of its parameters and recurses as necessary.
With the rich set of equality testing operators in Perl 6... <http://www.dlugosz.com/Perl6/web/eqv.html> <http://perlcabal.org/syn/S03.html#Comparison_semantics> ...and given constructs like [+] and <+>, it's actually a bit surprising to me that testing whether [1, [2, 3]] and [1, [2, 4]] are the deeply equivalent isn't more easily expressed than it is. (Or maybe it is easy with current constructs, and I missed it? Can't rule that out.) Couldn't an adverb to one or more of the existing equality operators do this nicely? Something like this: say [1, [2, 3]] eqv [1, [2, 4]] :deeply; // Carl
