return lc($digest);
}
+# compare two perl variables recursively, so this works for scalars, nested
+# hashes and nested arrays
+sub is_deeply {
+ my ($a, $b) = @_;
+
+ return 0 if defined($a) != defined($b);
+ return 1 if !defined($a); # both are undef
+
+ my ($ref_a, $ref_b) = (ref($a), ref($b));
+
+ # scalar case
+ return 0 if !$ref_a && !$ref_b && "$a" ne "$b";
+
+ # different types, ok because ref never returns undef, only empty string
+ return 0 if $ref_a ne $ref_b;
+
+ if ($ref_a eq 'HASH') {
+ return 0 if scalar(keys $a->%*) != scalar(keys $b->%*);
+ for my $opt (keys $a->%*) {
+ return 0 if !is_deeply($a->{$opt}, $b->{$opt});
+ }
+ } elsif ($ref_a eq 'ARRAY') {
+ return 0 if scalar($a->@*) != scalar($b->@*);
+ for (my $i = 0; $i < $a->@*; $i++) {
+ return 0 if !is_deeply($a->[$i], $b->[$i]);
+ }
+ }
+
+ return 1;
+}
+
1;