FWIW: Here my workaround for the afterworld 
use strict;
use warnings;
use Test::More;


my ($pos1,$pos2)=("a","a");


# *** Those should pass


suite(\$pos1,\$pos1);


# *** Those should fail

suite(\$pos1,\$pos2);


done_testing;


# --- my tests for various scalar refs

sub suite {
    my ($ref1,$ref2) = @_;

    is_deeply( scr($ref1),
               scr($ref2),
               "is_deeply");

    is_deeply( scr([$ref1]),
               scr([$ref2]),
               "is_deeply ARRAY");

    is_deeply( scr({t=> $ref1}),
               scr({t=>$ref2}),
               "is_deeply HASH");

    is_deeply( scr({t => [$ref1]}),
               scr({t => [$ref2]}),
               "is_deeply HoA");

    is_deeply( scr({t => [$ref1,$ref1], t2 => [$ref1]}),
               scr({t => [$ref2,$ref2], t2 => [$ref2]}),
               "is_deeply HoA multiple refs");

}


# --- stringify_scalar_refs

sub scr {
    my ($ref) = @_;

    my $reftype = ref $ref;
    if( $reftype eq 'SCALAR') {
        $$ref = "$ref";
    } elsif ( $reftype eq 'ARRAY') {
        for my $el (@$ref) {
            scr($el);
        }
    } elsif ( $reftype eq 'HASH') {
        while (my ($key,$val) = each %$ref ){
            scr($val);
        }
    } else {
        ...                             # dunno yet
    }
    return $ref
}

[download]
-*- mode: compilation; default-directory: "d:/exp/" -*-
Compilation started at Thu Jul 23 22:28:14

C:/Perl_524/bin\perl.exe -w d:/exp/pm_is_deeply.pl 
ok 1 - is_deeply
ok 2 - is_deeply ARRAY
ok 3 - is_deeply HASH
ok 4 - is_deeply HoA
ok 5 - is_deeply HoA multiple refs
not ok 6 - is_deeply
#   Failed test 'is_deeply'
#   at d:/exp/pm_is_deeply.pl line 28.
#     Structures begin differing at:
#     ${     $got} = 'SCALAR(0x26589e8)'
#     ${$expected} = 'SCALAR(0x2650480)'
not ok 7 - is_deeply ARRAY
#   Failed test 'is_deeply ARRAY'
#   at d:/exp/pm_is_deeply.pl line 32.
#     Structures begin differing at:
#     ${     $got->[0]} = 'SCALAR(0x26589e8)'
#     ${$expected->[0]} = 'SCALAR(0x2650480)'
not ok 8 - is_deeply HASH
#   Failed test 'is_deeply HASH'
#   at d:/exp/pm_is_deeply.pl line 36.
#     Structures begin differing at:
#     ${     $got->{t}} = 'SCALAR(0x26589e8)'
#     ${$expected->{t}} = 'SCALAR(0x2650480)'
not ok 9 - is_deeply HoA
#   Failed test 'is_deeply HoA'
#   at d:/exp/pm_is_deeply.pl line 40.
#     Structures begin differing at:
#     ${     $got->{t}[0]} = 'SCALAR(0x26589e8)'
#     ${$expected->{t}[0]} = 'SCALAR(0x2650480)'
not ok 10 - is_deeply HoA multiple refs
#   Failed test 'is_deeply HoA multiple refs'
#   at d:/exp/pm_is_deeply.pl line 44.
#     Structures begin differing at:
#     ${     $got->{t2}[0]} = 'SCALAR(0x26589e8)'
#     ${$expected->{t2}[0]} = 'SCALAR(0x2650480)'
1..10
# Looks like you failed 5 tests of 10.

Compilation exited abnormally with code 5 at Thu Jul 23 22:28:14

[download]

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery

In reply to Re: Test scalar refs (not values) in deeply nested structure (workaround) by LanX
in thread Test scalar refs (not values) in deeply nested structure by LanX

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