I was going through the perl maven web resource and from the example about type checking:

examples/mootype/Person.pm

package Person;
use Moo;
 
has name => (is => 'rw');
has age  => (
    is  => 'rw',
    isa => sub {
       die "'$_[0]' is not an integer!"
          if $_[0] !~ /^\d+$/;
    },
);
 
1;

[download]

examples/mootype/student_1.pl

use strict;
use warnings;
use 5.010;
 
use Person;
my $student = Person->new( name => 'Foo', age => 22 );
say $student->name;
say $student->age;
$student->age('young');
say $student->age;

[download]

The expected result stated on the site is that

Foo

22

isa check for "age" failed: 'young' is not an integer! at Person.pm line 8.

But what I get is

isa check for "age" failed: '22' is not an integer! at ~/bin/../lib/Person.pm line 10.

What I am trying to understand is, has something changed and this result (no presence of first two say) is now expected? Or am I somehow doing it different? I am using same code including `use 5.010` but the version of perl I am on is 5.26.1 and I have added following two lines between `use 5.010` and `use Person`

use FindBin qw($Bin);

use lib "$Bin/../lib";

In reply to Moo-Type checking example from Perl Maven: What should be the expected result? by Perl300

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