Thanks for your feedback on LectroTest, and your example with Test::MockObject is a cool use. (BTW, I don't think that calculating the expected score in the Property is an abuse at all.)

If you don't mind a suggestion, you could simplify the data-building portion of your code by letting LectroTest build the more-complicated data structure for you:

#!/usr/bin/perl

use strict;

use Data::Dumper;
use Test::LectroTest trials => 10;

use List::Util qw( reduce );

$Data::Dumper::Terse = 1;

Property {

    ##[ data <- List( Hash( Unit(1)
                          , Int( range=>[50,100], sized=>0 )
                          , length=>1 )
                    , length=>5 )
    ]##

    my @input = map { values %$_ } @$data;
    my $questions = reduce { $a + $b } @input;

    print STDERR Dumper( { data      => $data
                         , input     => \@input
                         , questions => $questions } ), "\n";

    1;  # always passes trials

}, name => "shell property that holds a generator example";
[download]

Also, for the Int generator, you shouldn't specify a range that does not contain zero if the generator is sized. The reason for this rule is that at run time, the intersection of the sizing-guidance range and your given range can be empty, thus making it impossible to generate a valid value. (I have updated the LectroTest::Generator docs to reflect this, and LectroTest will now complain if you try to combine these settings.)

Thanks again for taking the time to provide feedback!

Cheers,
Tom

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