trAvis - MANAGER

Edit File: moose_cookbook_roles_recipe3.t

#!/usr/bin/perl -w

use strict;
use Test::More 'no_plan';
use Test::Exception;
$| = 1;

# =begin testing SETUP
{
    # Not in the recipe, but needed for writing tests.
    package Employee;

use Mouse;

has 'name' => (
        is       => 'ro',
        isa      => 'Str',
        required => 1,
    );

has 'work' => (
        is        => 'rw',
        isa       => 'Str',
        predicate => 'has_work',
    );
}

# =begin testing SETUP
{

package MyApp::Role::Job::Manager;

use List::Util qw( first );

use Mouse::Role;

has 'employees' => (
      is  => 'rw',
      isa => 'ArrayRef[Employee]',
  );

sub assign_work {
      my $self = shift;
      my $work = shift;

my $employee = first { !$_->has_work } @{ $self->employees };

die 'All my employees have work to do!' unless $employee;

$employee->work($work);
  }

package main;

my $lisa = Employee->new( name => 'Lisa' );
  MyApp::Role::Job::Manager->meta->apply($lisa);

my $homer = Employee->new( name => 'Homer' );
  my $bart  = Employee->new( name => 'Bart' );
  my $marge = Employee->new( name => 'Marge' );

$lisa->employees( [ $homer, $bart, $marge ] );
  $lisa->assign_work('mow the lawn');
}

# =begin testing
{
{
    my $lisa = Employee->new( name => 'Lisa' );
    MyApp::Role::Job::Manager->meta->apply($lisa);

my $homer = Employee->new( name => 'Homer' );
    my $bart  = Employee->new( name => 'Bart' );
    my $marge = Employee->new( name => 'Marge' );

$lisa->employees( [ $homer, $bart, $marge ] );
    $lisa->assign_work('mow the lawn');

ok( $lisa->does('MyApp::Role::Job::Manager'),
        'lisa now does the manager role' );

is( $homer->work, 'mow the lawn',
        'homer was assigned a task by lisa' );
}
}