t/07-inherit.t


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#!perl 
package Base;{ 
use strict;
use warnings;
use Tree::Template::Declare builder => '+DAG_Node';
 
sub doc {
    my ($self)=@_;
    tree {
        node {
            name 'doc';
            $self->head();
            $self->body();
        }
    }
}
 
sub head {
    node { name 'title' };
}
 
sub body {
    node {
        name 'content';
        $_[0]->content();
    }
}
 
sub content {
    node { name 'stuff' }
}
 
}
 
package Derived;{ 
use strict;
use warnings;
use Tree::Template::Declare builder => '+DAG_Node';
use base 'Base';
 
sub head {
    node { name 'whatever' };
    $_[0]->SUPER::head();
}
 
sub content {
    node { name 'something' }
}
 
}
 
package main; 
use Test::Most tests=>2,'die';
use strict;
use warnings;
 
my $base_tree=Base->doc();
 
cmp_deeply($base_tree->tree_to_lol(),
           [[re(qr{title})],[[re(qr{stuff})],re(qr{content})],re(qr{doc})],
           'base tree');
 
my $deriv_tree=Derived->doc();
 
cmp_deeply($deriv_tree->tree_to_lol(),
           [[re(qr{whatever})],[re(qr{title})],[[re(qr{something})],re(qr{content})],re(qr{doc})],
           'derived tree');