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#!/usr/bin/env perl
use strict;
use warnings;
=head1 DESCRIPTION
Test the folding of Lisp lists and alists into perl lists and hashes.
=cut
use Test::More tests => 12;
use Test::Deep;
use Data::SExpression;
my $ds = Data::SExpression->new({fold_lists => 1});
cmp_deeply(
scalar $ds->read('(1 2 3 4)'),
[1, 2, 3, 4],
"Folded a simple list");
cmp_deeply(
scalar $ds->read('(1 2 . 3)'),
methods(
car => 1,
cdr => methods(
car => 2,
cdr => 3)),
"Didn't fold an improper list");
cmp_deeply(
scalar $ds->read('((fg . red) (bg . black) (weight . bold))'),
[
methods(car => \*fg, cdr => \*red),
methods(car => \*bg, cdr => \*black),
methods(car => \*weight, cdr => \*bold)
],
"Read an alist");
# Reported by clkao, 2009-07-08
# Data::SExpression <= 0.37 don't handle the empty list
cmp_deeply(scalar $ds->read('()'), [], "Folded the empty list");
cmp_deeply(scalar $ds->read('(())'), [[]]);
cmp_deeply(scalar $ds->read('(1 ())'), [1, []]);
cmp_deeply(scalar $ds->read('(() ())'), [[],[]]);
$ds = Data::SExpression->new({fold_alists => 1});
cmp_deeply(
scalar $ds->read('(1 2 3 4)'),
[1, 2, 3, 4],
"fold_alists implies fold_lists");
cmp_deeply(
scalar $ds->read('((fg . red) (bg . black) (weight . bold))'),
{
\*fg => \*red,
\*bg => \*black,
\*weight => \*bold
},
"Folded an alist");
cmp_deeply(
scalar $ds->read('((fg red) (bg black) (weight bold))'),
[
[\*fg, \*red],
[\*bg, \*black],
[\*weight, \*bold]
],
"Didn't fold an alist of lists",
);
cmp_deeply(
scalar $ds->read('((fg red) (bg black) (weight bold))'),
[
[\*fg, \*red],
[\*bg, \*black],
[\*weight, \*bold]
],
"Didn't fold an alist of lists",
);
{
no warnings 'once';
cmp_deeply(
scalar $ds->read('(((first name) . Joe) ((last name) . Bob))'),
[
methods(
car => [\*first, \*name],
cdr => \*Joe),
methods(
car => [\*last, \*name],
cdr => \*Bob)
],
"Didn't fold an alist with list keys",
);
}