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use Test::More;
use strict; use warnings FATAL => 'all';
# also see t/05_typed/tuples.t
use List::Objects::WithUtils 'array';
my $arr = array( 1 .. 7 );
my $tuples = $arr->tuples(2);
is_deeply
[ $tuples->all ],
[
[ 1, 2 ],
[ 3, 4 ],
[ 5, 6 ],
[ 7 ]
],
'tuples (pairs, odd elements) ok';
my $default = $arr->tuples;
is_deeply [ $default->all ], [ $tuples->all ],
'tuples default 2 ok';
is_deeply
[ array(1 .. 6)->tuples->all ],
[
[ 1, 2 ],
[ 3, 4 ],
[ 5, 6 ]
],
'tuples (pairs, even elements) ok';
is_deeply
[ array(1 .. 6)->tuples(6)->all ],
[ [ 1 .. 6 ] ],
'tuples (all) ok';
ok array->tuples(2)->is_empty, 'empty array tuples ok';
eval {; $arr->tuples(0) };
like $@, qr/positive/, 'tuples < 1 dies ok';
my $withbless = array(1..4)->tuples(2, undef, 'bless');
ok $withbless->count == 2, 'tuples (pairs, blessed) produced 2 tuples';
for (0,1) {
isa_ok $withbless->get($_), 'List::Objects::WithUtils::Array', "tuple ($_)";
}
is_deeply
[ $withbless->all ],
[ [ 1, 2 ], [ 3, 4 ] ],
'tuples (pairs, blessed) ok';
done_testing;
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