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#!/usr/bin/perl
use v5.14;
use warnings;
use Test2::V0;
use List::Keywords 'none';
# Basic true/false testing
ok( !(none { $_ > 10 } 1 .. 20), 'list contains a value above ten' );
ok( (none { $_ > 10 } 1 .. 9), 'list does not contain a value above ten' );
# none empty list is true
{
my $invoked;
my $ret = none { $invoked++ } ();
ok( $ret, 'none on empty list is true' );
ok( !$invoked, 'none on empty list did not invoke block' );
}
# none failure yields scalar in list context
{
my @ret;
@ret = none { $_ > 10 } 1 .. 9;
ok( !!@ret, 'none nothing yielded false in list context' );
@ret = none { $_ > 10 } ();
ok( !!@ret, 'none nothing yielded false in list context on empty input' );
}
done_testing;
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