#!/usr/bin/env perl
use strict;
use warnings;
use Test::More;
BEGIN {
use_ok 'MCE::Grep';
}
## preparation
my $in_file = MCE->tmp_dir . '/input.txt';
my $fh_data = \*DATA;
open my $fh, '>', $in_file;
binmode $fh;
print {$fh} "1\n2\n3\n4\n5\n6\n7\n8\n9\n";
close $fh;
my @a;
MCE::Grep::init {
max_workers => 2
};
sub _task { chomp; $_ % 3 == 0 }
## mce_grep can take a code block, e.g: mce_grep { code } ( 1..9 )
## below, workers will persist between runs
@a = mce_grep \&_task, ( 1..9 );
is( join('', @a), '369', 'check results for array' );
@a = mce_grep \&_task, [ 1..9 ];
is( join('', @a), '369', 'check results for array ref' );
@a = mce_grep_f \&_task, $in_file;
is( join('', @a), '369', 'check results for path' );
@a = mce_grep_f \&_task, $fh_data;
is( join('', @a), '369', 'check results for glob' );
@a = mce_grep_s \&_task, 1, 9;
is( join('', @a), '369', 'check results for sequence' );
MCE::Grep::finish;
## cleanup
unlink $in_file;
done_testing;
__DATA__
1
2
3
4
5
6
7
8
9