The problem is that Test::Data is built on top of Test::Builder, rather than the older Test module. The plan emitted by Test isn't picked up by Test::Builder hence the error.

I'd recommend dumping Test and using Test::Simple and Test::More instead.

Also you've forgot to quote some of your barewords, and the [ NAME ] syntax is just a notation used in the Test::Data::Array documentation to indicate an optional third argument.

Putting all of this together gives us:

#!/usr/bin/perl -w

use strict;
use Test::Simple tests => 2;
use Test::Data qw(Array);

my @arr = qw( roop  ras dar );
my $a = 'dar';

array_any_ok( $a, @arr, '$a is in @arr' );
array_empty_ok( @arr, '@arr is empty' );
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