use warnings;
use strict;

use Data::Dumper;
use Module::Installed qw(module_installed includes_installed);

my $module = 'PPI';
my $file = '/home/spek/repos/module-installed/t/data/test.pl';

my $statement = module_installed($module)
    ? "is installed"
    : "isn't installed";

print "$module $statement\n\n";

print "Checking includes in file $file\n\n";

my $includes = includes_installed($file);

print Dumper $includes;

##</code><code>##

PPI is installed

Checking includes in file /home/spek/repos/module-installed/t/data/test.pl

$VAR1 = {
          'Carp' => 1,
          'Not::Installed' => 0,
          'strict' => 1,
          'warnings' => 1,
          'Load::Fail' => 0,
          'Exporter' => 1,
          'Data::Dumper' => 1
        };