melody gist integration test

test.php

<?php
<<<CONFIG
packages:
    - "twig/twig: 3.3.2"
CONFIG;

echo "----------------------------------\n";

$twig = new Twig\Environment(new Twig\Loader\ArrayLoader(array(
    'my_template' => 'Hello {{ name }}',
)));

echo $twig->render('my_template', array('name' => 'greg'));

echo "\n----------------------------------\n";