function test_calculateOneQuarterOneDimeOneNickelFourPennies()
 {
     //Arrange
     $test_Change = new Change();
     $input = 44;
     //Act
     $result = $test_Change->calculateChange($input);
     //Assert
     $this->assertEquals(array('pennies' => 4, 'nickels' => 1, 'dimes' => 1, 'quarters' => 1), $result);
 }
<?php

require_once __DIR__ . "/../vendor/autoload.php";
require_once __DIR__ . "/../src/Change.php";
$app = new Silex\Application();
$app->register(new Silex\Provider\TwigServiceProvider(), array('twig.path' => __DIR__ . '/../views'));
$app->get("/", function () use($app) {
    return $app['twig']->render('index.html.twig');
});
$app->get("/calculate_change", function () use($app) {
    $my_Change = new Change();
    $result = $my_Change->calculateChange($_GET['amount']);
    return $app['twig']->render('index.html.twig', array('results' => $result));
});
return $app;