Collection Challenge

example.php

<?php

// before
$registry = [
    'tests/BasicClass.php' => [
        'TestCase',
    ],
    'tests/ComplexClass.php' => [
        'TestCase',
        'RefreshDatabase',
    ],
];

// after
$registry = [
    [
        'TestCase' => 'tests/BasicClass.php',
    ],
    [
        'TestCase' => 'tests/ComplexClass.php',
        'RefreshDatabase' => 'tests/ComplexClass.php',
    ],
];