Test that the composer autoloader can find every class given in a file

test.php

<?php

function main()
{
    $classnames = file(realpath(__DIR__) . '/classnames.txt', FILE_IGNORE_NEW_LINES);

    $cnt = 0;

    $loader = require realpath(__DIR__) . '/vendor/autoload.php';

    $total = 0;
    foreach ($classnames as $cn) {
        ++$total;
        try {
            $trimmedCN = ltrim($cn, '\\');

            $file = $loader->findFile($trimmedCN);

            if ($file == false) {
                echo '- ' . $trimmedCN . ' is unknown' . PHP_EOL;
                ++$cnt;
            }
        } catch (\Throwable $e) {
            echo 'Exception thrown when loading ' . $cn . ': (' . get_class($e) . ') ' . $e->getMessage() . PHP_EOL;
        }
    }

    echo 'Unable to find ' . $cnt . ' classes (out of ' . $total . ')' . PHP_EOL;
}

main();