/**
  * Tears down the fixture, for example, closes a network connection.
  * This method is called after a test is executed.
  */
 protected function tearDown()
 {
     // Keep everything clean by removing everything from the address book.
     $this->object->RemoveAllContactsFromAddressBook($this->addressBookId);
 }
<?php

use Philipnorton42\DotMailer\DotMailer;
require_once __DIR__ . '/../vendor/autoload.php';
try {
    $dotmailer = new DotMailer('', '');
} catch (\Exception $e) {
    die('DotMailer class not found' . PHP_EOL);
}
$addressBooks = $dotmailer->ListAddressBooks();
foreach ($addressBooks as $book) {
    print $book->ID . ' => ' . $book->Name . PHP_EOL;
}