public function testOnDocument()
{
$document = new Document();
$document->setPath('index.html');
$document->setBody(<<<EOL
<h1>Hello</h1>
<h2>TLDR</h2>
EOL
);
$event = new CarewEvent($document);
$toc = new Toc();
$toc->onDocument($event);
$bodyExpected = <<<EOL
<h1 id="hello">Hello<a href="#hello" class="anchor">#</a></h1>
<h2 id="tldr">TLDR<a href="#tldr" class="anchor">#</a></h2>
EOL;
$this->assertSame($bodyExpected, $document->getBody());
$tocExpected = array(1 => array('title' => 'Hello', 'id' => 'hello', 'children' => array(1 => array('title' => 'TLDR', 'id' => 'tldr', 'children' => array()))));
$this->assertSame($tocExpected, $document->getToc());
}