public function testGetLibraryWebroot() {
		$this->assertTrue(is_dir(Media::webroot(true)));
		$this->assertNull(Media::webroot('foobar'));

		Libraries::add('foobar', array('path' => __DIR__, 'webroot' => __DIR__));
		$this->assertEqual(__DIR__, Media::webroot('foobar'));
		Libraries::remove('foobar');
	}