public function testFollowPlaylist()
 {
     $options = array('public' => false);
     $expected = json_encode($options);
     $headers = array('Authorization' => 'Bearer ' . $this->accessToken, 'Content-Type' => 'application/json');
     $return = array('status' => 200);
     $stub = $this->setupStub('PUT', '/v1/users/mcgurk/playlists/0UZ0Ll4HJHR7yvURYbHJe9/followers', $expected, $headers, $return);
     $api = new SpotifyWebAPI\SpotifyWebAPI($stub);
     $api->setAccessToken($this->accessToken);
     $response = $api->followPlaylist('mcgurk', '0UZ0Ll4HJHR7yvURYbHJe9', $options);
     $this->assertTrue($response);
 }