RequestTest::testAccountMalformed PHP Method

    public function testAccountMalformed()
    {
        $clientID = 'INVALID_ID';
        $clientSecret = 'INVALID_SECRET';
        $payload = base64_encode($clientID . ':' . $clientSecret);
        $parameters = ['grant_type' => 'client_credentials'];
        $headers = ['Authorization' => 'Basic ' . $payload];
        $this->setExpectedException('SpotifyWebAPI\\SpotifyWebAPIException');
        $response = $this->request->account('POST', '/api/token', $parameters, $headers);
    }