public function testConstructor()
 {
     $options = array('site_key' => $this->siteKey, 'secret_key' => $this->secretKey, 'theme' => 'foo');
     $_captcha = new ReCaptcha($options);
     $this->assertSame($options['site_key'], $_captcha->getSiteKey());
     $this->assertSame($options['secret_key'], $_captcha->getSecretKey());
     $this->assertSame($options['theme'], $_captcha->getTheme());
 }