public function test_getLastErrorMessage()
 {
     $this->curl->setOption(CURLOPT_URL, 'foo://bar');
     $this->curl->setOption(CURLOPT_RETURNTRANSFER, TRUE);
     $this->curl->execute();
     $this->assertEquals($this->curl->getLastErrorMessage(), 'cURL failed with error #1: Protocol foo not supported or disabled in libcurl');
 }