/**
  * @covers Robo47_Curl::getHeaders
  */
 public function testGetHeaders()
 {
     $curl = new Robo47_Curl('http://example.com', true);
     $curl->setOption(CURLOPT_HEADER, true);
     $curl->exec();
     // @todo some better asserts
     $headers = $curl->getHeaders(true);
     $this->assertInternalType('array', $headers);
     $this->assertGreaterThan(2, count($headers));
     $headers = $curl->getHeaders(false);
     $this->assertInternalType('string', $headers);
     $this->assertGreaterThan(10, strlen($headers));
 }