/**
  * Test retry policy - retryN
  */
 public function testRetryN()
 {
     $this->_executedRetries = 0;
     $this->_exceptionCount = 9;
     $policy = Zend_Service_WindowsAzure_RetryPolicy_RetryPolicyAbstract::retryN(10, 100);
     $retries = $policy->execute(array($this, '_countRetriesAndThrowExceptions'));
     $this->assertEquals(10, $retries);
 }

 protected function createStorageInstance()
 {
     $storageClient = null;
     if (TESTS_ZEND_SERVICE_WINDOWSAZURE_SESSIONHANDLER_RUNONPROD) {
         $storageClient = new Zend_Service_WindowsAzure_Storage_Table(TESTS_ZEND_SERVICE_WINDOWSAZURE_TABLE_HOST_PROD, TESTS_ZEND_SERVICE_WINDOWSAZURE_STORAGE_ACCOUNT_PROD, TESTS_ZEND_SERVICE_WINDOWSAZURE_STORAGE_KEY_PROD, false, Zend_Service_WindowsAzure_RetryPolicy_RetryPolicyAbstract::retryN(10, 250));
     } else {
         $storageClient = new Zend_Service_WindowsAzure_Storage_Table(TESTS_ZEND_SERVICE_WINDOWSAZURE_TABLE_HOST_DEV, TESTS_ZEND_SERVICE_WINDOWSAZURE_STORAGE_ACCOUNT_DEV, TESTS_ZEND_SERVICE_WINDOWSAZURE_STORAGE_KEY_DEV, true, Zend_Service_WindowsAzure_RetryPolicy_RetryPolicyAbstract::retryN(10, 250));
     }
     if (TESTS_ZEND_SERVICE_WINDOWSAZURE_STORAGE_USEPROXY) {
         $storageClient->setProxy(TESTS_ZEND_SERVICE_WINDOWSAZURE_STORAGE_USEPROXY, TESTS_ZEND_SERVICE_WINDOWSAZURE_STORAGE_PROXY, TESTS_ZEND_SERVICE_WINDOWSAZURE_STORAGE_PROXY_PORT, TESTS_ZEND_SERVICE_WINDOWSAZURE_STORAGE_PROXY_CREDENTIALS);
     }
     return $storageClient;
 }

 protected function createStorageInstance()
 {
     return new Zend_Service_WindowsAzure_Storage_Blob(TESTS_ZEND_SERVICE_WINDOWSAZURE_BLOB_HOST_PROD, TESTS_ZEND_SERVICE_WINDOWSAZURE_STORAGE_ACCOUNT_PROD, TESTS_ZEND_SERVICE_WINDOWSAZURE_STORAGE_KEY_PROD, false, Zend_Service_WindowsAzure_RetryPolicy_RetryPolicyAbstract::retryN(10, 250));
 }

 /**
  * Perform request using Zend_Http_Client channel
  *
  * @param string $path Path
  * @param string $queryString Query string
  * @param string $httpVerb HTTP verb the request will use
  * @param array $headers x-ms headers to add
  * @param boolean $forTableStorage Is the request for table storage?
  * @param mixed $rawData Optional RAW HTTP data to be sent over the wire
  * @param string $resourceType Resource type
  * @param string $requiredPermission Required permission
  * @return Zend_Http_Response
  */
 protected function _performRequest($path = '/', $queryString = '', $httpVerb = Zend_Http_Client::GET, $headers = array(), $forTableStorage = false, $rawData = null, $resourceType = Zend_Service_WindowsAzure_Storage::RESOURCE_UNKNOWN, $requiredPermission = Zend_Service_WindowsAzure_Credentials_CredentialsAbstract::PERMISSION_READ)
 {
     // Clean path
     if (strpos($path, '/') !== 0) {
         $path = '/' . $path;
     }
     // Clean headers
     if (is_null($headers)) {
         $headers = array();
     }
     // Ensure cUrl will also work correctly:
     //  - disable Content-Type if required
     //  - disable Expect: 100 Continue
     if (!isset($headers["Content-Type"])) {
         $headers["Content-Type"] = '';
     }
     $headers["Expect"] = '';
     // Add version header
     $headers['x-ms-version'] = $this->_apiVersion;
     // URL encoding
     $path = self::urlencode($path);
     $queryString = self::urlencode($queryString);
     // Generate URL and sign request
     $requestUrl = $this->_credentials->signRequestUrl($this->getBaseUrl() . $path . $queryString, $resourceType, $requiredPermission);
     $requestHeaders = $this->_credentials->signRequestHeaders($httpVerb, $path, $queryString, $headers, $forTableStorage, $resourceType, $requiredPermission, $rawData);
     // Prepare request
     $this->_httpClientChannel->resetParameters(true);
     $this->_httpClientChannel->setUri($requestUrl);
     $this->_httpClientChannel->setHeaders($requestHeaders);
     $this->_httpClientChannel->setRawData($rawData);
     // Execute request
     $response = $this->_retryPolicy->execute(array($this->_httpClientChannel, 'request'), array($httpVerb));
     return $response;
 }

 /**
  * Perform request using Zend_Http_Client channel
  *
  * @param string $path Path
  * @param string $queryString Query string
  * @param string $httpVerb HTTP verb the request will use
  * @param array $headers x-ms headers to add
  * @param mixed $rawData Optional RAW HTTP data to be sent over the wire
  * @return Zend_Http_Response
  */
 protected function _performRequest($path = '/', $queryString = '', $httpVerb = Zend_Http_Client::GET, $headers = array(), $rawData = null)
 {
     // Clean path
     if (strpos($path, '/') !== 0) {
         $path = '/' . $path;
     }
     // Clean headers
     if (is_null($headers)) {
         $headers = array();
     }
     // Ensure cUrl will also work correctly:
     //  - disable Content-Type if required
     //  - disable Expect: 100 Continue
     if (!isset($headers["Content-Type"])) {
         $headers["Content-Type"] = '';
     }
     //$headers["Expect"] = '';
     // Add version header
     $headers['x-ms-version'] = $this->_apiVersion;
     // URL encoding
     $path = self::urlencode($path);
     $queryString = self::urlencode($queryString);
     // Generate URL and sign request
     $requestUrl = $this->getBaseUrl() . $path . $queryString;
     $requestHeaders = $headers;
     // Prepare request
     $this->_httpClientChannel->resetParameters(true);
     $this->_httpClientChannel->setUri($requestUrl);
     $this->_httpClientChannel->setHeaders($requestHeaders);
     $this->_httpClientChannel->setRawData($rawData);
     // Execute request
     $response = $this->_retryPolicy->execute(array($this->_httpClientChannel, 'request'), array($httpVerb));
     // Store request id
     $this->_lastRequestId = $response->getHeader('x-ms-request-id');
     return $response;
 }