MAGETWO-39322: REST tests are failed on mainline

-changed httpClient  from StreamClient to CurlClient
- added wrapper on CurlClient
- fixed tests

Author: arkadiych

Diff for: dev/tests/api-functional/framework/Magento/TestFramework/Authentication/Rest/CurlClient.php

@@ -0,0 +1,27 @@
+<?php
+/**
+ * Copyright © 2015 Magento. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\TestFramework\Authentication\Rest;
+
+use OAuth\Common\Http\Uri\UriInterface;
+
+/**
+ * Custom Client implementation for cURL
+ */
+class CurlClient extends \OAuth\Common\Http\Client\CurlClient
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function retrieveResponse(
+        UriInterface $endpoint,
+        $requestBody,
+        array $extraHeaders = [],
+        $method = 'POST'
+    ) {
+        $this->setCurlParameters([CURLOPT_FAILONERROR => true]);
+        return parent::retrieveResponse($endpoint, $requestBody, $extraHeaders, $method);
+    }
+}

Diff for: dev/tests/api-functional/framework/Magento/TestFramework/Authentication/Rest/OauthClient.php

@@ -40,7 +40,7 @@ public function __construct(
         UriInterface $baseApiUri = null
     ) {
         if (!isset($httpClient)) {
-            $httpClient = new \OAuth\Common\Http\Client\CurlClient();
+            $httpClient = new \Magento\TestFramework\Authentication\Rest\CurlClient();
             $httpClient->setTimeout(self::DEFAULT_TIMEOUT);
         }
         if (!isset($storage)) {

Diff for: dev/tests/api-functional/testsuite/Magento/Webapi/Authentication/RestTest.php

@@ -85,7 +85,7 @@ public function testGetRequestToken()
 
     /**
      * @expectedException \Exception
-     * @expectedExceptionMessage HTTP/1.1 401
+     * @expectedExceptionMessage 401 Unauthorized
      */
     public function testGetRequestTokenExpiredConsumer()
     {
@@ -97,7 +97,7 @@ public function testGetRequestTokenExpiredConsumer()
 
     /**
      * @expectedException \Exception
-     * @expectedExceptionMessage HTTP/1.1 401
+     * @expectedExceptionMessage 401 Unauthorized
      */
     public function testGetRequestTokenInvalidConsumerKey()
     {
@@ -107,7 +107,7 @@ public function testGetRequestTokenInvalidConsumerKey()
 
     /**
      * @expectedException \Exception
-     * @expectedExceptionMessage HTTP/1.1 401
+     * @expectedExceptionMessage 401 Unauthorized
      */
     public function testGetRequestTokenInvalidConsumerSecret()
     {
@@ -141,7 +141,7 @@ public function testGetAccessToken()
 
     /**
      * @expectedException \Exception
-     * @expectedExceptionMessage HTTP/1.1 401
+     * @expectedExceptionMessage 401 Unauthorized
      */
     public function testGetAccessTokenInvalidVerifier()
     {
@@ -156,7 +156,7 @@ public function testGetAccessTokenInvalidVerifier()
 
     /**
      * @expectedException \Exception
-     * @expectedExceptionMessage HTTP/1.1 401
+     * @expectedExceptionMessage 401 Unauthorized
      */
     public function testGetAccessTokenConsumerMismatch()
     {
@@ -176,7 +176,7 @@ public function testGetAccessTokenConsumerMismatch()
 
     /**
      * @expectedException \Exception
-     * @expectedExceptionMessage HTTP/1.1 400
+     * @expectedExceptionMessage 400 Bad Request
      */
     public function testAccessApiInvalidAccessToken()
     {