diff --git a/bootstrap.php b/bootstrap.php
new file mode 100644
index 0000000..8c24c52
--- /dev/null
+++ b/bootstrap.php
@@ -0,0 +1,13 @@
+<?php
+use Composer\Autoload\ClassLoader;
+use Doctrine\Common\Annotations\AnnotationRegistry;
+
+/**
+ * @var ClassLoader $loader
+ */
+$loader = require __DIR__.'/vendor/autoload.php';
+
+AnnotationRegistry::registerLoader('class_exists');
+
+
+return $loader;
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 30c4b63..ff40e8a 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -11,7 +11,7 @@
     processIsolation            = "true"
     stopOnFailure               = "false"
     syntaxCheck                 = "false"
-    bootstrap                   = "vendor/autoload.php" >
+    bootstrap                   = "bootstrap.php" >
 
     <testsuites>
 
diff --git a/src/AtolOnlineClient/AtolOnline.php b/src/AtolOnlineClient/AtolOnline.php
index 852b7b4..cc2d642 100644
--- a/src/AtolOnlineClient/AtolOnline.php
+++ b/src/AtolOnlineClient/AtolOnline.php
@@ -27,6 +27,10 @@ class AtolOnline
         return new Configuration();
     }
 
+    /**
+     * @param $response
+     * @return OperationResponse
+     */
     public function deserializeOperationResponse($response)
     {
         return $this->serializer->deserialize(
@@ -37,6 +41,10 @@ class AtolOnline
         );
     }
 
+    /**
+     * @param $response
+     * @return OperationResponse
+     */
     public function deserializeCheckStatusResponse($response)
     {
         return $this->serializer->deserialize(
@@ -47,6 +55,10 @@ class AtolOnline
         );
     }
 
+    /**
+     * @param $request
+     * @return mixed|string
+     */
     public function serializeOperationRequest($request)
     {
         return $this->serializer->serialize(
diff --git a/src/AtolOnlineClient/Response/OperationResponse.php b/src/AtolOnlineClient/Response/OperationResponse.php
index 0383623..300ebd4 100644
--- a/src/AtolOnlineClient/Response/OperationResponse.php
+++ b/src/AtolOnlineClient/Response/OperationResponse.php
@@ -8,6 +8,7 @@ class OperationResponse
 {
 
     /**
+     * Поле отсутсвует в ответе а операцию sell с ошибкой начиная с 4й версии
      * @var string
      *
      * @Serializer\Groups({"post", "get"})
@@ -91,8 +92,6 @@ class OperationResponse
      */
     private $callbackUrl;
 
-
-
     /**
      * @return string
      */
diff --git a/tests/AtolOnlineClient/Tests/AtolOnlineTest.php b/tests/AtolOnlineClient/Tests/AtolOnlineTest.php
index 96edf72..ad5249d 100644
--- a/tests/AtolOnlineClient/Tests/AtolOnlineTest.php
+++ b/tests/AtolOnlineClient/Tests/AtolOnlineTest.php
@@ -4,6 +4,7 @@ namespace AtolOnlineClient\Tests;
 
 use AtolOnlineClient\AtolOnline;
 use AtolOnlineClient\Configuration;
+use AtolOnlineClient\Response\OperationResponse;
 use PHPUnit\Framework\TestCase;
 
 class AtolOnlineTest extends TestCase
@@ -14,4 +15,32 @@ class AtolOnlineTest extends TestCase
         $atol = new AtolOnline();
         $this->assertInstanceOf(Configuration::class, $atol->createConfiguration());
     }
-}
\ No newline at end of file
+
+
+    /**
+     * @dataProvider dataSellErrorResponse
+     */
+    public function testDeserializeOperationResponse($file)
+    {
+        $response = file_get_contents(__DIR__ . '/data/'. $file);
+        $atol = new AtolOnline();
+        $operationResponse = $atol->deserializeOperationResponse($response);
+        $this->assertInstanceOf(OperationResponse::class, $operationResponse);
+        $this->assertEquals('12.04.2017 06:15:06', $operationResponse->getTimestamp());
+        $this->assertEquals('fail', $operationResponse->getStatus());
+        $this->assertEquals(30, $operationResponse->getError()->getCode());
+        $this->assertEquals('system', $operationResponse->getError()->getType());
+        $this->assertEquals(
+            ' Передан некорректный UUID : "{0}". Необходимо повторить запрос с корректными данными ',
+            $operationResponse->getError()->getText()
+        );
+    }
+
+    public function dataSellErrorResponse()
+    {
+        return [
+            ['sell_error_response_v3.json'],
+            ['sell_error_response_v3.json']
+        ];
+    }
+}
diff --git a/tests/AtolOnlineClient/Tests/data/sell_error_response_v3.json b/tests/AtolOnlineClient/Tests/data/sell_error_response_v3.json
new file mode 100644
index 0000000..cf0148b
--- /dev/null
+++ b/tests/AtolOnlineClient/Tests/data/sell_error_response_v3.json
@@ -0,0 +1,11 @@
+{
+  "uuid": "4355",
+  "timestamp": "12.04.2017 06:15:06",
+  "status": "fail",
+  "error": {
+    "error_id": "475d6d8d-844d-4d05-aa8b-e3dbdf4defd6",
+    "code": 30,
+    "text": " Передан некорректный UUID : \"{0}\". Необходимо повторить запрос с корректными данными ",
+    "type": "system"
+  }
+}
\ No newline at end of file
diff --git a/tests/AtolOnlineClient/Tests/data/sell_error_response_v4.json b/tests/AtolOnlineClient/Tests/data/sell_error_response_v4.json
new file mode 100644
index 0000000..3a8e123
--- /dev/null
+++ b/tests/AtolOnlineClient/Tests/data/sell_error_response_v4.json
@@ -0,0 +1,10 @@
+{
+  "timestamp": "12.04.2017 06:15:06",
+  "status": "fail",
+  "error": {
+    "error_id": "475d6d8d-844d-4d05-aa8b-e3dbdf4defd6",
+    "code": 30,
+    "text": " Передан некорректный UUID : \"{0}\". Необходимо повторить запрос с корректными данными ",
+    "type": "system"
+  }
+}
\ No newline at end of file