diff --git a/LiqPay.php b/LiqPay.php
index c07c2f2..2cd08fb 100644
--- a/LiqPay.php
+++ b/LiqPay.php
@@ -114,6 +114,7 @@ public function api($path, $params = array(), $timeout = 15)
         if ($server_output == NULL) {
             return array('error' => 'Invalid URL or connection timeout');
         }
+        $this->_server_response_code = $this->curlRequester->get_response_code();
         return json_decode($server_output);
     }
 
@@ -292,6 +293,8 @@ public function str_to_sign($str)
 
 class CurlRequester
 {
+    private $_server_response_code;
+
     /**
      * make_curl_request
      * @param $url string
@@ -317,5 +320,9 @@ public function make_curl_request($url, $postfields, $timeout = 15) {
         }
         return $server_output;
     }
+
+    public function get_response_code() {
+        return $this->_server_response_code;
+    }
 }
 
diff --git a/tests/LiqPayTest.php b/tests/LiqPayTest.php
index f36fb58..bd775bc 100644
--- a/tests/LiqPayTest.php
+++ b/tests/LiqPayTest.php
@@ -104,13 +104,18 @@ public function testGetResponseCode()
         $privateKey = 'your_private_key';
         $apiUrl = 'https://api.example.com';
         $liqPay = new LiqPay($publicKey, $privateKey, $apiUrl);
-        
-        // Set a value to _server_response_code for testing
-        $reflection = new ReflectionClass($liqPay);
-        $property = $reflection->getProperty('_server_response_code');
-        $property->setAccessible(true);
-        $property->setValue($liqPay, 200); // Example response code
-        
+
+        // Mock CURL results
+        $mockCurlRequester = $this->createMock(CurlRequester::class);
+        $mockCurlRequester->expects($this->once())
+            ->method('make_curl_request')
+            ->willReturn('{"success":true}');
+        $mockCurlRequester->expects($this->once())
+            ->method('get_response_code')
+            ->willReturn(200);
+        $liqPay->curlRequester = $mockCurlRequester;
+
+        $liqPay->api('/testpath', ['version' => 3, 'action' => 'test']);
         $responseCode = $liqPay->get_response_code();
         
         $this->assertEquals(200, $responseCode);