prevented incorrect handling of empty secret key list

Author: sergeimilke

src/PleskX/Api/Operator/SecretKey.php

@@ -65,8 +65,8 @@ public function _get($keyId = null)
         $response = $this->_client->request($packet, \PleskX\Api\Client::RESPONSE_FULL);
 
         $items = [];
-        foreach ($response->xpath('//result') as $xmlResult) {
-            $items[] = new Struct\Info($xmlResult->key_info);
+        foreach ($response->xpath('//result/key_info') as $keyInfo) {
+            $items[] = new Struct\Info($keyInfo);
         }
 
         return $items;

tests/SecretKeyTest.php

@@ -51,4 +51,14 @@ public function testDelete()
         }
     }
 
+    public function testListEmpty()
+    {
+        $keys = $this->_client->secretKey()->getAll();
+        foreach ($keys as $key) {
+            $this->_client->secretKey()->delete($key->key);
+        }
+
+        $keys = $this->_client->secretKey()->getAll();
+        $this->assertEquals(0, count($keys));
+    }
 }