Issue #82: fix the wrapping if dataset is empty

Author: sibprogrammer

src/Api/Operator.php

@@ -93,6 +93,9 @@ protected function _getItems($structClass, $infoTag, $field = null, $value = nul
             if (!is_null($filter) && !$filter($xmlResult->data->$infoTag)) {
                 continue;
             }
+            if (!isset($xmlResult->data) || !isset($xmlResult->data->$infoTag)) {
+                continue;
+            }
             $items[] = new $structClass($xmlResult->data->$infoTag);
         }
 

tests/SiteTest.php

@@ -104,4 +104,10 @@ public function testGetAll()
         static::$_client->site()->delete('id', $site->id);
         static::$_client->site()->delete('id', $site2->id);
     }
+
+    public function testGetAllWithoutSites()
+    {
+        $sitesInfo = static::$_client->site()->getAll();
+        $this->assertEmpty($sitesInfo);
+    }
 }