MAGETWO-51459: [FT] CreateCategoryEntityTest fail when system message about indexers update is displayed

- Fixed MFT test;

Author: nikshostko

dev/tests/functional/tests/app/Magento/Catalog/Test/Block/Adminhtml/Category/Tree.php

@@ -187,6 +187,8 @@ public function assignCategory($parentCategoryName, $childCategoryName)
      */
     public function expandAllCategories()
     {
+        $this->getTemplateBlock()->waitLoader();
         $this->_rootElement->find($this->expandAll)->click();
+        $this->getTemplateBlock()->waitLoader();
     }
 }

dev/tests/functional/tests/app/Magento/Catalog/Test/Block/Product/ProductList/TopToolbar.php

@@ -48,7 +48,7 @@ public function getSelectSortType()
     public function getSortType()
     {
         $content = $this->_rootElement->find($this->sorter)->getText();
-        return explode("\n", $content);
+        return array_values(array_filter(array_map('trim', explode("\n", $content))));
     }
 
     /**

dev/tests/functional/tests/app/Magento/Catalog/Test/TestCase/Category/CreateCategoryEntityTest.xml

@@ -96,6 +96,7 @@
             <constraint name="Magento\Catalog\Test\Constraint\AssertCategoryForAssignedProducts" />
         </variation>
         <variation name="CreateCategoryEntityTestVariation5_Anchor_MostOfFields">
+            <data name="tag" xsi:type="string">test_type:acceptance_test</data>
             <data name="description" xsi:type="string">Create anchor subcategory with all fields</data>
             <data name="addCategory" xsi:type="string">addSubcategory</data>
             <data name="category/data/parent_id/dataset" xsi:type="string">default_category</data>