Fix editor tests (#855)

Author: nightskylark

testing/tests/DevExpress.ui.widgets.editors/dropDownEditor.tests.js

@@ -590,7 +590,7 @@ QUnit.module("keyboard navigation inside popup", {
 
         this.$input = this.$element.find(".dx-texteditor-input");
 
-        var $popupWrapper = this.instance._popup._wrapper();
+        var $popupWrapper = $(this.instance._popup._wrapper());
         this.$doneButton = $popupWrapper.find(".dx-popup-done.dx-button");
         this.$cancelButton = $popupWrapper.find(".dx-popup-cancel.dx-button");
 
@@ -601,7 +601,7 @@ QUnit.module("keyboard navigation inside popup", {
                 eventConfig.shiftKey = shiftKey;
             }
 
-            $element
+            $($element)
                 .focus()
                 .trigger($.Event("keydown", eventConfig));
         };

testing/tests/DevExpress.ui.widgets.editors/tagBox.tests.js

@@ -1683,7 +1683,7 @@ QUnit.testInActiveWindow("the input should be focused on the 'shift+tab' key pre
         opened: true
     });
 
-    var $selectAllCheckbox = this.instance._popup._wrapper().find(".dx-list-select-all-checkbox");
+    var $selectAllCheckbox = $(this.instance._popup._wrapper()).find(".dx-list-select-all-checkbox");
 
     $selectAllCheckbox
         .focus()
@@ -1707,7 +1707,7 @@ QUnit.testInActiveWindow("popup should be closed on the 'esc' key press if the s
         opened: true
     });
 
-    var $selectAllCheckbox = this.instance._popup._wrapper().find(".dx-list-select-all-checkbox");
+    var $selectAllCheckbox = $(this.instance._popup._wrapper()).find(".dx-list-select-all-checkbox");
 
     $selectAllCheckbox
         .focus()