| Index: test/filterClasses.js | 
| diff --git a/test/filterClasses.js b/test/filterClasses.js | 
| index a25d7673d0c44e0c3fbf771d400644ef83d00e16..03a46b3c13dee9cb1de49d16632e80d1399c50ce 100644 | 
| --- a/test/filterClasses.js | 
| +++ b/test/filterClasses.js | 
| @@ -17,11 +17,14 @@ | 
|  | 
| "use strict"; | 
|  | 
| +let {createSandbox} = require("common"); | 
| +let sandboxedRequire = createSandbox(); | 
| + | 
| let { | 
| Filter, InvalidFilter, CommentFilter, ActiveFilter, RegExpFilter, | 
| BlockingFilter, WhitelistFilter, ElemHideBase, ElemHideFilter, | 
| ElemHideException, CSSPropertyFilter | 
| -} = require("../lib/filterClasses"); | 
| +} = sandboxedRequire("filterClasses"); | 
|  | 
| function serializeFilter(filter) | 
| { | 
| @@ -244,7 +247,7 @@ exports.testFiltersWithState  = function(test) | 
| test.done(); | 
| }; | 
|  | 
| -let t = RegExpFilter.typeMap; | 
| +let t = require("filterClasses").RegExpFilter.typeMap; | 
| let defaultTypes = 0x7FFFFFFF & ~(t.ELEMHIDE | t.DOCUMENT | t.POPUP | t.GENERICHIDE | t.GENERICBLOCK); | 
|  | 
| exports.testSpecialCharacters = function(test) | 
|  |