Issue 6437 - Apply :-abp-contains() to matching roots only

test/browser/elemHideEmulation.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 498 matching lines @@
 }
 
 exports.testPseudoClassContainsText = function(test)
 {
   let expectations = {
     parent: true,
     middle: true,
     inside: true,
     sibling: false,
     sibling2: true,
-    toHide: false
+    toHide: true
   };
   runTestPseudoClassContains(
     test, "#parent div:-abp-contains(to hide)", expectations);
 };
 
 exports.testPseudoClassContainsRegexp = function(test)
 {
   let expectations = {
     parent: true,
     middle: true,
     inside: true,
     sibling: false,
     sibling2: true,
-    toHide: false
+    toHide: true
   };
   runTestPseudoClassContains(
     test, "#parent div:-abp-contains(/to\\shide/)", expectations);
 };
 
 exports.testPseudoClassContainsRegexpIFlag = function(test)
 {
   let expectations = {
     parent: true,
     middle: true,
     inside: true,
     sibling: false,
     sibling2: true,
-    toHide: false
+    toHide: true
   };
   runTestPseudoClassContains(
     test, "#parent div:-abp-contains(/to\\sHide/i)", expectations);
 };
 
 exports.testPseudoClassContainsWildcardNoMatch = function(test)
 {
   let expectations = {
     parent: true,
     middle: true,
@@ skipping 134 matching lines @@
     expectVisible(test, child2);
     return timeout(REFRESH_INTERVAL);
   }).then(() =>
   {
     expectHidden(test, parent);
     expectVisible(test, child);
     expectHidden(test, sibling);
     expectVisible(test, child2);
   }).catch(unexpectedError.bind(test)).then(() => test.done());
 };