Issue 5159 - Expose collapse property for BlockingFilter

test/filterClasses.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 217 matching lines @@
   }
 
   test.done();
 };
 
 exports.testSerialize = function(test)
 {
   // Comment
   let filter = Filter.fromText("! serialize");
   test.equal(filter.serialize(), "[Filter]\ntext=! serialize\n");
+  test.equal(filter.collapse, undefined);
   filter.delete();
 
   // Blocking filter
   filter = Filter.fromText("serialize");
   test.equal(filter.serialize(), "[Filter]\ntext=serialize\n");
   filter.disabled = true;
   test.equal(filter.serialize(), "[Filter]\ntext=serialize\ndisabled=true\n");
   filter.disabled = false;
   filter.hitCount = 10;
   filter.lastHit = 12;
   test.equal(filter.serialize(), "[Filter]\ntext=serialize\nhitCount=10\nlastHit=12\n");
+  test.ok(filter.collapse);
   filter.delete();
 
   // Invalid filter
   filter = Filter.fromText("serialize$foobar");
   test.equal(filter.serialize(), "[Filter]\ntext=serialize$foobar\n");
   filter.delete();
 
   // Element hiding filter
   filter = Filter.fromText("example.com##serialize");
   test.equal(filter.serialize(), "[Filter]\ntext=example.com##serialize\n");
@@ skipping 170 matching lines @@
     filter.hitCount++;
   }, ["filter.hitCount", "foobar"], "Increasing filter hit counts");
   checkNotifications(() =>
   {
     filter.hitCount = 0;
   }, ["filter.hitCount", "foobar"], "Resetting filter hit counts");
 
   filter.delete();
   test.done();
 };