Issue 6652 - Implement fast selector lookups for unknown domains

test/elemHide.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 42 matching lines @@
   );
 }
 
 exports.testGetSelectorsForDomain = function(test)
 {
   let addFilter = filterText => ElemHide.add(Filter.fromText(filterText));
   let removeFilter = filterText => ElemHide.remove(Filter.fromText(filterText));
 
   testResult(test, "", []);
 
+  addFilter("##star");

[Manish Jethani, 2018/05/07 16:10:33]

These cases are important, otherwise we might break generic exceptions while
making optimizations of this kind.

+  testResult(test, "", ["star"]);
+  testResult(test, "example.com", ["star"]);
+  addFilter("~special.example.com#@#star");
+  testResult(test, "", []);
+  testResult(test, "example.com", []);
+  testResult(test, "special.example.com", ["star"]);
+  testResult(test, "other.example.com", []);
+
   addFilter("~foo.example.com,example.com##foo");
   testResult(test, "barfoo.example.com", ["foo"]);
   testResult(test, "bar.foo.example.com", []);
   testResult(test, "foo.example.com", []);
   testResult(test, "example.com", ["foo"]);
   testResult(test, "com", []);
   testResult(test, "", []);
 
   addFilter("foo.example.com##turnip");
   testResult(test, "foo.example.com", ["turnip"]);
@@ skipping 165 matching lines @@
 };
 
 exports.testZeroFilterKey = function(test)
 {
   ElemHide.add(Filter.fromText("##test"));
   ElemHide.add(Filter.fromText("foo.com#@#test"));
   testResult(test, "foo.com", []);
   testResult(test, "bar.com", ["test"]);
   test.done();
 };