Issue 4878 - Start using ESLint for adblockpluscore

test/filterStorage_readwrite.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 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
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-/* globals __dirname */
-
 "use strict";
 
-let {createSandbox, unexpectedError} = require("./_common");
+const {createSandbox, unexpectedError} = require("./_common");
 
 let Filter = null;
 let FilterNotifier = null;
 let FilterStorage = null;
 let IO = null;
 let Prefs = null;
 let Subscription = null;
 let ExternalSubscription = null;
 
 exports.setUp = function(callback)
 {
   let sandboxedRequire = createSandbox();
   (
     {Filter} = sandboxedRequire("../lib/filterClasses"),
     {FilterNotifier} = sandboxedRequire("../lib/filterNotifier"),
     {FilterStorage} = sandboxedRequire("../lib/filterStorage"),
     {IO} = sandboxedRequire("./stub-modules/io"),
     {Prefs} = sandboxedRequire("./stub-modules/prefs"),
     {Subscription, ExternalSubscription} = sandboxedRequire("../lib/subscriptionClasses")
   );
 
   FilterStorage.addSubscription(Subscription.fromURL("~fl~"));
   callback();
 };
 
 let testData = new Promise((resolve, reject) =>
 {
-  let fs = require("fs");
-  let path = require("path");
+  const fs = require("fs");
+  const path = require("path");
   let datapath = path.resolve(__dirname, "data", "patterns.ini");
 
   fs.readFile(datapath, "utf-8", (error, data) =>
   {
     if (error)
       reject(error);
     else
       resolve(data);
   });
 });
@@ skipping 223 matching lines @@
     backupFile.lastModifiedTime -= 25 * 60 * 60 * 1000;
     oldModifiedTime = backupFile2.lastModifiedTime;
     return saveFilters(null);
   }).then(() =>
   {
     test.notEqual(backupFile2.lastModifiedTime, oldModifiedTime, "Second backup overwritten if first one is 25 hours old");
 
     test.ok(!backupFile3.exists(), "Third backup not created with patternsbackups = 2");
   }).catch(unexpectedError.bind(test)).then(() => test.done());
 };