Issue 4795 - Use modern JavaScript syntax

qunit/tests/url.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/>.
  */
 
+"use strict";
 
-(function()
 {
-  var url = require("url");
-  var getDecodedHostname = url.getDecodedHostname;
-  var extractHostFromFrame = url.extractHostFromFrame;
-  var stringifyURL = url.stringifyURL;
-  var isThirdParty = url.isThirdParty;
+  let {getDecodedHostname,
+       extractHostFromFrame,
+       stringifyURL,
+       isThirdParty} = require("url");
 
   module("URL/host tools");
 
-  test("Extracting hostname from URL", function()
+  test("Extracting hostname from URL", () =>
   {
     function testURLHostname(url, expectedHostname, message)
     {
       equal(getDecodedHostname(new URL(url)), expectedHostname, message);
     }
 
     testURLHostname("http://example.com/foo", "example.com", "with path");
     testURLHostname("http://example.com/?foo=bar", "example.com", "with query");
     testURLHostname("http://example.com/#top", "example.com", "with hash");
     testURLHostname("http://example.com:8080/", "example.com", "with port");
     testURLHostname("http://user:password@example.com/", "example.com", "with auth credentials");
     testURLHostname("http://xn--f-1gaa.com/", "f\u00f6\u00f6.com", "with punycode");
     testURLHostname("about:blank", "", "about:blank");
     testURLHostname("data:text/plain,foo", "", "data: URL");
     testURLHostname("ftp://example.com/", "example.com", "ftp: URL");
     testURLHostname("http://1.2.3.4:8000/", "1.2.3.4", "IPv4 address");
     testURLHostname("http://[2001:db8:85a3::8a2e:370:7334]/", "[2001:db8:85a3::8a2e:370:7334]", "IPv6 address");
   });
 
-  test("Extracting hostname from frame", function()
+  test("Extracting hostname from frame", () =>
   {
     function testFrameHostname(hierarchy, expectedHostname, message)
     {
-      var frame = null;
+      let frame = null;
 
-      for (var i = 0; i < hierarchy.length; i++)
-        frame = {parent: frame, url: new URL(hierarchy[i])};
+      for (let url of hierarchy)
+        frame = {parent: frame, url: new URL(url)};
 
       equal(extractHostFromFrame(frame), expectedHostname, message);
     }
 
     testFrameHostname(["http://example.com/"], "example.com", "single frame");
     testFrameHostname(["http://example.com/", "http://example.org/"], "example.org", "with parent frame");
     testFrameHostname(["http://example.com/", "data:text/plain,foo"], "example.com", "data: URL, hostname in parent");
     testFrameHostname(["http://example.com/", "about:blank", "about:blank"], "example.com", "about:blank, hostname in ancestor");
     testFrameHostname(["about:blank", "about:blank"], "", "about:blank, no hostname");
     testFrameHostname(["http://xn--f-1gaa.com/"], "f\u00f6\u00f6.com", "with punycode");
   });
 
-  test("Stringifying URLs", function()
+  test("Stringifying URLs", () =>
   {
     function testNormalizedURL(url, expectedURL, message)
     {
       equal(stringifyURL(new URL(url)), expectedURL, message);
     }
 
     function testPreservedURL(url, message)
     {
       testNormalizedURL(url, url, message);
     }
 
     testPreservedURL("http://example.com/foo", "includes path");
     testPreservedURL("http://example.com/?foo=bar", "includes query");
     testPreservedURL("http://example.com:8080/", "includes port");
     testPreservedURL("http://example.com/?", "with empty query string");
     testNormalizedURL("http://example.com/#top","http://example.com/", "stripped hash");
     testNormalizedURL("http://example.com/#top?", "http://example.com/", "stripped hash with trailing question mark");
     testNormalizedURL("http://xn--f-1gaa.com/","http://f\u00f6\u00f6.com/", "decoded punycode");
     testPreservedURL("about:blank", "about:blank");
     testPreservedURL("data:text/plain,foo", "data: URL");
   });
 
-  test("Third-party checks", function()
+  test("Third-party checks", () =>
   {
     function hostnameToURL(hostname)
     {
       return new URL("http://" + hostname);
     }
 
     function testThirdParty(requestHost, documentHost, expected, message)
     {
       equal(
         isThirdParty(
@@ skipping 24 matching lines @@
     testThirdParty("1.0xff.3.4", "1.0xff.3.4", false, "same IPv4 address with hexadecimal octet isn't third-party");
     testThirdParty("1.0xff.1.1", "2.0xff.1.1", true, "different IPv4 address with hexadecimal octet is third-party");
     testThirdParty("0xff.example.com", "example.com", false, "domain starts like a hexadecimal IPv4 address but isn't one");
     testThirdParty("[2001:db8:85a3::8a2e:370:7334]", "[2001:db8:85a3::8a2e:370:7334]", false, "same IPv6 address isn't third-party");
     testThirdParty("[2001:db8:85a3::8a2e:370:7334]", "[5001:db8:85a3::8a2e:370:7334]", true, "different IPv6 address is third-party");
     testThirdParty("[::ffff:192.0.2.128]", "[::ffff:192.0.2.128]", false, "same IPv4-mapped IPv6 address isn't third-party");
     testThirdParty("[::ffff:192.0.2.128]", "[::ffff:192.1.2.128]", true, "different IPv4-mapped IPv6 address is third-party");
     testThirdParty("xn--f-1gaa.com", "f\u00f6\u00f6.com", false, "same IDN isn't third-party");
     testThirdParty("example.com..", "example.com....", false, "traling dots are ignored");
   });
-})();
+}