Issue 6391 - Allow running the browser unit tests with Firefox

test/runners/firefox_download.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
  * 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/>.
  */
-
-/* eslint-env node */
-/* eslint no-console: "off" */
 
 "use strict";
 
 const {exec} = require("child_process");
 const fs = require("fs");
 const path = require("path");
 
 const {ncp} = require("ncp");
 
 const {download} = require("./download");
@@ skipping 46 matching lines @@
             reject(ncperr);
           }
           else
             resolve();
         });
       }
     });
   });
 }
 
+function runWinInstaller(archive, browserDir)
+{
+  // Procedure inspired from mozinstall:
+  // https://hg.mozilla.org/mozilla-central/file/tip/testing/mozbase/mozinstall/mozinstall/mozinstall.py
+  // Also uninstaller will need to be run.
+  return new Promise((resolve, reject) =>
+  {
+    exec([archive, `/extractdir=${browserDir}`].join(" "),
+         err =>
+         {
+           if (err)
+             reject(err);
+           else
+             resolve();
+         });
+  });
+}
+
 function extractArchive(archive, browserDir)
 {
   switch (platform)
   {
-//    case "win32":
-//      return unzipArchive(archive, browserDir);
+    case "win32":
+      return runWinInstaller(archive, browserDir);
     case "linux":
       return extractTar(archive, browserDir);
     case "darwin":
       return extractDmg(archive, browserDir);
     default:
       throw new Error("Unexpected platform");
   }
 }
 
 function getFirefoxExecutable(browserDir)
 {
   switch (platform)
   {
-//    case "win32":
-//      return path.join(browserDir, "firefox", "firefox.exe");
+    case "win32":
+      return path.join(browserDir, "firefox.exe");
     case "linux":
       return path.join(browserDir, "firefox", "firefox");
     case "darwin":
       return path.join(browserDir, "Firefox.app", "Contents",
                        "MacOS", "firefox");
     default:
       throw new Error("Unexpected platform");
   }
 }
 
@@ skipping 39 matching lines @@
           return download(url, archive);
         }
         console.info(`Reusing cached archive ${archive}`);
       })
       .then(() => extractArchive(archive, browserDir))
       .then(() => browserDir);
   }).then(dir => getFirefoxExecutable(dir));
 }
 
 module.exports.ensureFirefox = ensureFirefox;