Issue 6391 - Allow running the browser unit tests with Firefox

test/runners/chromium_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 fs = require("fs");
-const https = require("https");
 const path = require("path");
 
-const extractZip = require("extract-zip");
+const {download, unzipArchive} = require("./download");
 
 function getChromiumExecutable(chromiumDir)
 {
   switch (process.platform)
   {
     case "win32":
       return path.join(chromiumDir, "chrome-win32", "chrome.exe");
     case "linux":
       return path.join(chromiumDir, "chrome-linux", "chrome");
     case "darwin":
@@ skipping 15 matching lines @@
     "linux": ["Linux_x64", "chrome-linux.zip"],
     "darwin": ["Mac", "chrome-mac.zip"]
   };
 
   if (!buildTypes.hasOwnProperty(platform))
   {
     let err = new Error(`Cannot run browser tests, ${platform} is unsupported`);
     return Promise.reject(err);
   }
 
-
   return Promise.resolve().then(() =>
   {
     let snapshotsDir = path.join(__dirname, "..", "..", "chromium-snapshots");
     let chromiumDir = path.join(snapshotsDir,
                                 `chromium-${platform}-${chromiumRevision}`);
     if (fs.existsSync(chromiumDir))
       return chromiumDir;
 
     if (!fs.existsSync(path.dirname(chromiumDir)))
       fs.mkdirSync(path.dirname(chromiumDir));
 
     let [dir, fileName] = buildTypes[platform];
     let archive = path.join(snapshotsDir, "download-cache",
                             `${chromiumRevision}-${fileName}`);
 
     return Promise.resolve()
       .then(() =>
       {
         if (!fs.existsSync(archive))
         {
-          let url = `https://www.googleapis.com/download/storage/v1/b/chromium-browser-snapshots/o/${dir}%2F${chromiumRevision}%2F${fileName}?alt=media`;
           console.info("Downloading Chromium...");
-          return download(url, archive);
+          return download(
+            `https://www.googleapis.com/download/storage/v1/b/chromium-browser-snapshots/o/${dir}%2F${chromiumRevision}%2F${fileName}?alt=media`,
+            archive);
         }
         console.info(`Reusing cached archive ${archive}`);
       })
       .then(() => unzipArchive(archive, chromiumDir))
       .then(() => chromiumDir);
   }).then(dir => getChromiumExecutable(dir));
 }
 
-function download(url, destFile)
-{
-  return new Promise((resolve, reject) =>
-  {
-    let cacheDir = path.dirname(destFile);
-    if (!fs.existsSync(cacheDir))
-      fs.mkdirSync(cacheDir);
-    let tempDest = destFile + "-" + process.pid;
-    let writable = fs.createWriteStream(tempDest);
-
-    https.get(url, response =>
-    {
-      if (response.statusCode != 200)
-      {
-        reject(
-          new Error(`Unexpected server response: ${response.statusCode}`));
-        response.resume();
-        return;
-      }
-
-      response.pipe(writable)
-              .on("error", error =>
-              {
-                writable.close();
-                fs.unlinkSync(tempDest);
-                reject(error);
-              })
-              .on("close", () =>
-              {
-                writable.close();
-                fs.renameSync(tempDest, destFile);
-                resolve();
-              });
-    }).on("error", reject);
-  });
-}
-
-function unzipArchive(archive, destDir)
-{
-  return new Promise((resolve, reject) =>
-  {
-    extractZip(archive, {dir: destDir}, err =>
-    {
-      if (err)
-        reject(err);
-      else
-        resolve();
-    });
-  });
-}
-
 module.exports.ensureChromium = ensureChromium;