Issue 4223 - Migrate some more of adblockplustests

test_wrapper.js

 "use strict";
 
+let nodeBabel = require("node-babel");
+let nodeunit = require("nodeunit");
+let path = require("path");
+
+// The Adblock Plus code assumes some things are present in the global scope.
+// We need to stub them out here to get the tests running.
 GLOBAL.atob = data => new Buffer(data, "base64").toString("binary");
 GLOBAL.btoa = data => new Buffer(data, "binary").toString("base64");
+GLOBAL.Ci = {};
+GLOBAL.Cu = {
+  import: () => { }
+};
 GLOBAL.navigator = {};
+GLOBAL.onShutdown = {
+  add: () => { }
+};
+GLOBAL.Services = {
+  obs: {
+    addObserver: () => { }
+  }
+};
+GLOBAL.XPCOMUtils = {
+  generateQI: () => { }
+};
 
-require("node-babel")();
+// Force the use of our modules over the Node.js builtin modules when the names
+// clash by messing with the module cache. (It's important we load any Node.js
+// modules beforehand, otherwise they will might break when given our modules!)

[Wladimir Palant, 2016/09/26 09:40:58]

Messing with the global require function is a bad idea. As indicated before, it
should be a good idea for various reasons to run core code sandboxed. Fixing
requires within the sandbox isn't as easy as the documentation suggests, for
Easy Passwords I ended up using a source transformer rerouting all "known"
modules - see
https://github.com/palant/easypasswords/blob/1a419a05bddd2145f2ece1ca7838147a....

[kzar, 2016/09/29 15:53:10]

Done.

+function forceModule(name, relativePath)
+{
+  let filename = name + ".js";
+  let absolutePath = path.join(__dirname, relativePath, filename);
+  require(absolutePath);
+  require.cache[name] = require.cache[absolutePath];
+}
+forceModule("events", "lib");
+forceModule("io", "test/stub-modules");
 
-require("./node_modules/.bin/nodeunit");
+nodeBabel();

[Wladimir Palant, 2016/09/26 09:40:58]

This should no longer be necessary if we require at least Node 6, our code can
run without transpiling now.

[kzar, 2016/09/29 15:53:10]

Done.

+nodeunit.reporters.default.run(["test"]);