diff -r 000000000000 -r 6474c204b198 addon-sdk/source/lib/sdk/test/memory.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/addon-sdk/source/lib/sdk/test/memory.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,17 @@
+'use strict';
+
+const { Cu } = require("chrome");
+const memory = require('../deprecated/memory');
+const { defer } = require('../core/promise');
+
+function gc() {
+  let { promise, resolve } = defer();
+
+  Cu.forceGC();
+  memory.gc();
+
+  Cu.schedulePreciseGC(_ => resolve());
+
+  return promise;
+}
+exports.gc = gc;