diff -r 000000000000 -r 6474c204b198 toolkit/devtools/sourcemap/tests/unit/test_api.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/devtools/sourcemap/tests/unit/test_api.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,34 @@
+/*
+ * WARNING!
+ *
+ * Do not edit this file directly, it is built from the sources at
+ * https://github.com/mozilla/source-map/
+ */
+
+Components.utils.import('resource://test/Utils.jsm');
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2012 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+define("test/source-map/test-api", ["require", "exports", "module"], function (require, exports, module) {
+
+  var sourceMap;
+  try {
+    sourceMap = require('source-map');
+  } catch (e) {
+    sourceMap = {};
+    Components.utils.import('resource:///modules/devtools/SourceMap.jsm', sourceMap);
+  }
+
+  exports['test that the api is properly exposed in the top level'] = function (assert, util) {
+    assert.equal(typeof sourceMap.SourceMapGenerator, "function");
+    assert.equal(typeof sourceMap.SourceMapConsumer, "function");
+    assert.equal(typeof sourceMap.SourceNode, "function");
+  };
+
+});
+function run_test() {
+  runSourceMapTests('test/source-map/test-api', do_throw);
+}