diff -r 000000000000 -r 6474c204b198 toolkit/devtools/sourcemap/tests/unit/test_array_set.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/devtools/sourcemap/tests/unit/test_array_set.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,112 @@
+/*
+ * 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 2011 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-array-set", ["require", "exports", "module"], function (require, exports, module) {
+
+  var ArraySet = require('source-map/array-set').ArraySet;
+
+  function makeTestSet() {
+    var set = new ArraySet();
+    for (var i = 0; i < 100; i++) {
+      set.add(String(i));
+    }
+    return set;
+  }
+
+  exports['test .has() membership'] = function (assert, util) {
+    var set = makeTestSet();
+    for (var i = 0; i < 100; i++) {
+      assert.ok(set.has(String(i)));
+    }
+  };
+
+  exports['test .indexOf() elements'] = function (assert, util) {
+    var set = makeTestSet();
+    for (var i = 0; i < 100; i++) {
+      assert.strictEqual(set.indexOf(String(i)), i);
+    }
+  };
+
+  exports['test .at() indexing'] = function (assert, util) {
+    var set = makeTestSet();
+    for (var i = 0; i < 100; i++) {
+      assert.strictEqual(set.at(i), String(i));
+    }
+  };
+
+  exports['test creating from an array'] = function (assert, util) {
+    var set = ArraySet.fromArray(['foo', 'bar', 'baz', 'quux', 'hasOwnProperty']);
+
+    assert.ok(set.has('foo'));
+    assert.ok(set.has('bar'));
+    assert.ok(set.has('baz'));
+    assert.ok(set.has('quux'));
+    assert.ok(set.has('hasOwnProperty'));
+
+    assert.strictEqual(set.indexOf('foo'), 0);
+    assert.strictEqual(set.indexOf('bar'), 1);
+    assert.strictEqual(set.indexOf('baz'), 2);
+    assert.strictEqual(set.indexOf('quux'), 3);
+
+    assert.strictEqual(set.at(0), 'foo');
+    assert.strictEqual(set.at(1), 'bar');
+    assert.strictEqual(set.at(2), 'baz');
+    assert.strictEqual(set.at(3), 'quux');
+  };
+
+  exports['test that you can add __proto__; see github issue #30'] = function (assert, util) {
+    var set = new ArraySet();
+    set.add('__proto__');
+    assert.ok(set.has('__proto__'));
+    assert.strictEqual(set.at(0), '__proto__');
+    assert.strictEqual(set.indexOf('__proto__'), 0);
+  };
+
+  exports['test .fromArray() with duplicates'] = function (assert, util) {
+    var set = ArraySet.fromArray(['foo', 'foo']);
+    assert.ok(set.has('foo'));
+    assert.strictEqual(set.at(0), 'foo');
+    assert.strictEqual(set.indexOf('foo'), 0);
+    assert.strictEqual(set.toArray().length, 1);
+
+    set = ArraySet.fromArray(['foo', 'foo'], true);
+    assert.ok(set.has('foo'));
+    assert.strictEqual(set.at(0), 'foo');
+    assert.strictEqual(set.at(1), 'foo');
+    assert.strictEqual(set.indexOf('foo'), 0);
+    assert.strictEqual(set.toArray().length, 2);
+  };
+
+  exports['test .add() with duplicates'] = function (assert, util) {
+    var set = new ArraySet();
+    set.add('foo');
+
+    set.add('foo');
+    assert.ok(set.has('foo'));
+    assert.strictEqual(set.at(0), 'foo');
+    assert.strictEqual(set.indexOf('foo'), 0);
+    assert.strictEqual(set.toArray().length, 1);
+
+    set.add('foo', true);
+    assert.ok(set.has('foo'));
+    assert.strictEqual(set.at(0), 'foo');
+    assert.strictEqual(set.at(1), 'foo');
+    assert.strictEqual(set.indexOf('foo'), 0);
+    assert.strictEqual(set.toArray().length, 2);
+  };
+
+});
+function run_test() {
+  runSourceMapTests('test/source-map/test-array-set', do_throw);
+}