diff -r 000000000000 -r 6474c204b198 browser/devtools/commandline/test/browser_gcli_fail.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/commandline/test/browser_gcli_fail.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2012, Mozilla Foundation and contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+// <INJECTED SOURCE:START>
+
+// THIS FILE IS GENERATED FROM SOURCE IN THE GCLI PROJECT
+// DO NOT EDIT IT DIRECTLY
+
+var exports = {};
+
+var TEST_URI = "data:text/html;charset=utf-8,<p id='gcli-input'>gcli-testFail.js</p>";
+
+function test() {
+  return Task.spawn(function() {
+    let options = yield helpers.openTab(TEST_URI);
+    yield helpers.openToolbar(options);
+    gcli.addItems(mockCommands.items);
+
+    yield helpers.runTests(options, exports);
+
+    gcli.removeItems(mockCommands.items);
+    yield helpers.closeToolbar(options);
+    yield helpers.closeTab(options);
+  }).then(finish, helpers.handleError);
+}
+
+// <INJECTED SOURCE:END>
+
+// var helpers = require('./helpers');
+
+exports.testBasic = function(options) {
+  return helpers.audit(options, [
+    {
+      setup: 'tsfail reject',
+      exec: {
+        output: 'rejected promise',
+        type: 'error',
+        error: true
+      }
+    },
+    {
+      setup: 'tsfail rejecttyped',
+      exec: {
+        output: '54',
+        type: 'number',
+        error: true
+      }
+    },
+    {
+      setup: 'tsfail throwerror',
+      exec: {
+        output: 'thrown error',
+        type: 'error',
+        error: true
+      }
+    },
+    {
+      setup: 'tsfail throwstring',
+      exec: {
+        output: 'thrown string',
+        type: 'error',
+        error: true
+      }
+    },
+    {
+      setup: 'tsfail noerror',
+      exec: {
+        output: 'no error',
+        type: 'string',
+        error: false
+      }
+    }
+  ]);
+};