diff --git a/gulpfile.js b/gulpfile.js
index 4787bdd1b7..8d6bc0feb9 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -1121,7 +1121,9 @@ gulp.task('!bundles.js.umd', ['build.js.dev'], function() {
 
   return q.all([
     webpack(webPackConf([__dirname + '/tools/build/webpack/angular2.umd.js'], 'angular2', 'dev')),
-    webpack(webPackConf([__dirname + '/tools/build/webpack/angular2.umd.js'], 'angular2', 'prod'))
+    webpack(webPackConf([__dirname + '/tools/build/webpack/angular2.umd.js'], 'angular2', 'prod')),
+    webpack(webPackConf([__dirname + '/tools/build/webpack/angular2-testing.umd.js'],
+                        'angular2-testing', 'dev'))
   ]);
 });
 
diff --git a/tools/build/webpack/angular2-testing.umd.js b/tools/build/webpack/angular2-testing.umd.js
new file mode 100644
index 0000000000..2be040bf4b
--- /dev/null
+++ b/tools/build/webpack/angular2-testing.umd.js
@@ -0,0 +1,15 @@
+// this bundle is almost identical to the angular2.umd.js
+// the only difference being "testing" export
+exports.core = require('angular2/core');
+exports.common = require('angular2/common');
+exports.platform = {
+  browser: require('angular2/platform/browser'),
+  common_dom: require('angular2/platform/common_dom')
+};
+exports.http = require('angular2/http');
+exports.router = require('angular2/router');
+exports.router_link_dsl = require('angular2/router/router_link_dsl.js');
+exports.instrumentation = require('angular2/instrumentation');
+exports.upgrade = require('angular2/upgrade');
+// this is the only difference as compared to the angular2.umd.js bundle
+exports.testing = require('angular2/testing');