From 63e785902fbc6d5edbc1a4ed135f65d1cdf00acd Mon Sep 17 00:00:00 2001
From: Misko Hevery <misko@hevery.com>
Date: Fri, 11 Sep 2015 14:53:49 -0700
Subject: [PATCH] feat(change_detection): allow triggering CD form
 ChangeDetectorRef

Closes #4144
---
 .../change_detection/change_detector_ref.ts   |  2 ++
 .../change_detector_ref_spec.ts               | 28 +++++++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 modules/angular2/test/core/change_detection/change_detector_ref_spec.ts

diff --git a/modules/angular2/src/core/change_detection/change_detector_ref.ts b/modules/angular2/src/core/change_detection/change_detector_ref.ts
index 8e5bf2f17a..40bfbaf710 100644
--- a/modules/angular2/src/core/change_detection/change_detector_ref.ts
+++ b/modules/angular2/src/core/change_detection/change_detector_ref.ts
@@ -25,6 +25,8 @@ export class ChangeDetectorRef {
    */
   detach(): void { this._cd.mode = ChangeDetectionStrategy.Detached; }
 
+  detectChanges(): void { this._cd.detectChanges(); }
+
   /**
    * Reattach the change detector to the change detector tree.
    *
diff --git a/modules/angular2/test/core/change_detection/change_detector_ref_spec.ts b/modules/angular2/test/core/change_detection/change_detector_ref_spec.ts
new file mode 100644
index 0000000000..dbf031b123
--- /dev/null
+++ b/modules/angular2/test/core/change_detection/change_detector_ref_spec.ts
@@ -0,0 +1,28 @@
+import {
+  ddescribe,
+  describe,
+  it,
+  iit,
+  xit,
+  expect,
+  beforeEach,
+  afterEach,
+  tick,
+  fakeAsync
+} from 'angular2/test_lib';
+
+import {ChangeDetectorRef} from 'angular2/src/core/change_detection/change_detector_ref';
+import {SpyChangeDetector} from '../spies';
+
+
+export function main() {
+  describe('ChangeDetectorRef', () => {
+    it('should delegate detectChanges()', () => {
+      var changeDetector = new SpyChangeDetector();
+      changeDetector.spy('detectChanges');
+      var changeDetectorRef = new ChangeDetectorRef(<any>changeDetector);
+      changeDetectorRef.detectChanges();
+      expect(changeDetector.spy('detectChanges')).toHaveBeenCalled();
+    });
+  });
+}