From 7178df10359d6ec4dbf3c98070cb02d73bf07f02 Mon Sep 17 00:00:00 2001
From: Yuan Gao <tinagao@google.com>
Date: Mon, 8 May 2017 11:06:41 -0700
Subject: [PATCH] fix test

---
 src/lib/radio/radio.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/lib/radio/radio.ts b/src/lib/radio/radio.ts
index 6c41e4a962be..ebccd6fbcdbd 100644
--- a/src/lib/radio/radio.ts
+++ b/src/lib/radio/radio.ts
@@ -185,6 +185,7 @@ export class MdRadioGroup extends _MdRadioGroupMixinBase
   set disabled(value) {
     this._disabled = value;
     if (this._radios) {
+      // Update radios disabled state
       this._radios.forEach((r) => r._groupValueChanged());
     }
   }
@@ -400,9 +401,10 @@ export class MdRadioButton implements OnInit, AfterViewInit, OnDestroy {
   get disabled(): boolean {
     return this._disabled || (this.radioGroup != null && this.radioGroup.disabled);
   }
-
   set disabled(value: boolean) {
     this._disabled = coerceBooleanProperty(value);
+    // Update rippleDisabled
+    this._changeDetector.markForCheck();
   }
 
   /**