From be600fda553f7c3b6af75aba3428f56e5970a282 Mon Sep 17 00:00:00 2001
From: Cheng Zhao <zcbenz@gmail.com>
Date: Mon, 21 Sep 2015 11:24:05 +0800
Subject: [PATCH] spec: Prevent callback of beginFrameSubscription being called
 twice

---
 spec/api-browser-window-spec.coffee | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/spec/api-browser-window-spec.coffee b/spec/api-browser-window-spec.coffee
index bb4d782e7ffb..64e62716604d 100644
--- a/spec/api-browser-window-spec.coffee
+++ b/spec/api-browser-window-spec.coffee
@@ -306,8 +306,11 @@ describe 'browser-window module', ->
 
   describe 'beginFrameSubscription method', ->
     it 'subscribes frame updates', (done) ->
+      called = false
       w.loadUrl "file://#{fixtures}/api/blank.html"
       w.webContents.beginFrameSubscription (data) ->
+        return if called
+        called = true
         assert.notEqual data.length, 0
         w.webContents.endFrameSubscription()
         done()