From d7ec0b99fdf37463599109dea7c78a01fe775125 Mon Sep 17 00:00:00 2001
From: Cheng Zhao <zcbenz@gmail.com>
Date: Mon, 7 Sep 2015 21:07:27 +0800
Subject: [PATCH] spec: process.stdout should not throw exception

---
 spec/node-spec.coffee | 4 ++++
 spec/static/main.js   | 5 +++++
 2 files changed, 9 insertions(+)

diff --git a/spec/node-spec.coffee b/spec/node-spec.coffee
index 5ec2bb05e906..164480603e0f 100644
--- a/spec/node-spec.coffee
+++ b/spec/node-spec.coffee
@@ -133,3 +133,7 @@ describe 'node feature', ->
       b = new Buffer(p.innerText)
       assert.equal b.toString(), 'Jøhänñéß'
       assert.equal Buffer.byteLength(p.innerText), 13
+
+  describe 'process.stdout', ->
+    it 'should not throw exception', ->
+      process.stdout
diff --git a/spec/static/main.js b/spec/static/main.js
index d8b53167c5e2..1f6f9325e490 100644
--- a/spec/static/main.js
+++ b/spec/static/main.js
@@ -10,6 +10,11 @@ process.port = 0;  // will be used by crash-reporter spec.
 app.commandLine.appendSwitch('js-flags', '--expose_gc');
 app.commandLine.appendSwitch('ignore-certificate-errors');
 
+// Accessing stdout in the main process will result in the process.stdout
+// throwing UnknownSystemError in renderer process sometimes. This line makes
+// sure we can reproduce it in renderer process.
+process.stdout;
+
 ipc.on('message', function(event, arg) {
   event.sender.send('message', arg);
 });