From 70f3edcdf93320fbc1730dd57e6c4886401144c7 2014-10-21 23:43:30
From: Jonathan Frederic <jdfreder@calpoly.edu>
Date: 2014-10-21 23:43:30
Subject: [PATCH] Fix an issue in the `kernel_running` function of the JS tests,
This fix allows the JS test to be ran against a remote server
with a higher than LAN latency.  This bug in our testing
framework was exposed when running `iptest js/widgets --url`
against tmpnb.

---

diff --git a/IPython/html/tests/util.js b/IPython/html/tests/util.js
index 9e159a6..464751c 100644
--- a/IPython/html/tests/util.js
+++ b/IPython/html/tests/util.js
@@ -58,7 +58,10 @@ casper.page_loaded = function() {
 casper.kernel_running = function() {
     // Return whether or not the kernel is running.
     return this.evaluate(function() {
-        return IPython.notebook.kernel.is_connected();
+        return IPython &&
+        IPython.notebook &&
+        IPython.notebook.kernel &&
+        IPython.notebook.kernel.is_connected();
     });
 };