From bd0b8f20cc15db0c50756b978b808940a72e68e3 2014-02-28 20:50:53
From: MinRK <benjaminrk@gmail.com>
Date: 2014-02-28 20:50:53
Subject: [PATCH] use ipc for notebook js tests

on linux only

This ought to prevent EADDRINUSE errors in the kernel.
---

diff --git a/IPython/testing/iptestcontroller.py b/IPython/testing/iptestcontroller.py
index c704656..7cc3033 100644
--- a/IPython/testing/iptestcontroller.py
+++ b/IPython/testing/iptestcontroller.py
@@ -221,9 +221,14 @@ def run_webapp(q, ipydir, nbdir, loglevel=0):
     sys.stderr = open(os.devnull, 'w')
     server = nbapp.NotebookApp()
     args = ['--no-browser']
-    args.extend(['--ipython-dir', ipydir])
-    args.extend(['--notebook-dir', nbdir])
-    args.extend(['--log-level', str(loglevel)])
+    args.extend(['--ipython-dir', ipydir,
+                 '--notebook-dir', nbdir,
+                 '--log-level', str(loglevel),
+    ])
+    # ipc doesn't work on Windows, and darwin has crazy-long temp paths,
+    # which run afoul of ipc's maximum path length.
+    if sys.platform.startswith('linux'):
+        args.append('--KernelManager.transport=ipc')
     server.initialize(args)
     # communicate the port number to the parent process
     q.put(server.port)