Add test for when stdin is disabled

IPython/nbconvert/preprocessors/tests/files/Disable Stdin.ipynb

@@ -0,0 +1,36 b''
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": [
+    "name = input(\"name: \")"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.4.2"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}

IPython/nbconvert/preprocessors/tests/test_execute.py

@@ -89,4 +89,18 b' class TestExecute(PreprocessorTestsBase):'
                     del cell['execution_count']
                 cell['outputs'] = []
             output_nb, _ = preprocessor(cleaned_input_nb, res)
-            self.assert_notebooks_equal(output_nb, input_nb)
+
+            if os.path.basename(filename) == "Disable Stdin.ipynb":
+                # We need to special-case this particular notebook, because the
+                # traceback contains machine-specific stuff like where IPython
+                # is installed. It is sufficient here to just check that an error
+                # was thrown, and that it was a StdinNotImplementedError
+                self.assertEqual(len(output_nb['cells']), 1)
+                self.assertEqual(len(output_nb['cells'][0]['outputs']), 1)
+                output = output_nb['cells'][0]['outputs'][0]
+                self.assertEqual(output['output_type'], 'error')
+                self.assertEqual(output['ename'], 'StdinNotImplementedError')
+                self.assertEqual(output['evalue'], 'raw_input was called, but this frontend does not support input requests.')
+
+            else:
+                self.assert_notebooks_equal(output_nb, input_nb)