Fix broken test for the invalid notebook

IPython/nbformat/tests/invalid.ipynb

@@ -1,155 +1,152
 {
  "metadata": {
   "cell_tags": [
    [
     "<None>",
     null
    ]
   ],
   "name": 0
  },
  "nbformat": 3,
  "nbformat_minor": 0,
  "worksheets": [
   {
    "cells": [
     {
      "cell_type": "heading",
      "level": 1,
      "source": [
       "nbconvert latex test"
      ]
     },
     {
      "cell_type": "markdown",
      "metadata": {},
      "source": [
       "**Lorem ipsum** dolor sit amet, consectetur adipiscing elit. Nunc luctus bibendum felis dictum sodales. Ut suscipit, orci ut interdum imperdiet, purus ligula mollis *justo*, non malesuada nisl augue eget lorem. Donec bibendum, erat sit amet porttitor aliquam, urna lorem ornare libero, in vehicula diam diam ut ante. Nam non urna rhoncus, accumsan elit sit amet, mollis tellus. Vestibulum nec tellus metus. Vestibulum tempor, ligula et vehicula rhoncus, sapien turpis faucibus lorem, id dapibus turpis mauris ac orci. Sed volutpat vestibulum venenatis."
      ]
     },
     {
      "cell_type": "heading",
      "level": 2,
      "metadata": {},
      "source": [
       "Printed Using Python"
      ]
     },
     {
      "cell_type": "code",
      "collapsed": false,
      "input": [
       "print(\"hello\")"
      ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
        "output_type": "stream",
        "stream": "stdout",
        "text": [
         "hello\n"
        ]
       }
      ],
      "prompt_number": 1
     },
     {
      "cell_type": "heading",
      "level": 1000,
      "metadata": {},
      "source": [
       "Pyout"
      ]
     },
     {
      "cell_type": "code",
      "collapsed": false,
      "input": [
       "from IPython.display import HTML\n",
       "HTML(\"\"\"\n",
       "<script>\n",
       "console.log(\"hello\");\n",
       "</script>\n",
       "<b>HTML</b>\n",
       "\"\"\")"
      ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
        "html": [
         "\n",
         "<script>\n",
         "console.log(\"hello\");\n",
         "</script>\n",
         "<b>HTML</b>\n"
        ],
        "metadata": {},
        "output_type": "pyout",
        "prompt_number": 3,
        "text": [
         "<IPython.core.display.HTML at 0x1112757d0>"
        ]
       }
      ],
      "prompt_number": 3
     },
     {
      "cell_type": "code",
      "collapsed": false,
      "input": [
       "%%javascript\n",
       "console.log(\"hi\");"
      ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
        "javascript": [
         "console.log(\"hi\");"
        ],
        "metadata": {},
        "output_type": "display_data",
        "text": [
         "<IPython.core.display.Javascript at 0x1112b4b50>"
        ]
       }
      ],
      "prompt_number": 7
     },
     {
      "cell_type": "heading",
      "level": 3,
-     "metadata": {},
-     "source": [
-      "Image"
-     ]
+     "metadata": {}
     },
     {
      "cell_type": "code",
      "collapsed": false,
      "input": [
       "from IPython.display import Image\n",
       "Image(\"http://ipython.org/_static/IPy_header.png\")"
      ],
      "language": "python",
      "metadata": {},
      "outputs": [
       {
        "metadata": {},
        "output_type": "pyout",
        "png": 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        "prompt_number": 6,
        "text": [
         "<IPython.core.display.Image at 0x111275490>"
        ]
       }
      ],
      "prompt_number": 6
     }
    ],
    "metadata": {}
   }
  ]
 }

IPython/nbformat/tests/test_validator.py

@@ -1,73 +1,73
 """
 Contains tests class for validator.py
 """
 #-----------------------------------------------------------------------------
 #  Copyright (C) 2014  The IPython Development Team
 #
 #  Distributed under the terms of the BSD License.  The full license is in
 #  the file COPYING, distributed as part of this software.
 #-----------------------------------------------------------------------------
 
 #-----------------------------------------------------------------------------
 # Imports
 #-----------------------------------------------------------------------------
 
 import os
 
 from .base import TestsBase
 from IPython.external.jsonschema import SchemaError
 from ..current import read
 from ..validator import schema_path, isvalid, validate, resolve_ref
 
 
 #-----------------------------------------------------------------------------
 # Classes and functions
 #-----------------------------------------------------------------------------
 
 class TestValidator(TestsBase):
 
     def test_schema_path(self):
         """Test that the schema path exists"""
         self.assertEqual(os.path.exists(schema_path), True)
 
     def test_nb2(self):
         """Test that a v2 notebook converted to v3 passes validation"""
         with self.fopen(u'test2.ipynb', u'r') as f:
             nb = read(f, u'json')
         self.assertEqual(validate(nb), [])
         self.assertEqual(isvalid(nb), True)
 
     def test_nb3(self):
         """Test that a v3 notebook passes validation"""
         with self.fopen(u'test3.ipynb', u'r') as f:
             nb = read(f, u'json')
         self.assertEqual(validate(nb), [])
         self.assertEqual(isvalid(nb), True)
 
     def test_invalid(self):
         """Test than an invalid notebook does not pass validation"""
         # this notebook has a few different errors:
         # - the name is an integer, rather than a string
-        # - one cell is missing metadata
+        # - one cell is missing its source
         # - one cell has an invalid level
         with self.fopen(u'invalid.ipynb', u'r') as f:
             nb = read(f, u'json')
         self.assertEqual(len(validate(nb)), 3)
         self.assertEqual(isvalid(nb), False)
 
     def test_resolve_ref(self):
         """Test that references are correctly resolved"""
         # make sure it resolves the ref correctly
         json = {"abc": "def", "ghi": {"$ref": "/abc"}}
         resolved = resolve_ref(json)
         self.assertEqual(resolved, {"abc": "def", "ghi": "def"})
 
         # make sure it throws an error if the ref is not by itself
         json = {"abc": "def", "ghi": {"$ref": "/abc", "foo": "bar"}}
         with self.assertRaises(SchemaError):
             resolved = resolve_ref(json)
 
         # make sure it can handle json with no reference
         json = {"abc": "def"}
         resolved = resolve_ref(json)
         self.assertEqual(resolved, json)