Added IPython Notebook demonstrating nose unit tests.

Author: donnemartin

README.md

@@ -6,9 +6,10 @@ Python data analysis IPython Notebooks (core Python, NumPy, pandas, matplotlib,
 IPython Notebooks demonstrating core Python functionality geared towards data analysis.
 
 * [basics](http://nbviewer.ipython.org/github/donnemartin/pydatanotebooks/blob/master/core/basics.ipynb)
-* [datetime](http://nbviewer.ipython.org/github/donnemartin/pydatanotebooks/blob/master/core/datetime.ipynb)
 * [data structures](http://nbviewer.ipython.org/github/donnemartin/pydatanotebooks/blob/master/core/structs.ipynb)
 * [data structures utilities](http://nbviewer.ipython.org/github/donnemartin/pydatanotebooks/blob/master/core/structs_utils.ipynb)
+* [datetime](http://nbviewer.ipython.org/github/donnemartin/pydatanotebooks/blob/master/core/datetime.ipynb)
+* [unit tests](http://nbviewer.ipython.org/github/donnemartin/pydatanotebooks/blob/master/core/unit_tests.ipynb)
 
 ## numpy
 

core/unit_tests.ipynb

@@ -0,0 +1,157 @@
+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:bdca080b7a3c3e13406cff167e5e8a56e199b53e7c3b965c6583665afd737e4e"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "# Nose Unit Tests with IPython Notebook"
+     ]
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "## Install Nose"
+     ]
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "```bash\n",
+      "pip install nose\n",
+      "```"
+     ]
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "## Create the Code"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "%%file type_util.py\n",
+      "class TypeUtil:\n",
+      "\n",
+      "    @classmethod\n",
+      "    def is_iterable(cls, obj):\n",
+      "        \"\"\"Determines if obj is iterable.\n",
+      "\n",
+      "        Useful when writing functions that can accept multiple types of\n",
+      "        input (list, tuple, ndarray, iterator).  Pairs well with\n",
+      "        convert_to_list.\n",
+      "        \"\"\"\n",
+      "        try:\n",
+      "            iter(obj)\n",
+      "            return True\n",
+      "        except TypeError:\n",
+      "            return False\n",
+      "\n",
+      "    @classmethod\n",
+      "    def convert_to_list(cls, obj):\n",
+      "        \"\"\"Converts obj to a list if it is not a list and it is iterable, \n",
+      "        else returns the original obj.\n",
+      "        \"\"\"\n",
+      "        if not isinstance(obj, list) and cls.is_iterable(obj):\n",
+      "            obj = list(obj)\n",
+      "        return obj\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Overwriting type_util.py\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "## Create the Nose Tests"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "%%file tests/test_type_util.py\n",
+      "from nose.tools import assert_equal\n",
+      "from pydatasnippets.core.type_util import TypeUtil\n",
+      "\n",
+      "\n",
+      "class TestUtil():\n",
+      "\n",
+      "    def test_is_iterable(self):\n",
+      "        assert_equal(TypeUtil.is_iterable('foo'), True)\n",
+      "        assert_equal(TypeUtil.is_iterable(7), False)\n",
+      "\n",
+      "    def test_convert_to_list(self):\n",
+      "        assert_equal(isinstance(TypeUtil.convert_to_list('foo'), list), True)\n",
+      "        assert_equal(isinstance(TypeUtil.convert_to_list(7), list), False)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Overwriting tests/test_type_util.py\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "## Run the Nose Tests"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "!nosetests tests/test_type_util.py"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "..\r\n",
+        "----------------------------------------------------------------------\r\n",
+        "Ran 2 tests in 0.001s\r\n",
+        "\r\n",
+        "OK\r\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}