From 9fabf8e01bf45399b7ab70a6418e06a83dbcd1ef Mon Sep 17 00:00:00 2001
From: Donne Martin <donne.martin@gmail.com>
Date: Mon, 26 Jan 2015 14:07:37 -0500
Subject: [PATCH] Added map snippet.

---
 core/functions.ipynb              | 10 ++++++++--
 core/tests/test_transform_util.py |  4 ++++
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/core/functions.ipynb b/core/functions.ipynb
index 8165934..39e14da 100644
--- a/core/functions.ipynb
+++ b/core/functions.ipynb
@@ -1,7 +1,7 @@
 {
  "metadata": {
   "name": "",
-  "signature": "sha256:8c91cadf8bbcbcdd5a60fc0a89e964b846a6f5328eaa57d57afbaedda06ad3ca"
+  "signature": "sha256:93f08d982c73b7b50d2c679984dc25a00cc198f32a1a82269c2c119da5d0e26e"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -108,6 +108,11 @@
       "    \n",
       "    def test_remove_punctuation(self):\n",
       "        assert_equal(TransformUtil.remove_punctuation('!#?'), '')\n",
+      "        \n",
+      "    def test_map_remove_punctuation(self):\n",
+      "        # Map applies a function to a collection\n",
+      "        output = map(TransformUtil.remove_punctuation, self.states)\n",
+      "        assert_equal('!#?' not in output, True)\n",
       "\n",
       "    def test_clean_strings(self):\n",
       "        clean_ops = [str.strip, TransformUtil.remove_punctuation, str.title] \n",
@@ -141,10 +146,11 @@
        "stream": "stdout",
        "text": [
         "core.tests.test_transform_util.TestTransformUtil.test_clean_strings ... ok\r\n",
+        "core.tests.test_transform_util.TestTransformUtil.test_map_remove_punctuation ... ok\r\n",
         "core.tests.test_transform_util.TestTransformUtil.test_remove_punctuation ... ok\r\n",
         "\r\n",
         "----------------------------------------------------------------------\r\n",
-        "Ran 2 tests in 0.001s\r\n",
+        "Ran 3 tests in 0.002s\r\n",
         "\r\n",
         "OK\r\n"
        ]
diff --git a/core/tests/test_transform_util.py b/core/tests/test_transform_util.py
index b21bd2d..312afb9 100644
--- a/core/tests/test_transform_util.py
+++ b/core/tests/test_transform_util.py
@@ -17,6 +17,10 @@ class TestTransformUtil():
     
     def test_remove_punctuation(self):
         assert_equal(TransformUtil.remove_punctuation('!#?'), '')
+        
+    def test_map_remove_punctuation(self):
+        output = map(TransformUtil.remove_punctuation, self.states)
+        assert_equal('!#?' not in output, True)
 
     def test_clean_strings(self):
         clean_ops = [str.strip, TransformUtil.remove_punctuation, str.title]