update

module5.ipynb

@@ -250,6 +250,39 @@
     "chmod +x rearrange_test.py \n",
     "./rearrange_test.py "
    ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Edge cases"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def test_empty(self):\n",
+    "  testcase = \"\"\n",
+    "  expected = \"\"\n",
+    "  self.assertEqual(rearrange_name(testcase), expected)\n",
+    "\n",
+    "./rearrange_test.py \n",
+    "\n",
+    "#!/usr/bin/env python3\n",
+    "\n",
+    "import re\n",
+    "\n",
+    "def rearrange_name(name):\n",
+    "  result = re.search(r\"^([\\w .-]*), ([\\w .-]*)$\", name)\n",
+    "  if result is None:\n",
+    "    return \"\"\n",
+    "  return \"{} {}\".format(result[2], result[1])\n",
+    "\n",
+    "./rearrange_test.py"
+   ]
   }
  ],
  "metadata": {