new_contents: import unittest
  import mock
  import mox
  import navigate
  import json
  
  class NavigateTest(unittest.TestCase):
      def setUp(self):
          pass
          
      def test_something(self):
          self.assertEquals(2, 2)
  
      # Source for MockResponse class:
      # http://stackoverflow.com/questions/15753390/python-mock-requests-and-the-response
      def foo(*args, **kwargs):
      	class MockResponse(object):
      		def __init__(self, code, text):
      			self.code = code
      			self.text = text
      			
          return MockResponse(200, json.dumps(
          	{'result': {'formatted_address': 'foobar'}}))
  
      @mock.patch('requests.get', side_effect=foo)
      def test_address_lookup(self, obj):
          add = navigate.address_lookup('22')
          self.assertEquals('foobar', add)
  
subject: Add basic unittests