Updated unit test and updated tox.ini file to be more flexible with Python versions

Author: mattmanley

tests/test_task_api.py

@@ -34,8 +34,8 @@ def test_create_task(self, mock_request, api_instance=api):
                                                 geometries=geometries)
         api_instance.create_task(test_task_model)
         mock_request.assert_called_once_with(
-            f'{self.url}/tasks',
-            json=test_task_model,
+            f'{self.url}/task',
+            json=test_task_model.to_dict(),
             params=None)
 
     @patch('maproulette.api.maproulette_server.requests.Session.post')
@@ -89,7 +89,7 @@ def test_create_cooperative_task(self, mock_request, api_instance=api):
         api_instance.create_task(test_task)
         mock_request.assert_called_once_with(
             f'{self.url}/task',
-            json=test_task,
+            json=test_task.to_dict(),
             params=None)
 
     @patch('maproulette.api.maproulette_server.requests.Session.put')

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py36
+minversion = 3.6.0
 
 [testenv]
 deps =