renaming methods to use snake case, fixing test case

Author: jsstylos

test/test_natural_language_understanding.py

@@ -124,26 +124,27 @@ def test_url_analyze(self):
         assert len(responses.calls) == 1
 
     @responses.activate
-    def test_listModels(self):
+    def test_list_models(self):
         nlu_url = "http://bogus.com/v1/models"
-        responses.add(responses.GET, nlu_url, status=200, body="{\"resulting_key\": true}",
+        responses.add(responses.GET, nlu_url, status=200,
+                      body="{\"resulting_key\": true}",
                       content_type='application/json')
         nlu = NaturalLanguageUnderstandingV1(version='2016-01-23',
                                              url='http://bogus.com',
                                              username='username',
                                              password='password')
-        nlu.listModels();
+        nlu.list_models()
         assert len(responses.calls) == 1
 
     @responses.activate
-    def test_deleteModel(self):
+    def test_delete_model(self):
         model_id = "invalid_model_id"
         nlu_url = "http://bogus.com/v1/models/" + model_id
         responses.add(responses.DELETE, nlu_url, status=200,
-                      content_type='application/json')
+                      body="{}", content_type='application/json')
         nlu = NaturalLanguageUnderstandingV1(version='2016-01-23',
                                              url='http://bogus.com',
                                              username='username',
                                              password='password')
-        nlu.deleteModel(model_id);
+        nlu.delete_model(model_id)
         assert len(responses.calls) == 1

watson_developer_cloud/natural_language_understanding_v1.py

@@ -82,7 +82,8 @@ def analyze(self, features, text=None, url=None, html=None,
                             headers={'content-type': 'application/json'},
                             json=body,
                             accept_json=True)
-    def listModels(self):
+
+    def list_models(self):
         """
         Lists the custom models available for your service instance
         :return: dict of available custom models
@@ -91,13 +92,14 @@ def listModels(self):
                             params={"version": self.version},
                             accept_json=True)
 
-    def deleteModel(self, model_id):
+    def delete_model(self, model_id):
         """
         Deletes a custom model
         :param model_id: The ID of the model to delete
         :return: dict with status of model deletion
         """
 
-        return self.request(method='DELETE', url='/v1/models/{0}'.format(model_id),
+        return self.request(method='DELETE',
+                            url='/v1/models/{0}'.format(model_id),
                             params={"version": self.version},
                             accept_json=True)