Add environment edit API

'/environments/<env_id>/model/<path>' endpoint added.
GET request responds with the subsection of <env_id>'s object
model located in its <path>.
PATCH request applies json-patch from request body to <end_id>'s
model. It does not contain <path> in the URL.

Change-Id: I672d43464ed7d5722cc574f1a10700b070664f34
Implements: bp environment-edit

murano_tempest_tests/services/application_catalog/application_catalog_client.py

@@ -155,6 +155,28 @@ class ApplicationCatalogClient(rest_client.RestClient):
         self.expected_success(200, resp.status)
         return self._parse_resp(body)
 
+    def get_environment_model(self, environment_id, path='/', session_id=None):
+        headers = self.get_headers()
+        if session_id:
+            headers.update(
+                {'X-Configuration-Session': session_id}
+            )
+        uri = '/v1/environments/{id}/model/{path}'.format(
+            id=environment_id, path=path)
+        resp, body = self.get(uri, headers=headers)
+        self.expected_success(200, resp.status)
+        return json.loads(body)
+
+    def update_environment_model(self, environment_id, data, session_id):
+        headers = self.get_headers(send_type='env-model-json-patch')
+        headers.update(
+            {'X-Configuration-Session': session_id}
+        )
+        uri = '/v1/environments/{id}/model/'.format(id=environment_id)
+        resp, body = self.patch(uri, json.dumps(data), headers=headers)
+        self.expected_success(200, resp.status)
+        return json.loads(body)
+
 # -----------------------Methods for session manage ---------------------------
     def create_session(self, environment_id):
         body = None

murano_tempest_tests/tests/api/application_catalog/test_environments.py

@@ -84,3 +84,42 @@ class TestEnvironments(base.BaseApplicationCatalogTest):
         environment = self.application_catalog_client.\
             update_environment(self.environment['id'])
         self.assertIsNot(self.environment['name'], environment['name'])
+
+    @testtools.testcase.attr('smoke')
+    def test_get_environment_model(self):
+        model = self.application_catalog_client.\
+            get_environment_model(self.environment['id'])
+        self.assertIsInstance(model, dict)
+        self.assertIn('defaultNetworks', model)
+        self.assertEqual(self.environment['name'], model['name'])
+        self.assertEqual(model['?']['type'], "io.murano.Environment")
+
+        net_name = self.application_catalog_client.\
+            get_environment_model(self.environment['id'],
+                                  path='/defaultNetworks/environment/name')
+        self.assertEqual("{0}-network".format(self.environment['name']),
+                         net_name)
+
+    @testtools.testcase.attr('smoke')
+    def test_update_environment_model(self):
+        session = self.application_catalog_client. \
+            create_session(self.environment['id'])
+        patch = [{
+            "op": "replace",
+            "path": "/defaultNetworks/flat",
+            "value": True
+        }]
+        new_model = self.application_catalog_client. \
+            update_environment_model(self.environment['id'], patch,
+                                     session['id'])
+        self.assertTrue(new_model['defaultNetworks']['flat'])
+
+        value_draft = self.application_catalog_client. \
+            get_environment_model(self.environment['id'],
+                                  '/defaultNetworks/flat',
+                                  session['id'])
+        self.assertTrue(value_draft)
+
+        model_current = self.application_catalog_client. \
+            get_environment_model(self.environment['id'])
+        self.assertIsNone(model_current['defaultNetworks']['flat'])