Simplify to run Refstack in development mode

This patchs allows to run Refstack application (API + UI) using
'pecan serve' command.

CONF.api.template_path and CONF.api.static_root should point to
refstack-ui/app

CONF.api.app_dev_mode should be set

Change-Id: I9f6399a7d59cb0a4656bc8e988862d50647ed940

refstack/api/controllers/root.py

@@ -16,9 +16,12 @@
 """Root controller."""
 
 from pecan import expose
+from oslo_config import cfg
 
 from refstack.api.controllers import v1
 
+CONF = cfg.CONF
+
 
 class RootController(object):
 
@@ -26,7 +29,7 @@ class RootController(object):
 
     v1 = v1.V1Controller()
 
-    @expose('json')
-    def index(self):
-        """root response."""
-        return {'Root': 'OK'}
+    if CONF.api.app_dev_mode:
+        @expose(generic=True, template='index.html')
+        def index(self):
+            return dict()

refstack/tests/api/test_api.py

@@ -37,18 +37,6 @@ FAKE_TESTS_RESULT = {
 }
 
 
-class TestRootController(api.FunctionalTest):
-    """Test case for RootController."""
-
-    URL = '/'
-
-    def test_root_controller(self):
-        """Test request to root."""
-        actual_response = self.get_json(self.URL)
-        expected_response = {'Root': 'OK'}
-        self.assertEqual(expected_response, actual_response)
-
-
 class TestResultsController(api.FunctionalTest):
     """Test case for ResultsController."""
 

refstack/tests/unit/test_api.py

@@ -26,7 +26,6 @@ import requests
 
 from refstack.api import constants as const
 from refstack.api import utils as api_utils
-from refstack.api.controllers import root
 from refstack.api.controllers import v1
 
 
@@ -41,10 +40,16 @@ def safe_json_dump(content):
 
 class RootControllerTestCase(base.BaseTestCase):
 
-    def test_index(self):
+    @mock.patch('pecan.expose', return_value=lambda f: f)
+    def test_index(self, expose_mock):
+        config = config_fixture.Config()
+        CONF = self.useFixture(config).conf
+        CONF.set_override('app_dev_mode', True, 'api')
+        from refstack.api.controllers import root
         controller = root.RootController()
         result = controller.index()
-        self.assertEqual(result, {'Root': 'OK'})
+        self.assertEqual({}, result)
+        expose_mock.assert_called_with(generic=True, template='index.html')
 
 
 class ResultsControllerTestCase(base.BaseTestCase):