108536234: created users and roles data and domain model.

You will need to run the /scripts/bootstrap.sh to create the database for test and the app.

tests/test_app.py

@@ -1,2 +1,10 @@
-def test_app():
-    assert 1 == 1
+def test_index_returns_200(notifications_admin):
+    response = notifications_admin.test_client().get('/index')
+    assert response.status_code == 200
+    assert response.data.decode('utf-8') == 'Hello from notifications-admin'
+
+
+def test_helloworld_returns_200(notifications_admin):
+    response = notifications_admin.test_client().get('/helloworld')
+    assert response.status_code == 200
+    assert 'Hello world!' in response.data.decode('utf-8')