Add tests for mattermost login via oauth

* Adds Runtime::Scenario as a place to record the properties of the
  Scenario we're interested in.

* Adds a positional argument to Test::Integration::Mattermost to specify
  Runtime::Scenario.mattermost

* Adds Page::Mattermost::{Main,Login} to model the mattermost pages we
  need to interact with.

* Adds qa/features/mattermost/login_spec to perform a login via oauth
  and ensure we are logged in.

1 files changed, 6 insertions, 0 deletions

diff --git a/qa/qa.rb b/qa/qa.rb
index 59d9dd131c2..e8689a44f4d 100644
--- a/qa/qa.rb
+++ b/qa/qa.rb
@@ -8,6 +8,7 @@ module QA
     autoload :Release, 'qa/runtime/release'
     autoload :User, 'qa/runtime/user'
     autoload :Namespace, 'qa/runtime/namespace'
+    autoload :Scenario, 'qa/runtime/scenario'
   end
 
   ##
@@ -80,6 +81,11 @@ module QA
     module Admin
       autoload :Menu, 'qa/page/admin/menu'
     end
+
+    module Mattermost
+      autoload :Main, 'qa/page/mattermost/main'
+      autoload :Login, 'qa/page/mattermost/login'
+    end
   end
 
   ##