Group tests for Question::Base#transition into a context
Group tests for Question::Base#transition into a context

And improve the test names.

aledelcueto/smart-answers,aledelcueto/smart-answers,stwalsh/smart-answers,stwalsh/smart-answers,alphagov/smart-answers,alphagov/smart-answers,aledelcueto/smart-answers,aledelcueto/smart-answers,alphagov/smart-answers,stwalsh/smart-answers,alphagov/smart-answers,stwalsh/smart-answers