Refactor document views specs

https://www.pivotaltracker.com/story/show/73291456
Summary of changes: https://docs.google.com/document/d/13TNmNkD6__d-7TbnvkNUV8yvCY8bc_SGa6ewxewrciE/edit?usp=sharing
I would suggest using `build` instead of `create` to avoid touching the database and assign an `id` manually