TEST: Write api tests for Novelty + Newt

[India]

As a developer, I want tests to make sure that the following operations work, so I can tell when I break something:

Create

• Novelty records can be added to the database
• Newt records can be added to the database
• Novelty and Newt records can be associated with each other, through the table novelty_newt
• a user cannot create Novelty groups having identical (case insensitive) names (but different users can each create a Novelty called, say, “Learn Python”)

Read

• all Novelty groups having a particular Newt can be retrieved
• all Newts belonging to a particular Novelty can be retrieved

Update

• a Novelty can be revised
• when a Newt is removed from a Novelty, the related novelty_newt row is also removed

Destroy

• when a Novelty is deleted, all related novelty_newt rows are also deleted