Backend unit tests

[jmdobry]

• - User Controller
  • - user.user
  • - user.repos
• - Repos Controller
  • - repos.findOne
  • - repos.findAll
  • - repos.search
  • - repos.updateOne
  • - repos.destroyOne
  • - repos.hook
• - Models Controller
  • - models.findOne
  • - models.findAll
  • - models.createOne
  • - models.updateOne
  • - models.destroyOne
  • - models.trainOne
• - Base Model
  • - Base#get
  • - Base#set
  • - Base#toJSON
  • - Base#save
  • - Base.findOne
  • - Base.findAll
  • - Base.getAll
  • - Base.destroyOne
  • - Base.destroyAll
• - Model Model
  • - Model.destroyOne
  • - Model.findOne
  • - Model.trainOne
• - Repo Model
  • - Repo.serializeRepo
• - User Model
  • - User.safeToJSON
• - github
  • - findRepoById
  • - searchForRepo
  • - getReposForUser
  • - getIssuesForRepo
  • - findOrCreateHook
  • - deleteHook
  • - addLabelsToIssue
• - prediction
  • - analyzeModelById
  • - getModelById
  • - destroyModelById
  • - trainModel
  • - predict
  • - createExample
  • - createExamples