application-test.coffee

`import { moduleFor, test } from 'ember-qunit'`

moduleFor 'serializer:application', 'Unit | Serializer | application',
  needs: []

  beforeEach: ->
    @TestModel = DS.Model.extend
      name: DS.attr('string')
      updatedAt: DS.attr('date')

test 'it removes updated_at when saving', (assert) ->
  serializer       = @subject()
  internalModel    = new DS.InternalModel(@TestModel, null, @container, {})
  snapshot         = new DS.Snapshot(internalModel)
  serializedRecord = serializer.serialize(snapshot)

  assert.notOk serializedRecord.data.attributes.hasOwnProperty('updated_at')