       pinball.deactivate 'a'
 
       expect(pinball.get('a')).toEqual('inactive')
+
+    it 'adds without-feature class to css', ->
+      pinball.add
+        feature_a: 'active'
+      pinball.activate 'feature_a'
+      expect(document.documentElement.className).toEqual(' without-feature-a')
 
   describe '#isActive', ->
     beforeEach ->


      expect(pinball.get('a')).toEqual('disabled')

  describe '#deactivate', ->
    it 'makes an active feature inactive', ->
      pinball.add


  beforeEach ->
    pinball.reset()
    document.documentElement.className = ''

  describe 'initialize', ->
    it 'is defined', ->
