 
         expect(ledge.start).toBe 7
 
-    describe '_addRow', ->
+    describe '#_addRow', ->
       vars =
         iColStart: 0
         iColEnd: 3

      it 'should have empty ledges array', ->
        expect(platforms.ledges).toEqual []

    describe '_createTileGeneratorState', ->
      state = null

      beforeEach -> state = platforms._createTileGeneratorState()

      it 'returns expected base number of ledges', ->
        expect(state.numLedgeRows).toBe 23

    describe '#_addLedgeDifficulty', ->
      ledge = null
      vars = { numLedgeRows: 23 }

