       it 'returns expected base number of ledges', ->
         expect(state.numLedgeRows).toBe 23
 
-    describe '_addLedgeDifficulty', ->
+    describe '#_addLedgeDifficulty', ->
       ledge = null
       vars = { numLedgeRows: 23 }
 


        expect(ledge.start).toBe 7

    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()
