Added test for chunker.
Added test for chunker.

NeuralProsthesisLab/unlock,NeuralProsthesisLab/unlock,NeuralProsthesisLab/unlock,NeuralProsthesisLab/unlock,NeuralProsthesisLab/unlock,NeuralProsthesisLab/unlock,NeuralProsthesisLab/unlock