//`include "fsm.v"

module testbench;
   wire displayCoin, 
        outputWater, 
        outputOrange, 
	outputCoin;
   
   reg coinInserted, 
       clearPressed, 
       waterChosen, 
       orangeChosen, 
       waterEmpty, 
       orangeEmpty;

   reg clk;


   // create waveform file
   initial begin
        $display("start simulation");
	$dumpfile("wave.vcd");
	$dumpvars(0,displayCoin);
        $dumpvars(0,outputWater);
        $dumpvars(0,outputOrange); 
	$dumpvars(0,outputCoin);
        $dumpvars(0,coinInserted);
        $dumpvars(0,clearPressed); 
        $dumpvars(0,waterChosen);
        $dumpvars(0,orangeChosen); 
        $dumpvars(0,waterEmpty); 
        $dumpvars(0,orangeEmpty);
        $dumpvars(0,f);
	#10000 $finish;
   end
   
   fsm f (.clk(clk),
	  .dc(displayCoin), 
	  .ow(outputWater),
	  .oo(outputOrange),
	  .oc(outputCoin),
	  .coin(coinInserted),
	  .clear(clearPressed),
	  .w(waterChosen),
	  .o(orangeChosen),
	  .we(waterEmpty),
	  .oe(orangeEmpty));

   initial begin
      clk = 0;
      forever begin
	 #50 clk = 1;
	 #50 clk = 0;
      end
   end
   
   initial begin
      coinInserted = 0;
      clearPressed = 0;
      waterChosen  = 0;
      orangeChosen = 0;
      waterEmpty   = 0;
      orangeEmpty  = 0;

      #500 coinInserted = 1;
      #100 coinInserted = 0;
      #400 waterChosen = 1;
      #100 waterChosen = 0;

      #500  coinInserted = 1;
      #100  coinInserted = 0;
      #400  clearPressed = 1;
      #200  clearPressed = 0;
      
   end

endmodule // testbench