//
// Title       : Calendar test fixture
// Design      : Homework 4 Calendar (Problem 1)
// Author      : Gaetano Borriello
// Company     : CSE 370
//
//-------------------------------------------------------------------------------------------------
//
// File        : cal_tf.v
//
// Description : This test fixture tests the calendar modules that computes the day of the year 
//               given month, day, and leap year flag.
//-------------------------------------------------------------------------------------------------
`timescale 1ns / 1ns


module cal_tf (MONTH, DAY, LEAP_YEAR, DAY_OF_YEAR, ERROR);

output [3:0] MONTH;		// Data input for month of the year	
output [4:0] DAY;		// Data input for day of the month 
output       LEAP_YEAR;		// Data input for leap year flag 
input  [9:0] DAY_OF_YEAR;	// Results from calendar subsystem
input        ERROR;		// Error flag from calendar subsystem

reg    [3:0] MONTH;		// Data input 	  
reg    [4:0] DAY;		// Data input  
reg          LEAP_YEAR;		// Data input	  

integer	errors;

initial	begin  
	
	// Perform 5 test cases and count errors

	errors = 0;
	#10
	
	MONTH =  2;  DAY = 29;  LEAP_YEAR = 1;
	#10
	if ( !(DAY_OF_YEAR == 60 & ERROR == 0) ) begin
		$display("***Error*** MONTH:%d, DAY:%d, LEAP_YEAR:%b, DAY_OF_YEAR:%d, ERROR:%b", MONTH, DAY, LEAP_YEAR, DAY_OF_YEAR, ERROR);
		errors = errors + 1;
	end

	MONTH =  4;  DAY = 15;  LEAP_YEAR = 0;
	#10
	if ( !(DAY_OF_YEAR == 105 & ERROR == 0) ) begin
		$display("***Error*** MONTH:%d, DAY:%d, LEAP_YEAR:%b, DAY_OF_YEAR:%d, ERROR:%b", MONTH, DAY, LEAP_YEAR, DAY_OF_YEAR, ERROR);
		errors = errors + 1;
	end

	MONTH = 11;  DAY = 31;  LEAP_YEAR = 0;
	#10
	if ( (ERROR == 0) ) begin
		$display("***Error*** MONTH:%d, DAY:%d, LEAP_YEAR:%b, DAY_OF_YEAR:%d, ERROR:%b", MONTH, DAY, LEAP_YEAR, DAY_OF_YEAR, ERROR);
		errors = errors + 1;
	end

	MONTH =  2;  DAY =  3;  LEAP_YEAR = 0;
	#10
	if ( !(DAY_OF_YEAR == 34 & ERROR == 0) ) begin
		$display("***Error*** MONTH:%d, DAY:%d, LEAP_YEAR:%b, DAY_OF_YEAR:%d, ERROR:%b", MONTH, DAY, LEAP_YEAR, DAY_OF_YEAR, ERROR);
		errors = errors + 1;
	end

	MONTH = 13;  DAY =  1;  LEAP_YEAR = 1;
	#10
	if ( (ERROR == 0) ) begin
		$display("***Error*** MONTH:%d, DAY:%d, LEAP_YEAR:%b, DAY_OF_YEAR:%d, ERROR:%b", MONTH, DAY, LEAP_YEAR, DAY_OF_YEAR, ERROR);
		errors = errors + 1;
	end

	if (errors == 0) $display("Test passed - No errors!!");
		else $display("**** %d Errors****", errors);

end
	
endmodule