// DESCRIPTION: Verilator: Verilog Test module
//
// Use this file as a template for submitting bugs, etc.
// This module takes a single clock input, and should either
//      $write("*-* All Finished *-*\n");
//      $finish;
// on success, or $stop.
//
// The code as shown applies a random vector to the Test
// module, then calculates a CRC on the Test module's outputs.
//
// **If you do not wish for your code to be released to the public
// please note it here, otherwise:**
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2023 by Wilson Snyder.
// SPDX-License-Identifier: CC0-1.0

module t(/*AUTOARG*/
   // Inputs
   clk
   );
   input clk;

   integer cyc = 0;

   string s, s2;

   // Test loop
   always @ (posedge clk) begin
      cyc <= cyc + 1;
      s = {s2, {cyc{"*"}}};
      if (cyc != s.len()) $stop;
      if (cyc == 0 && s != "") $stop;
      if (cyc == 1 && s != "*") $stop;
      if (cyc == 2 && s != "**") $stop;
      if (cyc == 3 && s != "***") $stop;
      if (cyc == 4 && s != "****") $stop;
      if (cyc == 5 && s != "*****") $stop;
      if (cyc == 5) begin
         $write("*-* All Finished *-*\n");
         $finish;
      end
   end
endmodule