src/beh_parser_tb.vhd

   1 library ieee;
   2 use ieee.std_logic_1164.all;
   3 use ieee.numeric_std.all;
   4 use work.gen_pkg.all;
   5
   6 entity beh_parser_tb is
   7 end entity beh_parser_tb;
   8
   9 architecture sim of beh_parser_tb is
  10         -- system
  11         signal sys_clk, sys_res_n : std_logic;
  12         -- history
  13         signal p_rget, p_rdone, p_wtake, p_wdone, p_finished : std_logic;
  14         signal p_read, p_write : hbyte;
  15         --scanner
  16         signal do_it : std_logic;
  17         signal finished : std_logic;
  18
  19         signal stop : boolean := false;
  20 begin
  21         inst : parser
  22         port map (
  23                 sys_clk => sys_clk,
  24                 sys_res_n => sys_res_n,
  25                 -- history
  26                 p_rget => p_rget,
  27                 p_rdone => p_rdone,
  28                 p_read => p_read,
  29                 p_wtake => p_wtake,
  30                 p_wdone => p_wdone,
  31                 p_write => p_write,
  32                 p_finished => p_finished,
  33                 -- Scanner
  34                 do_it => do_it,
  35                 finished => finished
  36         );
  37
  38         process
  39         begin
  40                 sys_clk <= '0';
  41                 wait for 15 ns;
  42                 sys_clk <= '1';
  43                 wait for 15 ns;
  44                 if stop = true then
  45                         wait;
  46                 end if;
  47         end process;
  48
  49         process
  50                 -- textio stuff
  51                 use std.textio.all;
  52                 file f : text open read_mode is "../../src/parser.test";
  53                 variable l : line;
  54
  55                 variable input : hstring;
  56                 variable expectedresult : hstring;
  57                 variable realresult : hstring;
  58                 variable hstrtmp : hstring;
  59
  60                 variable checkall : boolean := true;
  61                 variable run_tc : boolean := true;
  62                 variable i, j, k, y : natural;
  63         begin
  64                 -- init & reset
  65                 sys_res_n <= '0';
  66                 p_rdone <= '0';
  67                 p_wdone <= '0';
  68                 p_read <= (others => '0');
  69                 do_it <= '0';
  70
  71                 icwait(sys_clk, 5);
  72                 sys_res_n <= '1';
  73
  74                 i := 1;
  75                 f_loop : while not endfile(f) loop
  76                         realresult := (HSPALTE_MAX+1 => nul, others => ' ');
  77
  78                         f1_loop : while not endfile(f) loop
  79                                 readline (f, l);
  80                                 input := (others => nul);
  81                                 if (l'length <= HSPALTE_MAX+1) then
  82                                         input(1 to l'length) := l.all;
  83                                         if (input(1) = '#') then
  84                                                 next f1_loop;
  85                                         else
  86                                                 exit f1_loop;
  87                                         end if;
  88                                 else
  89                                         report "fehler in parser.test: eingabe zu lange in testfall " & natural'image(i);
  90                                         next f_loop;
  91                                 end if;
  92                         end loop f1_loop;
  93
  94                         f2_loop : while not endfile(f) loop
  95                                 readline (f, l);
  96                                 expectedresult := (others => nul);
  97                                 if (l'length <= HSPALTE_MAX+1) then
  98                                         expectedresult(1 to l'length) := l.all;
  99                                         if (expectedresult(1) = '#') then
 100                                                 next f2_loop;
 101                                         else
 102                                                 y := l'length;
 103                                                 exit f2_loop;
 104                                         end if;
 105                                 else
 106                                         report "fehler in parser.test: eingabe zu lange in testfall " & natural'image(i);
 107                                         next f_loop;
 108                                 end if;
 109                         end loop f2_loop;
 110
 111                         -- ergebnis string richtig formatieren
 112                         hstrtmp := expectedresult;
 113                         expectedresult := (HSPALTE_MAX+1 => nul, others => ' ');
 114                         for x in 1 to HSPALTE_MAX loop
 115                                 if hstrtmp(x) /= nul then
 116                                         expectedresult((HSPALTE_MAX-y) + x) := hstrtmp(x);
 117                                 end if;
 118                         end loop;
 119
 120
 121                         report "testcase(" & natural'image(i) & ").input: " & input;
 122                         report "testcase(" & natural'image(i) & ").expectedresult: " & expectedresult;
 123                         i := i + 1;
 124
 125                         icwait(sys_clk, 5);
 126                         do_it <= '1';
 127                         run_tc := true;
 128                         j := 1; k := HSPALTE_MAX;
 129
 130                         while run_tc loop
 131                                 wait on p_rget, p_wtake, p_finished, finished;
 132                                 icwait(sys_clk, 2);
 133
 134                                 if p_rget = '1' then
 135                                         p_read <= hbyte( to_unsigned(character'pos(input(j)),8) );
 136                                         p_rdone <= '1';
 137                                         j := j + 1;
 138                                 end if;
 139                                 if p_rget = '0' then
 140                                         p_rdone <= '0';
 141                                 end if;
 142
 143                                 if p_wtake = '1' then
 144                                         realresult(k) := character'val(to_integer(unsigned(p_write)));
 145                                         p_wdone <= '1';
 146                                         k := k - 1;
 147                                 end if;
 148                                 if p_wtake = '0' then
 149                                         p_wdone <= '0';
 150                                 end if;
 151
 152                                 if p_finished = '1' or finished = '1' then
 153                                         run_tc := false;
 154                                 end if;
 155                         end loop;
 156
 157                         do_it <= '0';
 158                         report "realresult                : " & realresult;
 159                         if realresult /= expectedresult then
 160                                 checkall := false;
 161                         end if;
 162                         report "==================";
 163                 end loop f_loop;
 164
 165                 if checkall then
 166                         report "alle testfaelle des Parser waren erfolgreich!";
 167                 else
 168                         report "nicht alle testfaelle des Parsers waren erfolgreich!";
 169                 end if;
 170                 stop <= true;
 171                 wait;
 172         end process;
 173 end architecture sim;