mdw@git.distorted.org.uk Git - finally/blob - finally-test.c

   1 /* -*-c-*-
   2  *
   3  * Test program for using `finally.h'
   4  *
   5  * (c) 2023 Mark Wooding
   6  */
   7
   8 /*----- Licensing notice --------------------------------------------------*
   9  *
  10  * This file is part of the `Finally' package.
  11  *
  12  * Finally is free software: you can redistribute it and/or modify it
  13  * under the terms of the GNU Library General Public License as published
  14  * by the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * Finally is distributed in the hope that it will be useful, but WITHOUT
  18  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  19  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
  20  * License for more details.
  21  *
  22  * You should have received a copy of the GNU Library General Public
  23  * License along with Finally.  If not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  25  * USA.
  26  */
  27
  28 /* Attention!
  29  *
  30  * This file is also compiled as C++, so we must be careful to keep it in the
  31  * common subset of C and C++.  Anything language-specific needs to be split
  32  * off into its own separate source file.
  33  */
  34
  35 /*----- Header files ------------------------------------------------------*/
  36
  37 #include <stdio.h>
  38
  39 #include "finally.h"
  40 #include "finally-test.h"
  41
  42 /*----- Main code ---------------------------------------------------------*/
  43
  44 static int test_softball(void)
  45 {
  46   FINALLY({ STEP(1); });
  47
  48   STEP(0);
  49   return (2);
  50 }
  51
  52 static int test_ordering(void)
  53 {
  54   FINALLY({ STEP(2); });
  55   FINALLY({ STEP(1); });
  56
  57   STEP(0);
  58
  59   return (3);
  60 }
  61
  62 static int test_capture(void)
  63 {
  64   int n = -1; FINALLY({ STEP(n); });
  65
  66   STEP(0);
  67   n = 1; return (2);
  68 }
  69
  70 static int test_internal_block(void)
  71 {
  72   int i;
  73   FINALLY({ STEP(10); });
  74
  75   for (i = 0; i < 5; i++) {
  76     FINALLY({ STEP(2*i + 1); });
  77     STEP(2*i);
  78   }
  79   return (11);
  80 }
  81
  82 static int test_local_xfer(void)
  83 {
  84   int i, j;
  85
  86   STEP(0);
  87
  88   { FINALLY({ STEP(2); }); STEP(1); }
  89
  90   do {
  91     FINALLY({ STEP(4); });
  92     STEP(3);
  93     if (secretly_true) break;
  94     MISSTEP;
  95   } while (0);
  96
  97   for (i = 0; i < 5; i++) {
  98     FINALLY({
  99       if (i == 3) STEP(46);
 100       else STEP(12*i + 16);
 101     });
 102     STEP(12*i + 5);
 103     for (j = 0; j < 5; j++) {
 104       FINALLY({ STEP(12*i + 2*j + 7); });
 105       if (i == 3 && j == 1) { STEP(44); goto escape; }
 106       else if (j != 3) STEP(12*i + 2*j + 6);
 107       else { FINALLY({ STEP(12*i + 2*j + 6); }); continue; }
 108     }
 109   }
 110 escape:
 111   STEP(47);
 112
 113   return (48);
 114 }
 115
 116 #if defined(HAVE_FEXCEPTIONS)
 117 void try_catch_filling(unsigned f)
 118 {
 119   int outstep = f&TCF_THROW ? 12 : 5; FINALLY({ STEP(outstep); });
 120
 121   if (f&TCF_THROW) STEP(10);
 122   else STEP(2);
 123
 124   try_catch_inner(f);
 125   STEP(4);
 126 }
 127
 128 static int test_try_catch(void)
 129 {
 130   STEP(0);
 131   try_catch_outer(0);
 132   STEP(8);
 133   try_catch_outer(TCF_THROW);
 134   return (15);
 135 }
 136 #endif
 137
 138 int main(void)
 139 {
 140   init_test();
 141
 142 #define RUNTEST(name)                                                   \
 143         do { begin_test(#name); STEP(test_##name()); end_test(); } while (0)
 144 #define SKIPTEST(name, excuse) skip_test(#name, excuse)
 145
 146   RUNTEST(softball);
 147   RUNTEST(ordering);
 148   RUNTEST(local_xfer);
 149   RUNTEST(capture);
 150   RUNTEST(internal_block);
 151 #if defined(HAVE_FEXCEPTIONS)
 152   RUNTEST(try_catch);
 153 #else
 154   SKIPTEST(try_catch, "no C++ compiler or no exception-handling support");
 155 #endif
 156
 157 #undef RUNTEST
 158 #undef SKIPTEST
 159
 160   return (test_report());
 161 }
 162
 163 /*----- That's all, folks -------------------------------------------------*/