1  /* Test of error.h functions.
       2     Copyright (C) 2023 Free Software Foundation, Inc.
       3  
       4     This program is free software: you can redistribute it and/or modify
       5     it under the terms of the GNU General Public License as published by
       6     the Free Software Foundation, either version 3 of the License, or
       7     (at your option) any later version.
       8  
       9     This program is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      12     GNU General Public License for more details.
      13  
      14     You should have received a copy of the GNU General Public License
      15     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      16  
      17  /* Written by Bruno Haible <bruno@clisp.org>, 2023.  */
      18  
      19  #include <config.h>
      20  
      21  #include "error.h"
      22  
      23  #include <errno.h>
      24  
      25  #include "macros.h"
      26  
      27  /* Custom function to not show the program name in error messages.  */
      28  static void
      29  print_no_progname (void)
      30  {
      31  }
      32  
      33  int
      34  main ()
      35  {
      36    /* Test error() function with zero STATUS and zero ERRNUM.  */
      37    error (0, 0, "bummer");
      38    /* With format string arguments.  */
      39    errno = EINVAL; /* should be ignored */
      40    error (0, 0, "Zonk %d%d%d is too large", 1, 2, 3);
      41    /* With non-ASCII characters.  */
      42    error (0, 0, "Pokémon started");
      43    /* Verify error_message_count.  */
      44    ASSERT (error_message_count == 3);
      45  
      46    /* Test error_at_line() function with zero STATUS and zero ERRNUM.  */
      47    error_at_line (0, 0, "d1/foo.c", 10, "invalid blub");
      48    error_at_line (0, 0, "d1/foo.c", 10, "invalid blarn");
      49    /* Verify error_message_count.  */
      50    ASSERT (error_message_count == 5);
      51  
      52    /* Test error_one_per_line.  */
      53    error_one_per_line = 1;
      54    error_at_line (0, 0, "d1/foo.c", 10, "unsupported glink");
      55    /* Another line number.  */
      56    error_at_line (0, 0, "d1/foo.c", 13, "invalid brump");
      57    /* Another file name.  */
      58    error_at_line (0, 0, "d2/foo.c", 13, "unsupported flinge");
      59    /* Same file name and same line number => message not shown.  */
      60    error_at_line (0, 0, "d2/foo.c", 13, "invalid bark");
      61    /* Verify error_message_count.  */
      62    ASSERT (error_message_count == 8);
      63    error_one_per_line = 0;
      64  
      65    /* Test error_print_progname.  */
      66    error_print_progname = print_no_progname;
      67    error (0, 0, "hammer");
      68    error (0, 0, "boing %d%d%d is too large", 1, 2, 3);
      69    #if 0
      70    /* The documentation does not describe the output if the file name is NULL. */
      71    error_at_line (0, 0, NULL, 42, "drummer too loud");
      72    #endif
      73    error_at_line (0, 0, "d2/bar.c", 11, "bark too loud");
      74    /* Verify error_message_count.  */
      75    ASSERT (error_message_count == 11);
      76    error_print_progname = NULL;
      77  
      78    /* Test error() function with nonzero ERRNUM.  */
      79    errno = EINVAL; /* should be ignored */
      80    error (0, EACCES, "can't steal");
      81    /* Verify error_message_count.  */
      82    ASSERT (error_message_count == 12);
      83  
      84    /* Test error() function with nonzero STATUS.  */
      85    error (4, 0, "fatal error");
      86  
      87    return 0;
      88  }