kc3-lang/gnulib/tests/test-random_r.c

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• Hash : 3a5f5178
  Author :
  Date : 2024-05-18T21:32:01
  

  tests: Support showing all assertion failures, not just the first one.
  
  * tests/macros.h (CONTINUE_AFTER_ASSERT): New macro.
  (test_exit_status): New variable.
  (ASSERT, ASSERT_NO_STDIO): If CONTINUE_AFTER_ASSERT is 1, set
  test_exit_status instead of aborting.
  * tests/**/test-*.{c,h,cc} (main): Instead of exiting with exit code 0,
  exit with exit code test_exit_status.
  * tests/test-spawn-pipe-child.c: Undefine CONTINUE_AFTER_ASSERT.
  * tests/uninorm/test-nf*.c: Include macros.h.
  * tests/uninorm/test-u32-nf*-big.c: Likewise.
  * tests/random*.c: Define NO_MAIN_HERE.
  

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• tests/test-random_r.c

• /* Test random_r.
     Copyright (C) 2008-2024 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  
  #include <config.h>
  
  #include <stdlib.h>
  
  #include "signature.h"
  SIGNATURE_CHECK (srandom_r, int, (unsigned int, struct random_data *));
  SIGNATURE_CHECK (initstate_r, int, (unsigned int, char *, size_t,
                                      struct random_data *));
  SIGNATURE_CHECK (setstate_r, int, (char *, struct random_data *));
  SIGNATURE_CHECK (random_r, int, (struct random_data *, int32_t *));
  
  #include <time.h>
  
  #include "macros.h"
  
  /* Note: This test crashes on glibc/SPARC systems.
     Reported at <https://sourceware.org/bugzilla/show_bug.cgi?id=30584>.  */
  
  static int
  test_failed (int alignment)
  {
    struct random_data rand_state;
    char buf[128 + sizeof (int32_t)];
    unsigned int i;
    unsigned int n_big = 0;
  
    rand_state.state = NULL;
    if (initstate_r (time (NULL), buf + alignment, sizeof buf - alignment,
                     &rand_state))
      return 1;
    for (i = 0; i < 1000; i++)
      {
        int32_t r;
        ASSERT (random_r (&rand_state, &r) == 0);
        ASSERT (0 <= r);
        if (RAND_MAX / 2 < r)
          ++n_big;
      }
  
    /* Fail if none of the numbers were larger than RAND_MAX / 2.  */
    return !n_big;
  }
  
  int
  main ()
  {
    int alignment;
    for (alignment = 0; alignment < sizeof (int32_t); alignment++)
      if (test_failed (alignment))
        return 1;
    return test_exit_status;
  }
  

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