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

• /* Test of opening a file stream.
     Copyright (C) 2007-2024 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/>.  */
  
  /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
  
  #include <config.h>
  
  #include <stdio.h>
  
  #include "signature.h"
  SIGNATURE_CHECK (freopen, FILE *, (char const *, char const *, FILE *));
  
  #include <errno.h>
  #include <unistd.h>
  
  #include "macros.h"
  
  int
  main ()
  {
    const char *filename = "test-freopen.txt";
  
    close (STDIN_FILENO);
    ASSERT (freopen ("/dev/null", "r", stdin) != NULL);
    ASSERT (getchar () == EOF);
    ASSERT (!ferror (stdin));
    ASSERT (feof (stdin));
  
  #if 0 /* freopen (NULL, ...) is unsupported on most platforms.  */
    /* Test that freopen() sets errno if someone else closes the stream
       fd behind the back of stdio.  */
    {
      FILE *fp = fopen (filename, "w+");
      ASSERT (fp != NULL);
      ASSERT (close (fileno (fp)) == 0);
      errno = 0;
      ASSERT (freopen (NULL, "r", fp) == NULL);
      perror("freopen");
      ASSERT (errno == EBADF);
      fclose (fp);
    }
  
    /* Test that freopen() sets errno if the stream was constructed with
       an invalid file descriptor.  */
    {
      FILE *fp = fdopen (-1, "w+");
      if (fp != NULL)
        {
          errno = 0;
          ASSERT (freopen (NULL, "r", fp) == NULL);
          ASSERT (errno == EBADF);
          fclose (fp);
        }
    }
    {
      FILE *fp;
      close (99);
      fp = fdopen (99, "w+");
      if (fp != NULL)
        {
          errno = 0;
          ASSERT (freopen (NULL, "r", fp) == NULL);
          ASSERT (errno == EBADF);
          fclose (fp);
        }
    }
  #endif
  
    /* Clean up.  */
    unlink (filename);
  
    return test_exit_status;
  }
  

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