LCOV - code coverage report
Current view: top level - gltests - test-fdopen.c (source / functions) Hit Total Coverage
Test: GNU Libidn Lines: 5 7 71.4 %
Date: 2014-08-10 Functions: 1 1 100.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 3 6 50.0 %

           Branch data     Line data    Source code
       1                 :            : /* Test opening a stream with a file descriptor.
       2                 :            :    Copyright (C) 2011-2014 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 <http://www.gnu.org/licenses/>.  */
      16                 :            : 
      17                 :            : #include <config.h>
      18                 :            : 
      19                 :            : #include <stdio.h>
      20                 :            : 
      21                 :            : #include "signature.h"
      22                 :            : SIGNATURE_CHECK (fdopen, FILE *, (int, const char *));
      23                 :            : 
      24                 :            : #include <errno.h>
      25                 :            : #include <unistd.h>
      26                 :            : 
      27                 :            : #include "macros.h"
      28                 :            : 
      29                 :            : int
      30                 :          1 : main (void)
      31                 :            : {
      32                 :            :   /* Test behavior on failure.  POSIX makes it hard to check for
      33                 :            :      failure, since the behavior is not well-defined on invalid file
      34                 :            :      descriptors, so try fdopen 1000 times and if that's not enough to
      35                 :            :      fail due to EMFILE, so be it.  */
      36                 :            : 
      37                 :            :   int i;
      38         [ +  + ]:       1001 :   for (i = 0; i < 1000; i++)
      39                 :            :     {
      40                 :       1000 :       errno = 0;
      41         [ -  + ]:       1000 :       if (! fdopen (STDOUT_FILENO, "w"))
      42                 :            :         {
      43         [ #  # ]:          0 :           ASSERT (errno != 0);
      44                 :          0 :           break;
      45                 :            :         }
      46                 :            :     }
      47                 :            : 
      48                 :          1 :   return 0;
      49                 :            : }

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