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: 2015-03-02 11:46:03 Functions: 1 1 100.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* Test opening a stream with a file descriptor.
       2             :    Copyright (C) 2011-2015 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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