diff options
Diffstat (limited to 'tests/test-strerror.c')
| -rw-r--r-- | tests/test-strerror.c | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/tests/test-strerror.c b/tests/test-strerror.c index 11ab7e3..755ffba 100644 --- a/tests/test-strerror.c +++ b/tests/test-strerror.c @@ -1,5 +1,5 @@ /* Test of strerror() function. - Copyright (C) 2007-2010 Free Software Foundation, Inc. + Copyright (C) 2007-2015 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 @@ -12,8 +12,7 @@ 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, write to the Free Software Foundation, - Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + along with this program; if not, see <http://www.gnu.org/licenses/>. */ /* Written by Eric Blake <ebb9@byu.net>, 2007. */ @@ -33,25 +32,44 @@ main (void) { char *str; + errno = 0; str = strerror (EACCES); ASSERT (str); ASSERT (*str); + ASSERT (errno == 0); + errno = 0; str = strerror (ETIMEDOUT); ASSERT (str); ASSERT (*str); + ASSERT (errno == 0); + errno = 0; str = strerror (EOVERFLOW); ASSERT (str); ASSERT (*str); + ASSERT (errno == 0); + /* POSIX requires strerror (0) to succeed. Reject use of "Unknown + error", but allow "Success", "No error", or even Solaris' "Error + 0" which are distinct patterns from true out-of-range strings. + http://austingroupbugs.net/view.php?id=382 */ + errno = 0; str = strerror (0); ASSERT (str); ASSERT (*str); - + ASSERT (errno == 0); + ASSERT (strstr (str, "nknown") == NULL); + ASSERT (strstr (str, "ndefined") == NULL); + + /* POSIX requires strerror to produce a non-NULL result for all + inputs; as an extension, we also guarantee a non-empty result. + Reporting EINVAL is optional. */ + errno = 0; str = strerror (-3); ASSERT (str); ASSERT (*str); + ASSERT (errno == 0 || errno == EINVAL); return 0; } |