Mercurial > hg > octave-nkf > gnulib-hg
changeset 15718:8240f09ff8de
fflush tests: EBADF tests.
* tests/test-fflush.c: Include errno.h, macros.h.
(main): Add tests for EBADF.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Tue, 20 Sep 2011 23:10:44 +0200 |
parents | feabaca91eb5 |
children | 5adced00bbec |
files | ChangeLog tests/test-fflush.c |
diffstat | 2 files changed, 47 insertions(+), 0 deletions(-) [+] |
line wrap: on
line diff
--- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,9 @@ 2011-09-20 Bruno Haible <bruno@clisp.org> + fflush tests: EBADF tests. + * tests/test-fflush.c: Include errno.h, macros.h. + (main): Add tests for EBADF. + ftello tests: EBADF tests. * tests/test-ftello4.sh: New file. * tests/test-ftello4.c: New file.
--- a/tests/test-fflush.c +++ b/tests/test-fflush.c @@ -26,8 +26,11 @@ #include "signature.h" SIGNATURE_CHECK (fflush, int, (FILE *)); +#include <errno.h> #include <unistd.h> +#include "macros.h" + int main (void) { @@ -46,6 +49,7 @@ /* Test fflush. */ f = fopen ("test-fflush.txt", "r"); + ASSERT (f != NULL); fd = fileno (f); if (!f || 0 > fd || fread (buffer, 1, 5, f) != 5) { @@ -141,6 +145,45 @@ return 1; } fclose (f); + + /* Test that fflush() sets errno if someone else closes the stream + fd behind the back of stdio. */ + { + FILE *fp = fopen ("test-fflush.txt", "w"); + ASSERT (fp != NULL); + fputc ('x', fp); + ASSERT (close (fileno (fp)) == 0); + errno = 0; + ASSERT (fflush (fp) == EOF); + ASSERT (errno == EBADF); + fclose (fp); + } + + /* Test that fflush() sets errno if the stream was constructed with + an invalid file descriptor. */ + { + FILE *fp = fdopen (-1, "w"); + if (fp != NULL) + { + fputc ('x', fp); + errno = 0; + ASSERT (fflush (fp) == EOF); + ASSERT (errno == EBADF); + } + } + { + FILE *fp = fdopen (99, "w"); + if (fp != NULL) + { + fputc ('x', fp); + errno = 0; + ASSERT (fflush (fp) == EOF); + ASSERT (errno == EBADF); + } + } + + /* Clean up. */ unlink ("test-fflush.txt"); + return 0; }