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Add newline to last test in stdio-common/tst-put-error.c

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The newline ensures that the buffer is flushed and the test executes
as expected.
This commit is contained in:
Siddhesh Poyarekar 2012-12-06 11:10:18 +05:30
parent 17aa0516c8
commit 7728c57488
2 changed files with 16 additions and 1 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2012-12-06 Siddhesh Poyarekar <siddhesh@redhat.com>
* stdio-common/tst-put-error.c (do_test): Add newline to the
padded test to ensure flush.
2012-12-05 Jeff Law <law@redhat.com>
* sunrpc/etc.rpc (fedfs_admin): Add entry.

12
stdio-common/tst-put-error.c
View file

@ -34,20 +34,30 @@ do_test (void)
FILE *fp = fdopen (fd, "w");
if (fp == NULL)
error (EXIT_FAILURE, errno, "fdopen");
/* All of the tests below verify that flushing buffers result in failure of
the fprintf calls. We ensure that the buffer is flushed at the end of
each fprintf call by doing two things - setting the file pointer to
line-buffered so that it is flushed whenever it encounters a newline and
then ensuring that there is a newline in each of the format strings we
pass to fprintf. */
setlinebuf (fp);
close (fd);
unlink (tmpl);
int n = fprintf (fp, "hello world\n");
printf ("fprintf = %d\n", n);
if (n >= 0)
error (EXIT_FAILURE, 0, "first fprintf succeeded");
n = fprintf (fp, "hello world\n");
printf ("fprintf = %d\n", n);
if (n >= 0)
error (EXIT_FAILURE, 0, "second fprintf succeeded");
/* Padded printing takes a different code path. */
n = fprintf (fp, "%10000000s", "foo");
n = fprintf (fp, "%100s\n", "foo");
printf ("fprintf = %d\n", n);
if (n >= 0)
error (EXIT_FAILURE, 0, "padded fprintf succeeded");