[PATCH] Increase the amount of data tested in stdio-common/tst-fwrite-pipe.c

[Florian Weimer]

* Stefan Liebler:

> The number of iterations and the length of the string are not high
> enough on some systems causing the test to return false-positives.
>
> Testcase stdio-common/tst-fwrite-bz29459.c was fixed in the same way in
> 1b6f868625403d6b7683af840e87d2b18d5d7731
> (Increase the amount of data tested in stdio-common/tst-fwrite-bz29459.c, 2025-02-14)
>
> Testcases stdio-common/tst-fwrite-bz29459.c and stdio-common/tst-fwrite-pipe.c
> were introcued in 596a61cf6b51ce2d58b8ca4e1d1f4fdfe1440dbc
> (libio: Start to return errors when flushing fwrite's buffer [BZ #29459], 2025-01-28)
> ---
>  stdio-common/tst-fwrite-pipe.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/stdio-common/tst-fwrite-pipe.c b/stdio-common/tst-fwrite-pipe.c
> index a6119125b2..ce1a92b384 100644
> --- a/stdio-common/tst-fwrite-pipe.c
> +++ b/stdio-common/tst-fwrite-pipe.c
> @@ -27,7 +27,7 @@
>  /* Usually this test reproduces in a few iterations.  However, keep a high
>     number of iterations in order to avoid return false-positives due to an
>     overwhelmed/slow system.  */
> -#define ITERATIONS 5000
> +#define ITERATIONS 500000
>  
>  #define BUFFERSIZE 20
>  
> @@ -71,7 +71,7 @@ do_test (void)
>      {
>        /* Ensure the string we send has a new line because we're dealing
>           with a lined-buffered stream.  */
> -      const char *s = "hello\n";
> +      const char *s = "hello world\n";
>        size_t len = strlen (s);
>        int i;

Looks okay, thanks.