X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=tests%2Ftest-fseeko.c;h=3a1383b3d335ac31a23d89485402b9684aba1cb1;hb=372854e7458969151cd1ec722670f17685479b20;hp=e33620f0bfb60bcaafd49e1bf083c0159df3d706;hpb=e461ff7387db733080824cb94b239d8d1d09c4f3;p=gnulib.git
diff --git a/tests/test-fseeko.c b/tests/test-fseeko.c
index e33620f0b..3a1383b3d 100644
--- a/tests/test-fseeko.c
+++ b/tests/test-fseeko.c
@@ -1,10 +1,10 @@
/* Test of fseeko() function.
- Copyright (C) 2007 Free Software Foundation, Inc.
+ Copyright (C) 2007, 2008 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
+ 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
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -12,25 +12,54 @@
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 . */
/* Written by Bruno Haible , 2007. */
#include
#include
+#include
-/* Get off_t. */
-#include
+#define ASSERT(expr) \
+ do \
+ { \
+ if (!(expr)) \
+ { \
+ fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
+ fflush (stderr); \
+ abort (); \
+ } \
+ } \
+ while (0)
int
main (int argc, char **argv)
{
- /* Assume stdin is seekable iff argc > 1. */
+ /* Assume stdin is non-empty, seekable, and starts with '#!/bin/sh'
+ iff argc > 1. */
int expected = argc > 1 ? 0 : -1;
/* Exit with success only if fseek/fseeko agree. */
- int r1 = fseeko (stdin, (off_t)0, SEEK_CUR);
- int r2 = fseek (stdin, (long)0, SEEK_CUR);
- return ! (r1 == r2 && r1 == expected);
+ int r1 = fseeko (stdin, 0, SEEK_CUR);
+ int r2 = fseek (stdin, 0, SEEK_CUR);
+ ASSERT (r1 == r2 && r1 == expected);
+ if (argc > 1)
+ {
+ /* Test that fseek discards previously read ungetc data. */
+ int ch = fgetc (stdin);
+ ASSERT (ch == '#');
+ ASSERT (ungetc (ch, stdin) == ch);
+ ASSERT (fseeko (stdin, 2, SEEK_SET) == 0);
+ /* Test that fseek discards random ungetc data. */
+ ch = fgetc (stdin);
+ ASSERT (ch == '/');
+ ASSERT (ungetc (ch ^ 0xff, stdin) == (ch ^ 0xff));
+ ASSERT (fseeko (stdin, 0, SEEK_END) == 0);
+ ASSERT (fgetc (stdin) == EOF);
+ /* Test that fseek resets end-of-file marker. */
+ ASSERT (feof (stdin));
+ ASSERT (fseeko (stdin, 0, SEEK_END) == 0);
+ ASSERT (!feof (stdin));
+ }
+ return 0;
}