X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=tests%2Ftest-fseek.c;h=46d5c8a961b457c179c69793169745c11859265a;hb=b187ff0528e2a081392a834e684d1d0c161708a7;hp=5a0b47a7970f9521f37847bfd4ca4ca10a974c15;hpb=bb9cffd58369d44fb36c7e4f20c73339d3525fd4;p=gnulib.git
diff --git a/tests/test-fseek.c b/tests/test-fseek.c
index 5a0b47a79..46d5c8a96 100644
--- a/tests/test-fseek.c
+++ b/tests/test-fseek.c
@@ -1,10 +1,10 @@
/* Test of fseek() function.
- Copyright (C) 2007 Free Software Foundation, Inc.
+ Copyright (C) 2007, 2008, 2009, 2010 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
@@ -12,19 +12,59 @@
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
+/* None of the files accessed by this test are large, so disable the
+ fseek link warning if the user requested GNULIB_POSIXCHECK. */
+#define _GL_NO_LARGE_FILES
#include
+#include "signature.h"
+SIGNATURE_CHECK (fseek, int, (FILE *, long, int));
+
+#include "macros.h"
+
+#ifndef FUNC_UNGETC_BROKEN
+# define FUNC_UNGETC_BROKEN 0
+#endif
+
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;
- return fseek (stdin, 0, SEEK_CUR) != expected;
+ ASSERT (fseek (stdin, 0, SEEK_CUR) == expected);
+ if (argc > 1)
+ {
+ /* Test that fseek discards previously read ungetc data. */
+ int ch = fgetc (stdin);
+ ASSERT (ch == '#');
+ ASSERT (ungetc (ch, stdin) == ch);
+ ASSERT (fseek (stdin, 2, SEEK_SET) == 0);
+ ch = fgetc (stdin);
+ ASSERT (ch == '/');
+ if (2 < argc)
+ {
+ if (FUNC_UNGETC_BROKEN)
+ {
+ fputs ("Skipping test: ungetc cannot handle arbitrary bytes\n",
+ stderr);
+ return 77;
+ }
+ /* Test that fseek discards random ungetc data. */
+ ASSERT (ungetc (ch ^ 0xff, stdin) == (ch ^ 0xff));
+ }
+ ASSERT (fseek (stdin, 0, SEEK_END) == 0);
+ ASSERT (fgetc (stdin) == EOF);
+ /* Test that fseek resets end-of-file marker. */
+ ASSERT (feof (stdin));
+ ASSERT (fseek (stdin, 0, SEEK_END) == 0);
+ ASSERT (!feof (stdin));
+ }
+ return 0;
}