X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=tests%2Ftest-fseeko.c;h=ae9ccef51db053fa6b263c92c09405f78b0099a0;hb=cd56634a4a8179fd5a4419fbb3e27211b042ab1c;hp=1b4c9e8d1e46192009e0cc6523d1e2b21e2db5e4;hpb=781e3fd7df31598e954e82464faf8c69cd3fbeec;p=gnulib.git
diff --git a/tests/test-fseeko.c b/tests/test-fseeko.c
index 1b4c9e8d1..ae9ccef51 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) 2007-2014 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
@@ -12,23 +12,63 @@
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 we are not using the gnulib fseek module. */
+#define _GL_NO_LARGE_FILES
#include
-/* Get off_t. */
-#include
+#include "signature.h"
+SIGNATURE_CHECK (fseeko, int, (FILE *, off_t, int));
+
+
+#include "macros.h"
+
+#ifndef FUNC_UNGETC_BROKEN
+# define FUNC_UNGETC_BROKEN 0
+#endif
int
-main ()
+main (int argc, char **argv _GL_UNUSED)
{
- off_t pos = fseeko (stdin, (off_t)0, SEEK_CUR);
- (void)pos;
-
+ /* 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, 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);
+ 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 (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;
}