X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=tests%2Ftest-ftell.c;h=54ede0515c3f545b27e97bfb636d0b46978684ac;hb=69be788393cc7d52413d9d2782117326d4c15899;hp=b42fbce858608c0b5adf34aeff06e4e4c883d408;hpb=2e7980e7a83a290bfaf0638bd95a9cbfeec0f67d;p=gnulib.git
diff --git a/tests/test-ftell.c b/tests/test-ftell.c
index b42fbce85..54ede0515 100644
--- a/tests/test-ftell.c
+++ b/tests/test-ftell.c
@@ -1,10 +1,10 @@
/* Test of ftell() function.
- Copyright (C) 2007 Free Software Foundation, Inc.
+ Copyright (C) 2007-2011 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 +12,96 @@
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
+#include "signature.h"
+SIGNATURE_CHECK (ftell, long, (FILE *));
+
+#include "binary-io.h"
+#include "macros.h"
+
+#ifndef FUNC_UNGETC_BROKEN
+# define FUNC_UNGETC_BROKEN 0
+#endif
+
int
main (int argc, char **argv)
{
+ int ch;
/* Assume stdin is seekable iff argc > 1. */
- int expected = argc > 1 ? 0 : -1;
- return ftell (stdin) != expected;
+ if (argc == 1)
+ {
+ ASSERT (ftell (stdin) == -1);
+ return 0;
+ }
+
+ /* mingw ftell is unreliable on text mode input. */
+ SET_BINARY (0);
+
+ /* Simple tests. */
+ ASSERT (ftell (stdin) == 0);
+
+ ch = fgetc (stdin);
+ ASSERT (ch == '#');
+ ASSERT (ftell (stdin) == 1);
+
+ /* Test ftell after ungetc of read input. */
+ ch = ungetc ('#', stdin);
+ ASSERT (ch == '#');
+ ASSERT (ftell (stdin) == 0);
+
+ ch = fgetc (stdin);
+ ASSERT (ch == '#');
+ ASSERT (ftell (stdin) == 1);
+
+ /* Test ftell after fseek. */
+ ASSERT (fseek (stdin, 2, SEEK_SET) == 0);
+ ASSERT (ftell (stdin) == 2);
+
+ /* Test ftell after random ungetc. */
+ ch = fgetc (stdin);
+ ASSERT (ch == '/');
+ ch = ungetc ('@', stdin);
+ ASSERT (ch == '@');
+ ASSERT (ftell (stdin) == 2);
+
+ ch = fgetc (stdin);
+ ASSERT (ch == '@');
+ ASSERT (ftell (stdin) == 3);
+
+ if (2 < argc)
+ {
+ if (FUNC_UNGETC_BROKEN)
+ {
+ fputs ("Skipping test: ungetc cannot handle arbitrary bytes\n",
+ stderr);
+ return 77;
+ }
+ /* Test ftell after ungetc without read. */
+ ASSERT (fseek (stdin, 0, SEEK_CUR) == 0);
+ ASSERT (ftell (stdin) == 3);
+
+ ch = ungetc ('~', stdin);
+ ASSERT (ch == '~');
+ ASSERT (ftell (stdin) == 2);
+ }
+
+#if !defined __MINT__ /* FreeMiNT has problems seeking past end of file */
+ /* Test ftell beyond end of file. */
+ ASSERT (fseek (stdin, 0, SEEK_END) == 0);
+ ch = ftell (stdin);
+ ASSERT (fseek (stdin, 10, SEEK_END) == 0);
+ ASSERT (ftell (stdin) == ch + 10);
+#endif
+
+ return 0;
}