diff options
Diffstat (limited to 'gnulib/tests/test-fseeko.c')
| -rw-r--r-- | gnulib/tests/test-fseeko.c | 54 |
1 files changed, 31 insertions, 23 deletions
diff --git a/gnulib/tests/test-fseeko.c b/gnulib/tests/test-fseeko.c index 25289cef0..3a1383b3d 100644 --- a/gnulib/tests/test-fseeko.c +++ b/gnulib/tests/test-fseeko.c @@ -1,5 +1,5 @@ /* 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 it under the terms of the GNU General Public License as published by @@ -19,39 +19,47 @@ #include <config.h> #include <stdio.h> +#include <stdlib.h> -/* Get off_t. */ -#include <sys/types.h> +#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 non-empty and 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); - if (r1 != r2 || r1 != expected) - return 1; + 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 ungetc data. */ + /* Test that fseek discards previously read ungetc data. */ int ch = fgetc (stdin); - if (ch == EOF) - return 1; - if (ungetc (ch ^ 0xff, stdin) != (ch ^ 0xff)) - return 1; - if (fseeko (stdin, (off_t) 0, SEEK_END)) - return 1; - if (fgetc (stdin) != EOF) - return 1; + 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. */ - if (!feof (stdin)) - return 1; - if (fseeko (stdin, (off_t) 0, SEEK_END)) - return 1; - if (feof (stdin)) - return 1; + ASSERT (feof (stdin)); + ASSERT (fseeko (stdin, 0, SEEK_END) == 0); + ASSERT (!feof (stdin)); } return 0; } |