/* Test of opening a file stream.
- Copyright (C) 2007-2009 Free Software Foundation, Inc.
+ Copyright (C) 2007-2011 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
/* Include <config.h> and a form of <stdio.h> first. */
-#include <stdlib.h>
-
-#define ASSERT(expr) \
- do \
- { \
- if (!(expr)) \
- { \
- fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
- fflush (stderr); \
- abort (); \
- } \
- } \
- while (0)
-
-int
-main ()
+#include <errno.h>
+#include <unistd.h>
+
+#include "macros.h"
+
+/* Test fopen. Assumes BASE is defined. */
+
+static int
+test_fopen (void)
{
+ FILE *f;
+ /* Remove anything from prior partial run. */
+ unlink (BASE "file");
+
+ /* Read requires existing file. */
+ errno = 0;
+ ASSERT (fopen (BASE "file", "r") == NULL);
+ ASSERT (errno == ENOENT);
+
+ /* Write can create a file. */
+ f = fopen (BASE "file", "w");
+ ASSERT (f);
+ ASSERT (fclose (f) == 0);
+
+ /* Trailing slash is invalid on non-directory. */
+ errno = 0;
+ ASSERT (fopen (BASE "file/", "r") == NULL);
+ ASSERT (errno == ENOTDIR || errno == EISDIR || errno == EINVAL);
+
+ /* Cannot create a directory. */
+ errno = 0;
ASSERT (fopen ("nonexist.ent/", "w") == NULL);
- ASSERT (fopen ("/dev/null/", "r") == NULL);
+ ASSERT (errno == ENOTDIR || errno == EISDIR || errno == ENOENT
+ || errno == EINVAL);
+
+ /* Directories cannot be opened for writing. */
+ errno = 0;
+ ASSERT (fopen (".", "w") == NULL);
+ ASSERT (errno == EISDIR || errno == EINVAL || errno == EACCES);
+
+ /* /dev/null must exist, and be writable. */
+ f = fopen ("/dev/null", "r");
+ ASSERT (f);
+ ASSERT (fclose (f) == 0);
+ f = fopen ("/dev/null", "w");
+ ASSERT (f);
+ ASSERT (fclose (f) == 0);
- ASSERT (fopen ("/dev/null", "r") != NULL);
+ /* Cleanup. */
+ ASSERT (unlink (BASE "file") == 0);
return 0;
}