gettimeofday: port recent C++ fix to Emacs

[gnulib.git] / tests / test-symlinkat.c

diff --git a/tests/test-symlinkat.c b/tests/test-symlinkat.c
index 67f0adf..11d3835 100644 (file)
--- a/tests/test-symlinkat.c
+++ b/tests/test-symlinkat.c
@@ -1,5 +1,5 @@
-/* Tests of symlinkat and readlinkat.
-   Copyright (C) 2009 Free Software Foundation, Inc.
+/* Tests of symlinkat.
+   Copyright (C) 2009-2013 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
@@ -22,7 +22,6 @@
 
 #include "signature.h"
 SIGNATURE_CHECK (symlinkat, int, (char const *, int, char const *));
-SIGNATURE_CHECK (readlinkat, ssize_t, (int, char const *, char *, size_t));
 
 #include <fcntl.h>
 #include <errno.h>
@@ -32,25 +31,15 @@ SIGNATURE_CHECK (readlinkat, ssize_t, (int, char const *, char *, size_t));
 #include <string.h>
 #include <sys/stat.h>
 
+#include "ignore-value.h"
+#include "macros.h"
+
 #ifndef HAVE_SYMLINK
 # define HAVE_SYMLINK 0
 #endif
 
-#define ASSERT(expr) \
-  do                                                                         \
-    {                                                                        \
-      if (!(expr))                                                           \
-        {                                                                    \
-          fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__);  \
-          fflush (stderr);                                                   \
-          abort ();                                                          \
-        }                                                                    \
-    }                                                                        \
-  while (0)
-
 #define BASE "test-symlinkat.t"
 
-#include "test-readlink.h"
 #include "test-symlink.h"
 
 static int dfd = AT_FDCWD;
@@ -61,64 +50,37 @@ do_symlink (char const *contents, char const *name)
   return symlinkat (contents, dfd, name);
 }
 
-static ssize_t
-do_readlink (char const *name, char *buf, size_t len)
-{
-  return readlinkat (dfd, name, buf, len);
-}
-
 int
 main (void)
 {
-  char buf[80];
   int result;
 
   /* Remove any leftovers from a previous partial run.  */
-  ASSERT (system ("rm -rf " BASE "*") == 0);
+  ignore_value (system ("rm -rf " BASE "*"));
+
+  /* Test behaviour for invalid file descriptors.  */
+  {
+    errno = 0;
+    ASSERT (symlinkat ("foo", -1, "bar") == -1);
+    ASSERT (errno == EBADF
+            || errno == ENOSYS /* seen on mingw */
+           );
+  }
+  {
+    close (99);
+    errno = 0;
+    ASSERT (symlinkat ("foo", 99, "bar") == -1);
+    ASSERT (errno == EBADF
+            || errno == ENOSYS /* seen on mingw */
+           );
+  }
 
   /* Perform same checks as counterpart functions.  */
-  result = test_readlink (do_readlink, false);
-  ASSERT (test_symlink (do_symlink, false) == result);
+  result = test_symlink (do_symlink, false);
   dfd = openat (AT_FDCWD, ".", O_RDONLY);
   ASSERT (0 <= dfd);
-  ASSERT (test_readlink (do_readlink, false) == result);
   ASSERT (test_symlink (do_symlink, false) == result);
 
-  /* Now perform some cross-directory checks.  Skip everything else on
-     mingw.  */
-  if (HAVE_SYMLINK)
-    {
-      const char *contents = "don't matter!";
-      ssize_t exp = strlen (contents);
-
-      /* Create link while cwd is '.', then read it in '..'.  */
-      ASSERT (symlinkat (contents, AT_FDCWD, BASE "link") == 0);
-      errno = 0;
-      ASSERT (symlinkat (contents, dfd, BASE "link") == -1);
-      ASSERT (errno == EEXIST);
-      ASSERT (chdir ("..") == 0);
-      errno = 0;
-      ASSERT (readlinkat (AT_FDCWD, BASE "link", buf, sizeof buf) == -1);
-      ASSERT (errno == ENOENT);
-      ASSERT (readlinkat (dfd, BASE "link", buf, sizeof buf) == exp);
-      ASSERT (strncmp (contents, buf, exp) == 0);
-      ASSERT (unlinkat (dfd, BASE "link", 0) == 0);
-
-      /* Create link while cwd is '..', then read it in '.'.  */
-      ASSERT (symlinkat (contents, dfd, BASE "link") == 0);
-      ASSERT (fchdir (dfd) == 0);
-      errno = 0;
-      ASSERT (symlinkat (contents, AT_FDCWD, BASE "link") == -1);
-      ASSERT (errno == EEXIST);
-      buf[0] = '\0';
-      ASSERT (readlinkat (AT_FDCWD, BASE "link", buf, sizeof buf) == exp);
-      ASSERT (strncmp (contents, buf, exp) == 0);
-      buf[0] = '\0';
-      ASSERT (readlinkat (dfd, BASE "link", buf, sizeof buf) == exp);
-      ASSERT (strncmp (contents, buf, exp) == 0);
-      ASSERT (unlink (BASE "link") == 0);
-    }
-
   ASSERT (close (dfd) == 0);
   if (result == 77)
     fputs ("skipping test: symlinks not supported on this file system\n",