1 files changed, 89 insertions, 0 deletions
diff --git a/gnulib-tests/test-areadlinkat.c b/gnulib-tests/test-areadlinkat.c
new file mode 100644
index 0000000..d947f4e
--- /dev/null
+++ b/gnulib-tests/test-areadlinkat.c
@@ -0,0 +1,89 @@
+/* Tests of areadlinkat.
+   Copyright (C) 2009-2022 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
+   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
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   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, see <https://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+#include <config.h>
+
+#include "areadlink.h"
+
+#include <fcntl.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "ignore-value.h"
+#include "macros.h"
+
+#define BASE "test-areadlinkat.t"
+
+#include "test-areadlink.h"
+
+static int dfd = AT_FDCWD;
+
+/* Wrapper for testing areadlinkat.  */
+static char *
+do_areadlinkat (char const *name, _GL_UNUSED size_t ignored)
+{
+  return areadlinkat (dfd, name);
+}
+
+int
+main (void)
+{
+  int result;
+
+  /* Remove any leftovers from a previous partial run.  */
+  ignore_value (system ("rm -rf " BASE "*"));
+
+  /* Basic tests.  */
+  result = test_areadlink (do_areadlinkat, false);
+  dfd = open (".", O_RDONLY);
+  ASSERT (0 <= dfd);
+  ASSERT (test_areadlink (do_areadlinkat, false) == result);
+
+  /* Relative tests.  */
+  if (result == 77)
+    fputs ("skipping test: symlinks not supported on this file system\n",
+           stderr);
+  else
+    {
+      char *buf;
+      ASSERT (symlink ("nowhere", BASE "link") == 0);
+      ASSERT (mkdir (BASE "dir", 0700) == 0);
+      ASSERT (chdir (BASE "dir") == 0);
+      buf = areadlinkat (dfd, BASE "link");
+      ASSERT (buf);
+      ASSERT (strcmp (buf, "nowhere") == 0);
+      free (buf);
+      errno = 0;
+      ASSERT (areadlinkat (-1, BASE "link") == NULL);
+      ASSERT (errno == EBADF);
+      errno = 0;
+      ASSERT (areadlinkat (AT_FDCWD, BASE "link") == NULL);
+      ASSERT (errno == ENOENT);
+      ASSERT (chdir ("..") == 0);
+      ASSERT (rmdir (BASE "dir") == 0);
+      ASSERT (unlink (BASE "link") == 0);
+    }
+
+  ASSERT (close (dfd) == 0);
+  return result;
+}