1 files changed, 98 insertions, 0 deletions
diff --git a/gnulib-tests/test-mkdir.h b/gnulib-tests/test-mkdir.h
new file mode 100644
index 0000000..4e57abe
--- /dev/null
+++ b/gnulib-tests/test-mkdir.h
@@ -0,0 +1,98 @@
+/* Test of mkdir() function.
+   Copyright (C) 2009-2023 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/>.  */
+
+/* This file is designed to test both mkdir(a,b) and
+   mkdirat(AT_FDCWD,a,b).  FUNC is the function to test.  Assumes that
+   BASE and ASSERT are already defined, and that appropriate headers
+   are already included.  If PRINT, warn before skipping tests with
+   status 77 when symlinks are unsupported.  */
+
+static int
+test_mkdir (int (*func) (char const *, mode_t), bool print)
+{
+  /* Test basic error handling.  */
+  ASSERT (close (creat (BASE "file", 0600)) == 0);
+  errno = 0;
+  ASSERT (func (BASE "file", 0700) == -1);
+  ASSERT (errno == EEXIST);
+  errno = 0;
+  ASSERT (func (BASE "file/", 0700) == -1);
+  ASSERT (errno == ENOTDIR || errno == EEXIST);
+  errno = 0;
+  ASSERT (func (BASE "file/dir", 0700) == -1);
+  ASSERT (errno == ENOTDIR || errno == ENOENT || errno == EOPNOTSUPP);
+  ASSERT (unlink (BASE "file") == 0);
+  errno = 0;
+  ASSERT (func ("", 0700) == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func (BASE "dir/sub", 0700) == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func (BASE "dir/.", 0700) == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func (BASE "dir/.//", 0700) == -1);
+  ASSERT (errno == ENOENT);
+
+  /* Test trailing slash handling.  */
+  ASSERT (func (BASE "dir", 0700) == 0);
+  errno = 0;
+  ASSERT (func (BASE "dir", 0700) == -1);
+  ASSERT (errno == EEXIST);
+  ASSERT (rmdir (BASE "dir") == 0);
+  ASSERT (func (BASE "dir/", 0700) == 0);
+  errno = 0;
+  ASSERT (func (BASE "dir/", 0700) == -1);
+  ASSERT (errno == EEXIST);
+  ASSERT (rmdir (BASE "dir") == 0);
+
+  /* Test symlink behavior.  POSIX requires the creation of
+     directories through a dangling symlink with trailing slash, but
+     GNU does not yet implement that, so we support either behavior
+     for now.  */
+  if (symlink (BASE "dir", BASE "link"))
+    {
+      if (print)
+        fputs ("skipping test: symlinks not supported on this file system\n",
+               stderr);
+      return 77;
+    }
+  errno = 0;
+  ASSERT (func (BASE "link", 0700) == -1);
+  ASSERT (errno == EEXIST);
+  {
+    int result;
+    errno = 0;
+    result = func (BASE "link/", 0700);
+    if (!result)
+      ASSERT (rmdir (BASE "dir") == 0);
+    else
+      {
+        ASSERT (result == -1);
+        ASSERT (errno == EEXIST);
+        errno = 0;
+        ASSERT (rmdir (BASE "dir") == -1);
+        ASSERT (errno == ENOENT);
+      }
+  }
+  errno = 0;
+  ASSERT (func (BASE "link/.", 0700) == -1);
+  ASSERT (errno == ENOENT);
+  ASSERT (unlink (BASE "link") == 0);
+
+  return 0;
+}