io: Move file timestamps tests out of Linux

Now that libsupport abstract Linux possible missing support (either
due FS limitation that can't handle 64 bit timestamp or architectures
that do not handle values larger than unsigned 32 bit values) the
tests can be turned generic.

Checked on x86_64-linux-gnu and i686-linux-gnu.  I also built the
tests for i686-gnu.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>

1 files changed, 45 insertions, 0 deletions

diff --git a/io/tst-futimens.c b/io/tst-futimens.c
new file mode 100644
index 0000000000..ac7a980017
--- /dev/null
+++ b/io/tst-futimens.c
@@ -0,0 +1,45 @@
+/* Test for futimens
+   Copyright (C) 2021 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <support/check.h>
+#include <support/xunistd.h>
+#include <sys/stat.h>
+
+static int
+test_futimens_helper (const char *file, int fd, const struct timespec *ts)
+{
+  int result = futimens (fd, ts);
+  TEST_VERIFY_EXIT (result == 0);
+
+  struct stat64 st;
+  xfstat (fd, &st);
+
+  /* Check if seconds for atime match */
+  TEST_COMPARE (st.st_atime, ts[0].tv_sec);
+
+  /* Check if seconds for mtime match */
+  TEST_COMPARE (st.st_mtime, ts[1].tv_sec);
+
+  return 0;
+}
+
+#define TEST_CALL(fname, fd, v1, v2) \
+  test_futimens_helper (fname, fd, (struct timespec[]) { { v1, 0 }, \
+							 { v2, 0 } })
+
+#include "tst-utimensat-skeleton.c"