[PATCH 2/2] btrfs-progs: tests/mkfs: make sure rootdir got its xattr copied

[Qu Wenruo <wqu@suse.com>]

The new test case would:

- Create a dir as source dir for --rootdir
- Add xattr for that source dir
- Create a file inside that source dir
- Add xattr for that file
- Run "mkfs.btrfs --rootdir" with that source dir
- Mount the created fs
- Make sure the following xattr exists:
  * Xattr for the rootdir
  * Xattr for that file inside the mount point

Signed-off-by: Qu Wenruo <wqu@suse.com>
---
 tests/mkfs-tests/027-rootdir-xattr/test.sh | 40 ++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100755 tests/mkfs-tests/027-rootdir-xattr/test.sh

diff --git a/tests/mkfs-tests/027-rootdir-xattr/test.sh b/tests/mkfs-tests/027-rootdir-xattr/test.sh
new file mode 100755
index 000000000000..bff9dc71d8e0
--- /dev/null
+++ b/tests/mkfs-tests/027-rootdir-xattr/test.sh
@@ -0,0 +1,40 @@
+#!/bin/bash
+# Test if the source dir has xattr, "mkfs.btrfs --rootdir" would properly copy
+# that xattr to the rootdir inode.
+
+source "$TEST_TOP/common" || exit
+
+setup_root_helper
+prepare_test_dev
+
+check_global_prereq setfattr
+check_global_prereq getfattr
+
+# Here we don't want to use /tmp, as it's pretty common /tmp is tmpfs, which
+# doesn't support xattr.
+# Instead we go $TEST_TOP/btrfs-progs-mkfs-tests-027.XXXXXX/ instead.
+src_dir=$(mktemp -d --tmpdir=$TEST_TOP btrfs-progs-mkfs-tests-027.XXXXXX)
+run_mayfail setfattr -n user.rootdir "$src_dir"
+if [ $? -ne 0 ]; then
+	rm -rf -- "$src_dir"
+	_not_run "unable to set xattr to temporaray directory"
+fi
+run_check touch "$src_dir/foobar"
+run_check setfattr -n user.foobar "$src_dir/foobar"
+
+run_check_mkfs_test_dev --rootdir "$src_dir"
+run_check_mount_test_dev
+
+attr=$(run_check_stdout getfattr -n user.rootdir --absolute-names "$src_dir")
+if ! echo $attr | grep -q "user.rootdir" ; then
+	rm -rf -- "$src_dir"
+	_fail "no rootdir xattr found"
+fi
+
+attr=$(run_check_stdout getfattr -n user.foobar --absolute-names "$src_dir/foobar")
+if ! echo $attr | grep -q "user.foobar" ; then
+	rm -rf -- "$src_dir"
+	_fail "no regular file xattr found"
+fi
+
+rm -rf -- "$src_dir"
-- 
2.42.0