btrfs-progs: tests: add case for recursive subvolume deletion printin…

…g child subvolumes

Signed-off-by: David Sterba <[email protected]>

tests/misc-tests/068-subvol-delete-recursive-show-child/test.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+# Print all nested subvolume paths as they're getting deleted
+
+source "$TEST_TOP/common" || exit
+
+setup_root_helper
+prepare_test_dev
+
+run_check_mkfs_test_dev
+run_check_mount_test_dev
+for path in						\
+	"subvol1"					\
+	"subvol1/subvol2"				\
+	"subvol1/subvol2/subvol3"			\
+	"subvol1/subvol2/subvol3/subvol4"		\
+	"subvol1/subvol2/subvol3/subvol4/subvol5"; do
+
+	run_check $SUDO_HELPER "$TOP/btrfs" subvolume create "$TEST_MNT/$path"
+done
+
+run_mustfail "deleted non-empty subvolume" \
+	$SUDO_HELPER "$TOP/btrfs" subvolume delete "$TEST_MNT/subvol1"
+
+if ! run_check_stdout $SUDO_HELPER "$TOP/btrfs" subvolume delete --recursive "$TEST_MNT/subvol1" |
+	grep -q 'subvol[2345]'; then
+	_fail "nested subvolumes not printed"
+fi
+
+run_check_umount_test_dev