+unset BLOCKSIZE BLOCK_SIZE DF_BLOCK_SIZE
+
+root_status="$(t/root-status)" || exit $?
+
+if ! bup-python -c 'import fuse' 2> /dev/null; then
+ WVSTART 'unable to import fuse; skipping test'
+ exit 0
+fi
+
+if test -n "$(type -p modprobe)" && ! modprobe fuse; then
+ echo 'Unable to load fuse module; skipping dependent tests.' 1>&2
+ exit 0
+fi
+