tests: aux extra protection for rm -rf

diff --git a/test/lib/aux.sh b/test/lib/aux.sh
index 877934c7d1350b48ec8abb3e3679a8952fb7d2c4..c56767ebd61ac8b8155d52c06337a32bfe922cda 100644 (file)
--- a/test/lib/aux.sh
+++ b/test/lib/aux.sh
@@ -633,7 +633,7 @@ teardown() {
        test -n "$TESTDIR" && {
                cd "$TESTOLDPWD" || die "Failed to enter $TESTOLDPWD"
                # after this delete no further write is possible
-               rm -rf "$TESTDIR" || echo BLA
+               rm -rf "${TESTDIR:?}" || echo BLA
        }
 
        echo "ok"