notmuch reply id:${gen_msg_id} >OUTPUT 2>&1 && echo OK >> OUTPUT
test_expect_equal_file basic.expected OUTPUT
-if [ $NOTMUCH_HAVE_SFSEXP -eq 1 ]; then
+if [ "${NOTMUCH_HAVE_SFSEXP-0}" = "1" ]; then
test_begin_subtest "Basic reply (query=sexp)"
notmuch reply --query=sexp "(id ${gen_msg_id})" >OUTPUT 2>&1 && echo OK >> OUTPUT