tests: teach a res file to contains `UNDEFINED` and always match

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/tests/tests.sh b/tests/tests.sh
index 1c42a68..c89adf7 100755 (executable)
--- a/tests/tests.sh
+++ b/tests/tests.sh
@@ -59,6 +59,7 @@ function compare_to_result()
        local pattern="$1"
        local sav="$2"
        if [ ! -r "$sav" ]; then return 0; fi
+       test "`cat "$sav"`" = "UNDEFINED" && return 1
        diff -u "$sav" "out/$pattern.res" > "out/$pattern.diff.sav.log"
        if [ "$?" == 0 ]; then
                return 1