use sub second sleeps for prefetch disabled test

(cherry picked from commit 733898cffeda261c5d41a7ed38a3c5e5d5082865)

diff --git a/bin/tests/system/resolver/tests.sh b/bin/tests/system/resolver/tests.sh
index 3757715f4cb28ed359889bfb910e5d9bb83ffe4d..075c49d61262182e6be86a2be8970455e4851d59 100755 (executable)
--- a/bin/tests/system/resolver/tests.sh
+++ b/bin/tests/system/resolver/tests.sh
@@ -441,12 +441,13 @@ ttl1=`awk '/"A" "short" "ttl"/ { print $2 - 1 }' dig.out.1.${n}`
 # sleep so we are in expire range
 sleep ${ttl1:-0}
 # look for zero ttl, allow for one miss at getting zero ttl
-for i in 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
+zerotonine="0 1 2 3 4 5 6 7 8 9"
+for i in $zerotonine $zerotonine $zerotonine $zerotonine
 do 
        $DIG @10.53.0.7 -p 5300 fetch.example.net txt > dig.out.2.${n} || ret=1
        ttl2=`awk '/"A" "short" "ttl"/ { print $2 }' dig.out.2.${n}`
        test ${ttl2:-1} -eq 0 && break
-       sleep 1
+       $PERL -e 'select(undef, undef, undef, 0.05);' 
 done
 test ${ttl2:-1} -eq 0 || ret=1
 # delay so that any prefetched record will have a lower ttl than expected