diff --git a/tools/test.sh b/tools/test.sh
index 2dcbf6a..b6c94ac 100755
--- a/tools/test.sh
+++ b/tools/test.sh
@@ -35,7 +35,10 @@ if [ $res = 0 ]; then
 	printf "\033[32mPASSED\033[0m\n"
 else
 	printf "\033[31mFAILED\033[0m\n"
-	diff <(echo $out) <(echo $rout)
+	if [ "$status" != "$rstatus" ]; then
+		printf "exit: $rstatus (should be $status)\n"
+	fi
+	diff -Nau <(printf "%s\n" "$out") <(printf "%s\n" "$rout")
 fi
 
 exit $res