# Pastebin JnTAgpCW
diff --git a/tests/functions.sh b/tests/functions.sh
index 31d0a0b..e41a2a2 100755
--- a/tests/functions.sh
+++ b/tests/functions.sh
@@ -131,7 +131,11 @@ test_disable_negated_services 'a,b,-a' 'b'
 test_disable_negated_services 'a,-a,b' 'b'
 test_disable_negated_services 'a,-a,av2' 'av2'
 test_disable_negated_services 'a,-a,av2,b' 'av2,b'
-
+test_disable_negated_services 'a,aa,-a' 'aa'
+test_disable_negated_services 'aa,-a' 'aa'
+test_disable_negated_services 'a_a, -a_a' ''
+test_disable_negated_services 'a-b, b, -a-b' 'b'
+test_disable_negated_services "a,av2,-a,a" "av2"
 
 echo "Testing is_package_installed()"