add tests for roles

Signed-off-by: Martin Schurz <[email protected]>

roles/mysql_hardening/tasks/mysql_secure_installation.yml

@@ -70,7 +70,7 @@
         AND USER NOT IN ('mysql.sys',
                          'mysqlxsys',
                          'mariadb.sys')
-      {{ 'AND is_role like "N"' if mysql_role_support.rowcount[0] > 0 }};
+      {{ 'AND is_role = "N"' if mysql_role_support.rowcount[0] > 0 }};
     login_unix_socket: "{{ login_unix_socket | default(omit) }}"
   register: mysql_users_wo_passwords_or_auth_string
   check_mode: false