$loginSuccess2 = $user2->login("armand5", "abc12"); if (is_null($loginSuccess2)) { $pass_fail = "fail"; } else { $pass_fail = $loginSuccess2; } printf("User %s logged in successfully: %s\n", "armand5", $pass_fail); //delete user $user->deleteUser(); //block user $user2->block(); $isBlocked = $user2->isBlocked(); $bool_str = $isBlocked ? "true" : "false"; printf("User is blocked: %s\n", $bool_str); //unblock user $user2->unblock(); $isBlocked2 = $user2->isBlocked(); $bool_str2 = $isBlocked2 ? "true" : "false"; printf("User is blocked: %s\n", $bool_str2); unset($user); unset($user2); //////////////////////////// //Subject UNIT TESTS //////////////////////////// printf("/////////////////////////////////\n"); printf("STARTING Subject UNIT TESTS\n"); printf("/////////////////////////////////\n"); //construct subject $subject = new Subject(); //add subject $subject->addSubject("Math");