private BrokerRegistrationResponse createBrokerRegistrationResponse() {
        BrokerRegistrationResponseData data = new BrokerRegistrationResponseData()
                .setBrokerEpoch(1)
                .setThrottleTimeMs(0);
        return new BrokerRegistrationResponse(data);
    }
Check that all error codes in the response get included in {@link AbstractResponse#errorCounts()}.
clients/src/test/java/org/apache/kafka/common/requests/RequestResponseTest.java