protected int getDiffSize() {
        return diff.size();
    }
@Test
    public void testReplaceRootLogger() {
        KafkaBrokerLoggingConfigurationDiff klcd = new KafkaBrokerLoggingConfigurationDiff(Reconciliation.DUMMY_RECONCILIATION, getCurrentConfiguration(emptyList()), getDesiredConfiguration(emptyList()));
        assertThat(klcd.getDiffSize(), is(0));
    }