static Map<String, Object> configProps(final String rackAwareConfig, final int replicaNum) {
        final Map<String, Object> configurationMap = new HashMap<>();
        configurationMap.put(StreamsConfig.APPLICATION_ID_CONFIG, APPLICATION_ID);
        configurationMap.put(StreamsConfig.BOOTSTRAP_SERVERS_CONFIG, USER_END_POINT);
        configurationMap.put(StreamsConfig.NUM_STANDBY_REPLICAS_CONFIG, replicaNum);
        configurationMap.put(StreamsConfig.RACK_AWARE_ASSIGNMENT_STRATEGY_CONFIG, rackAwareConfig);

        final ReferenceContainer referenceContainer = new ReferenceContainer();
        configurationMap.put(InternalConfig.REFERENCE_CONTAINER_PARTITION_ASSIGNOR, referenceContainer);
        return configurationMap;
    }
Builds a ProcessId with a UUID by repeating the given number n. For valid n, it is guaranteed that the returned UUIDs satisfy
the same relation relative to others as their parameter n does: iff n < m, then uuidForInt(n) < uuidForInt(m)
streams/src/test/java/org/apache/kafka/streams/processor/internals/assignment/AssignmentTestUtils.java