private Map<String, Map<TopicPartition, Long>> getTopicExceptOffsets(List<String> topics,
                                                                         long expectedOffset) {
        return topics.stream()
                .collect(toMap(Function.identity(),
                        topic -> singletonMap(new TopicPartition(topic, 0),
                                expectedOffset)));
    }
Test cases by:
- Non-existing consumer group
- One for each scenario, with scope=all-topics
- scope=one topic, scenario=to-earliest
- scope=one topic+partitions, scenario=to-earliest
- scope=topics, scenario=to-earliest
- scope=topics+partitions, scenario=to-earliest
- export/import
tools/src/test/java/org/apache/kafka/tools/consumer/group/ResetConsumerGroupOffsetTest.java