from datahub.emitter.mce_builder import make_dataset_urn
from datahub.ingestion.source.state.kafka_state import KafkaCheckpointState


def test_kafka_common_state() -> None:
    state1 = KafkaCheckpointState()
    test_topic_urn = make_dataset_urn("kafka", "test_topic1", "test")
    state1.add_checkpoint_urn(type="topic", urn=test_topic_urn)

    state2 = KafkaCheckpointState()

    topic_urns_diff = list(
        state1.get_urns_not_in(type="topic", other_checkpoint_state=state2)
    )
    assert len(topic_urns_diff) == 1 and topic_urns_diff[0] == test_topic_urn