def test_alter_topic_config_works(topic_controller: TopicController,
topic_id: str):
initial_topic = Topic(topic_id, config={"cleanup.policy": "delete"})
topic_controller.create_topics([initial_topic])
topic_controller.update_from_cluster(initial_topic)
config = initial_topic.config
assert config.get("cleanup.policy") == "delete"
change_topic = Topic(topic_id, config={"cleanup.policy": "compact"})
topic_controller.alter_configs([change_topic])
topic_controller.update_from_cluster(change_topic)
after_changes_applied_topic = topic_controller.get_cluster_topic(topic_id)
final_config = after_changes_applied_topic.config
assert final_config.get("cleanup.policy") == "compact"
def test_alter_topic_config_only_changes_mentioned_attributes(
topic_controller: TopicController, topic_id: str):
initial_topic = Topic(topic_id,
config={
"cleanup.policy": "delete",
"min.compaction.lag.ms": "1000000"
})
topic_controller.create_topics([initial_topic])
topic_controller.update_from_cluster(initial_topic)
config = initial_topic.config
assert config.get("cleanup.policy") == "delete"
assert config.get("min.compaction.lag.ms") == "1000000"
change_topic = Topic(topic_id, config={"cleanup.policy": "compact"})
topic_controller.alter_configs([change_topic])
topic_controller.update_from_cluster(change_topic)
after_changes_applied_topic = topic_controller.get_cluster_topic(topic_id)
final_config = after_changes_applied_topic.config
assert final_config.get("cleanup.policy") == "compact"
assert final_config.get("min.compaction.lag.ms") == "1000000"