With Google's PubSub there is an embedded broker available for writing tests: embedded-google-pubsub (https://github.com/PlaytikaOSS/testcontainers-spring-boot/blob/develop/embedded-google-pubsub/README.adoc)
Can I use this also for PubSubLite? Probably not, since I do not find any indication in the documentation. But what am I going to use for writing integration tests then? It seems there is not even a Docker image available for PubSubLite?