Hi, Some open-source tools have an embedded option that makes it very easy to test. Example: http://stackoverflow.com/questions/19806750/what-is-wrong-with-embedding-solr
"The embedded server is recommended when you need a simple solution that is not distributed. For example when writing small unit and integration tests" Or http://stackoverflow.com/questions/9286054/is-it-possible-to-start-a-zookeeper-server-instance-in-process-say-for-unit-tes Does Storm have something like that? It will be very useful to have junits for topologies by making use of such an embedded Storm and run them as part of mvn install. Thanks SG
