State Stores
When you define your state stores via .stores(stores: Seq[String]) since 1.2, you are able to verify the state store content via the .stateTable(name: String) method:
import com.madewithtea.mockedstreams.MockedStreams
val mstreams = MockedStreams()
.topology { builder => builder.stream(...) [...] } // Scala DSL
.input("in-a", strings, ints, inputA)
.input("in-b", strings, ints, inputB)
.stores(Seq("store-name"))
mstreams.stateTable("store-name") shouldEqual Map('a' -> 1)