+import de.juplo.kafka.wordcount.splitter.TestInputUser;
+import de.juplo.kafka.wordcount.splitter.TestInputWord;
+import de.juplo.kafka.wordcount.top10.TestOutputWord;
+import de.juplo.kafka.wordcount.top10.TestOutputWordCounter;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.kafka.streams.TestInputTopic;
+import org.apache.kafka.streams.TestOutputTopic;
+import org.apache.kafka.streams.Topology;
+import org.apache.kafka.streams.TopologyTestDriver;
+import org.apache.kafka.streams.state.KeyValueStore;