@Test
public void retrieveLogsInClosedStateDoesNotStartClientActor() {

    new TestKit(actorSystem) {{
        final TestProbe probe = TestProbe.apply(actorSystem);
        final ActorRef underTest =
                TestConstants.createConnectionSupervisorActor(connectionId, actorSystem, pubSubMediator,
                        proxyActor,
                        (connection, concierge, connectionActor) -> MockClientActor.props(probe.ref()));
        watch(underTest);
        // create connection
        underTest.tell(createClosedConnection, getRef());
        expectMsg(createClosedConnectionResponse);
        probe.expectNoMessage();
        // retrieve logs
        underTest.tell(RetrieveConnectionLogs.of(connectionId, DittoHeaders.empty()), getRef());
        probe.expectNoMessage();
        final RetrieveConnectionLogsResponse logsResponse =
                RetrieveConnectionLogsResponse.of(connectionId,
                        Collections.emptyList(),
                        null,
                        null,
                        DittoHeaders.empty());
        expectMsg(logsResponse);
    }};
}