title: BehaviorTestKit Spawn is not equal to Spawn
body: <p>I have the following test in Akka Typed</p>
  <pre><code>val receptionistKit: BehaviorTestKit[Command] = BehaviorTestKit[Command](Receptionist.apply)
    val sessionInbox: TestInbox[Result] = TestInbox[Result]()
  
    receptionistKit.ref ! Message(&quot;file name&quot;, sessionInbox.ref)
    receptionistKit.runOne()
  
    receptionistKit.retrieveAllEffects() should contain(Spawned(FileGetter(), &quot;file-getter&quot;))
  </code></pre>
  <p>When I run this test then I get the following error. This doesn't make any sense to me.</p>
  <pre><code>List(MessageAdapter(class akka.pattern.StatusReply,Receptionist$$$Lambda$10629/0x0000000804221840@7921d203), Spawned(ReceiveMessage(FileGetter.scala:22-31), file-getter, EmptyProps)) did not contain element Spawned(ReceiveMessage(FileGetter.scala:22-31), file-getter, EmptyProps)
  </code></pre>
  <p>I just can't figure out how to get this test working. Any hints please?
  Thanks in advance.</p>