TestInbox

```
public interface TestInbox<T>
```
Utility for use as an ActorRef when *synchronously* testing Behavior with BehaviorTestKit.
If you plan to use a real ActorSystem then use TestProbe for asynchronous testing.
Use factory apply in companion to create instances
Not for user extension

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`TestInbox<T>`	`expectMessage(T expectedMessage)`	Assert and remove the the oldest message.
`boolean`	`hasMessages()`
`scala.collection.immutable.Seq<T>`	`internalReceiveAll()`
`scala.collection.immutable.Seq<T>`	`receiveAll()`	Collect all messages in the inbox and clear it out
`T`	`receiveMessage()`	Get and remove the oldest message
`ActorRef<T>`	`ref()`	The actor ref of the inbox

- Method Detail
  - ref
```
ActorRef<T> ref()
```
    The actor ref of the inbox
  - receiveMessage
```
T receiveMessage()
```
    Get and remove the oldest message
  - expectMessage
```
TestInbox<T> expectMessage(T expectedMessage)
```
    Assert and remove the the oldest message.
  - receiveAll
```
scala.collection.immutable.Seq<T> receiveAll()
```
    Collect all messages in the inbox and clear it out
  - internalReceiveAll
```
scala.collection.immutable.Seq<T> internalReceiveAll()
```
  - hasMessages
```
boolean hasMessages()
```