Testable (Apache ZooKeeper - Server 3.9.1 API)

```
public interface Testable
```
Abstraction that exposes various methods useful for testing ZooKeeper

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default void`	`closeSocket()`	Close the ClientCnxn socket for testing purposes
`void`	`injectSessionExpiration()`	Cause the ZooKeeper instance to behave as if the session expired
`void`	`queueEvent(WatchedEvent event)`	Allow an event to be inserted into the event queue

- Method Detail
  - injectSessionExpiration
```
void injectSessionExpiration()
```
    Cause the ZooKeeper instance to behave as if the session expired
  - queueEvent
```
void queueEvent(WatchedEvent event)
```
    Allow an event to be inserted into the event queue
    
    Parameters:
    
    event - event to insert
  - closeSocket
```
default void closeSocket()
                  throws IOException
```
    Close the ClientCnxn socket for testing purposes
    
    Throws:
    
    IOException