LauncherDiscoveryListener (junit-platform-launcher 1.6.3 API)

java.lang.Object
- org.junit.platform.launcher.LauncherDiscoveryListener

All Implemented Interfaces:

org.junit.platform.engine.EngineDiscoveryListener
```
@API(status=EXPERIMENTAL,
     since="1.6")
public abstract class LauncherDiscoveryListener
extends java.lang.Object
implements org.junit.platform.engine.EngineDiscoveryListener
```
Register a concrete implementation of this interface with a LauncherDiscoveryRequestBuilder to be notified of events that occur during test discovery.
All methods in this interface have empty default implementations. Concrete implementations may therefore override one or more of these methods to be notified of the selected events.
JUnit provides default implementations that are created via the factory methods in LauncherDiscoveryListeners.
The methods declared in this interface are called by the Launcher created via the LauncherFactory during test discovery.

Since:

1.6

See Also:

LauncherDiscoveryListeners, LauncherDiscoveryRequest.getDiscoveryListener()

Field Summary

Fields
Modifier and Type Field Description

static LauncherDiscoveryListener NOOP
No-op implementation of LauncherDiscoveryListener

Constructor Summary

Constructors
Constructor Description

LauncherDiscoveryListener()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`engineDiscoveryFinished(org.junit.platform.engine.UniqueId engineId, EngineDiscoveryResult result)`	Called when test discovery has finished for an engine.
`void`	`engineDiscoveryStarted(org.junit.platform.engine.UniqueId engineId)`	Called when test discovery is about to be started for an engine.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.junit.platform.engine.EngineDiscoveryListener
selectorProcessed

- Field Detail
  - NOOP
```
public static final LauncherDiscoveryListener NOOP
```
    No-op implementation of LauncherDiscoveryListener
- Constructor Detail
  - LauncherDiscoveryListener
```
public LauncherDiscoveryListener()
```
- Method Detail
  - engineDiscoveryStarted
```
public void engineDiscoveryStarted(org.junit.platform.engine.UniqueId engineId)
```
    Called when test discovery is about to be started for an engine.
    
    Parameters:
    
    engineId - the unique ID of the engine descriptor
  - engineDiscoveryFinished
```
public void engineDiscoveryFinished(org.junit.platform.engine.UniqueId engineId,
                                    EngineDiscoveryResult result)
```
    Called when test discovery has finished for an engine.
    Exceptions thrown by implementations of this method will cause the complete test discovery to be aborted.
    
    Parameters:
    
    engineId - the unique ID of the engine descriptor
    
    result - the discovery result of the supplied engine
    
    See Also:
    
    EngineDiscoveryResult