org.junit.platform.launcher

Interface LauncherDiscoveryListener

All Superinterfaces:

EngineDiscoveryListener

All Known Implementing Classes:

AbortOnFailureLauncherDiscoveryListener, CompositeLauncherDiscoveryListener, LoggingLauncherDiscoveryListener

@API(status=EXPERIMENTAL,
     since="1.6")
public interface LauncherDiscoveryListener
extends EngineDiscoveryListener

Register a concrete implementation of this interface with a LauncherDiscoveryRequestBuilder or Launcher 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(), LauncherConfig.Builder.addLauncherDiscoveryListeners(org.junit.platform.launcher.LauncherDiscoveryListener...)

Field Summary

Fields

Modifier and Type	Field and Description
static LauncherDiscoveryListener	NOOP No-op implementation of LauncherDiscoveryListener

Method Summary

Modifier and Type	Method and Description
default void	engineDiscoveryFinished(UniqueId engineId, EngineDiscoveryResult result) Called when test discovery has finished for an engine.
default void	engineDiscoveryStarted(UniqueId engineId) Called when test discovery is about to be started for an engine.
default void	launcherDiscoveryFinished(LauncherDiscoveryRequest request) Called when test discovery has finished.
default void	launcherDiscoveryStarted(LauncherDiscoveryRequest request) Called when test discovery is about to be started.

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

selectorProcessed

Field Detail

NOOP

static final LauncherDiscoveryListener NOOP

No-op implementation of LauncherDiscoveryListener

Method Detail

launcherDiscoveryStarted

@API(status=STABLE,
     since="1.10")
default void launcherDiscoveryStarted(LauncherDiscoveryRequest request)

Called when test discovery is about to be started.

Parameters:

request - the request for which discovery is being started

Since:

1.8

launcherDiscoveryFinished

@API(status=STABLE,
     since="1.10")
default void launcherDiscoveryFinished(LauncherDiscoveryRequest request)

Called when test discovery has finished.

Parameters:

request - the request for which discovery has finished

Since:

1.8

engineDiscoveryStarted

default void engineDiscoveryStarted(UniqueId engineId)

Called when test discovery is about to be started for an engine.

Parameters:

engineId - the unique ID of the engine descriptor

engineDiscoveryFinished

default void engineDiscoveryFinished(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