A Junit external resource for the ActorTestKit, making it possible to have Junit manage the lifecycle of the testkit. The testkit will be automatically shut down when the test completes or fails.

Note that Junit is not provided as a transitive dependency of the testkit module but must be added explicitly to your project to use this.

Example:

public class MyActorTest {
  @ClassRule
  public static final TestKitResource testKit = new TestKitResource();

  @Test
  public void testBlah() throws Exception {
	   // spawn actors etc using the testKit
	   ActorRef<Message> ref = testKit.spawn(behavior);
  }
}

By default config is loaded from application-test.conf if that exists, otherwise using default configuration from the reference.conf resources that ship with the Akka libraries. The application.conf of your project is not used in this case. A specific configuration can be passed as constructor parameter.