content: /*
   * Copyright (C) 2009-2025 Lightbend Inc. <https://www.lightbend.com>
   */
  
  package jdocs.akka.typed;
  
  import static jdocs.akka.typed.StashDocSample.DB;
  import static jdocs.akka.typed.StashDocSample.DataAccess;
  
  import akka.Done;
  import akka.actor.testkit.typed.javadsl.LogCapturing;
  import akka.actor.testkit.typed.javadsl.TestKitJunitResource;
  import akka.actor.testkit.typed.javadsl.TestProbe;
  import akka.actor.typed.ActorRef;
  import java.util.concurrent.CompletableFuture;
  import java.util.concurrent.CompletionStage;
  import org.junit.ClassRule;
  import org.junit.Rule;
  import org.junit.Test;
  import org.scalatestplus.junit.JUnitSuite;
  
  public class StashDocTest extends JUnitSuite {
  
    @ClassRule public static final TestKitJunitResource testKit = new TestKitJunitResource();
  
    @Rule public final LogCapturing logCapturing = new LogCapturing();
  
    @Test
    public void stashingExample() throws Exception {
      final DB db =
          new DB() {
            public CompletionStage<Done> save(String id, String value) {
              return CompletableFuture.completedFuture(Done.getInstance());
            }
  
            public CompletionStage<String> load(String id) {
              return CompletableFuture.completedFuture("TheValue");
            }
          };
  
      final ActorRef<DataAccess.Command> dataAccess = testKit.spawn(DataAccess.create("17", db));
      TestProbe<String> getInbox = testKit.createTestProbe(String.class);
      dataAccess.tell(new DataAccess.Get(getInbox.getRef()));
      getInbox.expectMessage("TheValue");
  
      TestProbe<Done> saveInbox = testKit.createTestProbe(Done.class);
      dataAccess.tell(new DataAccess.Save("UpdatedValue", saveInbox.getRef()));
      dataAccess.tell(new DataAccess.Get(getInbox.getRef()));
      saveInbox.expectMessage(Done.getInstance());
      getInbox.expectMessage("UpdatedValue");
  
      dataAccess.tell(new DataAccess.Get(getInbox.getRef()));
      getInbox.expectMessage("UpdatedValue");
    }
  }
  