import akka.actor.ActorSystem;

import controllers.AsyncController;

import controllers.CountController;

import org.junit.Test;

import play.mvc.Result;

import scala.concurrent.ExecutionContextExecutor;

import java.util.concurrent.CompletionStage;

import static org.assertj.core.api.Assertions.assertThat;

import static org.awaitility.Awaitility.await;

import static play.test.Helpers.contentAsString;

/**

* Unit testing does not require Play application start up.

*

* https://www.playframework.com/documentation/latest/JavaTest

*/

public class UnitTest {

@Test

public void simpleCheck() {

int a = 1 + 1;

assertThat(a).isEqualTo(2);

}

// Unit test a controller

@Test

public void testCount() {

final CountController controller = new CountController(() -> 49);

Result result = controller.count();

assertThat(contentAsString(result)).isEqualTo("49");

}

// Unit test a controller with async return

@Test

public void testAsync() {

final ActorSystem actorSystem = ActorSystem.create("test");

try {

final ExecutionContextExecutor ec = actorSystem.dispatcher();

final AsyncController controller = new AsyncController(actorSystem, ec);

final CompletionStage<Result> future = controller.message();

// Block until the result is completed

await().untilAsserted(() ->

assertThat(future.toCompletableFuture())

.isCompletedWithValueMatching(result -> contentAsString(result).equals("Hi!"))

);

} finally {

actorSystem.terminate();

}

}

}