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ConnectivityProxyActorTest.java
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ConnectivityProxyActorTest.java
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/*
* Copyright (c) 2020 Contributors to the Eclipse Foundation
*
* See the NOTICE file(s) distributed with this work for additional
* information regarding copyright ownership.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.ditto.connectivity.service.messaging;
import static org.assertj.core.api.Assertions.assertThat;
import java.util.List;
import java.util.Optional;
import java.util.UUID;
import java.util.stream.IntStream;
import org.eclipse.ditto.base.model.headers.DittoHeaders;
import org.eclipse.ditto.base.model.signals.Signal;
import org.eclipse.ditto.internal.utils.cluster.DistPubSubAccess;
import org.eclipse.ditto.things.api.ThingsMessagingConstants;
import org.eclipse.ditto.things.model.Thing;
import org.eclipse.ditto.things.model.ThingId;
import org.eclipse.ditto.things.model.signals.commands.query.RetrieveThingResponse;
import org.eclipse.ditto.things.model.signals.commands.query.RetrieveThings;
import org.eclipse.ditto.things.model.signals.commands.query.RetrieveThingsResponse;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.mockito.Mockito;
import akka.actor.ActorRef;
import akka.actor.ActorSystem;
import akka.actor.Props;
import akka.stream.SourceRef;
import akka.stream.javadsl.Source;
import akka.stream.javadsl.StreamRefs;
import akka.testkit.javadsl.TestKit;
/**
* Tests {@link ConnectivityProxyActor}.
*/
public class ConnectivityProxyActorTest {
private static final ThingId KNOWN_THING_ID = ThingId.of("ditto", "myThing");
private static ActorSystem actorSystem;
@BeforeClass
public static void setUp() {
actorSystem = ActorSystem.create("AkkaTestSystem");
}
@AfterClass
public static void tearDown() {
if (actorSystem != null) {
TestKit.shutdownActorSystem(actorSystem);
}
}
@Test
public void testRetrieveThings() {
new TestKit(actorSystem) {{
final Props props = ConnectivityProxyActor.props(getRef());
final ActorRef proxy = actorSystem.actorOf(props);
final List<Thing> thingList = IntStream.range(0, 10)
.mapToObj(i -> ThingId.of(KNOWN_THING_ID.getNamespace(), KNOWN_THING_ID.getName() + "-" + i))
.map(id -> Thing.newBuilder().setId(id).build())
.toList();
final ThingId[] thingIdsArray =
thingList.stream().map(Thing::getEntityId).map(Optional::get).toArray(ThingId[]::new);
final String correlationId = UUID.randomUUID().toString();
final DittoHeaders headers =
DittoHeaders.newBuilder().correlationId(correlationId).contentType("application/json").build();
final RetrieveThings retrieveThings =
RetrieveThings.getBuilder(thingIdsArray).dittoHeaders(headers).build();
// WHEN: RetrieveThings is sent to proxy actor
proxy.tell(retrieveThings, getRef());
// THEN: command is forwarded to things aggregator actor
expectMsg(DistPubSubAccess.send(ThingsMessagingConstants.THINGS_AGGREGATOR_ACTOR_PATH, retrieveThings));
// WHEN: concierge responds with SourceRef of things
final SourceRef<RetrieveThingResponse> retrieveThingResponseSourceRef =
Source.from(retrieveThings.getEntityIds())
.map(thingId -> Thing.newBuilder().setId(thingId).build())
.map(thing -> RetrieveThingResponse.
of(thing.getEntityId().orElseThrow(), thing, null, null, DittoHeaders.empty()))
.runWith(StreamRefs.sourceRef(), actorSystem);
getLastSender().tell(retrieveThingResponseSourceRef, ActorRef.noSender());
// THEN: original sender receives
final RetrieveThingsResponse retrieveThingsResponse = expectMsgClass(RetrieveThingsResponse.class);
assertThat(retrieveThingsResponse.getThings()).containsExactlyElementsOf(thingList);
}};
}
@Test
public void testForwardOtherSignal() {
new TestKit(actorSystem) {{
final Signal<?> signal = Mockito.mock(Signal.class);
Mockito.when(signal.getDittoHeaders()).thenReturn(DittoHeaders.empty());
final Props props = ConnectivityProxyActor.props(getRef());
final ActorRef proxy = actorSystem.actorOf(props);
// WHEN: signal is sent to proxy actor
proxy.tell(signal, getRef());
// THEN: signal is forwarded to concierge
expectMsg(signal);
// WHEN: concierge responds
final Signal<?> response = Mockito.mock(Signal.class);
Mockito.when(response.getDittoHeaders()).thenReturn(DittoHeaders.empty());
getLastSender().tell(response, ActorRef.noSender());
// THEN: original sender receives response
expectMsg(response);
}};
}
}