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ChildActorNannyTest.java
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ChildActorNannyTest.java
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/*
* Copyright (c) 2022 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 static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
import static org.assertj.core.api.Assertions.assertThatNullPointerException;
import java.util.stream.IntStream;
import java.util.stream.Stream;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.ArgumentCaptor;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.junit.MockitoJUnitRunner;
import akka.actor.ActorRef;
import akka.actor.ActorRefFactory;
import akka.actor.Props;
import akka.event.LoggingAdapter;
/**
* Unit test for {@link ChildActorNanny}.
*/
@RunWith(MockitoJUnitRunner.class)
public final class ChildActorNannyTest {
private static final String ACTOR_NAME = "myActor";
@Mock
private ActorRefFactory actorRefFactory;
@Mock
private LoggingAdapter logger;
@Test
public void newInstanceWithNullActorRefFactoryThrowsException() {
assertThatNullPointerException()
.isThrownBy(() -> ChildActorNanny.newInstance(null, logger))
.withMessage("The actorRefFactory must not be null!")
.withNoCause();
}
@Test
public void newInstanceWithNullLoggingAdapterThrowsException() {
assertThatNullPointerException()
.isThrownBy(() -> ChildActorNanny.newInstance(actorRefFactory, null))
.withMessage("The logger must not be null!")
.withNoCause();
}
@Test
public void startChildActorWithNullActorNameThrowsException() {
final var underTest = ChildActorNanny.newInstance(actorRefFactory, logger);
assertThatNullPointerException()
.isThrownBy(() -> underTest.startChildActor(null, Props.empty()))
.withMessage("The actorName must not be null!")
.withNoCause();
}
@Test
public void startChildActorWithEmptyActorNameThrowsException() {
final var underTest = ChildActorNanny.newInstance(actorRefFactory, logger);
assertThatIllegalArgumentException()
.isThrownBy(() -> underTest.startChildActor("", Props.empty()))
.withMessage("The argument 'actorName' must not be empty!")
.withNoCause();
}
@Test
public void startChildActorWithNullPropsThrowsException() {
final var underTest = ChildActorNanny.newInstance(actorRefFactory, logger);
assertThatNullPointerException()
.isThrownBy(() -> underTest.startChildActor(ACTOR_NAME, null))
.withMessage("The actorProps must not be null!")
.withNoCause();
}
@Test
public void startChildActorWithValidArgumentsInvokesActorRefFactory() {
final var actorProps = Props.empty();
final var actorRef = Mockito.mock(ActorRef.class);
Mockito.when(actorRefFactory.actorOf(Mockito.eq(actorProps), Mockito.eq(ACTOR_NAME))).thenReturn(actorRef);
final var underTest = ChildActorNanny.newInstance(actorRefFactory, logger);
assertThat(underTest.startChildActor(ACTOR_NAME, actorProps)).isEqualTo(actorRef);
}
@Test
public void startChildActorEncodesActorName() {
final var actorNameArgumentCaptor = ArgumentCaptor.forClass(String.class);
Mockito.when(actorRefFactory.actorOf(Mockito.any(), actorNameArgumentCaptor.capture()))
.thenReturn(Mockito.mock(ActorRef.class));
final var underTest = ChildActorNanny.newInstance(actorRefFactory, logger);
underTest.startChildActor("mü%Äctor", Props.empty());
assertThat(actorNameArgumentCaptor.getValue()).isEqualTo("m%3F%25%3Fctor");
}
@Test
public void startChildActorConflictFreeWithNullActorNameThrowsException() {
final var underTest = ChildActorNanny.newInstance(actorRefFactory, logger);
assertThatNullPointerException()
.isThrownBy(() -> underTest.startChildActorConflictFree(null, Props.empty()))
.withMessage("The baseActorName must not be null!")
.withNoCause();
}
@Test
public void startChildActorConflictFreeWithEmptyActorNameThrowsException() {
final var underTest = ChildActorNanny.newInstance(actorRefFactory, logger);
assertThatIllegalArgumentException()
.isThrownBy(() -> underTest.startChildActorConflictFree("", Props.empty()))
.withMessage("The argument 'baseActorName' must not be empty!")
.withNoCause();
}
@Test
public void startChildActorConflictFreeWithNullPropsThrowsException() {
final var underTest = ChildActorNanny.newInstance(actorRefFactory, logger);
assertThatNullPointerException()
.isThrownBy(() -> underTest.startChildActorConflictFree(ACTOR_NAME, null))
.withMessage("The actorProps must not be null!")
.withNoCause();
}
@Test
public void startChildActorConflictFreeGeneratesExpectedActorNames() {
final var otherActorName = "anotherActor";
final var invocationCountOtherActor = 7;
final var actorNameArgumentCaptor = ArgumentCaptor.forClass(String.class);
Mockito.when(actorRefFactory.actorOf(Mockito.any(), actorNameArgumentCaptor.capture()))
.thenReturn(Mockito.mock(ActorRef.class));
final var underTest = ChildActorNanny.newInstance(actorRefFactory, logger);
underTest.startChildActorConflictFree(ACTOR_NAME, Props.empty());
IntStream.range(0, invocationCountOtherActor)
.forEach(_unused -> underTest.startChildActorConflictFree(otherActorName, Props.empty()));
assertThat(actorNameArgumentCaptor.getAllValues())
.containsExactlyElementsOf(Stream.concat(
Stream.of(ACTOR_NAME + 1),
IntStream.rangeClosed(1, invocationCountOtherActor).mapToObj(count -> otherActorName + count)
).toList());
}
@Test
public void stopChildActorWithNullActorRefThrowsException() {
final var underTest = ChildActorNanny.newInstance(actorRefFactory, logger);
assertThatNullPointerException()
.isThrownBy(() -> underTest.stopChildActor(null))
.withMessage("The childActorRef must not be null!")
.withNoCause();
}
@Test
public void stopChildActorInvokesActorRefFactory() {
final var childActorRef = Mockito.mock(ActorRef.class);
final var underTest = ChildActorNanny.newInstance(actorRefFactory, logger);
underTest.stopChildActor(childActorRef);
Mockito.verify(actorRefFactory).stop(childActorRef);
}
}