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SubscribeSuccessTest.java
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SubscribeSuccessTest.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.mqtt.hivemq.subscribing;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
import static org.assertj.core.api.Assertions.assertThatNullPointerException;
import java.util.Collections;
import java.util.List;
import java.util.stream.Stream;
import org.eclipse.ditto.connectivity.service.messaging.mqtt.hivemq.publish.GenericMqttPublish;
import org.junit.Before;
import org.junit.Test;
import com.hivemq.client.mqtt.datatypes.MqttQos;
import com.hivemq.client.mqtt.datatypes.MqttTopic;
import com.hivemq.client.mqtt.datatypes.MqttTopicFilter;
import akka.stream.javadsl.Source;
import nl.jqno.equalsverifier.EqualsVerifier;
/**
* Unit test for {@link SubscribeSuccess}.
*/
public final class SubscribeSuccessTest {
private static final MqttTopic MQTT_TOPIC_SOURCE_STATUS = MqttTopic.of("source/status");
private static final MqttTopic MQTT_TOPIC_SOURCE_TEMPERATURE = MqttTopic.of("source/thermostat/temperature");
private List<MqttTopicFilter> mqttTopicFilters;
@Before
public void before() {
mqttTopicFilters = Stream.of(MQTT_TOPIC_SOURCE_STATUS, MQTT_TOPIC_SOURCE_TEMPERATURE)
.map(MqttTopic::toString)
.map(MqttTopicFilter::of)
.toList();
}
@Test
public void testHashCodeAndEquals() {
EqualsVerifier.forClass(SubscribeSuccess.class)
.usingGetClass()
.withPrefabValues(Source.class,
Source.single(
GenericMqttPublish.builder(
MQTT_TOPIC_SOURCE_STATUS,
MqttQos.AT_LEAST_ONCE
).build()
),
Source.single(
GenericMqttPublish.builder(
MQTT_TOPIC_SOURCE_TEMPERATURE,
MqttQos.AT_MOST_ONCE
).build()
))
.verify();
}
@Test
public void newInstanceWithNullMqttTopicFiltersThrowsException() {
assertThatNullPointerException()
.isThrownBy(() -> SubscribeSuccess.newInstance(null, Source.empty()))
.withMessage("The mqttTopicFilters must not be null!")
.withNoCause();
}
@Test
public void newInstanceWithEmptyMqttTopicFiltersThrowsException() {
assertThatIllegalArgumentException()
.isThrownBy(() -> SubscribeSuccess.newInstance(Collections.emptyList(), Source.empty()))
.withMessage("The argument 'mqttTopicFilters' must not be empty!")
.withNoCause();
}
@Test
public void newInstanceWithNullMqttPublishSourceThrowsException() {
assertThatNullPointerException()
.isThrownBy(() -> SubscribeSuccess.newInstance(mqttTopicFilters, null))
.withMessage("The mqttPublishSource must not be null!")
.withNoCause();
}
@Test
public void getMqttTopicFiltersReturnsExpected() {
final var underTest = SubscribeSuccess.newInstance(mqttTopicFilters, Source.empty());
assertThat(underTest.getMqttTopicFilters()).hasSameElementsAs(mqttTopicFilters);
}
@Test
public void isSuccessReturnsTrue() {
final var underTest = SubscribeSuccess.newInstance(mqttTopicFilters, Source.empty());
assertThat(underTest.isSuccess()).isTrue();
}
@Test
public void isFailureReturnsFalse() {
final var underTest = SubscribeSuccess.newInstance(mqttTopicFilters, Source.empty());
assertThat(underTest.isFailure()).isFalse();
}
@Test
public void getMqttPublishSourceReturnsExpected() {
final var mqttPublishSource = Source.fromJavaStream(
() -> Stream.of(
GenericMqttPublish.builder(MQTT_TOPIC_SOURCE_STATUS, MqttQos.AT_LEAST_ONCE).build(),
GenericMqttPublish.builder(MQTT_TOPIC_SOURCE_TEMPERATURE, MqttQos.AT_MOST_ONCE).build()
)
);
final var underTest = SubscribeSuccess.newInstance(mqttTopicFilters, mqttPublishSource);
assertThat(underTest.getMqttPublishSourceOrThrow()).isEqualTo(mqttPublishSource);
}
@Test
public void getErrorOrThrowThrowsException() {
final var underTest = SubscribeSuccess.newInstance(mqttTopicFilters, Source.empty());
assertThatIllegalStateException()
.isThrownBy(underTest::getErrorOrThrow)
.withMessage("Success cannot provide an error.")
.withNoCause();
}
}