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KafkaPublishTargetTest.java
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KafkaPublishTargetTest.java
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/*
* Copyright (c) 2017 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.kafka;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
import static org.mutabilitydetector.unittesting.MutabilityAssert.assertInstancesOf;
import static org.mutabilitydetector.unittesting.MutabilityMatchers.areImmutable;
import org.eclipse.ditto.connectivity.model.ConnectionConfigurationInvalidException;
import org.junit.Ignore;
import org.junit.Test;
import nl.jqno.equalsverifier.EqualsVerifier;
/**
* Unit test for {@link KafkaPublishTarget}.
*/
public class KafkaPublishTargetTest {
private static final String DEFAULT_TOPIC = "events";
@Test
public void extractsSimpleTopicName() {
final KafkaPublishTarget target = KafkaPublishTarget.fromTargetAddress(DEFAULT_TOPIC);
assertThat(target.getTopic()).isEqualTo(DEFAULT_TOPIC);
assertThat(target.getKey()).isEmpty();
assertThat(target.getPartition()).isEmpty();
}
@Test
public void extractsTopicAndKey() {
final KafkaPublishTarget target = KafkaPublishTarget.fromTargetAddress("events/anyRandomKey");
assertThat(target.getTopic()).isEqualTo(DEFAULT_TOPIC);
assertThat(target.getKey()).contains("anyRandomKey");
assertThat(target.getPartition()).isEmpty();
}
@Test
public void extractsTopicAndKeyWithSpecialChars() {
final String keyWithSpecialChars = "anyRandom/key#withSpecial*chars";
final KafkaPublishTarget target = KafkaPublishTarget.fromTargetAddress("events/" + keyWithSpecialChars);
assertThat(target.getTopic()).isEqualTo(DEFAULT_TOPIC);
assertThat(target.getKey()).contains(keyWithSpecialChars);
assertThat(target.getPartition()).isEmpty();
}
@Test
public void extractsTopicAndPartition() {
final KafkaPublishTarget target = KafkaPublishTarget.fromTargetAddress("events#3");
assertThat(target.getTopic()).isEqualTo(DEFAULT_TOPIC);
assertThat(target.getKey()).isEmpty();
assertThat(target.getPartition()).contains(3);
}
@Test
public void ignoresMissingKeyAfterSeparatorThrowsError() {
final KafkaPublishTarget target = KafkaPublishTarget.fromTargetAddress("events/");
assertThat(target.getTopic()).isEqualTo(DEFAULT_TOPIC);
assertThat(target.getKey()).isEmpty();
assertThat(target.getPartition()).isEmpty();
}
@Test
public void ignoresMissingPartitionAfterSeparatorThrowsError() {
final KafkaPublishTarget target = KafkaPublishTarget.fromTargetAddress("events#");
assertThat(target.getTopic()).isEqualTo(DEFAULT_TOPIC);
assertThat(target.getKey()).isEmpty();
assertThat(target.getPartition()).isEmpty();
}
@Test
public void invalidCharsInTopicNameThrowError() {
assertThatExceptionOfType(ConnectionConfigurationInvalidException.class)
.isThrownBy(() -> KafkaPublishTarget.fromTargetAddress("events*andstuff"));
}
@Test
public void invalidPartitionThrowsError() {
assertThatExceptionOfType(ConnectionConfigurationInvalidException.class)
.isThrownBy(() -> KafkaPublishTarget.fromTargetAddress("events#notAnInteger"));
}
@Test
public void testImmutability() {
assertInstancesOf(KafkaPublishTarget.class, areImmutable());
}
@Test
public void testHashCodeAndEquals() {
EqualsVerifier.forClass(KafkaPublishTarget.class)
.usingGetClass()
.verify();
}
@Test(expected = NullPointerException.class)
public void testNull() {
KafkaPublishTarget.fromTargetAddress(null);
}
}