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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2022 Nordix Foundation. All rights reserved.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============LICENSE_END=========================================================
*/
package org.openecomp.sdc.be.components.kafka;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import org.apache.kafka.common.KafkaException;
import org.junit.jupiter.api.Test;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.when;
import org.mockito.ArgumentCaptor;
import org.mockito.Mockito;
import java.util.Collections;
import java.util.Collection;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.apache.kafka.clients.consumer.ConsumerRecords;
import org.apache.kafka.clients.consumer.KafkaConsumer;
import org.apache.kafka.common.TopicPartition;
import org.jetbrains.annotations.NotNull;
import org.openecomp.sdc.be.config.DistributionEngineConfiguration;
public class SdcKafkaConsumerTest {
@Test
public void TestSubscribeSuccess(){
KafkaConsumer<byte[], byte[]> mockKafkaConsumer = Mockito.mock(KafkaConsumer.class);
SdcKafkaConsumer sdcKafkaConsumer = new SdcKafkaConsumer(mockKafkaConsumer, null);
ArgumentCaptor<Collections> captor = ArgumentCaptor.forClass(Collections.class);
String testTopics = "testTopic";
sdcKafkaConsumer.subscribe(testTopics);
verify(mockKafkaConsumer).subscribe((Collection<String>) captor.capture());
}
@Test
public void TestSubscribeAlreadySubscribed(){
KafkaConsumer<byte[], byte[]> mockKafkaConsumer = Mockito.mock(KafkaConsumer.class);
SdcKafkaConsumer sdcKafkaConsumer = new SdcKafkaConsumer(mockKafkaConsumer, null);
ArgumentCaptor<Collections> captor = ArgumentCaptor.forClass(Collections.class);
String testTopics = "testTopic";
Set<String> currentSubs = new HashSet<String>();
currentSubs.add(testTopics);
when(mockKafkaConsumer.subscription()).thenReturn(currentSubs);
sdcKafkaConsumer.subscribe(testTopics);
verify(mockKafkaConsumer, never()).subscribe((Collection<String>) captor.capture());
}
@Test
public void TestPollForMessagesForSpecificTopicSuccess(){
KafkaConsumer<byte[], byte[]> mockKafkaConsumer = Mockito.mock(KafkaConsumer.class);
String testTopic = "testTopic";
ConsumerRecords mockedPollResult = getTestConsumerRecords(testTopic);
when(mockKafkaConsumer.poll(any())).thenReturn(mockedPollResult);
DistributionEngineConfiguration config = getMockDistributionEngineConfiguration();
SdcKafkaConsumer sdcKafkaConsumer = new SdcKafkaConsumer(mockKafkaConsumer, config);
List<String> returned = sdcKafkaConsumer.poll(testTopic);
assertTrue(returned.size()==1);
assertTrue(returned.contains("testTopicValue"));
}
@Test
public void testSaslJaasConfigNotFound(){
assertThrows(
KafkaException.class,
() -> new SdcKafkaConsumer(setTestDistributionEngineConfigs()),
"Sasl Jaas Config should not be found, so expected a KafkaException"
);
}
@NotNull
private DistributionEngineConfiguration getMockDistributionEngineConfiguration() {
DistributionEngineConfiguration config = new DistributionEngineConfiguration();
DistributionEngineConfiguration.DistributionStatusTopicConfig mockStatusTopic = new DistributionEngineConfiguration.DistributionStatusTopicConfig();
mockStatusTopic.setPollingIntervalSec(1);
config.setDistributionStatusTopic(mockStatusTopic);
return config;
}
@NotNull
private ConsumerRecords getTestConsumerRecords(String testTopics) {
Map map = new HashMap<Integer, ConsumerRecord>();
ConsumerRecord consumerRecord = new ConsumerRecord(testTopics, 0, 0, "", "testTopicValue");
List<ConsumerRecord> consumerRecordList = new ArrayList<>();
consumerRecordList.add(consumerRecord);
TopicPartition topicPartition = new TopicPartition(testTopics, 0);
map.put(topicPartition, consumerRecordList);
ConsumerRecords mockedPollResult = new ConsumerRecords(map);
return mockedPollResult;
}
private DistributionEngineConfiguration setTestDistributionEngineConfigs(){
DistributionEngineConfiguration.DistributionStatusTopicConfig dsTopic = new DistributionEngineConfiguration.DistributionStatusTopicConfig();
DistributionEngineConfiguration deConfiguration = new DistributionEngineConfiguration();
String testBootstrapServers = "TestBootstrapServer";
dsTopic.setConsumerGroup("consumerGroup");
dsTopic.setConsumerId("consumerId");
deConfiguration.setKafkaBootStrapServers(testBootstrapServers);
deConfiguration.setDistributionStatusTopic(dsTopic);
return deConfiguration;
}
}
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