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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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,
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* See the License for the specific language governing permissions and
* limitations under the License.
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package org.apache.kafka.clients.consumer;
import org.apache.kafka.common.serialization.ByteArrayDeserializer;
import org.apache.kafka.common.serialization.Deserializer;
import org.apache.kafka.common.serialization.StringDeserializer;
import org.junit.Test;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import static org.junit.Assert.assertEquals;
public class ConsumerConfigTest {
private final Deserializer keyDeserializer = new ByteArrayDeserializer();
private final Deserializer valueDeserializer = new StringDeserializer();
private final String keyDeserializerClassName = keyDeserializer.getClass().getName();
private final String valueDeserializerClassName = valueDeserializer.getClass().getName();
private final Object keyDeserializerClass = keyDeserializer.getClass();
private final Object valueDeserializerClass = valueDeserializer.getClass();
@Test
public void testDeserializerToPropertyConfig() {
Properties properties = new Properties();
properties.setProperty(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, keyDeserializerClassName);
properties.setProperty(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, valueDeserializerClassName);
Properties newProperties = ConsumerConfig.addDeserializerToConfig(properties, null, null);
assertEquals(newProperties.get(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG), keyDeserializerClassName);
assertEquals(newProperties.get(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG), valueDeserializerClassName);
properties.clear();
properties.setProperty(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, valueDeserializerClassName);
newProperties = ConsumerConfig.addDeserializerToConfig(properties, keyDeserializer, null);
assertEquals(newProperties.get(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG), keyDeserializerClassName);
assertEquals(newProperties.get(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG), valueDeserializerClassName);
properties.clear();
properties.setProperty(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, keyDeserializerClassName);
newProperties = ConsumerConfig.addDeserializerToConfig(properties, null, valueDeserializer);
assertEquals(newProperties.get(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG), keyDeserializerClassName);
assertEquals(newProperties.get(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG), valueDeserializerClassName);
properties.clear();
newProperties = ConsumerConfig.addDeserializerToConfig(properties, keyDeserializer, valueDeserializer);
assertEquals(newProperties.get(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG), keyDeserializerClassName);
assertEquals(newProperties.get(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG), valueDeserializerClassName);
}
@Test
public void testDeserializerToMapConfig() {
Map<String, Object> configs = new HashMap<>();
configs.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, keyDeserializerClass);
configs.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, valueDeserializerClass);
Map<String, Object> newConfigs = ConsumerConfig.addDeserializerToConfig(configs, null, null);
assertEquals(newConfigs.get(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG), keyDeserializerClass);
assertEquals(newConfigs.get(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG), valueDeserializerClass);
configs.clear();
configs.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, valueDeserializerClass);
newConfigs = ConsumerConfig.addDeserializerToConfig(configs, keyDeserializer, null);
assertEquals(newConfigs.get(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG), keyDeserializerClass);
assertEquals(newConfigs.get(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG), valueDeserializerClass);
configs.clear();
configs.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, keyDeserializerClass);
newConfigs = ConsumerConfig.addDeserializerToConfig(configs, null, valueDeserializer);
assertEquals(newConfigs.get(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG), keyDeserializerClass);
assertEquals(newConfigs.get(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG), valueDeserializerClass);
configs.clear();
newConfigs = ConsumerConfig.addDeserializerToConfig(configs, keyDeserializer, valueDeserializer);
assertEquals(newConfigs.get(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG), keyDeserializerClass);
assertEquals(newConfigs.get(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG), valueDeserializerClass);
}
}