/*
 * Copyright 2012-2020 the original author or authors.
 *
 * 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
 *
 *      https://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.
 */

package org.springframework.boot.autoconfigure.kafka;

import org.junit.jupiter.api.Test;

import org.springframework.boot.autoconfigure.kafka.KafkaProperties.IsolationLevel;
import org.springframework.boot.testsupport.classpath.ClassPathOverrides;
import org.springframework.test.util.ReflectionTestUtils;

import static org.assertj.core.api.Assertions.assertThat;

/**
 * Tests for {@link KafkaProperties} with Kafka 2.4.
 *
 * @author Stephane Nicoll
 */
@ClassPathOverrides("org.apache.kafka:kafka-clients:2.4.1")
class KafkaPropertiesKafka24Tests {

	@Test
	void isolationLevelEnumConsistentWithKafkaVersion() throws ClassNotFoundException {
		Class<?> isolationLevelClass = Class.forName("org.apache.kafka.common.requests.IsolationLevel");
		Object[] original = ReflectionTestUtils.invokeMethod(isolationLevelClass, "values");
		assertThat(original).extracting("name").containsExactly(IsolationLevel.READ_UNCOMMITTED.name(),
				IsolationLevel.READ_COMMITTED.name());
		assertThat(original).extracting("id").containsExactly(IsolationLevel.READ_UNCOMMITTED.id(),
				IsolationLevel.READ_COMMITTED.id());
		assertThat(original).hasSize(IsolationLevel.values().length);
	}

}

Add IsolationLevel regression test with Kafka 2.4
Add IsolationLevel regression test with Kafka 2.4

This commit makes sure that our copy of the IsolationLevel enum is
consistent with what Kafka 2.4 provides

Closes gh-20822
