/*
 * Copyright 2002-2019 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.integration.transformer;

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

import org.junit.Test;
import org.junit.runner.RunWith;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.integration.annotation.Transformer;
import org.springframework.integration.history.MessageHistory;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.MessageHeaders;
import org.springframework.messaging.PollableChannel;
import org.springframework.messaging.handler.annotation.Header;
import org.springframework.messaging.handler.annotation.Headers;
import org.springframework.messaging.handler.annotation.Payload;
import org.springframework.messaging.support.GenericMessage;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

/**
 * @author Gary Russell
 * @since 2.2
 *
 */
@ContextConfiguration
@RunWith(SpringJUnit4ClassRunner.class)
public class MessageHistoryParameterTests {

	@Autowired
	private MessageChannel input;

	@Autowired
	private PollableChannel output;

	@Test
	public void test() {
		input.send(new GenericMessage<String>("foo"));
		assertThat(output.receive(10000)).isNotNull();
	}

	public static class MessageHistoryAwareTransformer {

		@Transformer
		public Object transform(@Headers MessageHeaders headers,
				@Header("history") MessageHistory history, @Payload Object payload) {

			return payload;
		}
	}

}
