/*
* Copyright 2002-2014 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
*
* 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.
*/
package org.springframework.messaging.converter;
import java.util.Collections;
import org.junit.Before;
import org.junit.Test;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageHeaders;
import org.springframework.messaging.support.MessageHeaderAccessor;
import static org.junit.Assert.*;
/**
* Unit tests for
* {@link org.springframework.messaging.converter.SimpleMessageConverter}.
*
* @author Rossen Stoyanchev
*/
public class SimpleMessageConverterTests {
private SimpleMessageConverter converter;
@Before
public void setup() {
this.converter = new SimpleMessageConverter();
}
@Test
public void toMessageWithNullPayload() {
assertNull(this.converter.toMessage(null, null));
}
@Test
public void toMessageWithPayloadAndHeaders() {
MessageHeaders headers = new MessageHeaders(Collections.<String, Object>singletonMap("foo", "bar"));
Message<?> message = this.converter.toMessage("payload", headers);
assertEquals("payload", message.getPayload());
assertEquals("bar", message.getHeaders().get("foo"));
}
@Test
public void toMessageWithPayloadAndMutableHeaders() {
MessageHeaderAccessor accessor = new MessageHeaderAccessor();
accessor.setHeader("foo", "bar");
accessor.setLeaveMutable(true);
MessageHeaders headers = accessor.getMessageHeaders();
Message<?> message = this.converter.toMessage("payload", headers);
assertEquals("payload", message.getPayload());
assertSame(headers, message.getHeaders());
assertEquals("bar", message.getHeaders().get("foo"));
}
}