/*
* Copyright 2002-2016 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.integration.transformer;
import static org.junit.Assert.assertEquals;
import java.util.Date;
import org.junit.Test;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessagingException;
import org.springframework.messaging.support.GenericMessage;
/**
* @author Mark Fisher
*/
public class PayloadTransformerTests {
@Test
public void testSuccessfulTransformation() {
TestPayloadTransformer transformer = new TestPayloadTransformer();
Message<?> message = new GenericMessage<String>("foo");
Message<?> result = transformer.transform(message);
assertEquals(3, result.getPayload());
}
@Test(expected = MessagingException.class)
public void testExceptionThrownByTransformer() {
TestPayloadTransformer transformer = new TestPayloadTransformer();
Message<?> message = new GenericMessage<String>("bad");
transformer.transform(message);
}
@Test(expected = MessagingException.class)
public void testWrongPayloadType() {
TestPayloadTransformer transformer = new TestPayloadTransformer();
Message<?> message = new GenericMessage<Date>(new Date());
transformer.transform(message);
}
private static class TestPayloadTransformer extends AbstractPayloadTransformer<String, Integer> {
TestPayloadTransformer() {
super();
}
@Override
public Integer transformPayload(String s) throws Exception {
if (s.equals("bad")) {
throw new Exception("bad input!");
}
return s.length();
}
}
}