/*
* 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.Locale;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.springframework.core.convert.ConversionException;
import org.springframework.core.convert.ConversionService;
import org.springframework.core.convert.support.DefaultConversionService;
import org.springframework.messaging.Message;
import org.springframework.messaging.support.MessageBuilder;
import static org.hamcrest.Matchers.*;
import static org.junit.Assert.*;
/**
*
* @author Stephane Nicoll
*/
public class GenericMessageConverterTests {
@Rule
public final ExpectedException thrown = ExpectedException.none();
private final ConversionService conversionService = new DefaultConversionService();
private final GenericMessageConverter converter = new GenericMessageConverter(conversionService);
@Test
public void fromMessageWithConversion() {
Message<String> content = MessageBuilder.withPayload("33").build();
assertEquals(33, converter.fromMessage(content, Integer.class));
}
@Test
public void fromMessageNoConverter() {
Message<Integer> content = MessageBuilder.withPayload(1234).build();
assertNull("No converter from integer to locale", converter.fromMessage(content, Locale.class));
}
@Test
public void fromMessageWithFailedConversion() {
Message<String> content = MessageBuilder.withPayload("test not a number").build();
thrown.expect(MessageConversionException.class);
thrown.expectCause(isA(ConversionException.class));
converter.fromMessage(content, Integer.class);
}
}