/*
* 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.jms.support;
import java.io.ByteArrayInputStream;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import javax.jms.BytesMessage;
import javax.jms.JMSException;
import javax.jms.MapMessage;
import javax.jms.Message;
import javax.jms.ObjectMessage;
import javax.jms.Session;
import javax.jms.TextMessage;
import org.junit.Test;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import org.springframework.jms.support.converter.MessageConversionException;
import org.springframework.jms.support.converter.SimpleMessageConverter;
import static org.junit.Assert.*;
import static org.mockito.BDDMockito.*;
/**
* Unit tests for the {@link SimpleMessageConverter} class.
*
* @author Juergen Hoeller
* @author Rick Evans
* @since 18.09.2004
*/
public final class SimpleMessageConverterTests {
@Test
public void testStringConversion() throws JMSException {
Session session = mock(Session.class);
TextMessage message = mock(TextMessage.class);
String content = "test";
given(session.createTextMessage(content)).willReturn(message);
given(message.getText()).willReturn(content);
SimpleMessageConverter converter = new SimpleMessageConverter();
Message msg = converter.toMessage(content, session);
assertEquals(content, converter.fromMessage(msg));
}
@Test
public void testByteArrayConversion() throws JMSException {
Session session = mock(Session.class);
BytesMessage message = mock(BytesMessage.class);
byte[] content = "test".getBytes();
final ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(content);
given(session.createBytesMessage()).willReturn(message);
given(message.getBodyLength()).willReturn((long) content.length);
given(message.readBytes(any(byte[].class))).willAnswer(new Answer<Integer>() {
@Override
public Integer answer(InvocationOnMock invocation) throws Throwable {
return byteArrayInputStream.read((byte[]) invocation.getArguments()[0]);
}
});
SimpleMessageConverter converter = new SimpleMessageConverter();
Message msg = converter.toMessage(content, session);
assertEquals(content.length, ((byte[]) converter.fromMessage(msg)).length);
verify(message).writeBytes(content);
}
@Test
public void testMapConversion() throws JMSException {
Session session = mock(Session.class);
MapMessage message = mock(MapMessage.class);
Map<String, String> content = new HashMap<String, String>(2);
content.put("key1", "value1");
content.put("key2", "value2");
given(session.createMapMessage()).willReturn(message);
given(message.getMapNames()).willReturn(Collections.enumeration(content.keySet()));
given(message.getObject("key1")).willReturn("value1");
given(message.getObject("key2")).willReturn("value2");
SimpleMessageConverter converter = new SimpleMessageConverter();
Message msg = converter.toMessage(content, session);
assertEquals(content, converter.fromMessage(msg));
verify(message).setObject("key1", "value1");
verify(message).setObject("key2", "value2");
}
@Test
public void testSerializableConversion() throws JMSException {
Session session = mock(Session.class);
ObjectMessage message = mock(ObjectMessage.class);
Integer content = new Integer(5);
given(session.createObjectMessage(content)).willReturn(message);
given(message.getObject()).willReturn(content);
SimpleMessageConverter converter = new SimpleMessageConverter();
Message msg = converter.toMessage(content, session);
assertEquals(content, converter.fromMessage(msg));
}
@Test(expected=MessageConversionException.class)
public void testToMessageThrowsExceptionIfGivenNullObjectToConvert() throws Exception {
new SimpleMessageConverter().toMessage(null, null);
}
@Test(expected=MessageConversionException.class)
public void testToMessageThrowsExceptionIfGivenIncompatibleObjectToConvert() throws Exception {
new SimpleMessageConverter().toMessage(new Object(), null);
}
@Test
public void testToMessageSimplyReturnsMessageAsIsIfSuppliedWithMessage() throws JMSException {
Session session = mock(Session.class);
ObjectMessage message = mock(ObjectMessage.class);
SimpleMessageConverter converter = new SimpleMessageConverter();
Message msg = converter.toMessage(message, session);
assertSame(message, msg);
}
@Test
public void testFromMessageSimplyReturnsMessageAsIsIfSuppliedWithMessage() throws JMSException {
Message message = mock(Message.class);
SimpleMessageConverter converter = new SimpleMessageConverter();
Object msg = converter.fromMessage(message);
assertSame(message, msg);
}
@Test
public void testMapConversionWhereMapHasNonStringTypesForKeys() throws JMSException {
MapMessage message = mock(MapMessage.class);
final Session session = mock(Session.class);
given(session.createMapMessage()).willReturn(message);
final Map<Integer, String> content = new HashMap<Integer, String>(1);
content.put(1, "value1");
final SimpleMessageConverter converter = new SimpleMessageConverter();
try {
converter.toMessage(content, session);
fail("expected MessageConversionException");
} catch (MessageConversionException ex) { /* expected */ }
}
@Test
public void testMapConversionWhereMapHasNNullForKey() throws JMSException {
MapMessage message = mock(MapMessage.class);
final Session session = mock(Session.class);
given(session.createMapMessage()).willReturn(message);
final Map<Object, String> content = new HashMap<Object, String>(1);
content.put(null, "value1");
final SimpleMessageConverter converter = new SimpleMessageConverter();
try {
converter.toMessage(content, session);
fail("expected MessageConversionException");
} catch (MessageConversionException ex) { /* expected */ }
}
}