测试 JMS 和 Spring 集成
Testing JMS and Spring Integration
我正在尝试写下一个测试 class 以测试在 JMS 队列上侦听的消息驱动通道适配器是否正在将消息转发到正确的通道（参考 Advanced Spring Integration Testing ).以下是测试上下文 xml:
<!-- MockRunner configuration -->
<bean id="destinationManager" class="com.mockrunner.jms.DestinationManager"/>
<bean id="outgoingDestination" factory-bean="destinationManager" factory-method="createQueue">
<constructor-arg index="0" value="demoMockRunnerQueue"/>
</bean>
<bean id="configurationManager" class="com.mockrunner.jms.ConfigurationManager"/>
<bean id="connectionFactory" class="com.mockrunner.mock.jms.MockQueueConnectionFactory">
<constructor-arg index="0" ref="destinationManager"/>
<constructor-arg index="1" ref="configurationManager"/>
</bean>
<!-- Spring JMS Template -->
<bean id="jmsTemplate" class="org.mockito.Mockito" factory-method="mock">
<constructor-arg value="org.springframework.jms.core.JmsTemplate" />
</bean>
这里是 spring 与消息驱动程序通道的集成配置：
<int:channel id="inbound"/>
<int-jms:message-driven-channel-adapter id="jmsIn"
channel="inbound"
destination="outgoingDestination"
connection-factory="connectionFactory"
acknowledge="transacted"/>
<int:service-activator input-channel="inbound"
ref="messageQueueConsumer"
method="consumeMessage"/>
<bean id="messageQueueConsumer" class="uk.co.example.consumer.SimpleMessageConsumer">
</bean>
然后是包含测试的 java class：
@Resource
JmsTemplate jmsTemplate;
/**
* "inbound" is the channel used to trigger the service activator (i.e. the message consumer)
* */
@Resource
@Qualifier("inbound")
SubscribableChannel inbound;
private static final Logger LOGGER = Logger.getLogger(InboundChannelFlowUnitTest.class);
/**
* This test verifies that a message received on a polling JMS inbound channel adapter is
* routed to the designated channel and that the message payload is as expected
*
* @throws JMSException
* @throws InterruptedException
* @throws IOException
*/
@Test
public void testReceiveMessage() throws JMSException, InterruptedException, IOException {
String msg = "hello";
boolean sent = verifyJmsMessageReceivedOnChannel(msg, inbound, new CountDownHandler() {
@Override
protected void verifyMessage(Message<?> message) {
assertEquals("hello", message.getPayload());
}
}
);
assertTrue("message not sent to expected output channel", sent);
}
/**
* Provide a message via a mock JMS template and wait for the default timeout to receive the message on the expected channel
* @param obj The message provided to the poller (currently must be a String)
* @param expectedOutputChannel The expected output channel
* @param handler An instance of CountDownHandler to handle (verify) the output message
* @return true if the message was received on the expected channel
* @throws JMSException
* @throws InterruptedException
*/
protected boolean verifyJmsMessageReceivedOnChannel(Object obj, SubscribableChannel expectedOutputChannel, CountDownHandler handler) throws JMSException, InterruptedException{
return verifyJmsMessageOnOutputChannel(obj, expectedOutputChannel, handler, 2000);
}
/**
* Provide a message via a mock JMS template and wait for the specified timeout to receive the message on the expected channel
* @param obj The message provided to the poller (currently must be a String)
* @param expectedOutputChannel The expected output channel
* @param handler An instance of CountDownHandler to handle (verify) the output message
* @param timeoutMillisec The timeout period. Note that this must allow at least enough time to process the entire flow. Only set if the default is
* not long enough
* @return true if the message was received on the expected channel
* @throws JMSException
* @throws InterruptedException
*/
protected boolean verifyJmsMessageOnOutputChannel(Object obj, SubscribableChannel expectedOutputChannel, CountDownHandler handler,int timeoutMillisec) throws JMSException,
InterruptedException {
if (!(obj instanceof String)) {
throw new IllegalArgumentException("Only TextMessage is currently supported");
}
/*
* Use mocks to create a message returned to the JMS inbound adapter. It is assumed that the JmsTemplate
* is also a mock.
*/
TextMessage message = mock(TextMessage.class);
doReturn(new SimpleMessageConverter()).when(jmsTemplate).getMessageConverter();
doReturn(message).when(jmsTemplate).receiveSelected(anyString());
String text = (String) obj;
CountDownLatch latch = new CountDownLatch(1);
handler.setLatch(latch);
doReturn(text).when(message).getText();
expectedOutputChannel.subscribe(handler);
boolean latchCountedToZero = latch.await(timeoutMillisec, TimeUnit.MILLISECONDS);
if (!latchCountedToZero) {
LOGGER.warn(String.format("The specified waiting time of the latch (%s ms) elapsed.", timeoutMillisec));
}
return latchCountedToZero;
}
/*
* A MessageHandler that uses a CountDownLatch to synchronize with the calling thread
*/
private abstract class CountDownHandler implements MessageHandler {
CountDownLatch latch;
public final void setLatch(CountDownLatch latch){
this.latch = latch;
}
protected abstract void verifyMessage(Message<?> message);
/*
* (non-Javadoc)
*
* @see
* org.springframework.integration.core.MessageHandler#handleMessage
* (org.springframework.integration.Message)
*/
public void handleMessage(Message<?> message) throws MessagingException {
verifyMessage(message);
latch.countDown();
}
}
但我得到以下异常：
[0;33mWARN [main] [InboundChannelFlowUnitTest] The specified waiting time of the latch (2000 ms) elapsed.
[m
java.lang.AssertionError: message not sent to expected output channel
有什么提示吗？
编辑：
我添加了以下测试：
@SuppressWarnings("unchecked")
@Test
public void testMessageDriven() throws Exception {
TextMessage message = mock(TextMessage.class);
when(message.getText()).thenReturn("foo");
Session session = mock(Session.class);
((SessionAwareMessageListener<TextMessage>) this.messageListenerContainer.getMessageListener()).onMessage(message, session);
CountDownHandler myCountDownHandler = new CountDownHandler() {
@Override
protected void verifyMessage(Message<?> message) {
assertNotNull(message);
assertEquals("hello", message.getPayload());
}
};
CountDownLatch myLatch = new CountDownLatch(2);
myCountDownHandler.setLatch(myLatch);
this.inbound.subscribe(myCountDownHandler);
boolean receivedBeforeZero = myLatch.await(3, TimeUnit.SECONDS);
assertTrue(receivedBeforeZero);
}
并将消息驱动的适配器更改为：
<int-jms:message-driven-channel-adapter id="jmsIn"
channel="inbound"
container="messageListenerContainer"
acknowledge="transacted"/>
但还是报错如下：
[0;33mWARN [main] [InboundChannelFlowUnitTest] The specified waiting time of the latch (3 sec) elapsed.
[m
java.lang.AssertionError
at org.junit.Assert.fail(Assert.java:92)
at org.junit.Assert.assertTrue(Assert.java:43)
at org.junit.Assert.assertTrue(Assert.java:54)
消息驱动的适配器不使用 JmsTemplate 所以模拟它和它的接收方法不会做任何事情。
您必须 mock/stub 消息侦听器容器并调用其 MessageListener。您可以通过 'container' 属性向适配器提供模拟容器。
编辑:
还不完全清楚为什么需要 mock/test 框架组件；您只需将测试消息发送到频道，即可将测试消息注入到流程中。
但是，如果您使用的是自定义消息转换器，并且想就地对其进行测试，则可以模拟容器。
我正在尝试写下一个测试 class 以测试在 JMS 队列上侦听的消息驱动通道适配器是否正在将消息转发到正确的通道（参考 Advanced Spring Integration Testing ).以下是测试上下文 xml:
<!-- MockRunner configuration -->
<bean id="destinationManager" class="com.mockrunner.jms.DestinationManager"/>
<bean id="outgoingDestination" factory-bean="destinationManager" factory-method="createQueue">
<constructor-arg index="0" value="demoMockRunnerQueue"/>
</bean>
<bean id="configurationManager" class="com.mockrunner.jms.ConfigurationManager"/>
<bean id="connectionFactory" class="com.mockrunner.mock.jms.MockQueueConnectionFactory">
<constructor-arg index="0" ref="destinationManager"/>
<constructor-arg index="1" ref="configurationManager"/>
</bean>
<!-- Spring JMS Template -->
<bean id="jmsTemplate" class="org.mockito.Mockito" factory-method="mock">
<constructor-arg value="org.springframework.jms.core.JmsTemplate" />
</bean>
这里是 spring 与消息驱动程序通道的集成配置：
<int:channel id="inbound"/>
<int-jms:message-driven-channel-adapter id="jmsIn"
channel="inbound"
destination="outgoingDestination"
connection-factory="connectionFactory"
acknowledge="transacted"/>
<int:service-activator input-channel="inbound"
ref="messageQueueConsumer"
method="consumeMessage"/>
<bean id="messageQueueConsumer" class="uk.co.example.consumer.SimpleMessageConsumer">
</bean>
然后是包含测试的 java class：
@Resource
JmsTemplate jmsTemplate;
/**
* "inbound" is the channel used to trigger the service activator (i.e. the message consumer)
* */
@Resource
@Qualifier("inbound")
SubscribableChannel inbound;
private static final Logger LOGGER = Logger.getLogger(InboundChannelFlowUnitTest.class);
/**
* This test verifies that a message received on a polling JMS inbound channel adapter is
* routed to the designated channel and that the message payload is as expected
*
* @throws JMSException
* @throws InterruptedException
* @throws IOException
*/
@Test
public void testReceiveMessage() throws JMSException, InterruptedException, IOException {
String msg = "hello";
boolean sent = verifyJmsMessageReceivedOnChannel(msg, inbound, new CountDownHandler() {
@Override
protected void verifyMessage(Message<?> message) {
assertEquals("hello", message.getPayload());
}
}
);
assertTrue("message not sent to expected output channel", sent);
}
/**
* Provide a message via a mock JMS template and wait for the default timeout to receive the message on the expected channel
* @param obj The message provided to the poller (currently must be a String)
* @param expectedOutputChannel The expected output channel
* @param handler An instance of CountDownHandler to handle (verify) the output message
* @return true if the message was received on the expected channel
* @throws JMSException
* @throws InterruptedException
*/
protected boolean verifyJmsMessageReceivedOnChannel(Object obj, SubscribableChannel expectedOutputChannel, CountDownHandler handler) throws JMSException, InterruptedException{
return verifyJmsMessageOnOutputChannel(obj, expectedOutputChannel, handler, 2000);
}
/**
* Provide a message via a mock JMS template and wait for the specified timeout to receive the message on the expected channel
* @param obj The message provided to the poller (currently must be a String)
* @param expectedOutputChannel The expected output channel
* @param handler An instance of CountDownHandler to handle (verify) the output message
* @param timeoutMillisec The timeout period. Note that this must allow at least enough time to process the entire flow. Only set if the default is
* not long enough
* @return true if the message was received on the expected channel
* @throws JMSException
* @throws InterruptedException
*/
protected boolean verifyJmsMessageOnOutputChannel(Object obj, SubscribableChannel expectedOutputChannel, CountDownHandler handler,int timeoutMillisec) throws JMSException,
InterruptedException {
if (!(obj instanceof String)) {
throw new IllegalArgumentException("Only TextMessage is currently supported");
}
/*
* Use mocks to create a message returned to the JMS inbound adapter. It is assumed that the JmsTemplate
* is also a mock.
*/
TextMessage message = mock(TextMessage.class);
doReturn(new SimpleMessageConverter()).when(jmsTemplate).getMessageConverter();
doReturn(message).when(jmsTemplate).receiveSelected(anyString());
String text = (String) obj;
CountDownLatch latch = new CountDownLatch(1);
handler.setLatch(latch);
doReturn(text).when(message).getText();
expectedOutputChannel.subscribe(handler);
boolean latchCountedToZero = latch.await(timeoutMillisec, TimeUnit.MILLISECONDS);
if (!latchCountedToZero) {
LOGGER.warn(String.format("The specified waiting time of the latch (%s ms) elapsed.", timeoutMillisec));
}
return latchCountedToZero;
}
/*
* A MessageHandler that uses a CountDownLatch to synchronize with the calling thread
*/
private abstract class CountDownHandler implements MessageHandler {
CountDownLatch latch;
public final void setLatch(CountDownLatch latch){
this.latch = latch;
}
protected abstract void verifyMessage(Message<?> message);
/*
* (non-Javadoc)
*
* @see
* org.springframework.integration.core.MessageHandler#handleMessage
* (org.springframework.integration.Message)
*/
public void handleMessage(Message<?> message) throws MessagingException {
verifyMessage(message);
latch.countDown();
}
}
但我得到以下异常：
[0;33mWARN [main] [InboundChannelFlowUnitTest] The specified waiting time of the latch (2000 ms) elapsed.
[m
java.lang.AssertionError: message not sent to expected output channel
有什么提示吗？
编辑：
我添加了以下测试：
@SuppressWarnings("unchecked")
@Test
public void testMessageDriven() throws Exception {
TextMessage message = mock(TextMessage.class);
when(message.getText()).thenReturn("foo");
Session session = mock(Session.class);
((SessionAwareMessageListener<TextMessage>) this.messageListenerContainer.getMessageListener()).onMessage(message, session);
CountDownHandler myCountDownHandler = new CountDownHandler() {
@Override
protected void verifyMessage(Message<?> message) {
assertNotNull(message);
assertEquals("hello", message.getPayload());
}
};
CountDownLatch myLatch = new CountDownLatch(2);
myCountDownHandler.setLatch(myLatch);
this.inbound.subscribe(myCountDownHandler);
boolean receivedBeforeZero = myLatch.await(3, TimeUnit.SECONDS);
assertTrue(receivedBeforeZero);
}
并将消息驱动的适配器更改为：
<int-jms:message-driven-channel-adapter id="jmsIn"
channel="inbound"
container="messageListenerContainer"
acknowledge="transacted"/>
但还是报错如下：
[0;33mWARN [main] [InboundChannelFlowUnitTest] The specified waiting time of the latch (3 sec) elapsed.
[m
java.lang.AssertionError
at org.junit.Assert.fail(Assert.java:92)
at org.junit.Assert.assertTrue(Assert.java:43)
at org.junit.Assert.assertTrue(Assert.java:54)
消息驱动的适配器不使用 JmsTemplate 所以模拟它和它的接收方法不会做任何事情。
您必须 mock/stub 消息侦听器容器并调用其 MessageListener。您可以通过 'container' 属性向适配器提供模拟容器。
编辑:
还不完全清楚为什么需要 mock/test 框架组件；您只需将测试消息发送到频道，即可将测试消息注入到流程中。
但是，如果您使用的是自定义消息转换器，并且想就地对其进行测试，则可以模拟容器。