added advanced-testing-examples
This commit is contained in:
David Turanski
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<?xml version="1.0" encoding="UTF-8"?>
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<beans xmlns="http://www.springframework.org/schema/beans"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xmlns:int="http://www.springframework.org/schema/integration"
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xmlns:int-jms="http://www.springframework.org/schema/integration/jms"
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xsi:schemaLocation="http://www.springframework.org/schema/integration http://www.springframework.org/schema/integration/spring-integration-2.0.xsd
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http://www.springframework.org/schema/integration/jms http://www.springframework.org/schema/integration/jms/spring-integration-jms-2.0.xsd
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http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
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<!--
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This is a test context that injects a Mock JMS template into a JMS
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inbound channel adapter. The inbound-channel-adapter provides or overrides the 'real'
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adapter for testing purposes.
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If the flow imported flow throws an exception, an ErrorMessage containg the exception will be sent
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to the error channel for additional handling.
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-->
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<import resource="classpath:integration-config.xml"/>
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<int-jms:inbound-channel-adapter jms-template="jmsTemplate"
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channel="inputChannel">
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<int:poller fixed-rate="500" max-messages-per-poll="1" error-channel="errorChannel"/>
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</int-jms:inbound-channel-adapter>
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<bean id="jmsTemplate" class="org.mockito.Mockito" factory-method="mock">
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<constructor-arg value="org.springframework.jms.core.JmsTemplate"/>
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</bean>
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</beans>
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/*
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* Copyright 2002-2011 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
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* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations under the License.
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*/
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package org.springframework.integration.samples.advance.testing.jms;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertTrue;
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import static org.mockito.Matchers.anyString;
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import static org.mockito.Mockito.doReturn;
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import static org.mockito.Mockito.mock;
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import java.io.IOException;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.TimeUnit;
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import javax.jms.JMSException;
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import javax.jms.TextMessage;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Qualifier;
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import org.springframework.integration.Message;
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import org.springframework.integration.MessageChannel;
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import org.springframework.integration.MessagingException;
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import org.springframework.integration.core.MessageHandler;
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import org.springframework.integration.core.SubscribableChannel;
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import org.springframework.jms.core.JmsTemplate;
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import org.springframework.jms.support.converter.SimpleMessageConverter;
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import org.springframework.test.context.ContextConfiguration;
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import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
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@RunWith(SpringJUnit4ClassRunner.class)
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@ContextConfiguration
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public class JmsMockTests {
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@Autowired
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JmsTemplate mockJmsTemplate;
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@Autowired
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@Qualifier("inputChannel")
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MessageChannel inputChannel;
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@Autowired
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@Qualifier("outputChannel")
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SubscribableChannel outputChannel;
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@Autowired
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@Qualifier("invalidMessageChannel")
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SubscribableChannel invalidMessageChannel;
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/**
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* This test verifies that a message received on a polling JMS inbound channel adapter is
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* routed to the designated channel and that the message payload is as expected
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*
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* @throws JMSException
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* @throws InterruptedException
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* @throws IOException
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*/
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@Test
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public void testReceiveMessage() throws JMSException, InterruptedException, IOException {
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String msg = "hello";
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boolean sent = verifyJmsMessageReceivedOnOutputChannel(msg, outputChannel,new CountDownHandler() {
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@Override
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protected void verifyMessage(Message<?> message) {
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assertEquals("hello",message.getPayload());
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}
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}
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);
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assertTrue("message not sent to expected output channel", sent);
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}
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/**
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* This test verifies that a message received on a polling JMS inbound channel adapter is
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* routed to the errorChannel and that the message payload is the expected exception
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*
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* @throws JMSException
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* @throws IOException
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* @throws InterruptedException
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*/
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@Test
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public void testReceiveInvalidMessage() throws JMSException, IOException, InterruptedException {
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String msg = "whoops";
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boolean sent = verifyJmsMessageReceivedOnOutputChannel(msg, invalidMessageChannel,new CountDownHandler() {
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@Override
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protected void verifyMessage(Message<?> message) {
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assertEquals("invalid payload",message.getPayload());
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}
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}
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);
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assertTrue("message not sent to expected output channel", sent);
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}
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/**
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* Provide a message via a mock JMS template and wait for the default timeout to receive the message on the expected channel
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* @param obj The message provided to the poller (currently must be a String)
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* @param expectedOutputChannel The expected output channel
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* @param handler An instance of CountDownHandler to handle (verify) the output message
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* @return true if the message was received on the expected channel
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* @throws JMSException
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* @throws InterruptedException
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*/
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protected boolean verifyJmsMessageReceivedOnOutputChannel(Object obj, SubscribableChannel expectedOutputChannel, CountDownHandler handler) throws JMSException, InterruptedException{
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return verifyJmsMessageOnOutputChannel(obj, expectedOutputChannel, handler, 5000);
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}
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/**
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* Provide a message via a mock JMS template and wait for the specified timeout to receive the message on the expected channel
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* @param obj The message provided to the poller (currently must be a String)
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* @param expectedOutputChannel The expected output channel
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* @param handler An instance of CountDownHandler to handle (verify) the output message
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* @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
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* not long enough
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* @return true if the message was received on the expected channel
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* @throws JMSException
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* @throws InterruptedException
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*/
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protected boolean verifyJmsMessageOnOutputChannel(Object obj, SubscribableChannel expectedOutputChannel, CountDownHandler handler,int timeoutMillisec) throws JMSException,
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InterruptedException {
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if (!(obj instanceof String)) {
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throw new IllegalArgumentException("Only TextMessage is currently supported");
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}
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/*
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* Use mocks to create a message returned to the JMS inbound adapter. It is assumed that the JmsTemplate
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* is also a mock.
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*/
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TextMessage message = mock(TextMessage.class);
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doReturn(new SimpleMessageConverter()).when(mockJmsTemplate).getMessageConverter();
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doReturn(message).when(mockJmsTemplate).receiveSelected(anyString());
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String text = (String) obj;
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CountDownLatch latch = new CountDownLatch(1);
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handler.setLatch(latch);
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doReturn(text).when(message).getText();
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expectedOutputChannel.subscribe(handler);
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return latch.await(timeoutMillisec, TimeUnit.MILLISECONDS);
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}
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/*
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* A MessageHandler that uses a CountDownLatch to syncronize with the calling thread
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*/
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private abstract class CountDownHandler implements MessageHandler {
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CountDownLatch latch;
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public final void setLatch(CountDownLatch latch){
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this.latch = latch;
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}
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protected abstract void verifyMessage(Message<?> message);
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/*
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* (non-Javadoc)
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*
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* @see
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* org.springframework.integration.core.MessageHandler#handleMessage
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* (org.springframework.integration.Message)
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*/
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public void handleMessage(Message<?> message) throws MessagingException {
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verifyMessage(message);
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latch.countDown();
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}
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}
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}
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@@ -0,0 +1,24 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
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<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
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<!-- Appenders -->
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<appender name="console" class="org.apache.log4j.ConsoleAppender">
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<param name="Target" value="System.out" />
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<layout class="org.apache.log4j.PatternLayout">
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<param name="ConversionPattern" value="[%t] %-5p: %c - %m%n" />
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</layout>
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</appender>
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<!-- Loggers -->
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<logger name="org.springframework.integration">
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<level value="info" />
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</logger>
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<!-- Root Logger -->
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<root>
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<priority value="info" />
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<appender-ref ref="console" />
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</root>
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</log4j:configuration>
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