/*
* Copyright 2002-2011 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.samples.testing.aggregator;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertThat;
import static org.springframework.integration.test.matcher.PayloadMatcher.hasPayload;
import java.util.List;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageChannel;
import org.springframework.integration.channel.QueueChannel;
import org.springframework.integration.samples.testing.splitter.CommaDelimitedSplitter;
import org.springframework.integration.support.MessageBuilder;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
/**
*
* Shows how to test a custom aggregator. Unit test for the class and
* tests for the integration subflow.
* The subflow has direct input and output channels. The flow would
* be a fragment of a larger flow. Since the output channel is direct,
* it has no subscribers outside the context of a larger flow. So,
* in this test case, we bridge it to a {@link QueueChannel} to
* facilitate easy testing.
*
* @author Gary Russell
* @since 2.0.2
*
*/
@ContextConfiguration // default context name is <ClassName>-context.xml
@RunWith(SpringJUnit4ClassRunner.class)
public class CommaDelimitedAggregatorTests {
@Autowired
MessageChannel inputChannel;
@Autowired
QueueChannel testChannel;
@Test
public void unitTestClass3() {
List<String> splits = new CommaDelimitedSplitter().split(" a , b, c ");
String out = new CommaDelimitedAggregator().aggregate(splits);
assertEquals("a,b,c", out);
}
@Test
public void unitTestClass2() {
List<String> splits = new CommaDelimitedSplitter().split(" a ,, c ");
String out = new CommaDelimitedAggregator().aggregate(splits);
assertEquals("a,c", out);
}
@Test
public void unitTestClass0() {
List<String> splits = new CommaDelimitedSplitter().split(",,, ,, ,, ,,");
String out = new CommaDelimitedAggregator().aggregate(splits);
assertNull(out);
}
@Test
public void testOne() {
inputChannel.send(MessageBuilder.withPayload(" a ").build());
Message<?> outMessage = testChannel.receive(0);
assertNotNull(outMessage);
assertThat(outMessage, hasPayload("A"));
outMessage = testChannel.receive(0);
assertNull("Only one message expected", outMessage);
}
@Test
public void testTwo() {
inputChannel.send(MessageBuilder.withPayload(" a ,z ").build());
Message<?> outMessage = testChannel.receive(0);
assertNotNull(outMessage);
assertThat(outMessage, hasPayload("A,Z"));
outMessage = testChannel.receive(0);
assertNull("Only one message expected", outMessage);
}
@Test
public void testSkipEmpty() {
inputChannel.send(MessageBuilder.withPayload(" a ,,z ").build());
Message<?> outMessage = testChannel.receive(0);
assertNotNull(outMessage);
assertThat(outMessage, hasPayload("A,Z"));
outMessage = testChannel.receive(0);
assertNull("Only one message expected", outMessage);
}
@Test
public void testNone() {
inputChannel.send(MessageBuilder.withPayload(" ,, ,,, ,,,,, ,,,,,,, ").build());
Message<?> outMessage = testChannel.receive(0);
assertNull("No messages expected", outMessage);
}
@Test
public void testEmpty() {
inputChannel.send(MessageBuilder.withPayload("").build());
Message<?> outMessage = testChannel.receive(0);
assertNull("No messages expected", outMessage);
}
}