/*
* 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.filter;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import static org.springframework.integration.test.matcher.PayloadMatcher.hasPayload;
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.support.MessageBuilder;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
/**
*
* Shows how to test a filter.
* The filter has direct input and output channels. The filter configuration 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.
*
* Similarly, we bridge the discard channel which is configured on the second
* filter instance.
*
* @author Gary Russell
* @since 2.0.2
*/
@ContextConfiguration // default context name is <ClassName>-context.xml
@RunWith(SpringJUnit4ClassRunner.class)
public class PetFilterTests {
@Autowired
MessageChannel inputChannel;
@Autowired
MessageChannel inputChannel2;
@Autowired
QueueChannel testChannel;
@Autowired
QueueChannel testChannel2;
@Autowired
QueueChannel testDiscardChannel2;
@Test
public void unitTestClassCat() {
String payload = "CAT:Fluffy";
assertFalse(new PetFilter().dogsOnly(payload));
}
@Test
public void unitTestClassDog() {
String payload = "DOG:Fido";
assertTrue(new PetFilter().dogsOnly(payload));
}
@Test
public void unitTestClassLizard() {
String payload = "LIZARD:Scaly";
assertFalse(new PetFilter().dogsOnly(payload));
}
@Test
public void testCat() {
String payload = "CAT:Fluffy";
Message<String> message = MessageBuilder.withPayload(payload).build();
inputChannel.send(message);
Message<?> outMessage = testChannel.receive(0);
assertNull("Expected no output message", outMessage);
}
@Test
public void testDog() {
String payload = "DOG:Fido";
Message<String> message = MessageBuilder.withPayload(payload).build();
inputChannel.send(message);
Message<?> outMessage = testChannel.receive(0);
assertNotNull("Expected an output message", outMessage);
assertThat(outMessage, hasPayload(payload));
}
@Test
public void testLizard() {
String payload = "LIZARD:Scaly";
Message<String> message = MessageBuilder.withPayload(payload).build();
inputChannel.send(message);
Message<?> outMessage = testChannel.receive(0);
assertNull("Expected no output message", outMessage);
}
@Test
public void testCatDiscard() {
String payload = "CAT:Fluffy";
Message<String> message = MessageBuilder.withPayload(payload).build();
inputChannel2.send(message);
Message<?> outMessage = testChannel2.receive(0);
assertNull("Expected no output message", outMessage);
outMessage = testDiscardChannel2.receive(0);
assertNotNull("Expected discard message", outMessage);
assertThat(outMessage, hasPayload(payload));
}
@Test
public void testDogDiscard() {
String payload = "DOG:Fido";
Message<String> message = MessageBuilder.withPayload(payload).build();
inputChannel2.send(message);
Message<?> outMessage = testChannel.receive(0);
assertNotNull("Expected an output message", outMessage);
assertThat(outMessage, hasPayload(payload));
outMessage = testDiscardChannel2.receive(0);
assertNull("Expected no discard message", outMessage);
}
@Test
public void testLizardDiscard() {
String payload = "LIZARD:Scaly";
Message<String> message = MessageBuilder.withPayload(payload).build();
inputChannel2.send(message);
Message<?> outMessage = testChannel.receive(0);
assertNull("Expected no output message", outMessage);
outMessage = testDiscardChannel2.receive(0);
assertNotNull("Expected discard message", outMessage);
assertThat(outMessage, hasPayload(payload));
}
}