/*
* Copyright 2014-2016 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.channel;
import static org.hamcrest.Matchers.instanceOf;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.fail;
import org.hamcrest.Matchers;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.BeanInstantiationException;
import org.springframework.beans.factory.BeanCreationException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.parsing.BeanDefinitionParsingException;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.PollableChannel;
import org.springframework.messaging.support.GenericMessage;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
/**
* @author Gary Russell
* @since 4.0
*
*/
@ContextConfiguration
@RunWith(SpringJUnit4ClassRunner.class)
public class FixedSubscriberChannelTests {
@Autowired
private MessageChannel in;
@Autowired
private PollableChannel out;
@Test
public void testHappyDay() {
this.in.send(new GenericMessage<String>("foo"));
Message<?> out = this.out.receive(0);
assertEquals("FOO", out.getPayload());
assertThat(this.in, instanceOf(FixedSubscriberChannel.class));
}
@Test
public void testNoSubs() {
ConfigurableApplicationContext context = null;
try {
context = new ClassPathXmlApplicationContext(this.getClass().getSimpleName() + "NoSubs-fail-context.xml",
this.getClass());
fail("Expected exception");
}
catch (Exception e) {
assertThat(e, instanceOf(BeanCreationException.class));
assertThat(e.getCause(), instanceOf(BeanInstantiationException.class));
assertThat(e.getCause().getCause(), instanceOf(IllegalArgumentException.class));
assertThat(e.getCause().getCause().getMessage(), Matchers.containsString("Cannot instantiate a"));
}
if (context != null) {
context.close();
}
}
@Test
public void testTwoSubs() {
ConfigurableApplicationContext context = null;
try {
context = new ClassPathXmlApplicationContext(this.getClass().getSimpleName() + "TwoSubs-fail-context.xml",
this.getClass());
fail("Expected exception");
}
catch (Exception e) {
assertThat(e, instanceOf(BeanDefinitionParsingException.class));
assertThat(e.getMessage(), Matchers.containsString("Only one subscriber is allowed for a FixedSubscriberChannel."));
}
if (context != null) {
context.close();
}
}
@Test
public void testTwoSubsAfter() {
ConfigurableApplicationContext context = null;
try {
context = new ClassPathXmlApplicationContext(this.getClass().getSimpleName() + "TwoSubsAfter-fail-context.xml",
this.getClass());
fail("Expected exception");
}
catch (Exception e) {
assertThat(e, instanceOf(IllegalArgumentException.class));
assertThat(e.getMessage(), Matchers.containsString("Only one subscriber is allowed for a FixedSubscriberChannel."));
}
if (context != null) {
context.close();
}
}
@Test
public void testInterceptors() {
ConfigurableApplicationContext context = null;
try {
context = new ClassPathXmlApplicationContext(this.getClass().getSimpleName() + "Interceptors-fail-context.xml",
this.getClass());
fail("Expected exception");
}
catch (Exception e) {
assertThat(e, instanceOf(BeanDefinitionParsingException.class));
assertThat(e.getMessage(), Matchers.containsString("Cannot have interceptors when 'fixed-subscriber=\"true\"'"));
}
if (context != null) {
context.close();
}
}
@Test
public void testDatatype() {
ConfigurableApplicationContext context = null;
try {
context = new ClassPathXmlApplicationContext(this.getClass().getSimpleName() + "Datatype-fail-context.xml",
this.getClass());
fail("Expected exception");
}
catch (Exception e) {
assertThat(e, instanceOf(BeanDefinitionParsingException.class));
assertThat(e.getMessage(), Matchers.containsString("Cannot have 'datatype' when 'fixed-subscriber=\"true\"'"));
}
if (context != null) {
context.close();
}
}
@Test
public void testConverter() {
ConfigurableApplicationContext context = null;
try {
context = new ClassPathXmlApplicationContext(this.getClass().getSimpleName() + "Converter-fail-context.xml",
this.getClass());
fail("Expected exception");
}
catch (Exception e) {
assertThat(e, instanceOf(BeanDefinitionParsingException.class));
assertThat(e.getMessage(), Matchers.containsString("Cannot have 'message-converter' when 'fixed-subscriber=\"true\"'"));
}
if (context != null) {
context.close();
}
}
@Test
public void testQueue() {
ConfigurableApplicationContext context = null;
try {
context = new ClassPathXmlApplicationContext(this.getClass().getSimpleName() + "Queue-fail-context.xml",
this.getClass());
fail("Expected exception");
}
catch (Exception e) {
assertThat(e, instanceOf(BeanDefinitionParsingException.class));
assertThat(e.getMessage(), Matchers.containsString("The 'fixed-subscriber' attribute is not allowed when a <queue/> child element is present."));
}
if (context != null) {
context.close();
}
}
@Test
public void testDispatcher() {
ConfigurableApplicationContext context = null;
try {
context = new ClassPathXmlApplicationContext(this.getClass().getSimpleName() + "Dispatcher-fail-context.xml",
this.getClass());
fail("Expected exception");
}
catch (Exception e) {
assertThat(e, instanceOf(BeanDefinitionParsingException.class));
assertThat(e.getMessage(), Matchers.containsString("The 'fixed-subscriber' attribute is not allowed when a <dispatcher/> child element is present."));
}
if (context != null) {
context.close();
}
}
}