/* Copyright 2009-2012 Comcast Interactive Media, LLC.
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.fishwife.jrugged.spring;
import org.easymock.EasyMock;
import org.fishwife.jrugged.CircuitBreaker;
import org.fishwife.jrugged.CircuitBreakerConfig;
import org.fishwife.jrugged.DefaultFailureInterpreter;
import org.junit.Before;
import org.junit.Test;
import org.springframework.jmx.export.MBeanExporter;
import org.springframework.test.util.ReflectionTestUtils;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import java.util.concurrent.ConcurrentHashMap;
import static junit.framework.Assert.assertEquals;
import static junit.framework.Assert.assertNotNull;
import static junit.framework.Assert.assertNull;
import static junit.framework.Assert.assertSame;
import static org.easymock.EasyMock.createMock;
import static org.easymock.EasyMock.replay;
public class TestCircuitBreakerBeanFactory {
private CircuitBreakerBeanFactory factory;
private CircuitBreakerConfig config;
MBeanExporter mockMBeanExporter;
@Before
public void setUp() {
factory = new CircuitBreakerBeanFactory();
config = new CircuitBreakerConfig(10000L, new DefaultFailureInterpreter(5, 30000L));
mockMBeanExporter = createMock(MBeanExporter.class);
mockMBeanExporter.registerManagedResource(EasyMock.<Object>anyObject(), EasyMock.<ObjectName>anyObject());
replay(mockMBeanExporter);
}
@Test
public void testCreateCircuitBreaker() {
CircuitBreaker createdBreaker = factory.createCircuitBreaker("testCreate", config);
assertNotNull(createdBreaker);
}
@Test
public void testCreateDuplicateCircuitBreaker() {
String name = "testCreate";
CircuitBreaker createdBreaker = factory.createCircuitBreaker(name, config);
CircuitBreaker secondBreaker = factory.createCircuitBreaker(name, config);
assertSame(createdBreaker, secondBreaker);
}
@Test
public void testFindCircuitBreakerBean() {
String breakerName = "testFind";
CircuitBreaker createdBreaker = factory.createCircuitBreaker(breakerName, config);
CircuitBreakerBean foundBreaker = factory.findCircuitBreakerBean(breakerName);
assertNotNull(foundBreaker);
assertEquals(createdBreaker, foundBreaker);
}
@Test
public void testFindInvalidCircuitBreakerBean() {
String breakerName = "testFindInvalid";
// Create a map with an invalid CircuitBreaker (non-bean) in it, and jam it in.
ConcurrentHashMap<String, CircuitBreaker> invalidMap = new ConcurrentHashMap<String, CircuitBreaker>();
invalidMap.put(breakerName, new CircuitBreaker());
ReflectionTestUtils.setField(factory, "circuitBreakerMap", invalidMap);
// Try to find it.
CircuitBreakerBean foundBreaker = factory.findCircuitBreakerBean(breakerName);
assertNull(foundBreaker);
}
@Test
public void testCreatePerformanceMonitorObjectName() throws MalformedObjectNameException, NullPointerException {
mockMBeanExporter = createMock(MBeanExporter.class);
ObjectName objectName = new ObjectName(
"org.fishwife.jrugged.spring:type=" +
"CircuitBreakerBean,name=testCreate");
mockMBeanExporter.registerManagedResource(EasyMock.<Object>anyObject(), EasyMock.eq(objectName));
replay(mockMBeanExporter);
factory.setMBeanExportOperations(mockMBeanExporter);
factory.createCircuitBreaker("testCreate", config);
EasyMock.verify(mockMBeanExporter);
}
@Test
public void testBreakerWithoutMBeanExporter() {
factory.setMBeanExportOperations(null);
CircuitBreaker createdBreaker = factory.createCircuitBreaker("testCreateWithoutMBeanExporter", config);
assertNotNull(createdBreaker);
}
@Test
public void testBreakerWithMBeanExporter() {
factory.setMBeanExportOperations(mockMBeanExporter);
CircuitBreaker createdBreaker = factory.createCircuitBreaker("testCreateWithoutMBeanExporter", config);
assertNotNull(createdBreaker);
}
@Test(expected = IllegalArgumentException.class)
public void testBreakerWithInvalidName() {
factory.setMBeanExportOperations(mockMBeanExporter);
factory.createCircuitBreaker("=\"", config);
}
//---------
// The following tests depend on org.fishwife.jrugged.spring.testonly
@Test
public void testFactoryFindsCircuitBreakers() {
factory.setPackageScanBase("org.fishwife.jrugged.spring.testonly");
factory.buildAnnotatedCircuitBreakers();
assertNotNull(factory.findCircuitBreaker("breakerA"));
assertNotNull(factory.findCircuitBreaker("breakerB"));
}
@Test
public void testWhenPackageScanNotProvidedAnnotationsNotLoaded() {
factory.buildAnnotatedCircuitBreakers();
assertNull(factory.findCircuitBreaker("breakerA"));
assertNull(factory.findCircuitBreaker("breakerB"));
}
}