/*
* Copyright 2008 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 demo.org.powermock.examples.tutorial.staticmocking.impl.withoutpowermock;
import demo.org.powermock.examples.tutorial.staticmocking.impl.ServiceRegistrator;
import demo.org.powermock.examples.tutorial.staticmocking.osgi.BundleContext;
import demo.org.powermock.examples.tutorial.staticmocking.osgi.ServiceRegistration;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;
import static org.easymock.EasyMock.*;
import static org.junit.Assert.*;
/**
* Unit test for the {@link ServiceRegistrator} class.
*/
public class ServiceRegistratorTest {
private ServiceRegistratorWithoutPowerMock tested;
private BundleContext bundleContextMock;
private ServiceRegistration serviceRegistrationMock;
/**
* {@inheritDoc}
*/
@Before
public void setUp() {
tested = new ServiceRegistratorWithoutPowerMock();
bundleContextMock = createMock(BundleContext.class);
serviceRegistrationMock = createMock(ServiceRegistration.class);
}
/**
* {@inheritDoc}
*/
@After
public void tearDown() {
tested = null;
bundleContextMock = null;
serviceRegistrationMock = null;
}
/**
* Replay all mocks.
*/
protected void replayAll() {
replay(bundleContextMock);
replay(serviceRegistrationMock);
}
/**
* Verify all mocks.
*/
protected void verifyAll() {
verify(bundleContextMock);
verify(serviceRegistrationMock);
}
/**
* Test for the
* {@link ServiceRegistratorWithoutPowerMock#registerService(String, Object)}
* method.
*
* @throws Exception
* If an error occurs.
*/
@SuppressWarnings("deprecation")
@Test
public void testRegisterService() throws Exception {
final String name = "a name";
final Object object = new Object();
final long expectedId = 42;
Method generateIdMethod = ServiceRegistratorWithoutPowerMock.class.getDeclaredMethod("generateId");
tested = createMock(ServiceRegistratorWithoutPowerMock.class, new Method[] { generateIdMethod });
Field field = ServiceRegistratorWithoutPowerMock.class.getDeclaredField("bundleContext");
field.setAccessible(true);
field.set(tested, bundleContextMock);
Map<Long, ServiceRegistration> map = new HashMap<Long, ServiceRegistration>();
field = ServiceRegistratorWithoutPowerMock.class.getDeclaredField("serviceRegistrations");
field.setAccessible(true);
field.set(tested, map);
expect(bundleContextMock.registerService(name, object, null)).andReturn(serviceRegistrationMock);
expect(tested.generateId()).andReturn(expectedId);
replayAll();
replay(tested);
final long actualId = tested.registerService(name, object);
verifyAll();
verify(tested);
assertEquals(1, map.size());
final ServiceRegistration serviceRegistration = map.get(expectedId);
assertNotNull("The id " + actualId + " was not found in the mServiceRegistrations map.", serviceRegistration);
assertSame(serviceRegistration, serviceRegistrationMock);
}
/**
* Test for the
* {@link ServiceRegistratorWithoutPowerMock#unregisterService(long)}
* method.
*
* @throws Exception
* If an error occurs.
*/
@Test
public void testUnregisterService() throws Exception {
Map<Long, ServiceRegistration> map = new HashMap<Long, ServiceRegistration>();
final long id = 1L;
map.put(id, serviceRegistrationMock);
Field field = tested.getClass().getDeclaredField("serviceRegistrations");
field.setAccessible(true);
field.set(tested, map);
serviceRegistrationMock.unregister();
expectLastCall().times(1);
replayAll();
tested.unregisterService(id);
verifyAll();
assertTrue("Map should be empty", map.isEmpty());
}
/**
* Test for the
* {@link ServiceRegistratorWithoutPowerMock#unregisterService(long)} method
* when the ID doesn't exist.
*
* @throws Exception
* If an error occurs.
*/
@Test
public void testUnregisterService_idDoesntExist() throws Exception {
Map<Long, ServiceRegistration> map = new HashMap<Long, ServiceRegistration>();
final long id = 1L;
Field field = tested.getClass().getDeclaredField("serviceRegistrations");
field.setAccessible(true);
field.set(tested, map);
replayAll();
try {
tested.unregisterService(id);
fail("Should throw IllegalStateException");
} catch (IllegalStateException e) {
assertEquals("Registration with id " + id + " has already been removed or has never been registered", e.getMessage());
}
verifyAll();
assertTrue("Map should be empty", map.isEmpty());
}
}