spi-fly/spi-fly-core/src/test/java/org/apache/aries/spifly/ProviderBundleTrackerCustomizerTest.java - aries - Git at Google

 /**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you 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.apache.aries.spifly;

 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertSame;

 import java.net.URL;
 import java.net.URLClassLoader;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Dictionary;
 import java.util.Hashtable;
 import java.util.List;

 import org.easymock.EasyMock;
 import org.junit.Test;
 import org.osgi.framework.Bundle;
 import org.osgi.framework.BundleContext;
 import org.osgi.framework.Constants;
 import org.osgi.framework.ServiceFactory;
 import org.osgi.framework.ServiceRegistration;

 public class ProviderBundleTrackerCustomizerTest {

     private BaseActivator activator = new BaseActivator() {
         @Override
         public void start(BundleContext context) throws Exception {}
     };

     @Test
     public void testAddingRemovedBundle() throws Exception {
         Bundle mediatorBundle = EasyMock.createMock(Bundle.class);
         EasyMock.expect(mediatorBundle.getBundleId()).andReturn(42l).anyTimes();
         EasyMock.replay(mediatorBundle);

         ProviderBundleTrackerCustomizer customizer = new ProviderBundleTrackerCustomizer(activator, mediatorBundle);

         ServiceRegistration sreg = EasyMock.createMock(ServiceRegistration.class);
         sreg.unregister();
         EasyMock.expectLastCall();
         EasyMock.replay(sreg);

         BundleContext implBC = mockSPIBundleContext(sreg);
         Bundle implBundle = mockSPIBundle(implBC);

         assertEquals("Precondition", 0, activator.findProviderBundles("org.apache.aries.mytest.MySPI").size());
         // Call addingBundle();
         List<ServiceRegistration> registrations = customizer.addingBundle(implBundle, null);
         Collection<Bundle> bundles = activator.findProviderBundles("org.apache.aries.mytest.MySPI");
         assertEquals(1, bundles.size());
         assertSame(implBundle, bundles.iterator().next());

         // The bc.registerService() call should now have been made
         EasyMock.verify(implBC);

         // Call removedBundle();
         customizer.removedBundle(implBundle, null, registrations);
         // sreg.unregister() should have been called.
         EasyMock.verify(sreg);
     }

     @Test
     public void testAddingBundleSPIBundle() throws Exception {
         BundleContext implBC = mockSPIBundleContext(EasyMock.createNiceMock(ServiceRegistration.class));
         Bundle spiBundle = mockSPIBundle(implBC);

         ProviderBundleTrackerCustomizer customizer = new ProviderBundleTrackerCustomizer(activator, spiBundle);
         assertNull("The SpiFly bundle itself should be ignored", customizer.addingBundle(spiBundle, null));
     }

     @Test
     public void testAddingNonOptInBundle() throws Exception {
         BundleContext implBC = mockSPIBundleContext(EasyMock.createNiceMock(ServiceRegistration.class));
         Bundle implBundle = mockSPIBundle(implBC, null);

         ProviderBundleTrackerCustomizer customizer = new ProviderBundleTrackerCustomizer(activator, null);
         assertNull("Bundle doesn't opt-in so should be ignored", customizer.addingBundle(implBundle, null));
     }

     @Test
     @SuppressWarnings("unchecked")
     public void testAddingBundleWithBundleClassPath() throws Exception {
         Bundle mediatorBundle = EasyMock.createMock(Bundle.class);
         EasyMock.expect(mediatorBundle.getBundleId()).andReturn(42l).anyTimes();
         EasyMock.replay(mediatorBundle);

         ProviderBundleTrackerCustomizer customizer = new ProviderBundleTrackerCustomizer(activator, mediatorBundle);

         BundleContext implBC = EasyMock.createMock(BundleContext.class);
         EasyMock.<Object>expect(implBC.registerService(
                 EasyMock.eq("org.apache.aries.mytest.MySPI"),
                 EasyMock.isA(ServiceFactory.class),
                 (Dictionary<String,?>) EasyMock.anyObject())).andReturn(EasyMock.createNiceMock(ServiceRegistration.class)).times(3);
         EasyMock.replay(implBC);


         Bundle implBundle = EasyMock.createNiceMock(Bundle.class);
         EasyMock.expect(implBundle.getBundleContext()).andReturn(implBC).anyTimes();

         Dictionary<String, String> headers = new Hashtable<String, String>();
         headers.put(SpiFlyConstants.SPI_PROVIDER_HEADER, "*");
         headers.put(Constants.BUNDLE_CLASSPATH, ".,non-jar.jar,embedded.jar,embedded2.jar");
         EasyMock.expect(implBundle.getHeaders()).andReturn(headers).anyTimes();

         URL embeddedJar = getClass().getResource("/embedded.jar");
         assertNotNull("precondition", embeddedJar);
         EasyMock.expect(implBundle.getResource("embedded.jar")).andReturn(embeddedJar).anyTimes();
         URL embedded2Jar = getClass().getResource("/embedded2.jar");
         assertNotNull("precondition", embedded2Jar);
         EasyMock.expect(implBundle.getResource("embedded2.jar")).andReturn(embedded2Jar).anyTimes();
         URL dir = new URL("jar:" + embeddedJar + "!/META-INF/services");
         assertNotNull("precondition", dir);
         EasyMock.expect(implBundle.getResource("/META-INF/services")).andReturn(dir).anyTimes();
         EasyMock.expect(implBundle.findEntries((String) EasyMock.anyObject(), (String) EasyMock.anyObject(), EasyMock.anyBoolean())).
             andReturn(null).anyTimes();

         ClassLoader cl = new URLClassLoader(new URL [] {embeddedJar}, getClass().getClassLoader());
         Class<?> clsA = cl.loadClass("org.apache.aries.spifly.impl2.MySPIImpl2a");
         EasyMock.<Object>expect(implBundle.loadClass("org.apache.aries.spifly.impl2.MySPIImpl2a")).andReturn(clsA).anyTimes();
         Class<?> clsB = cl.loadClass("org.apache.aries.spifly.impl2.MySPIImpl2b");
         EasyMock.<Object>expect(implBundle.loadClass("org.apache.aries.spifly.impl2.MySPIImpl2b")).andReturn(clsB).anyTimes();
         ClassLoader cl2 = new URLClassLoader(new URL [] {embedded2Jar}, getClass().getClassLoader());
         Class<?> clsC = cl2.loadClass("org.apache.aries.spifly.impl3.MySPIImpl3");
         EasyMock.<Object>expect(implBundle.loadClass("org.apache.aries.spifly.impl3.MySPIImpl3")).andReturn(clsC).anyTimes();
         EasyMock.replay(implBundle);

         assertEquals("Precondition", 0, activator.findProviderBundles("org.apache.aries.mytest.MySPI").size());
         // Call addingBundle();
         List<ServiceRegistration> registrations = customizer.addingBundle(implBundle, null);
         Collection<Bundle> bundles = activator.findProviderBundles("org.apache.aries.mytest.MySPI");
         assertEquals(1, bundles.size());
         assertSame(implBundle, bundles.iterator().next());

         // The bc.registerService() call should now have been made
         EasyMock.verify(implBC);
     }

     @Test
     public void testMultipleProviderServices() throws Exception {
         BundleContext implBC = mockSPIBundleContext(EasyMock.createNiceMock(ServiceRegistration.class));
         Bundle implBundle = mockMultiSPIBundle(implBC);
         Bundle spiBundle = EasyMock.createNiceMock(Bundle.class);
         EasyMock.expect(spiBundle.getBundleId()).andReturn(25l).anyTimes();
         EasyMock.replay(spiBundle);

         ProviderBundleTrackerCustomizer customizer = new ProviderBundleTrackerCustomizer(activator, spiBundle);
         assertEquals(2, customizer.addingBundle(implBundle, null).size());
     }

     @SuppressWarnings("unchecked")
     private BundleContext mockSPIBundleContext(ServiceRegistration sreg) {
         BundleContext implBC = EasyMock.createMock(BundleContext.class);
         EasyMock.<Object>expect(implBC.registerService(
                 EasyMock.anyString(),
                 EasyMock.isA(ServiceFactory.class),
                 (Dictionary<String,?>) EasyMock.anyObject())).andReturn(sreg).anyTimes();
         EasyMock.replay(implBC);
         return implBC;
     }

     private Bundle mockSPIBundle(BundleContext implBC) throws ClassNotFoundException {
         return mockSPIBundle(implBC, "*");
     }

     private Bundle mockSPIBundle(BundleContext implBC, String spiProviderHeader) throws ClassNotFoundException {
         Bundle implBundle = EasyMock.createNiceMock(Bundle.class);
         EasyMock.expect(implBundle.getBundleContext()).andReturn(implBC).anyTimes();

         Dictionary<String, String> headers = new Hashtable<String, String>();
         if (spiProviderHeader != null)
             headers.put(SpiFlyConstants.SPI_PROVIDER_HEADER, spiProviderHeader);
         EasyMock.expect(implBundle.getHeaders()).andReturn(headers).anyTimes();

         // List the resources found at META-INF/services in the test bundle
         URL dir = getClass().getResource("impl1/META-INF/services");
         assertNotNull("precondition", dir);
         EasyMock.expect(implBundle.getResource("/META-INF/services")).andReturn(dir).anyTimes();
         URL res = getClass().getResource("impl1/META-INF/services/org.apache.aries.mytest.MySPI");
         assertNotNull("precondition", res);
         EasyMock.expect(implBundle.findEntries("META-INF/services", "*", false)).andReturn(
                 Collections.enumeration(Collections.singleton(res))).anyTimes();
         Class<?> cls = getClass().getClassLoader().loadClass("org.apache.aries.spifly.impl1.MySPIImpl1");
         EasyMock.<Object>expect(implBundle.loadClass("org.apache.aries.spifly.impl1.MySPIImpl1")).andReturn(cls).anyTimes();
         EasyMock.replay(implBundle);
         return implBundle;
     }

     private Bundle mockMultiSPIBundle(BundleContext implBC) throws ClassNotFoundException {
         Bundle implBundle = EasyMock.createNiceMock(Bundle.class);
         EasyMock.expect(implBundle.getBundleContext()).andReturn(implBC).anyTimes();

         Dictionary<String, String> headers = new Hashtable<String, String>();
         headers.put(
                 Constants.REQUIRE_CAPABILITY,
                 "osgi.extender;filter:='(osgi.extender=osgi.serviceloader.registrar)'"
         );
         headers.put(
             Constants.PROVIDE_CAPABILITY,
             "osgi.serviceloader;osgi.serviceloader='org.apache.aries.mytest.MySPI2';register:='org.apache.aries.spifly.impl4.MySPIImpl4b';foo='bbb'," +
             "osgi.serviceloader;osgi.serviceloader='org.apache.aries.mytest.MySPI2';register:='org.apache.aries.spifly.impl4.MySPIImpl4c';foo='ccc'"
         );
         EasyMock.expect(implBundle.getHeaders()).andReturn(headers).anyTimes();

         // List the resources found at META-INF/services in the test bundle
         URL dir = getClass().getResource("impl4/META-INF/services");
         assertNotNull("precondition", dir);
         EasyMock.expect(implBundle.getResource("/META-INF/services")).andReturn(dir).anyTimes();
         URL resA = getClass().getResource("impl4/META-INF/services/org.apache.aries.mytest.MySPI");
         assertNotNull("precondition", resA);
         URL resB = getClass().getResource("impl4/META-INF/services/org.apache.aries.mytest.MySPI2");
         assertNotNull("precondition", resB);
         EasyMock.expect(implBundle.findEntries("META-INF/services", "*", false)).andReturn(
                 Collections.enumeration(Arrays.asList(resA, resB))).anyTimes();
         Class<?> cls = getClass().getClassLoader().loadClass("org.apache.aries.spifly.impl4.MySPIImpl4b");
         EasyMock.<Object>expect(implBundle.loadClass("org.apache.aries.spifly.impl4.MySPIImpl4b")).andReturn(cls).anyTimes();
         cls = getClass().getClassLoader().loadClass("org.apache.aries.spifly.impl4.MySPIImpl4c");
         EasyMock.<Object>expect(implBundle.loadClass("org.apache.aries.spifly.impl4.MySPIImpl4c")).andReturn(cls).anyTimes();
         EasyMock.replay(implBundle);
         return implBundle;
     }
 }
	/**
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you 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.apache.aries.spifly;

	import static org.junit.Assert.assertEquals;
	import static org.junit.Assert.assertNotNull;
	import static org.junit.Assert.assertNull;
	import static org.junit.Assert.assertSame;

	import java.net.URL;
	import java.net.URLClassLoader;
	import java.util.Arrays;
	import java.util.Collection;
	import java.util.Collections;
	import java.util.Dictionary;
	import java.util.Hashtable;
	import java.util.List;

	import org.easymock.EasyMock;
	import org.junit.Test;
	import org.osgi.framework.Bundle;
	import org.osgi.framework.BundleContext;
	import org.osgi.framework.Constants;
	import org.osgi.framework.ServiceFactory;
	import org.osgi.framework.ServiceRegistration;

	public class ProviderBundleTrackerCustomizerTest {

	private BaseActivator activator = new BaseActivator() {
	@Override
	public void start(BundleContext context) throws Exception {}
	};

	@Test
	public void testAddingRemovedBundle() throws Exception {
	Bundle mediatorBundle = EasyMock.createMock(Bundle.class);
	EasyMock.expect(mediatorBundle.getBundleId()).andReturn(42l).anyTimes();
	EasyMock.replay(mediatorBundle);

	ProviderBundleTrackerCustomizer customizer = new ProviderBundleTrackerCustomizer(activator, mediatorBundle);

	ServiceRegistration sreg = EasyMock.createMock(ServiceRegistration.class);
	sreg.unregister();
	EasyMock.expectLastCall();
	EasyMock.replay(sreg);

	BundleContext implBC = mockSPIBundleContext(sreg);
	Bundle implBundle = mockSPIBundle(implBC);

	assertEquals("Precondition", 0, activator.findProviderBundles("org.apache.aries.mytest.MySPI").size());
	// Call addingBundle();
	List<ServiceRegistration> registrations = customizer.addingBundle(implBundle, null);
	Collection<Bundle> bundles = activator.findProviderBundles("org.apache.aries.mytest.MySPI");
	assertEquals(1, bundles.size());
	assertSame(implBundle, bundles.iterator().next());

	// The bc.registerService() call should now have been made
	EasyMock.verify(implBC);

	// Call removedBundle();
	customizer.removedBundle(implBundle, null, registrations);
	// sreg.unregister() should have been called.
	EasyMock.verify(sreg);
	}

	@Test
	public void testAddingBundleSPIBundle() throws Exception {
	BundleContext implBC = mockSPIBundleContext(EasyMock.createNiceMock(ServiceRegistration.class));
	Bundle spiBundle = mockSPIBundle(implBC);

	ProviderBundleTrackerCustomizer customizer = new ProviderBundleTrackerCustomizer(activator, spiBundle);
	assertNull("The SpiFly bundle itself should be ignored", customizer.addingBundle(spiBundle, null));
	}

	@Test
	public void testAddingNonOptInBundle() throws Exception {
	BundleContext implBC = mockSPIBundleContext(EasyMock.createNiceMock(ServiceRegistration.class));
	Bundle implBundle = mockSPIBundle(implBC, null);

	ProviderBundleTrackerCustomizer customizer = new ProviderBundleTrackerCustomizer(activator, null);
	assertNull("Bundle doesn't opt-in so should be ignored", customizer.addingBundle(implBundle, null));
	}

	@Test
	@SuppressWarnings("unchecked")
	public void testAddingBundleWithBundleClassPath() throws Exception {
	Bundle mediatorBundle = EasyMock.createMock(Bundle.class);
	EasyMock.expect(mediatorBundle.getBundleId()).andReturn(42l).anyTimes();
	EasyMock.replay(mediatorBundle);

	ProviderBundleTrackerCustomizer customizer = new ProviderBundleTrackerCustomizer(activator, mediatorBundle);

	BundleContext implBC = EasyMock.createMock(BundleContext.class);
	EasyMock.<Object>expect(implBC.registerService(
	EasyMock.eq("org.apache.aries.mytest.MySPI"),
	EasyMock.isA(ServiceFactory.class),
	(Dictionary<String,?>) EasyMock.anyObject())).andReturn(EasyMock.createNiceMock(ServiceRegistration.class)).times(3);
	EasyMock.replay(implBC);


	Bundle implBundle = EasyMock.createNiceMock(Bundle.class);
	EasyMock.expect(implBundle.getBundleContext()).andReturn(implBC).anyTimes();

	Dictionary<String, String> headers = new Hashtable<String, String>();
	headers.put(SpiFlyConstants.SPI_PROVIDER_HEADER, "*");
	headers.put(Constants.BUNDLE_CLASSPATH, ".,non-jar.jar,embedded.jar,embedded2.jar");
	EasyMock.expect(implBundle.getHeaders()).andReturn(headers).anyTimes();

	URL embeddedJar = getClass().getResource("/embedded.jar");
	assertNotNull("precondition", embeddedJar);
	EasyMock.expect(implBundle.getResource("embedded.jar")).andReturn(embeddedJar).anyTimes();
	URL embedded2Jar = getClass().getResource("/embedded2.jar");
	assertNotNull("precondition", embedded2Jar);
	EasyMock.expect(implBundle.getResource("embedded2.jar")).andReturn(embedded2Jar).anyTimes();
	URL dir = new URL("jar:" + embeddedJar + "!/META-INF/services");
	assertNotNull("precondition", dir);
	EasyMock.expect(implBundle.getResource("/META-INF/services")).andReturn(dir).anyTimes();
	EasyMock.expect(implBundle.findEntries((String) EasyMock.anyObject(), (String) EasyMock.anyObject(), EasyMock.anyBoolean())).
	andReturn(null).anyTimes();

	ClassLoader cl = new URLClassLoader(new URL [] {embeddedJar}, getClass().getClassLoader());
	Class<?> clsA = cl.loadClass("org.apache.aries.spifly.impl2.MySPIImpl2a");
	EasyMock.<Object>expect(implBundle.loadClass("org.apache.aries.spifly.impl2.MySPIImpl2a")).andReturn(clsA).anyTimes();
	Class<?> clsB = cl.loadClass("org.apache.aries.spifly.impl2.MySPIImpl2b");
	EasyMock.<Object>expect(implBundle.loadClass("org.apache.aries.spifly.impl2.MySPIImpl2b")).andReturn(clsB).anyTimes();
	ClassLoader cl2 = new URLClassLoader(new URL [] {embedded2Jar}, getClass().getClassLoader());
	Class<?> clsC = cl2.loadClass("org.apache.aries.spifly.impl3.MySPIImpl3");
	EasyMock.<Object>expect(implBundle.loadClass("org.apache.aries.spifly.impl3.MySPIImpl3")).andReturn(clsC).anyTimes();
	EasyMock.replay(implBundle);

	assertEquals("Precondition", 0, activator.findProviderBundles("org.apache.aries.mytest.MySPI").size());
	// Call addingBundle();
	List<ServiceRegistration> registrations = customizer.addingBundle(implBundle, null);
	Collection<Bundle> bundles = activator.findProviderBundles("org.apache.aries.mytest.MySPI");
	assertEquals(1, bundles.size());
	assertSame(implBundle, bundles.iterator().next());

	// The bc.registerService() call should now have been made
	EasyMock.verify(implBC);
	}

	@Test
	public void testMultipleProviderServices() throws Exception {
	BundleContext implBC = mockSPIBundleContext(EasyMock.createNiceMock(ServiceRegistration.class));
	Bundle implBundle = mockMultiSPIBundle(implBC);
	Bundle spiBundle = EasyMock.createNiceMock(Bundle.class);
	EasyMock.expect(spiBundle.getBundleId()).andReturn(25l).anyTimes();
	EasyMock.replay(spiBundle);

	ProviderBundleTrackerCustomizer customizer = new ProviderBundleTrackerCustomizer(activator, spiBundle);
	assertEquals(2, customizer.addingBundle(implBundle, null).size());
	}

	@SuppressWarnings("unchecked")
	private BundleContext mockSPIBundleContext(ServiceRegistration sreg) {
	BundleContext implBC = EasyMock.createMock(BundleContext.class);
	EasyMock.<Object>expect(implBC.registerService(
	EasyMock.anyString(),
	EasyMock.isA(ServiceFactory.class),
	(Dictionary<String,?>) EasyMock.anyObject())).andReturn(sreg).anyTimes();
	EasyMock.replay(implBC);
	return implBC;
	}

	private Bundle mockSPIBundle(BundleContext implBC) throws ClassNotFoundException {
	return mockSPIBundle(implBC, "*");
	}

	private Bundle mockSPIBundle(BundleContext implBC, String spiProviderHeader) throws ClassNotFoundException {
	Bundle implBundle = EasyMock.createNiceMock(Bundle.class);
	EasyMock.expect(implBundle.getBundleContext()).andReturn(implBC).anyTimes();

	Dictionary<String, String> headers = new Hashtable<String, String>();
	if (spiProviderHeader != null)
	headers.put(SpiFlyConstants.SPI_PROVIDER_HEADER, spiProviderHeader);
	EasyMock.expect(implBundle.getHeaders()).andReturn(headers).anyTimes();

	// List the resources found at META-INF/services in the test bundle
	URL dir = getClass().getResource("impl1/META-INF/services");
	assertNotNull("precondition", dir);
	EasyMock.expect(implBundle.getResource("/META-INF/services")).andReturn(dir).anyTimes();
	URL res = getClass().getResource("impl1/META-INF/services/org.apache.aries.mytest.MySPI");
	assertNotNull("precondition", res);
	EasyMock.expect(implBundle.findEntries("META-INF/services", "*", false)).andReturn(
	Collections.enumeration(Collections.singleton(res))).anyTimes();
	Class<?> cls = getClass().getClassLoader().loadClass("org.apache.aries.spifly.impl1.MySPIImpl1");
	EasyMock.<Object>expect(implBundle.loadClass("org.apache.aries.spifly.impl1.MySPIImpl1")).andReturn(cls).anyTimes();
	EasyMock.replay(implBundle);
	return implBundle;
	}

	private Bundle mockMultiSPIBundle(BundleContext implBC) throws ClassNotFoundException {
	Bundle implBundle = EasyMock.createNiceMock(Bundle.class);
	EasyMock.expect(implBundle.getBundleContext()).andReturn(implBC).anyTimes();

	Dictionary<String, String> headers = new Hashtable<String, String>();
	headers.put(
	Constants.REQUIRE_CAPABILITY,
	"osgi.extender;filter:='(osgi.extender=osgi.serviceloader.registrar)'"
	);
	headers.put(
	Constants.PROVIDE_CAPABILITY,
	"osgi.serviceloader;osgi.serviceloader='org.apache.aries.mytest.MySPI2';register:='org.apache.aries.spifly.impl4.MySPIImpl4b';foo='bbb'," +
	"osgi.serviceloader;osgi.serviceloader='org.apache.aries.mytest.MySPI2';register:='org.apache.aries.spifly.impl4.MySPIImpl4c';foo='ccc'"
	);
	EasyMock.expect(implBundle.getHeaders()).andReturn(headers).anyTimes();

	// List the resources found at META-INF/services in the test bundle
	URL dir = getClass().getResource("impl4/META-INF/services");
	assertNotNull("precondition", dir);
	EasyMock.expect(implBundle.getResource("/META-INF/services")).andReturn(dir).anyTimes();
	URL resA = getClass().getResource("impl4/META-INF/services/org.apache.aries.mytest.MySPI");
	assertNotNull("precondition", resA);
	URL resB = getClass().getResource("impl4/META-INF/services/org.apache.aries.mytest.MySPI2");
	assertNotNull("precondition", resB);
	EasyMock.expect(implBundle.findEntries("META-INF/services", "*", false)).andReturn(
	Collections.enumeration(Arrays.asList(resA, resB))).anyTimes();
	Class<?> cls = getClass().getClassLoader().loadClass("org.apache.aries.spifly.impl4.MySPIImpl4b");
	EasyMock.<Object>expect(implBundle.loadClass("org.apache.aries.spifly.impl4.MySPIImpl4b")).andReturn(cls).anyTimes();
	cls = getClass().getClassLoader().loadClass("org.apache.aries.spifly.impl4.MySPIImpl4c");
	EasyMock.<Object>expect(implBundle.loadClass("org.apache.aries.spifly.impl4.MySPIImpl4c")).andReturn(cls).anyTimes();
	EasyMock.replay(implBundle);
	return implBundle;
	}
	}