/*
* 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.sling.commons.classloader.impl;
import org.junit.Assert;
import org.jmock.Expectations;
import org.jmock.Mockery;
import org.jmock.Sequence;
import org.jmock.integration.junit4.JUnit4Mockery;
import org.junit.Test;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceListener;
import org.osgi.service.packageadmin.ExportedPackage;
import org.osgi.service.packageadmin.PackageAdmin;
/**
* Simple test for the dynamic class loader.
*/
public class ClassLoadingTest {
protected Mockery context;
public ClassLoadingTest() {
this.context = new JUnit4Mockery();
}
/**
* This method tests the dynamic class loading through the package admin.
* The returned class changes from map to array list.
*/
@Test public void testLoading() throws Exception {
final Sequence sequence = this.context.sequence("load-sequence");
final BundleContext bundleContext = this.context.mock(BundleContext.class);
final PackageAdmin packageAdmin = this.context.mock(PackageAdmin.class);
final ExportedPackage ep = this.context.mock(ExportedPackage.class);
final Bundle bundle = this.context.mock(Bundle.class);
this.context.checking(new Expectations() {{
allowing(bundleContext).createFilter(with(any(String.class)));
will(returnValue(null));
allowing(bundleContext).addServiceListener(with(any(ServiceListener.class)), with(any(String.class)));
allowing(bundleContext).removeServiceListener(with(any(ServiceListener.class)));
allowing(bundleContext).getServiceReferences(with(any(String.class)), with(any(String.class)));
will(returnValue(null));
allowing(packageAdmin).getExportedPackage("org.apache.sling.test");
will(returnValue(ep));
allowing(ep).getExportingBundle();
will(returnValue(bundle));
allowing(ep).isRemovalPending();
will(returnValue(false));
allowing(bundle).getBundleId();
will(returnValue(2L));
allowing(bundle).getState();
will(returnValue(Bundle.ACTIVE));
one(bundle).loadClass("org.apache.sling.test.A"); inSequence(sequence);
will(returnValue(java.util.Map.class));
one(bundle).loadClass("org.apache.sling.test.A"); inSequence(sequence);
will(returnValue(java.util.Map.class));
one(bundle).loadClass("org.apache.sling.test.A"); inSequence(sequence);
will(returnValue(java.util.ArrayList.class));
}});
DynamicClassLoaderManagerImpl manager = new DynamicClassLoaderManagerImpl(bundleContext, packageAdmin, null,
new DynamicClassLoaderManagerFactory(bundleContext, packageAdmin));
final ClassLoader cl = manager.getDynamicClassLoader();
final Class<?> c1 = cl.loadClass("org.apache.sling.test.A");
Assert.assertEquals("java.util.Map", c1.getName());
final Class<?> c2 = cl.loadClass("org.apache.sling.test.A");
Assert.assertEquals("java.util.Map", c2.getName());
// as we cache the result, we still get the map!
final Class<?> c3 = cl.loadClass("org.apache.sling.test.A");
Assert.assertEquals("java.util.Map", c3.getName());
}
}