/*
* Copyright 2002-2006 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.instrument.classloading.glassfish;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.fail;
import java.lang.instrument.ClassFileTransformer;
import java.net.URL;
import java.net.URLClassLoader;
import java.security.SecureClassLoader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import javax.persistence.spi.ClassTransformer;
import org.easymock.ArgumentsMatcher;
import org.easymock.MockControl;
import org.junit.After;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
import org.springframework.instrument.classloading.LoadTimeWeaver;
// converting away from old-style EasyMock APIs was problematic with this class
@SuppressWarnings("deprecation")
@Ignore
public class GlassFishLoadTimeWeaverTests {
private MockControl loaderCtrl;
private GlassFishClassLoaderAdapter loader;
private LoadTimeWeaver ltw;
private class DummyInstrumentableClassLoader extends SecureClassLoader {
String INSTR_CL_NAME = GlassFishClassLoaderAdapter.INSTRUMENTABLE_CLASSLOADER_GLASSFISH_V2;
public DummyInstrumentableClassLoader() {
super();
}
public DummyInstrumentableClassLoader(ClassLoader parent) {
super(parent);
}
private List<ClassTransformer> v2Transformers = new ArrayList<ClassTransformer>();
private List<ClassFileTransformer> v3Transformers = new ArrayList<ClassFileTransformer>();
public void addTransformer(ClassTransformer transformer) {
v2Transformers.add(transformer);
}
public void addTransformer(ClassFileTransformer transformer) {
v3Transformers.add(transformer);
}
public ClassLoader copy() {
return new DummyInstrumentableClassLoader();
}
@Override
public Class<?> loadClass(String name) throws ClassNotFoundException {
if (INSTR_CL_NAME.equals(name)) {
return this.getClass();
}
return getClass().getClassLoader().loadClass(name);
}
}
@Before
public void setUp() throws Exception {
ltw = new GlassFishLoadTimeWeaver(new DummyInstrumentableClassLoader());
}
@After
public void tearDown() throws Exception {
loaderCtrl.verify();
ltw = null;
}
@Test
public void testGlassFishLoadTimeWeaver() {
try {
ltw = new GlassFishLoadTimeWeaver();
fail("expected exception");
} catch (IllegalArgumentException ex) {
// expected
}
}
@Test
public void testGlassFishLoadTimeWeaverClassLoader() {
try {
ltw = new GlassFishLoadTimeWeaver(null);
fail("expected exception");
} catch (RuntimeException e) {
// expected
}
ClassLoader cl1 = new URLClassLoader(new URL[0]);
ClassLoader cl2 = new URLClassLoader(new URL[0], cl1);
ClassLoader cl3 = new DummyInstrumentableClassLoader(cl2);
ClassLoader cl4 = new URLClassLoader(new URL[0], cl3);
ltw = new GlassFishLoadTimeWeaver(cl4);
assertSame(cl3, ltw.getInstrumentableClassLoader());
cl1 = new URLClassLoader(new URL[0]);
cl2 = new URLClassLoader(new URL[0], cl1);
cl3 = new DummyInstrumentableClassLoader(cl2);
cl4 = new DummyInstrumentableClassLoader(cl3);
ltw = new GlassFishLoadTimeWeaver(cl4);
assertSame(cl4, ltw.getInstrumentableClassLoader());
}
@Test
public void testAddTransformer() {
ClassFileTransformer transformer = MockControl.createNiceControl(ClassFileTransformer.class).getMock();
loaderCtrl.reset();
loader.addTransformer(transformer);
loaderCtrl.setMatcher(new ArgumentsMatcher() {
public boolean matches(Object[] arg0, Object[] arg1) {
for (int i = 0; i < arg0.length; i++) {
if (arg0 != null && arg0.getClass() != arg1.getClass())
return false;
}
return true;
}
public String toString(Object[] arg0) {
return Arrays.toString(arg0);
}
});
loaderCtrl.replay();
ltw.addTransformer(transformer);
}
@Test
public void testGetThrowawayClassLoader() {
loaderCtrl.reset();
ClassLoader cl = new URLClassLoader(new URL[0]);
loaderCtrl.expectAndReturn(loader.getClassLoader(), cl);
loaderCtrl.replay();
assertSame(ltw.getThrowawayClassLoader(), cl);
}
}