TestMigratedInspection.java

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2012, Red Hat Middleware LLC, and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * 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.jboss.arquillian.warp.impl.client.transformation;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

import java.io.ByteArrayInputStream;

import javassist.ClassPool;
import javassist.CtClass;

import org.jboss.arquillian.warp.Inspection;
import org.jboss.arquillian.warp.impl.client.separation.SeparateInvocator;
import org.jboss.arquillian.warp.impl.utils.ShrinkWrapUtils;
import org.jboss.shrinkwrap.api.ShrinkWrap;
import org.jboss.shrinkwrap.api.classloader.ShrinkWrapClassLoader;
import org.jboss.shrinkwrap.api.spec.JavaArchive;
import org.junit.Test;

public class TestMigratedInspection {

    @Test
    public void testMigrate() throws Throwable {
        Inspection originalInspection = TestTransformedInspection.getAnonymousServerInspection();
        assertTrue(originalInspection.getClass().isAnonymousClass());

        TransformedInspection transformedInspection = new TransformedInspection(originalInspection);
        MigratedInspection migratedInspection = new MigratedInspection(transformedInspection);

        byte[] bytecode = migratedInspection.toBytecode();

        Class<?> migratedClass = SeparateInvocator.<MigrationTest, MigrationTestImpl>invoke(MigrationTestImpl.class,
            classPath()).process(bytecode);

        assertEquals(originalInspection.getClass().getName(), migratedClass.getName());
    }

    public interface MigrationTest {

        Class<?> process(byte[] migratedClassFile) throws Exception;
    }

    public static class MigrationTestImpl implements MigrationTest {
        public Class<?> process(byte[] migratedClassFile) throws Exception {

            ClassPool pool = ClassPool.getDefault();

            CtClass ctClazz = pool.makeClassIfNew(new ByteArrayInputStream(migratedClassFile));

            Class<?> clazz = ctClazz.toClass();

            return clazz;
        }
    }

    private static JavaArchive[] classPath() {
        JavaArchive archive = ShrinkWrap.create(JavaArchive.class).addClasses(ShrinkWrapClassLoader.class)
            .addClasses(Inspection.class, MigrationTest.class, MigrationTestImpl.class);

        JavaArchive javassistArchive = ShrinkWrapUtils.getJavaArchiveFromClass(javassist.CtClass.class);

        return new JavaArchive[] {archive, javassistArchive};
    }
}