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 * JBoss, Home of Professional Open Source
 * Copyright 2010, Red Hat, Inc., 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.weld.tests.managed.newBean;

import static org.junit.Assert.assertEquals;

import java.util.List;
import java.util.Set;

import javax.enterprise.inject.New;
import javax.enterprise.inject.spi.AnnotatedConstructor;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.BeanManager;
import javax.enterprise.inject.spi.InjectionPoint;
import javax.enterprise.inject.spi.InjectionTarget;
import javax.inject.Inject;

import org.jboss.arquillian.container.test.api.Deployment;
import org.jboss.arquillian.junit.Arquillian;
import org.jboss.shrinkwrap.api.Archive;
import org.jboss.shrinkwrap.api.BeanArchive;
import org.jboss.shrinkwrap.api.ShrinkWrap;
import org.jboss.weld.bean.AbstractClassBean;
import org.jboss.weld.bean.ManagedBean;
import org.jboss.weld.bean.NewManagedBean;
import org.jboss.weld.injection.MethodInjectionPoint;
import org.jboss.weld.injection.producer.BasicInjectionTarget;
import org.jboss.weld.injection.producer.DefaultInstantiator;
import org.jboss.weld.injection.producer.Instantiator;
import org.jboss.weld.test.util.Utils;
import org.jboss.weld.util.reflection.Reflections;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;

@RunWith(Arquillian.class)
public class NewSimpleBeanTest {
    @Deployment
    public static Archive<?> deploy() {
        return ShrinkWrap.create(BeanArchive.class, Utils.getDeploymentNameAsHash(NewSimpleBeanTest.class))
                .addPackage(NewSimpleBeanTest.class.getPackage());
    }

    private ManagedBean<WrappedSimpleBean> wrappedSimpleBean;
    private NewManagedBean<WrappedSimpleBean> newSimpleBean;

    @Inject
    private BeanManager beanManager;

    public void initNewBean() {

        Assert.assertEquals(1, beanManager.getBeans(WrappedSimpleBean.class).size());
        Assert.assertTrue(beanManager.getBeans(WrappedSimpleBean.class).iterator().next() instanceof ManagedBean);
        wrappedSimpleBean = (ManagedBean<WrappedSimpleBean>) beanManager.getBeans(WrappedSimpleBean.class).iterator().next();

        Assert.assertEquals(1, beanManager.getBeans(WrappedSimpleBean.class, New.Literal.INSTANCE).size());
        Assert.assertTrue(beanManager.getBeans(WrappedSimpleBean.class, New.Literal.INSTANCE).iterator().next() instanceof NewManagedBean);
        newSimpleBean = (NewManagedBean<WrappedSimpleBean>) beanManager.getBeans(WrappedSimpleBean.class, New.Literal.INSTANCE).iterator().next();
    }

    // groups = { "new" }
    @Test
    public void testNewBeanHasImplementationClassOfInjectionPointType() {
        initNewBean();
        Assert.assertEquals(WrappedSimpleBean.class, newSimpleBean.getType());
    }

    // groups = { "new" }
    @Test
    public void testNewBeanIsSimpleWebBeanIfParameterTypeIsSimpleWebBean() {
        initNewBean();
        Assert.assertEquals(wrappedSimpleBean.getType(), newSimpleBean.getType());
    }

    // groups = { "new" }
    @Test
    public void testNewBeanHasSameConstructorAsWrappedBean() {
        initNewBean();
        assertEquals(getConstructor(wrappedSimpleBean), getConstructor(newSimpleBean));
    }

    // groups = { "new" }
    @Test
    public void testNewBeanHasSameInitializerMethodsAsWrappedBean() {
        initNewBean();
        Assert.assertEquals(getInitializerMethods(wrappedSimpleBean), getInitializerMethods(newSimpleBean));
    }

    private List<Set<MethodInjectionPoint<?, ?>>> getInitializerMethods(Bean<?> bean) {
        if (bean instanceof AbstractClassBean<?>) {
            InjectionTarget<?> injectionTarget = Reflections.<AbstractClassBean<?>>cast(bean).getProducer();
            if (injectionTarget instanceof BasicInjectionTarget<?>) {
                return Reflections.<BasicInjectionTarget<?>>cast(injectionTarget).getInjector().getInitializerMethods();
            }
        }
        throw new IllegalArgumentException(bean.toString());
    }

    private AnnotatedConstructor<?> getConstructor(AbstractClassBean<?> bean) {
        InjectionTarget<?> target = bean.getProducer();
        if (target instanceof BasicInjectionTarget<?>) {
            BasicInjectionTarget<?> weldTarget = (BasicInjectionTarget<?>) target;
            Instantiator<?> instantiator = weldTarget.getInstantiator();
            if (instantiator instanceof DefaultInstantiator<?>) {
                return Reflections.<DefaultInstantiator<?>>cast(instantiator).getConstructorInjectionPoint().getAnnotated();
            }
        }
        throw new IllegalArgumentException(bean.toString());
    }

    // groups = { "new" }
    @Test
    public void testNewBeanHasSameInjectedFieldsAsWrappedBean() {
        initNewBean();
        Set<InjectionPoint> wrappedBeanInjectionPoints = wrappedSimpleBean.getInjectionPoints();
        Set<InjectionPoint> newBeanInjectionPoints = newSimpleBean.getInjectionPoints();
        Assert.assertEquals(wrappedBeanInjectionPoints, newBeanInjectionPoints);
    }

}