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Uses Mockito to create mocked JavaServer Faces environment classes
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/*
 * $Id$
 * 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.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.jboss.test.faces.mockito.component;

import static org.mockito.Mockito.when;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import javax.faces.component.UIComponent;

import org.mockito.ArgumentCaptor;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;

/**
 * 
 * This class builds tree of mock components
 * 
 * 
 * @author [email protected]
 * 
 */
public class TreeBuilderImpl implements TreeBuilder {

    private final C component;

    private final List> childrenBuilders;

    private final List children;

    private final Map facets;

    protected TreeBuilderImpl(C component) {
        this.component = component;
        this.childrenBuilders = new ArrayList>();
        this.children = new ArrayList();
        this.facets = new HashMap();
        when(component.getChildren()).thenReturn(children);
        when(component.getFacets()).thenReturn(facets);
        when(component.getChildCount()).thenAnswer(new Answer() {
            public Integer answer(InvocationOnMock invocation) throws Throwable {
                return children.size();
            }
        });
        final ArgumentCaptor argument = ArgumentCaptor.forClass(String.class);
        when(component.getFacet(argument.capture())).thenAnswer(new Answer() {
            public UIComponent answer(InvocationOnMock invocation) throws Throwable {
                return facets.get(argument.getValue());
            }
        });
        when(component.getFacetCount()).thenAnswer(new Answer() {
            public Integer answer(InvocationOnMock invocation) throws Throwable {
                return facets.size();
            }
        });
        when(component.getFacetsAndChildren()).thenAnswer(new Answer>() {
            public Iterator answer(InvocationOnMock invocation) throws Throwable {
                ArrayList facetsAndChildren = new ArrayList(facets.values());
                facetsAndChildren.addAll(children);
                return facetsAndChildren.iterator();
            }
        });
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.jboss.test.faces.mock.component.TreeBuilder#setId(java.lang.String)
     */
    public TreeBuilder id(String id) {
        when(component.getId()).thenReturn(id);
        return this;
    }

    public void visitTree(TreeVisitor visitor) {
        visitor.visit(this);
        for (TreeBuilder child : childrenBuilders) {
            child.visitTree(visitor);
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.jboss.test.faces.mock.component.TreeBuilder#getComponent()
     */
    public C getComponent() {
        return this.component;
    }

    public TreeBuilder children(TreeBuilder... builders) {
        for (TreeBuilder treeBuilder : builders) {
            children.add(treeBuilder.getComponent());
            addChildBuilder(treeBuilder);
        }
        return this;
    }

    private void addChildBuilder(TreeBuilder treeBuilder) {
        childrenBuilders.add(treeBuilder);
        when(treeBuilder.getComponent().getParent()).thenReturn(component);
    }

    public TreeBuilder facets(Facet... facets) {
        for (Facet facet : facets) {
            this.facets.put(facet.getName(), facet.getBuilder().getComponent());
            addChildBuilder(facet.getBuilder());
        }
        return null;
    }
}