/*
    * 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.myfaces.custom.picklist;
  
  import java.io.IOException;
  import java.io.StringWriter;
  import java.util.Collection;
  
  import javax.el.ELContext;
  import javax.el.ValueExpression;
  import javax.faces.component.UISelectItem;
  
  import org.apache.myfaces.renderkit.html.ext.MockBean;
  import org.apache.myfaces.renderkit.html.ext.MockIntegerConverter;
  import org.apache.myfaces.test.base.AbstractJsfTestCase;
  import org.apache.myfaces.test.el.MockValueExpression;
  import org.apache.myfaces.test.mock.MockResponseWriter;
  
  /**
   * Test cases for HtmlPicklistRenderer.
   * 
   * @author Jakob Korherr (latest modification by $Author: lu4242 $)
   * @version $Revision: 963899 $ $Date: 2010-07-13 17:57:38 -0500 (Tue, 13 Jul 2010) $
   */
  public class HtmlPicklistRendererValueTest extends AbstractJsfTestCase
  {
  
      private HtmlPicklistRenderer _renderer;
      private MockResponseWriter _writer;
      private StringWriter _stringWriter;
      
      public HtmlPicklistRendererValueTest(String name)
      {
          super(name);
      }
      
      @Override
      protected void setUp() throws Exception
      {
          super.setUp();
          
          _renderer = new HtmlPicklistRenderer();
          _stringWriter = new StringWriter();
          _writer = new MockResponseWriter(_stringWriter, "text/html", "utf-8");
          
          facesContext.setResponseWriter(_writer);
      }
  
      @Override
      protected void tearDown() throws Exception
      {
          _renderer = null;
          _stringWriter = null;
          _writer = null;
          
          super.tearDown();
      }
  
      @SuppressWarnings("unchecked")
      public void testValueTypeRender() throws IOException
      {
          MockBean bean = new MockBean();
          externalContext.getApplicationMap().put("bean", bean);
          ValueExpression beanVE = new MockValueExpression("#{bean.values}", Object.class);
          
          // create UISelectMany component
          HtmlSelectManyPicklist selectMany = new HtmlSelectManyPicklist();
          selectMany.setValueExpression("value", beanVE);
          selectMany.setValueType(Integer.class.getName());
          
          // workaround for NPE in MockResponseWriter
          selectMany.setAddButtonStyle("style");
          selectMany.setAddButtonStyleClass("styleClass");
          selectMany.setAddAllButtonStyle("style");
          selectMany.setAddAllButtonStyleClass("styleClass");
          selectMany.setRemoveButtonStyle("style");
          selectMany.setRemoveButtonStyleClass("styleClass");
          selectMany.setRemoveAllButtonStyle("style");
          selectMany.setRemoveAllButtonStyleClass("styleClass");
          
          // create the select item
          UISelectItem item = new UISelectItem();
          item.setItemValue("1");
         selectMany.getChildren().add(item);
         
         // register the converter
         application.addConverter(Integer.class, MockIntegerConverter.class.getName());
         
         // Render the component (only encodeEnd is used in this renderer)
         _renderer.encodeEnd(facesContext, selectMany);
         final String output = _stringWriter.toString();
         
         // we expect a rendered value of 11, because the Converter adds 10 to
         // the given value in getAsString(). Thus we verify that the converter was called.
         assertTrue(output.contains("value=\"11\""));
     }
     
     @SuppressWarnings({ "unchecked", "serial" })
     public void testValueTypeSubmit() throws IOException
     {
         MockBean bean = new MockBean();
         externalContext.getApplicationMap().put("bean", bean);
         ValueExpression beanVE = new MockValueExpression("#{bean.values}", Object.class)
         {
 
             @Override
             public Class getType(ELContext context)
             {
                 // to simulate the behavior when a bean property has a null value,
                 // but the getter has a return value of Collection
                 return Collection.class;
             }
               
         };
         
         // create UISelectMany component
         HtmlSelectManyPicklist selectMany = new HtmlSelectManyPicklist();
         selectMany.setValueExpression("value", beanVE);
         selectMany.setValueType(Integer.class.getName());
         
         // create the select item
         UISelectItem item = new UISelectItem();
         item.setItemValue("1");
         selectMany.getChildren().add(item);
         
         // get the converted value
         Object convertedValue = _renderer.getConvertedValue(facesContext, selectMany, new String[] {"1"});
         
         // the value must be a Collection
         assertTrue(convertedValue instanceof Collection);
         
         // the first element of the Collection must be the _Integer_ 1
         // (without the valueType attribute it would be the String "1")
         assertEquals(1, ((Collection) convertedValue).iterator().next());
     }
     
 }