Package org.ajax4jsf.webapp.taglib

Source Code of org.ajax4jsf.webapp.taglib.ValueBindingValueExpressionAdaptorTest$StateHolderTestValueExpression

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package org.ajax4jsf.webapp.taglib;

import java.io.ByteArrayInputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

import javax.faces.component.StateHolder;
import javax.faces.context.FacesContext;

import org.ajax4jsf.tests.AbstractAjax4JsfTestCase;
import org.ajax4jsf.tests.MockValueExpression;
import org.apache.commons.io.output.ByteArrayOutputStream;
import org.richfaces.webapp.taglib.ValueBindingValueExpressionAdaptor;

/**
* @author Nick Belaevski
*
*/
public class ValueBindingValueExpressionAdaptorTest extends
    AbstractAjax4JsfTestCase {

  public ValueBindingValueExpressionAdaptorTest(String name) {
    super(name);
  }

  public static final class StateHolderTestValueExpression extends
      MockValueExpression implements StateHolder {

    /**
     *
     */
    private static final long serialVersionUID = 4288036600538778835L;

    public StateHolderTestValueExpression() {
      super(null);
    }

    public StateHolderTestValueExpression(Object value) {
      super(value);
    }

    public boolean isTransient() {
      return false;
    }

    public void restoreState(FacesContext context, Object state) {
      setValue(context.getELContext(), state);
    }

    public Object saveState(FacesContext context) {
      return getValue(context.getELContext());
    }

    public void setTransient(boolean newTransientValue) {
    }

  }

  private ValueBindingValueExpressionAdaptor saveRestoreState(
      ValueBindingValueExpressionAdaptor adaptor) {
    ValueBindingValueExpressionAdaptor restoredAdaptor = new ValueBindingValueExpressionAdaptor();
    restoredAdaptor.restoreState(facesContext, adaptor
        .saveState(facesContext));
    return restoredAdaptor;
  }

  private ValueBindingValueExpressionAdaptor serializeDeserialize(
      ValueBindingValueExpressionAdaptor adaptor) throws Exception {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStream oos = new ObjectOutputStream(baos);
    try {
      oos.writeObject(adaptor);
    } finally {
      oos.close();
    }

    ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(
        baos.toByteArray()));
    try {
      return (ValueBindingValueExpressionAdaptor) ois.readObject();
    } finally {
      ois.close();
    }
  }

  public void testSaveRestoreState() throws Exception {
    ValueBindingValueExpressionAdaptor adaptor1 = new ValueBindingValueExpressionAdaptor(
        new MockValueExpression("testValue1"));

    assertEquals("testValue1", saveRestoreState(adaptor1).getValue(
        facesContext));

    ValueBindingValueExpressionAdaptor adaptor2 = new ValueBindingValueExpressionAdaptor(
        new StateHolderTestValueExpression("testValue2"));

    assertEquals("testValue2", saveRestoreState(adaptor2).getValue(
        facesContext));
  }

  public void testSerializeDeserialize() throws Exception {
    ValueBindingValueExpressionAdaptor adaptor1 = new ValueBindingValueExpressionAdaptor(
        new MockValueExpression("testValue1"));

    assertEquals("testValue1", serializeDeserialize(adaptor1).getValue(
        facesContext));

    ValueBindingValueExpressionAdaptor adaptor2 = new ValueBindingValueExpressionAdaptor(
        new StateHolderTestValueExpression("testValue2"));

    assertEquals("testValue2", serializeDeserialize(adaptor2).getValue(
        facesContext));
  }
}
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