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* to you under the Apache License, Version 2.0 (the
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*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
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package javax.faces.event;
import java.lang.reflect.Field;
import java.util.Arrays;
import javax.el.MethodExpression;
import javax.el.MethodNotFoundException;
import javax.faces.component.UICommand;
import org.apache.myfaces.test.base.AbstractJsfTestCase;
import org.easymock.classextension.EasyMock;
/**
* Tests for {@link MethodExpressionActionListener}
*
* @author Martin Koci (latest modification by $Author: jakobk $)
* @author Jakob Korherr
* @version $Revision: 908941 $ $Date: 2010-02-11 07:07:42 -0500 (Thu, 11 Feb 2010) $
*/
public class MethodExpressionActionListenerTest extends AbstractJsfTestCase
{
private MethodExpression methodExpressionOneArg;
private MethodExpressionActionListener methodExpressionActionListener;
private MethodExpression methodExpressionZeroArg;
private UICommand uiComponent;
private ActionEvent actionEvent;
private Object[] paramsWithActionEvent;
public MethodExpressionActionListenerTest(String name)
{
super(name);
}
protected void setUp() throws Exception
{
super.setUp();
uiComponent = new UICommand();
actionEvent = new ActionEvent(uiComponent);
paramsWithActionEvent = new Object[] {actionEvent};
methodExpressionOneArg = EasyMock.createNiceMock(MethodExpression.class);
methodExpressionOneArg.getExpressionString();
EasyMock.expectLastCall().andReturn("#{aActionListener.processAction}").anyTimes();
methodExpressionZeroArg = EasyMock.createNiceMock(MethodExpression.class);
}
protected void tearDown() throws Exception
{
uiComponent = null;
actionEvent = null;
paramsWithActionEvent = null;
methodExpressionOneArg = null;
methodExpressionZeroArg = null;
super.tearDown();
}
public void testMethodExpressionActionListener()
{
methodExpressionActionListener = new MethodExpressionActionListener();
}
public void testMethodExpressionActionListenerMethodExpression()
{
EasyMock.replay(methodExpressionOneArg);
methodExpressionActionListener = new MethodExpressionActionListener(methodExpressionOneArg);
}
public void testMethodExpressionActionListenerMethodExpressionMethodExpression()
{
EasyMock.replay(methodExpressionOneArg);
EasyMock.replay(methodExpressionZeroArg);
methodExpressionActionListener
= new MethodExpressionActionListener(methodExpressionOneArg, methodExpressionZeroArg);
}
/**
* Test for case: method with ActionEvent param exists (pre-JSF 2.0 case)
*/
public void testProcessAction()
{
// First, try to invoke the MethodExpression passed to the constructor of this instance,
// passing the argument ActionEvent as the argument:
methodExpressionOneArg.invoke(EasyMock.eq(facesContext.getELContext()), EasyMock.aryEq(paramsWithActionEvent));
EasyMock.expectLastCall().andReturn(null).times(1);
EasyMock.replay(methodExpressionOneArg);
methodExpressionActionListener = new MethodExpressionActionListener(methodExpressionOneArg);
methodExpressionActionListener.processAction(actionEvent);
EasyMock.verify(methodExpressionOneArg);
}
/**
* Test for case: method exists but has no ActionEvent param (new possibility in JSF 2.0)
*/
public void testProcessAction2() throws Exception
{
// First, try to invoke the MethodExpression passed to the constructor of this instance,
// passing the argument ActionEvent as the argument
methodExpressionOneArg.invoke(EasyMock.eq(facesContext.getELContext()), EasyMock.aryEq(paramsWithActionEvent));
EasyMock.expectLastCall().andThrow(new MethodNotFoundException()).times(1);
// If a MethodNotFoundException is thrown,
// call to the zero argument MethodExpression derived from the MethodExpression passed
// to the constructor of this instance
methodExpressionZeroArg.invoke(EasyMock.eq(facesContext.getELContext()), EasyMock.aryEq(new Object[0]));
EasyMock.expectLastCall().andReturn(null).times(1);
EasyMock.replay(methodExpressionOneArg);
EasyMock.replay(methodExpressionZeroArg);
methodExpressionActionListener = new MethodExpressionActionListener(methodExpressionOneArg, methodExpressionZeroArg);
methodExpressionActionListener.processAction(actionEvent);
EasyMock.verify(methodExpressionOneArg);
EasyMock.verify(methodExpressionZeroArg);
}
public void testSaveState()
{
methodExpressionActionListener = new MethodExpressionActionListener(methodExpressionOneArg, methodExpressionZeroArg);
Object[] expectedState = new Object [] {methodExpressionOneArg, methodExpressionZeroArg};
assertTrue("Both MethodExpression instances described in the constructor must be saved.",
Arrays.deepEquals(expectedState, (Object[]) methodExpressionActionListener.saveState(facesContext)));
}
public void testRestoreState() throws IllegalAccessException, NoSuchFieldException
{
// State saving always call JavaBean constructor:
methodExpressionActionListener = new MethodExpressionActionListener();
// Both MethodExpression instances described in the constructor must be restored.
methodExpressionActionListener.restoreState(facesContext,
new Object[] {methodExpressionOneArg, methodExpressionZeroArg});
// Test if the instance variables are set to the right values via reflection
Field oneArgField = MethodExpressionActionListener.class.getDeclaredField("methodExpressionOneArg");
oneArgField.setAccessible(true);
assertEquals(methodExpressionOneArg, oneArgField.get(methodExpressionActionListener));
Field zeroArgField = MethodExpressionActionListener.class.getDeclaredField("methodExpressionZeroArg");
zeroArgField.setAccessible(true);
assertEquals(methodExpressionZeroArg, zeroArgField.get(methodExpressionActionListener));
}
}