1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.myfaces.view.facelets.tag.composite;
20
21 import java.io.IOException;
22
23 import javax.el.ValueExpression;
24 import javax.faces.component.UIComponent;
25 import javax.faces.component.UIViewRoot;
26 import javax.faces.el.CompositeComponentExpressionHolder;
27
28 import org.apache.myfaces.el.unified.resolver.CompositeComponentELResolver;
29 import org.apache.myfaces.view.facelets.FaceletTestCase;
30 import org.junit.Assert;
31 import org.junit.Test;
32
33 /**
34 * Tests for using BeanValidation in conjunction with Composite Components.
35 *
36 * @author Jakob Korherr (latest modification by $Author$)
37 * @version $Revision$ $Date$
38 */
39 public class CompositeComponentBeanValidationTest extends FaceletTestCase
40 {
41
42 /**
43 * Tests the case that a composite component includes an editableValueHolder
44 * attribute which points to a property that is validated via BeanValidation.
45 * In this case the BeanValidator would get the ValueExpression #{cc.attrs.input}
46 * which he does not need. He needs the actual ValueExpression, thus he has
47 * to get it from the composite component. To accomplish this, he uses the
48 * CompositeComponentExpressionHolder interface.
49 *
50 * @throws IOException
51 */
52 @Test
53 public void testCompositeComponentExpressionHolder() throws IOException
54 {
55 UIViewRoot root = facesContext.getViewRoot();
56 vdl.buildView(facesContext, root, "testSimpleEditableValueHolder.xhtml");
57
58 UIComponent form = root.findComponent("testForm1");
59 UIComponent compositeComponent = form.getChildren().get(0);
60
61 // "resolve" #{cc.attrs}
62 CompositeComponentELResolver resolver = new CompositeComponentELResolver();
63 Object attrs = resolver.getValue(facesContext.getELContext(), compositeComponent, "attrs");
64
65 // the resolved value has to be a CompositeComponentExpressionHolder
66 Assert.assertTrue(attrs instanceof CompositeComponentExpressionHolder);
67
68 // get the actual ValueExpression which is needed by the BeanValidator
69 ValueExpression valueExpression
70 = ((CompositeComponentExpressionHolder) attrs).getExpression("input");
71
72 // the expression String from the VE has to be #{myBean.input}
73 Assert.assertTrue("#{myBean.input}".equals(valueExpression.getExpressionString()));
74 }
75
76 }