org.xchain.framework.jxpath.JXPathContextTest.java Source code

Introduction

Here is the source code for org.xchain.framework.jxpath.JXPathContextTest.java

Source

/**
 *    Copyright 2011 meltmedia
 *
 *    Licensed 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.xchain.framework.jxpath;

import static org.junit.Assert.assertEquals;

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.jxpath.JXPathContext;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

/**
 * @author Christian Trimble
 * @author Devon Tackett
 * @author John Trimble
 */
public class JXPathContextTest {
    @Before
    public void setUp() {
    }

    @After
    public void tearDown() {
    }

    @Test
    public void testRelativeContext() throws Exception {
        Node root = new Node("root");
        Node child = new Node("child");
        root.getChild().add(child);

        JXPathContext rootContext = JXPathContext.newContext(root);

        JXPathContext childContext = rootContext.getRelativeContext(rootContext.getPointer("/child"));

        String rootName = (String) childContext.getValue("/name");
        assertEquals("The root node has the wrong name.", "root", rootName);

        String childName = (String) childContext.getValue("name");
        assertEquals("The context node has the wrong name.", "child", childName);
    }

    @Test
    public void testBindMethodIgnore() throws Exception {
        JXPathContext context = JXPathContext.newContext(new Object());
        context.getVariables().declareVariable("sub-foo", new SubFoo());
        context.getVariables().declareVariable("bar", new SubBar());

        // This will throw a JXPathException, due to an ambiguous method lookup, unless 
        // GenericsWisePackageFunctions is used.
        String result = (String) context.getValue("take($sub-foo, $bar)", String.class);
        assertEquals("SubFoo", result);
    }

    public static class Foo<E> {
        public String take(E instance) {
            return "Foo";
        }
    }

    public static class SubFoo extends Foo<Bar> {
        @Override
        public String take(Bar instance) {
            return "SubFoo";
        }
    }

    public static class Bar {
    }

    public static class SubBar extends Bar {
    }

    public static class Node {
        protected String name = null;
        protected List<Node> childList = new ArrayList<Node>();

        public Node(String name) {
            this.name = name;
        }

        public String getName() {
            return this.name;
        }

        public List<Node> getChild() {
            return childList;
        }
    }

}