/**
 * Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright ownership. Apereo
 * 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 the
 * following location:
 *
 * <p>http://www.apache.org/licenses/LICENSE-2.0
 *
 * <p>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.apereo.portal.xml.xpath;

import static org.junit.Assert.assertEquals;

import java.util.Collections;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.xpath.XPathConstants;
import org.junit.Before;
import org.junit.Test;
import org.w3c.dom.Document;

/**
 */
public class XPathPoolImplTest {
    private Document document;

    @Before
    public void setup() throws Exception {
        final DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        final DocumentBuilder db = dbf.newDocumentBuilder();
        this.document = db.parse(getClass().getResourceAsStream("guestLayout.xml"));
    }

    @Test
    public void testXPathExpressionVariables() throws Exception {
        final XPathPoolImpl xpathPool = new XPathPoolImpl();

        assertEquals(0, xpathPool.getNumActive());
        assertEquals(0, xpathPool.getNumIdle());

        final String defaultTabId1 =
                xpathPool.evaluate(
                        "/layout/folder/folder[@type='regular' and @hidden!='true'][$defaultTab]/@ID",
                        Collections.singletonMap("defaultTab", 1),
                        this.document,
                        XPathConstants.STRING);

        assertEquals(0, xpathPool.getNumActive());
        assertEquals(1, xpathPool.getNumIdle());

        assertEquals("u16l1s3", defaultTabId1);

        final String defaultTabId2 =
                xpathPool.evaluate(
                        "/layout/folder/folder[@type='regular' and @hidden!='true'][$defaultTab]/@ID",
                        Collections.singletonMap("defaultTab", 2),
                        this.document,
                        XPathConstants.STRING);

        assertEquals(0, xpathPool.getNumActive());
        assertEquals(1, xpathPool.getNumIdle());

        assertEquals("u18l1s3", defaultTabId2);
    }
}