Package org.exist.xquery

Source Code of org.exist.xquery.ConstructedNodesTest

/*
* eXist Open Source Native XML Database
* Copyright (C) 2007-2009 The eXist Project
* http://exist-db.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*  $Id$
*/
package org.exist.xquery;

import javax.xml.transform.OutputKeys;

import org.exist.xmldb.DatabaseInstanceManager;
import org.exist.xmldb.XmldbURI;
import org.xmldb.api.DatabaseManager;
import org.xmldb.api.base.Collection;
import org.xmldb.api.base.Database;
import org.xmldb.api.base.ResourceSet;
import org.xmldb.api.base.XMLDBException;
import org.xmldb.api.modules.XPathQueryService;

import junit.framework.TestCase;
import junit.textui.TestRunner;

/** Tests for various constructed node operations (in-memory nodes)
* @author Adam Retter <adam.retter@devon.gov.uk>
* @author ljo
*/
public class ConstructedNodesTest extends TestCase
{
  private final static String TEST_DB_USER = "admin";
  private final static String TEST_DB_PWD = "";
 
  private XPathQueryService service;
  private Collection root = null;
  private Database database = null;
 
 
  public static void main(String[] args) throws XPathException
  {
    TestRunner.run(ConstructedNodesTest.class);
  }
 
  /**
   * Constructor for ConstructedNodesTest.
   * @param arg0
   */
  public ConstructedNodesTest(String arg0)
  {
    super(arg0);
  }
 
  /**
   * Iteratively constructs some nodes
   */
  public void testIterateConstructNodes() throws XPathException
  {
    String xquery =
        "declare variable $categories := \n" +
        "  <categories>\n" +
        "    <category uid=\"1\">Fruit</category>\n" +
        "    <category uid=\"2\">Vegetable</category>\n" +
        "    <category uid=\"3\">Meat</category>\n" +
        "    <category uid=\"4\">Dairy</category>\n" +
        "  </categories>\n" +
        ";\n\n" +
       
        "for $category in $categories/category return\n" +
        "  element option {\n" +
        "    attribute value {\n" +
        "      $category/@uid\n" +
        "    },\n" +
        "    text { $category }\n" +
        "  }";
   
    String expectedResults [] = {
      "<option value=\"1\">Fruit</option>",
      "<option value=\"2\">Vegetable</option>",
      "<option value=\"3\">Meat</option>",
      "<option value=\"4\">Dairy</option>"
    };
   
    ResourceSet result = null;
   
    try
    {
      result = service.query(xquery);
     
      assertEquals(expectedResults.length, result.getSize());
     
      for(int i = 0; i < result.getSize(); i++)
      {
        assertEquals(expectedResults[i], (String)result.getResource(i).getContent());
      }
    }
    catch (XMLDBException e)
    {
      System.out.println("testIterateConstructNodes(): " + e);
      fail(e.getMessage());
    }
  }
 
  /***
   * Test sorting of constructed nodes
   */
  public void testConstructedNodesSort()
  {
    String xquery =
      "declare variable $categories := \n" +
      "  <categories>\n" +
      "    <category uid=\"1\">Fruit</category>\n" +
      "    <category uid=\"2\">Vegetable</category>\n" +
      "    <category uid=\"3\">Meat</category>\n" +
      "    <category uid=\"4\">Dairy</category>\n" +
      "  </categories>\n" +
      ";\n\n" +
     
      "for $category in $categories/category order by $category/@uid descending return $category";
   
    String expectedResults [] = {
        "<category uid=\"4\">Dairy</category>",
        "<category uid=\"3\">Meat</category>",
        "<category uid=\"2\">Vegetable</category>",
        "<category uid=\"1\">Fruit</category>"
    };
   
    ResourceSet result = null;
   
    try
    {
      result = service.query(xquery);
     
      assertEquals(expectedResults.length, result.getSize());
     
      for(int i = 0; i < result.getSize(); i++)
      {
        assertEquals(expectedResults[i], (String)result.getResource(i).getContent());
      }
    }
    catch (XMLDBException e)
    {
      System.out.println("testConstructedNodesSort(): " + e);
      fail(e.getMessage());
    }
  }
 
  /**
   * Test retrieving sorted nodes by position
   */
  public void bugtestConstructedNodesPosition()
  {
    String xquery =
      "declare variable $categories := \n" +
      "  <categories>\n" +
      "    <category uid=\"1\">Fruit</category>\n" +
      "    <category uid=\"2\">Vegetable</category>\n" +
      "    <category uid=\"3\">Meat</category>\n" +
      "    <category uid=\"4\">Dairy</category>\n" +
      "  </categories>\n" +
      ";\n\n" +
     
      "$categories/category[1],\n" +
      "$categories/category[position() eq 1]";
   
    String expectedResults [] = {
        "<option value=\"1\">Fruit</option>",
        "<option value=\"1\">Fruit</option>"
        };
   
    ResourceSet result = null;
   
    try
    {
      result = service.query(xquery);
     
      assertEquals(expectedResults.length, result.getSize());
     
      for(int i = 0; i < result.getSize(); i++)
      {
        assertEquals(expectedResults[i], (String)result.getResource(i).getContent());
      }
    }
    catch (XMLDBException e)
    {
      System.out.println("testConstructedNodesPosition(): " + e);
      fail(e.getMessage());
    }
  }
 
  /**
   * Test storing constructed (text) nodes
   * Tests absence of bug #2646744 which gave err:XPTY0018 for $hello-text-first
   * cf org.exist.xquery.XQueryTest.testXPTY0018_mixedsequences_2429093()
   */
  public void testConstructedTextNodes() {
    String xquery =
      "declare variable $hello-text-first := <a>{ \"hello\" }<b>world</b></a>;\n" +
      "declare variable $hello-text-last := <a><b>world</b>{ \"hello\" }</a>;\n" +
      "($hello-text-first, $hello-text-last)";
   
    String expectedResults [] = {
        "<a>hello<b>world</b></a>",
        "<a><b>world</b>hello</a>"
        };
   
    ResourceSet result = null;
    try {
      String oki = service.getProperty(OutputKeys.INDENT);
      service.setProperty(OutputKeys.INDENT, "no");
 
      result = service.query(xquery);
           
      assertEquals(expectedResults.length, result.getSize());
     
      for(int i = 0; i < result.getSize(); i++)
      {
        assertEquals(expectedResults[i], (String)result.getResource(i).getContent());
      }
     
      // Restore indent property to ensure test atomicity
      service.setProperty(OutputKeys.INDENT, oki);
     
    } catch (XMLDBException e) {
      System.out.println("testConstructedTextNodes(): " + e);
      fail(e.getMessage());
    }
  }
 
  /*
   * @see TestCase#setUp()
   */
  protected void setUp() throws Exception
  {
    // initialize driver
    Class<?> cl = Class.forName("org.exist.xmldb.DatabaseImpl");
    database = (Database) cl.newInstance();
    database.setProperty("create-database", "true");
    DatabaseManager.registerDatabase(database);
    root = DatabaseManager.getCollection(XmldbURI.LOCAL_DB, TEST_DB_USER, TEST_DB_PWD);
    service = (XPathQueryService) root.getService( "XQueryService", "1.0" );
  }

  /*
   * @see TestCase#tearDown()
   */
  protected void tearDown() throws Exception
  {
    DatabaseManager.deregisterDatabase(database);
    DatabaseInstanceManager dim =
      (DatabaseInstanceManager) root.getService("DatabaseInstanceManager", "1.0");
    dim.shutdown();
       
        // clear instance variables
        service = null;
        root = null;
  }
}
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