/*
******************************************************************
Copyright (c) 2001,2015 Jeff Martin, Tim Bacon
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above
      copyright notice, this list of conditions and the following
      disclaimer in the documentation and/or other materials provided
      with the distribution.
    * Neither the name of the XMLUnit nor the names
      of its contributors may be used to endorse or promote products
      derived from this software without specific prior written
      permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.

******************************************************************
*/

package org.custommonkey.xmlunit;

import org.custommonkey.xmlunit.examples.CountingNodeTester;
import org.custommonkey.xmlunit.exceptions.ConfigurationException;
import org.custommonkey.xmlunit.exceptions.XpathException;

import java.io.IOException;
import java.io.Reader;

import junit.framework.TestCase;
import org.w3c.dom.Document;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;


/**
 * JUnit TestCase subclass: extend this to add XML assertion facilities to your
 * test suites.
 * Available assertions are provided by static methods of the {@link XMLAssert
 * XMLAssert} class.
 * NB: All underlying similarity and difference testing is done using {@link
 * Diff Diff} instances which can be instantiated and evaluated independently of
 * an XMLTestCase.
 * @see Diff#similar()
 * @see Diff#identical()
 */
public abstract class XMLTestCase extends TestCase implements XSLTConstants {
    /**
     * Construct a new XML test case.
     */
    public XMLTestCase(){
        super();
    }

    /**
     * Construct a new test case.
     * @param name Name of test
     */
    public XMLTestCase(String name){
        super(name);
    }

    /**
     * Compare XML documents provided by two InputSource classes
     * @param control Control document
     * @param test Document to test
     * @return Diff object describing differences in documents
     * @throws SAXException
     * @throws IOException
     */
    public Diff compareXML(InputSource control, InputSource test)
        throws SAXException, IOException {
        return XMLUnit.compareXML(control, test);
    }

    /**
     * Compare XML documents provided by two Reader classes
     * @param control Control document
     * @param test Document to test
     * @return Diff object describing differences in documents
     * @throws SAXException
     * @throws IOException
     */
    public Diff compareXML(Reader control, Reader test)
        throws SAXException, IOException {
        return XMLUnit.compareXML(control, test);
    }

    /**
     * Compare XML documents provided by two Reader classes
     * @param control Control document
     * @param test Document to test
     * @return Diff object describing differences in documents
     * @throws SAXException
     * @throws IOException
     */
    public Diff compareXML(String control, Reader test)
        throws SAXException, IOException {
        return XMLUnit.compareXML(control, test);
    }

    /**
     * Compare XML documents provided by two Reader classes
     * @param control Control document
     * @param test Document to test
     * @return Diff object describing differences in documents
     * @throws SAXException
     * @throws IOException
     */
    public Diff compareXML(Reader control, String test)
        throws SAXException, IOException {
        return XMLUnit.compareXML(control, test);
    }

    /**
     * Compare two XML documents provided as strings
     * @param control Control document
     * @param test Document to test
     * @return Diff object describing differences in documents
     * @throws SAXException
     * @throws IOException
     */
    public Diff compareXML(String control, String test)
        throws SAXException, IOException {
        return XMLUnit.compareXML(control, test);
    }

    /**
     * Compare two XML documents provided as strings
     * @param control Control document
     * @param test Document to test
     * @return Diff object describing differences in documents
     */
    public Diff compareXML(Document control, Document test) {
        return XMLUnit.compareXML(control, test);
    }

    /**
     * Assert that the result of an XML comparison is or is not similar.
     * @param diff the result of an XML comparison
     * @param assertion true if asserting that result is similar
     */
    public void assertXMLEqual(Diff diff, boolean assertion) {
        XMLAssert.assertXMLEqual(diff, assertion);
    }

    /**
     * Assert that the result of an XML comparison is or is not similar.
     * @param msg additional message to display if assertion fails
     * @param diff the result of an XML comparison
     * @param assertion true if asserting that result is similar
     */
    public void assertXMLEqual(String msg, Diff diff, boolean assertion) {
        XMLAssert.assertXMLEqual(msg, diff, assertion);
    }

    /**
     * Assert that the result of an XML comparison is or is not identical
     * @param diff the result of an XML comparison
     * @param assertion true if asserting that result is identical
     */
    public void assertXMLIdentical(Diff diff, boolean assertion) {
        XMLAssert.assertXMLIdentical(diff.toString(), diff, assertion);
    }

    /**
     * Assert that the result of an XML comparison is or is not identical
     * @param msg Message to display if assertion fails
     * @param diff the result of an XML comparison
     * @param assertion true if asserting that result is identical
     */
    public void assertXMLIdentical(String msg, Diff diff, boolean assertion) {
        XMLAssert.assertXMLIdentical(msg, diff, assertion);
    }

    /**
     * Assert that two XML documents are similar
     * @param control XML to be compared against
     * @param test XML to be tested
     * @throws SAXException
     * @throws IOException
     */
    public void assertXMLEqual(InputSource control, InputSource test)
        throws SAXException, IOException {
        XMLAssert.assertXMLEqual(control, test);
    }

    /**
     * Assert that two XML documents are similar
     * @param control XML to be compared against
     * @param test XML to be tested
     * @throws SAXException
     * @throws IOException
     */
    public void assertXMLEqual(String control, String test)
        throws SAXException, IOException {
        XMLAssert.assertXMLEqual(control, test);
    }

    /**
     * Assert that two XML documents are similar
     * @param control XML to be compared against
     * @param test XML to be tested
     */
    public void assertXMLEqual(Document control, Document test) {
        XMLAssert.assertXMLEqual(control, test);
    }

    /**
     * Assert that two XML documents are similar
     * @param control XML to be compared against
     * @param test XML to be tested
     * @throws SAXException
     * @throws IOException
     */
    public void assertXMLEqual(Reader control, Reader test)
        throws SAXException, IOException {
        XMLAssert.assertXMLEqual(control, test);
    }

    /**
     * Assert that two XML documents are similar
     * @param err Message to be displayed on assertion failure
     * @param control XML to be compared against
     * @param test XML to be tested
     * @throws SAXException
     * @throws IOException
     */
    public void assertXMLEqual(String err, String control, String test)
        throws SAXException, IOException {
        XMLAssert.assertXMLEqual(err, control, test);
    }

    /**
     * Assert that two XML documents are similar
     * @param err Message to be displayed on assertion failure
     * @param control XML to be compared against
     * @param test XML to be tested
     * @throws SAXException
     * @throws IOException
     */
    public void assertXMLEqual(String err, InputSource control,
                               InputSource test)
        throws SAXException, IOException {
        XMLAssert.assertXMLEqual(err, control, test);
    }

    /**
     * Assert that two XML documents are similar
     * @param err Message to be displayed on assertion failure
     * @param control XML to be compared against
     * @param test XML to be tested
     */
    public void assertXMLEqual(String err, Document control, Document test) {
        XMLAssert.assertXMLEqual(err, control, test);
    }

    /**
     * Assert that two XML documents are similar
     * @param err Message to be displayed on assertion failure
     * @param control XML to be compared against
     * @param test XML to be tested
     * @throws SAXException
     * @throws IOException
     */
    public void assertXMLEqual(String err, Reader control, Reader test)
        throws SAXException, IOException {
        XMLAssert.assertXMLEqual(err, control, test);
    }

    /**
     * Assert that two XML documents are NOT similar
     * @param control XML to be compared against
     * @param test XML to be tested
     * @throws SAXException
     * @throws IOException
     */
    public void assertXMLNotEqual(InputSource control, InputSource test)
        throws SAXException, IOException {
        XMLAssert.assertXMLNotEqual(control, test);
    }

    /**
     * Assert that two XML documents are NOT similar
     * @param control XML to be compared against
     * @param test XML to be tested
     * @throws SAXException
     * @throws IOException
     */
    public void assertXMLNotEqual(String control, String test)
        throws SAXException, IOException {
        XMLAssert.assertXMLNotEqual(control, test);
    }

    /**
     * Assert that two XML documents are NOT similar
     * @param control XML to be compared against
     * @param test XML to be tested
     */
    public void assertXMLNotEqual(Document control, Document test) {
        XMLAssert.assertXMLNotEqual(control, test);
    }

    /**
     * Assert that two XML documents are NOT similar
     * @param control XML to be compared against
     * @param test XML to be tested
     * @throws SAXException
     * @throws IOException
     */
    public void assertXMLNotEqual(Reader control, Reader test)
        throws SAXException, IOException {
        XMLAssert.assertXMLNotEqual(control, test);
    }

    /**
     * Assert that two XML documents are NOT similar
     * @param err Message to be displayed on assertion failure
     * @param control XML to be compared against
     * @param test XML to be tested
     * @throws SAXException
     * @throws IOException
     */
    public void assertXMLNotEqual(String err, InputSource control,
                                  InputSource test)
        throws SAXException, IOException {
        XMLAssert.assertXMLNotEqual(err, control, test);
    }

    /**
     * Assert that two XML documents are NOT similar
     * @param err Message to be displayed on assertion failure
     * @param control XML to be compared against
     * @param test XML to be tested
     * @throws SAXException
     * @throws IOException
     */
    public void assertXMLNotEqual(String err, String control, String test)
        throws SAXException, IOException {
        XMLAssert.assertXMLNotEqual(err, control, test);
    }

    /**
     * Assert that two XML documents are NOT similar
     * @param err Message to be displayed on assertion failure
     * @param control XML to be compared against
     * @param test XML to be tested
     */
    public void assertXMLNotEqual(String err, Document control, Document test) {
        XMLAssert.assertXMLNotEqual(err, control, test);
    }

    /**
     * Assert that two XML documents are NOT similar
     * @param err Message to be displayed on assertion failure
     * @param control XML to be compared against
     * @param test XML to be tested
     * @throws SAXException
     * @throws IOException
     */
    public void assertXMLNotEqual(String err, Reader control, Reader test)
        throws SAXException, IOException {
        XMLAssert.assertXMLNotEqual(err, control, test);
    }

    /**
     * Assert that the node lists of two Xpaths in the same document are equal
     * @param controlXpath
     * @param testXpath
     * @param document
     * @see XpathEngine
     */
    public void assertXpathsEqual(String controlXpath, String testXpath,
                                  InputSource document)
        throws SAXException, IOException, XpathException {
        XMLAssert.assertXpathsEqual(controlXpath, testXpath, document);
    }

    /**
     * Assert that the node lists of two Xpaths in the same document are equal
     * @param controlXpath
     * @param testXpath
     * @param document
     * @see XpathEngine
     */
    public void assertXpathsEqual(String controlXpath, String testXpath,
                                  Document document)
        throws XpathException {
        XMLAssert.assertXpathsEqual(controlXpath, testXpath, document);
    }

    /**
     * Assert that the node lists of two Xpaths in the same XML string are
     * equal
     * @param controlXpath
     * @param testXpath
     * @param inXMLString
     * @throws SAXException
     * @throws IOException
     */
    public void assertXpathsEqual(String controlXpath, String testXpath,
                                  String inXMLString)
        throws SAXException, IOException, XpathException {
        XMLAssert.assertXpathsEqual(controlXpath, testXpath, inXMLString);
    }

    /**
     * Assert that the node lists of two Xpaths in two XML pieces are equal
     * @param controlXpath
     * @param control
     * @param testXpath
     * @param test
     * @throws SAXException
     * @throws IOException
     */
    public void assertXpathsEqual(String controlXpath, InputSource control,
                                  String testXpath, InputSource test)
        throws SAXException, IOException, XpathException {
        XMLAssert.assertXpathsEqual(controlXpath, control,
                                    testXpath, test);
    }

    /**
     * Assert that the node lists of two Xpaths in two XML strings are equal
     * @param controlXpath
     * @param inControlXMLString
     * @param testXpath
     * @param inTestXMLString
     * @throws SAXException
     * @throws IOException
     */
    public void assertXpathsEqual(String controlXpath,
                                  String inControlXMLString, String testXpath,
                                  String inTestXMLString)
        throws SAXException, IOException,
               XpathException {
        XMLAssert.assertXpathsEqual(controlXpath, inControlXMLString,
                                    testXpath, inTestXMLString);
    }

    /**
     * Assert that the node lists of two Xpaths in two documents are equal
     * @param controlXpath
     * @param testXpath
     * @param controlDocument
     * @param testDocument
     * @see XpathEngine
     */
    public void assertXpathsEqual(String controlXpath,
                                  Document controlDocument,
                                  String testXpath, Document testDocument)
        throws XpathException {
        XMLAssert.assertXpathsEqual(controlXpath, controlDocument, testXpath,
                                    testDocument);
    }

    /**
     * Assert that the node lists of two Xpaths in the same document are NOT equal
     * @param controlXpath
     * @param testXpath
     * @param document
     * @see XpathEngine
     */
    public void assertXpathsNotEqual(String controlXpath, String testXpath,
                                     Document document)
        throws XpathException {
        XMLAssert.assertXpathsNotEqual(controlXpath, testXpath, document);
    }

    /**
     * Assert that the node lists of two Xpaths in the same XML are NOT
     * equal
     * @param controlXpath
     * @param testXpath
     * @param control
     * @throws SAXException
     * @throws IOException
     */
    public void assertXpathsNotEqual(String controlXpath, String testXpath,
                                     InputSource control)
        throws SAXException, IOException, XpathException {
        XMLAssert.assertXpathsNotEqual(controlXpath, testXpath, control);
    }

    /**
     * Assert that the node lists of two Xpaths in the same XML string are NOT
     * equal
     * @param controlXpath
     * @param testXpath
     * @param inXMLString
     * @throws SAXException
     * @throws IOException
     */
    public void assertXpathsNotEqual(String controlXpath, String testXpath,
                                     String inXMLString)
        throws SAXException,
               IOException, XpathException {
        XMLAssert.assertXpathsNotEqual(controlXpath, testXpath, inXMLString);
    }

    /**
     * Assert that the node lists of two Xpaths in two pieces of XML
     * are NOT equal
     * @param controlXpath
     * @param control
     * @param testXpath
     * @param test
     * @throws SAXException
     * @throws IOException
     */
    public void assertXpathsNotEqual(String controlXpath, InputSource control,
                                     String testXpath, InputSource test)
        throws SAXException, IOException, XpathException {
        XMLAssert.assertXpathsNotEqual(controlXpath, control, testXpath, test);
    }

    /**
     * Assert that the node lists of two Xpaths in two XML strings are NOT equal
     * @param controlXpath
     * @param inControlXMLString
     * @param testXpath
     * @param inTestXMLString
     * @throws SAXException
     * @throws IOException
     */
    public void assertXpathsNotEqual(String controlXpath,
                                     String inControlXMLString,
                                     String testXpath, String inTestXMLString)
        throws SAXException, IOException,
               XpathException {
        XMLAssert.assertXpathsNotEqual(controlXpath, inControlXMLString,
                                       testXpath, inTestXMLString);
    }

    /**
     * Assert that the node lists of two Xpaths in two documents are NOT equal
     * @param controlXpath
     * @param testXpath
     * @param controlDocument
     * @param testDocument
     * @see XpathEngine
     */
    public void assertXpathsNotEqual(String controlXpath,
                                     Document controlDocument,
                                     String testXpath, Document testDocument)
        throws XpathException {
        XMLAssert.assertXpathsNotEqual(controlXpath, controlDocument,
                                       testXpath, testDocument);
    }

    /**
     * Assert that the evaluation of two Xpaths in the same document are equal
     * @param controlXpath
     * @param testXpath
     * @param document
     * @see XpathEngine
     */
    public void assertXpathValuesEqual(String controlXpath, String testXpath,
                                       Document document)
        throws XpathException {
        XMLAssert.assertXpathValuesEqual(controlXpath, testXpath, document);
    }

    /**
     * Assert that the evaluation of two Xpaths in the same XML are
     *  equal
     * @param controlXpath
     * @param testXpath
     * @param control
     * @throws SAXException
     * @throws IOException
     */
    public void assertXpathValuesEqual(String controlXpath, String testXpath,
                                       InputSource control)
        throws SAXException, IOException, XpathException {
        XMLAssert.assertXpathValuesEqual(controlXpath, testXpath, control);
    }

    /**
     * Assert that the evaluation of two Xpaths in the same XML string are
     *  equal
     * @param controlXpath
     * @param testXpath
     * @param inXMLString
     * @throws SAXException
     * @throws IOException
     */
    public void assertXpathValuesEqual(String controlXpath, String testXpath,
                                       String inXMLString)
        throws SAXException, IOException,
               XpathException {
        XMLAssert.assertXpathValuesEqual(controlXpath, testXpath, inXMLString);
    }

    /**
     * Assert that the evaluation of two Xpaths in two XML strings are equal
     * @param controlXpath
     * @param control
     * @param testXpath
     * @param test
     * @throws SAXException
     * @throws IOException
     */
    public void assertXpathValuesEqual(String controlXpath,
                                       InputSource control,
                                       String testXpath,
                                       InputSource test)
        throws SAXException, IOException, XpathException {
        XMLAssert.assertXpathValuesEqual(controlXpath, control,
                                         testXpath, test);
    }

    /**
     * Assert that the evaluation of two Xpaths in two XML strings are equal
     * @param controlXpath
     * @param inControlXMLString
     * @param testXpath
     * @param inTestXMLString
     * @throws SAXException
     * @throws IOException
     */
    public void assertXpathValuesEqual(String controlXpath,
                                       String inControlXMLString,
                                       String testXpath,
                                       String inTestXMLString)
        throws SAXException, IOException,
               XpathException {
        XMLAssert.assertXpathValuesEqual(controlXpath, inControlXMLString,
                                         testXpath, inTestXMLString);
    }

    /**
     * Assert that the evaluation of two Xpaths in two documents are equal
     * @param controlXpath
     * @param testXpath
     * @param controlDocument
     * @param testDocument
     * @see XpathEngine
     */
    public void assertXpathValuesEqual(String controlXpath,
                                       Document controlDocument,
                                       String testXpath, Document testDocument)
        throws XpathException {
        XMLAssert.assertXpathValuesEqual(controlXpath, controlDocument,
                                         testXpath, testDocument);
    }

    /**
     * Assert that the evaluation of two Xpaths in the same XML string are
     * NOT equal
     * @param controlXpath
     * @param testXpath
     * @param control
     * @throws SAXException
     * @throws IOException
     */
    public void assertXpathValuesNotEqual(String controlXpath,
                                          String testXpath,
                                          InputSource control)
        throws SAXException, IOException, XpathException {
        XMLAssert.assertXpathValuesNotEqual(controlXpath, testXpath,
                                            control);
    }

    /**
     * Assert that the evaluation of two Xpaths in the same XML string are
     * NOT equal
     * @param controlXpath
     * @param testXpath
     * @param inXMLString
     * @throws SAXException
     * @throws IOException
     */
    public void assertXpathValuesNotEqual(String controlXpath, String testXpath,
                                          String inXMLString)
        throws SAXException, IOException,
               XpathException {
        XMLAssert.assertXpathValuesNotEqual(controlXpath, testXpath,
                                            inXMLString);
    }

    /**
     * Assert that the evaluation of two Xpaths in the same document are
     * NOT equal
     * @param controlXpath
     * @param testXpath
     * @param document
     */
    public void assertXpathValuesNotEqual(String controlXpath, String testXpath,
                                          Document document)
        throws XpathException {
        XMLAssert.assertXpathValuesNotEqual(controlXpath, testXpath, document);
    }

    /**
     * Assert that the evaluation of two Xpaths in two XML strings are
     * NOT equal
     * @param controlXpath
     * @param control
     * @param testXpath
     * @param test
     * @throws SAXException
     * @throws IOException
     */
    public void assertXpathValuesNotEqual(String controlXpath,
                                          InputSource control,
                                          String testXpath,
                                          InputSource test)
        throws SAXException, IOException, XpathException {
        XMLAssert.assertXpathValuesNotEqual(controlXpath, control,
                                            testXpath, test);
    }

    /**
     * Assert that the evaluation of two Xpaths in two XML strings are
     * NOT equal
     * @param controlXpath
     * @param inControlXMLString
     * @param testXpath
     * @param inTestXMLString
     * @throws SAXException
     * @throws IOException
     */
    public void assertXpathValuesNotEqual(String controlXpath,
                                          String inControlXMLString,
                                          String testXpath,
                                          String inTestXMLString)
        throws SAXException, IOException,
               XpathException {
        XMLAssert.assertXpathValuesNotEqual(controlXpath, inControlXMLString,
                                            testXpath, inTestXMLString);
    }

    /**
     * Assert that the evaluation of two Xpaths in two documents are
     * NOT equal
     * @param controlXpath
     * @param testXpath
     * @param controlDocument
     * @param testDocument
     */
    public void assertXpathValuesNotEqual(String controlXpath,
                                          Document controlDocument,
                                          String testXpath,
                                          Document testDocument)
        throws XpathException {
        XMLAssert.assertXpathValuesNotEqual(controlXpath, controlDocument,
                                            testXpath, testDocument);
    }

    /**
     * Assert the value of an Xpath expression in an XML String
     * @param expectedValue
     * @param xpathExpression
     * @param control
     * @throws SAXException
     * @throws IOException
     * @see XpathEngine which provides the underlying evaluation mechanism
     */
    public void assertXpathEvaluatesTo(String expectedValue,
                                       String xpathExpression,
                                       InputSource control)
        throws SAXException, IOException, XpathException {
        XMLAssert.assertXpathEvaluatesTo(expectedValue, xpathExpression,
                                         control);
    }

    /**
     * Assert the value of an Xpath expression in an XML String
     * @param expectedValue
     * @param xpathExpression
     * @param inXMLString
     * @throws SAXException
     * @throws IOException
     * @see XpathEngine which provides the underlying evaluation mechanism
     */
    public void assertXpathEvaluatesTo(String expectedValue,
                                       String xpathExpression,
                                       String inXMLString)
        throws SAXException, IOException, 
               XpathException {
        XMLAssert.assertXpathEvaluatesTo(expectedValue, xpathExpression,
                                         inXMLString);
    }

    /**
     * Assert the value of an Xpath expression in an DOM Document
     * @param expectedValue
     * @param xpathExpression
     * @param inDocument
     * @see XpathEngine which provides the underlying evaluation mechanism
     */
    public void assertXpathEvaluatesTo(String expectedValue,
                                       String xpathExpression,
                                       Document inDocument)
        throws XpathException {
        XMLAssert.assertXpathEvaluatesTo(expectedValue, xpathExpression,
                                         inDocument);
    }

    /**
     * Assert that a specific XPath exists in some given XML
     * @param xPathExpression
     * @param xml
     * @see XpathEngine which provides the underlying evaluation mechanism
     */
    public void assertXpathExists(String xPathExpression, 
                                  InputSource xml)
        throws IOException, SAXException, XpathException {
        XMLAssert.assertXpathExists(xPathExpression, xml);
    }
    
    /**
     * Assert that a specific XPath exists in some given XML
     * @param xPathExpression
     * @param inXMLString
     * @see XpathEngine which provides the underlying evaluation mechanism
     */
    public void assertXpathExists(String xPathExpression, 
                                  String inXMLString)
        throws IOException, SAXException, XpathException {
        XMLAssert.assertXpathExists(xPathExpression, inXMLString);
    }
    
    /**
     * Assert that a specific XPath exists in some given XML
     * @param xPathExpression
     * @param inDocument
     * @see XpathEngine which provides the underlying evaluation mechanism
     */
    public void assertXpathExists(String xPathExpression, Document inDocument) 
        throws XpathException {
        XMLAssert.assertXpathExists(xPathExpression, inDocument);
    }

    /**
     * Assert that a specific XPath does NOT exist in some given XML
     * @param xPathExpression
     * @param xml
     * @see XpathEngine which provides the underlying evaluation mechanism
     */
    public void assertXpathNotExists(String xPathExpression, 
                                     InputSource xml)
        throws IOException, SAXException, XpathException {
        XMLAssert.assertXpathNotExists(xPathExpression, xml);
    }
    
    /**
     * Assert that a specific XPath does NOT exist in some given XML
     * @param xPathExpression
     * @param inXMLString
     * @see XpathEngine which provides the underlying evaluation mechanism
     */
    public void assertXpathNotExists(String xPathExpression, 
                                     String inXMLString)
        throws IOException, SAXException, XpathException {
        XMLAssert.assertXpathNotExists(xPathExpression, inXMLString);
    }
    
    /**
     * Assert that a specific XPath does NOT exist in some given XML
     * @param xPathExpression
     * @param inDocument
     * @see XpathEngine which provides the underlying evaluation mechanism
     */
    public void assertXpathNotExists(String xPathExpression, 
                                     Document inDocument) 
        throws XpathException {
        XMLAssert.assertXpathNotExists(xPathExpression, inDocument);
    }
    
    /**
     * Assert that a piece of XML contains valid XML: the input must
     * contain a DOCTYPE declaration to be validated
     * @param xml
     * @throws SAXException
     * @throws ConfigurationException if validation could not be turned on
     * @see Validator
     */
    public void assertXMLValid(InputSource xml)
        throws SAXException, ConfigurationException {
        XMLAssert.assertXMLValid(xml);
    }

    /**
     * Assert that a String containing XML contains valid XML: the String must
     * contain a DOCTYPE declaration to be validated
     * @param xmlString
     * @throws SAXException
     * @throws ConfigurationException if validation could not be turned on
     * @see Validator
     */
    public void assertXMLValid(String xmlString)
        throws SAXException, ConfigurationException {
        XMLAssert.assertXMLValid(xmlString);
    }

    /**
     * Assert that a piece of XML contains valid XML: the document must
     * contain a DOCTYPE to be validated, but the validation will use the
     * systemId to obtain the DTD
     * @param xml
     * @param systemId
     * @throws SAXException
     * @throws ConfigurationException if validation could not be turned on
     * @see Validator
     */
    public void assertXMLValid(InputSource xml, String systemId)
        throws SAXException, ConfigurationException {
        XMLAssert.assertXMLValid(xml, systemId);
    }

    /**
     * Assert that a String containing XML contains valid XML: the String must
     * contain a DOCTYPE to be validated, but the validation will use the
     * systemId to obtain the DTD
     * @param xmlString
     * @param systemId
     * @throws SAXException
     * @throws ConfigurationException if validation could not be turned on
     * @see Validator
     */
    public void assertXMLValid(String xmlString, String systemId)
        throws SAXException, ConfigurationException {
        XMLAssert.assertXMLValid(xmlString, systemId);
    }

    /**
     * Assert that a piece of XML contains valid XML: the document
     * will be given a DOCTYPE to be validated with the name and
     * systemId specified regardless of whether it already contains a
     * doctype declaration.
     * @param xml
     * @param systemId
     * @param doctype
     * @throws SAXException
     * @throws ConfigurationException if validation could not be turned on
     * @see Validator
     */
    public void assertXMLValid(InputSource xml, String systemId,
                               String doctype)
        throws SAXException, ConfigurationException {
        XMLAssert.assertXMLValid(xml, systemId, doctype);
    }

    /**
     * Assert that a String containing XML contains valid XML: the String will
     * be given a DOCTYPE to be validated with the name and systemId specified
     * regardless of whether it already contains a doctype declaration.
     * @param xmlString
     * @param systemId
     * @param doctype
     * @throws SAXException
     * @throws ConfigurationException if validation could not be turned on
     * @see Validator
     */
    public void assertXMLValid(String xmlString, String systemId, String doctype)
        throws SAXException, ConfigurationException {
        XMLAssert.assertXMLValid(xmlString, systemId, doctype);
    }

    /**
     * Assert that a Validator instance returns <code>isValid() == true</code>
     * @param validator
     */
    public void assertXMLValid(Validator validator) {
        XMLAssert.assertXMLValid(validator);
    }

    /**
     * Execute a <code>NodeTest</code> for a single node type
     * and assert that it passes
     * @param xml XML to be tested
     * @param tester The test strategy
     * @param nodeType The node type to be tested: constants defined
     *  in {@link org.w3c.dom.Node Node} e.g. <code>Node.ELEMENT_NODE</code>
     * @throws SAXException
     * @throws IOException
     * @see AbstractNodeTester
     * @see CountingNodeTester
     */
    public void assertNodeTestPasses(InputSource xml, NodeTester tester,
                                     short nodeType)
        throws SAXException, IOException {
        XMLAssert.assertNodeTestPasses(xml, tester, nodeType);
    }

    /**
     * Execute a <code>NodeTest</code> for a single node type
     * and assert that it passes
     * @param xmlString XML to be tested
     * @param tester The test strategy
     * @param nodeType The node type to be tested: constants defined
     *  in {@link org.w3c.dom.Node Node} e.g. <code>Node.ELEMENT_NODE</code>
     * @throws SAXException
     * @throws IOException
     * @see AbstractNodeTester
     * @see CountingNodeTester
     */
    public void assertNodeTestPasses(String xmlString, NodeTester tester,
                                     short nodeType)
        throws SAXException, IOException {
        XMLAssert.assertNodeTestPasses(xmlString, tester, nodeType);
    }

    /**
     * Execute a <code>NodeTest</code> for multiple node types and make an
     * assertion about it whether it is expected to pass
     * @param test a NodeTest instance containing the XML source to be tested
     * @param tester The test strategy
     * @param nodeTypes The node types to be tested: constants defined
     *  in {@link org.w3c.dom.Node Node} e.g. <code>Node.ELEMENT_NODE</code>
     * @param assertion true if the test is expected to pass, false otherwise
     * @see AbstractNodeTester
     * @see CountingNodeTester
     */
    public void assertNodeTestPasses(NodeTest test, NodeTester tester,
                                     short[] nodeTypes, boolean assertion) {
        XMLAssert.assertNodeTestPasses(test, tester, nodeTypes, assertion);
    }
}
