/*

  *  Copyright (c) 2001-2009, Jean Tessier

  *  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 Jean Tessier nor the names of his 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 REGENTS 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 com.jeantessier.diff;

 import java.io.*;

 import java.util.*;

 import javax.xml.parsers.*;

 import javax.xml.xpath.*;

 import junit.framework.*;

 import org.apache.oro.text.perl.*;

 import org.w3c.dom.*;

 import org.xml.sax.*;

 import com.jeantessier.classreader.*;

 public class TestReport extends TestCase implements ErrorHandler {

     private static final String SPECIFIC_ENCODING   = "iso-latin-1";

     private static final String SPECIFIC_DTD_PREFIX = "./etc";

     private static final String OLD_CLASSPATH = "tests" + File.separator + "JarJarDiff" + File.separator + "old";

     private static final String NEW_CLASSPATH = "tests" + File.separator + "JarJarDiff" + File.separator + "new";

     private static final String OLD_PUBLISHED_CLASSPATH = "tests" + File.separator + "JarJarDiff" + File.separator + "oldpublished";

     private static final String NEW_PUBLISHED_CLASSPATH = "tests" + File.separator + "JarJarDiff" + File.separator + "newpublished";

     private XMLReader reader;

     private Perl5Util perl;

     protected void setUp() throws Exception {

         boolean validate = Boolean.getBoolean("DEPENDENCYFINDER_TESTS_VALIDATE");

         reader = SAXParserFactory.newInstance().newSAXParser().getXMLReader();

         reader.setFeature("http://xml.org/sax/features/validation", validate);

         reader.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", validate);

         reader.setErrorHandler(this);

         perl = new Perl5Util();

     }

     public void testDefaultDTDPrefix() {

         Report report = new Report();

         String xmlDocument = report.render();

         assertTrue(xmlDocument + "Missing DTD", perl.match("/DOCTYPE \\S+ SYSTEM \"(.*)\"/", xmlDocument));

         assertTrue("DTD \"" + perl.group(1) + "\" does not have prefix \"" + Report.DEFAULT_DTD_PREFIX + "\"", perl.group(1).startsWith(Report.DEFAULT_DTD_PREFIX));

         try {

             reader.parse(new InputSource(new StringReader(xmlDocument)));

         } catch (SAXException ex) {

             fail("Could not parse XML Document: " + ex.getMessage() + "\n" + xmlDocument);

         } catch (IOException ex) {

             fail("Could not read XML Document: " + ex.getMessage() + "\n" + xmlDocument);

         }

     }

     public void testSpecificDTDPrefix() {

         Report report = new Report(Report.DEFAULT_ENCODING, SPECIFIC_DTD_PREFIX);

         String xmlDocument = report.render();

         assertTrue(xmlDocument + "Missing DTD", perl.match("/DOCTYPE \\S+ SYSTEM \"(.*)\"/", xmlDocument));

         assertTrue("DTD \"" + perl.group(1) + "\" does not have prefix \"./etc\"", perl.group(1).startsWith(SPECIFIC_DTD_PREFIX));

         try {

             reader.parse(new InputSource(new StringReader(xmlDocument)));

         } catch (SAXException ex) {

             fail("Could not parse XML Document: " + ex.getMessage() + "\n" + xmlDocument);

         } catch (IOException ex) {

             fail("Could not read XML Document: " + ex.getMessage() + "\n" + xmlDocument);

         }

     }

     public void testDefaultEncoding() {

         Report report = new Report();

         String xmlDocument = report.render();

         assertTrue(xmlDocument + "Missing encoding", perl.match("/encoding=\"([^\"]*)\"/", xmlDocument));

         assertEquals("Encoding", Report.DEFAULT_ENCODING, perl.group(1));

         try {

             reader.parse(new InputSource(new StringReader(xmlDocument)));

         } catch (SAXException ex) {

             fail("Could not parse XML Document: " + ex.getMessage() + "\n" + xmlDocument);

         } catch (IOException ex) {

             fail("Could not read XML Document: " + ex.getMessage() + "\n" + xmlDocument);

         }

     }

     public void testSpecificEncoding() {

         Report report = new Report(SPECIFIC_ENCODING, Report.DEFAULT_DTD_PREFIX);

         String xmlDocument = report.render();

         assertTrue(xmlDocument + "Missing encoding", perl.match("/encoding=\"([^\"]*)\"/", xmlDocument));

         assertEquals("Encoding", SPECIFIC_ENCODING, perl.group(1));

         try {

             reader.parse(new InputSource(new StringReader(xmlDocument)));

         } catch (SAXException ex) {

             fail("Could not parse XML Document: " + ex.getMessage() + "\n" + xmlDocument);

         } catch (IOException ex) {

             fail("Could not read XML Document: " + ex.getMessage() + "\n" + xmlDocument);

         }

     }

     public void testContent() throws Exception {

         PackageMapper oldPackages = new PackageMapper();

         ClassfileLoader oldJar = new AggregatingClassfileLoader();

         oldJar.addLoadListener(oldPackages);

         oldJar.load(Collections.singleton(OLD_CLASSPATH));

         PackageMapper newPackages = new PackageMapper();

         ClassfileLoader newJar = new AggregatingClassfileLoader();

         newJar.addLoadListener(newPackages);

         newJar.load(Collections.singleton(NEW_CLASSPATH));

         DifferencesFactory factory = new DifferencesFactory();

         ProjectDifferences projectDifferences = (ProjectDifferences) factory.createProjectDifferences("test", "old", oldPackages, "new", newPackages);

         Report report = new Report(Report.DEFAULT_ENCODING, SPECIFIC_DTD_PREFIX);

         projectDifferences.accept(report);

         String xmlDocument = report.render();

         try {

             reader.parse(new InputSource(new StringReader(xmlDocument)));

         } catch (SAXException ex) {

             fail("Could not parse XML Document: " + ex.getMessage() + "\n" + xmlDocument);

         } catch (IOException ex) {

             fail("Could not read XML Document: " + ex.getMessage() + "\n" + xmlDocument);

         }

         XPath xPath = XPathFactory.newInstance().newXPath();

         InputSource in = new InputSource(new StringReader(xmlDocument));

         Document doc = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(in);

         assertNotNull("//differences", xPath.evaluate("//differences", doc));

         assertNotNull("*/old[text()='old']", xPath.evaluate("*/old[text()='old']", doc));

         assertEquals("*/modified-classes/class", 3, ((NodeList) xPath.evaluate("*/modified-classes/class", doc, XPathConstants.NODESET)).getLength());

     }

     public void testIncompatibleContent() throws Exception {

         PackageMapper oldPackages = new PackageMapper();

         ClassfileLoader oldJar = new AggregatingClassfileLoader();

         oldJar.addLoadListener(oldPackages);

         oldJar.load(Collections.singleton(OLD_PUBLISHED_CLASSPATH + File.separator + "ModifiedPackage" + File.separator + "CompatibleClass.class"));

         PackageMapper newPackages = new PackageMapper();

         ClassfileLoader newJar = new AggregatingClassfileLoader();

         newJar.addLoadListener(newPackages);

         newJar.load(Collections.singleton(NEW_PUBLISHED_CLASSPATH + File.separator + "ModifiedPackage" + File.separator + "CompatibleClass.class"));

         DifferencesFactory factory = new DifferencesFactory(new IncompatibleDifferenceStrategy(new NoDifferenceStrategy()));

         ProjectDifferences projectDifferences = (ProjectDifferences) factory.createProjectDifferences("test", "old", oldPackages, "new", newPackages);

         Report report = new Report(Report.DEFAULT_ENCODING, SPECIFIC_DTD_PREFIX);

         projectDifferences.accept(report);

         String xmlDocument = report.render();

         try {

             reader.parse(new InputSource(new StringReader(xmlDocument)));

         } catch (SAXException ex) {

             fail("Could not parse XML Document: " + ex.getMessage() + "\n" + xmlDocument);

         } catch (IOException ex) {

             fail("Could not read XML Document: " + ex.getMessage() + "\n" + xmlDocument);

         }

         XPath xPath = XPathFactory.newInstance().newXPath();

         InputSource in  = new InputSource(new StringReader(xmlDocument));

         Document doc = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(in);

         assertNotNull("//differences", xPath.evaluate("//differences", doc));

         assertNotNull("*/old[text()='old']", xPath.evaluate("*/old[text()='old']", doc));

         assertEquals("*/modified-classes/class", 1, ((NodeList) xPath.evaluate("*/modified-classes/class", doc, XPathConstants.NODESET)).getLength());

         assertEquals("*/modified-classes/class/modified-declaration", "", xPath.evaluate("*/modified-classes/class/modified-declaration", doc));

         assertEquals("*/modified-classes/class/modified-methods/feature", 1, ((NodeList) xPath.evaluate("*/modified-classes/class/modified-methods/feature", doc, XPathConstants.NODESET)).getLength());

         assertNotNull("*/modified-classes/class/modified-methods/feature/modified-declaration", xPath.evaluate("*/modified-classes/class/modified-methods/feature/modified-declaration", doc));

     }

     public void error(SAXParseException ex) {

         // Ignore

     }

     public void fatalError(SAXParseException ex) {

         // Ignore

     }

     public void warning(SAXParseException ex) {

         // Ignore

     }

 }