package org.apache.maven.plugins.surefire.report;
   
   /*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF 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
   *
   *     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.
   */
  
  import java.io.File;
  import java.io.IOException;
  import java.net.URISyntaxException;
  import java.net.URL;
  import java.nio.file.Path;
  import java.nio.file.Paths;
  
  import javax.xml.transform.stream.StreamSource;
  
  import org.apache.maven.shared.utils.io.DirectoryScanner;
  import org.fest.assertions.Assertions;
  import org.junit.Assert;
  import org.junit.Test;
  import org.xmlunit.validation.Languages;
  import org.xmlunit.validation.ValidationProblem;
  import org.xmlunit.validation.ValidationResult;
  import org.xmlunit.validation.Validator;
  
  public class SurefireSchemaValidationTest
  {
  
      @Test
      public void validate_XMLs_against_schema()
          throws Exception
      {
          File basedir = getProjectBasedir();
  
          File xsd = getSchemaFile( basedir );
          Assert.assertTrue( "XSD schema validation not found", xsd.exists() );
  
          // looks for all xml surefire report in test resources
          DirectoryScanner ds = new DirectoryScanner();
          ds.setBasedir( basedir );
          ds.setIncludes( "**/TEST-*.xml" );
          ds.scan();
  
          String[] xmlFiles = ds.getIncludedFiles();
          Assertions.assertThat( xmlFiles ).describedAs( "No XML surefire reports found to validate" ).isNotEmpty();
  
          Validator v = Validator.forLanguage( Languages.W3C_XML_SCHEMA_NS_URI );
          v.setSchemaSource( new StreamSource( xsd ) );
  
          for ( String xmlFile : xmlFiles )
          {
              ValidationResult vr = v.validateInstance( new StreamSource( new File( basedir, xmlFile ) ) );
              StringBuilder msg = new StringBuilder();
              if ( !vr.isValid() )
              {
                  msg.append( xmlFile ).append( " has violations:" );
                  for ( ValidationProblem problem : vr.getProblems() )
                  {
                      msg.append( "\n" ) //
                         .append( " - " ).append( problem.getType() ) //
                         .append( " at row:" ).append( problem.getLine() ) //
                         .append( " col:" ).append( problem.getColumn() ) //
                         .append( ' ' ).append( problem.getMessage() );
                  }
              }
              Assert.assertTrue( Utils.toSystemNewLine( msg.toString() ), vr.isValid() );
          }
      }
  
      private File getProjectBasedir()
          throws URISyntaxException
      {
          // get the root path of test-classes
          URL basedirURL = SurefireSchemaValidationTest.class.getClassLoader().getResource( "." );
          return new File( basedirURL.toURI() );
      }
  
      private File getSchemaFile( File basedir )
          throws IOException
      {
          // get the schema file placed in a different module
          Path xsd = Paths.get( basedir.getAbsolutePath(), "..", "..", "..", "maven-surefire-plugin", "src", "site",
                                "resources", "xsd", "surefire-test-report-3.0.xsd" );
          return xsd.toFile().getCanonicalFile();
      }
 }