/*
    * 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.
   */
  
  package org.apache.commons.configuration2;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import javax.xml.transform.Transformer;
  import javax.xml.transform.TransformerFactory;
  import javax.xml.transform.dom.DOMResult;
  import javax.xml.transform.sax.SAXSource;
  
  import org.apache.commons.configuration2.io.FileHandler;
  import org.apache.commons.configuration2.tree.ImmutableNode;
  import org.apache.commons.jxpath.JXPathContext;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.w3c.dom.Document;
  import org.w3c.dom.Node;
  import org.xml.sax.InputSource;
  
  /**
   * Test class for HierarchicalConfigurationXMLReader.
   */
  public class TestHierarchicalConfigurationXMLReader {
      private static final String TEST_FILE = ConfigurationAssert.getTestFile("testHierarchicalXMLConfiguration.xml").getAbsolutePath();
  
      private HierarchicalConfigurationXMLReader<ImmutableNode> parser;
  
      @BeforeEach
      public void setUp() throws Exception {
          final XMLConfiguration config = new XMLConfiguration();
          final FileHandler handler = new FileHandler(config);
          handler.load(TEST_FILE);
          parser = new HierarchicalConfigurationXMLReader<>(config);
      }
  
      @Test
      public void testParse() throws Exception {
          final SAXSource source = new SAXSource(parser, new InputSource());
          final DOMResult result = new DOMResult();
          final Transformer trans = TransformerFactory.newInstance().newTransformer();
          trans.transform(source, result);
          final Node root = ((Document) result.getNode()).getDocumentElement();
          final JXPathContext ctx = JXPathContext.newContext(root);
  
          assertEquals("database", root.getNodeName());
          assertEquals(1, ctx.selectNodes("/*").size());
          assertEquals(2, ctx.selectNodes("/tables/table").size());
          assertEquals("users", ctx.getValue("/tables/table[1]/name"));
          assertEquals(5, ctx.selectNodes("/tables/table[1]/fields/field").size());
          assertEquals("system", ctx.getValue("/tables/table[1]/@tableType"));
      }
  }