/*
    * 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.maven.shared.release.transform.jdom2;
  
  import java.io.StringReader;
  
  import org.apache.maven.model.Model;
  import org.apache.maven.model.Scm;
  import org.jdom2.Document;
  import org.jdom2.Element;
  import org.jdom2.input.SAXBuilder;
  import org.junit.Test;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertNull;
  
  public class JDomModelTest {
      private SAXBuilder builder = new SAXBuilder();
  
      @Test
      public void testGetScm() throws Exception {
          String content = "<project></project>";
          Document document = builder.build(new StringReader(content));
          assertNull(new JDomModel(document).getScm());
      }
  
      @Test
      public void testSetScm() throws Exception {
          String content = "<project></project>";
          Document document = builder.build(new StringReader(content));
          Model model = new JDomModel(document);
          assertNull(model.getScm());
  
          model.setScm(new Scm());
          assertNotNull(model.getScm());
  
          model.setScm(null);
          assertNull(model.getScm());
      }
  
      @Test
      public void testSetVersion() throws Exception {
          String content = "<project></project>";
          Element projectElm = builder.build(new StringReader(content)).getRootElement();
          Model model = new JDomModel(projectElm);
          assertNull(model.getVersion());
  
          model.setVersion("VERSION");
          assertEquals("VERSION", getVersion(projectElm));
  
          model.setVersion(null);
          assertNull(model.getVersion());
  
          // inherit from parent
          // this business logic might need to moved.
          content = "<project><parent><version>PARENT_VERSION</version></parent></project>";
          projectElm = builder.build(new StringReader(content)).getRootElement();
          model = new JDomModel(projectElm);
          assertNull(model.getVersion());
  
          model.setVersion("PARENT_VERSION");
          assertNull(getVersion(projectElm));
  
          model.setVersion("VERSION");
          assertEquals("VERSION", getVersion(projectElm));
  
          model.setVersion(null);
          assertNull(model.getVersion());
      }
  
      private String getVersion(Element projectElm) {
          return projectElm.getChildText("version", projectElm.getNamespace());
      }
  }