/*
    * 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.jdom2.Document;
  import org.jdom2.input.SAXBuilder;
  import org.junit.Test;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNotNull;
  
  public class JDomDependencyManagementTest {
      private SAXBuilder builder = new SAXBuilder();
  
      @Test
      public void testGetDependencies() throws Exception {
          String content = "<dependencyManamgement></dependencyManamgement>";
          Document document = builder.build(new StringReader(content));
          assertNotNull(new JDomDependencyManagement(document.getRootElement()).getDependencies());
          assertEquals(
                  0,
                  new JDomDependencyManagement(document.getRootElement())
                          .getDependencies()
                          .size());
  
          content = "<dependencyManamgement><dependencies/></dependencyManamgement>";
          document = builder.build(new StringReader(content));
          assertEquals(
                  0,
                  new JDomDependencyManagement(document.getRootElement())
                          .getDependencies()
                          .size());
  
          content = "<dependencyManamgement><dependencies><dependency/></dependencies></dependencyManamgement>";
          document = builder.build(new StringReader(content));
          assertEquals(
                  1,
                  new JDomDependencyManagement(document.getRootElement())
                          .getDependencies()
                          .size());
      }
  
      // All other methods throw UnsupportedOperationException
  
      @Test(expected = UnsupportedOperationException.class)
      public void testAddDependency() {
          new JDomDependencyManagement(null).addDependency(null);
      }
  
      @Test(expected = UnsupportedOperationException.class)
      public void testRemoveDependency() {
          new JDomDependencyManagement(null).addDependency(null);
      }
  
      @Test(expected = UnsupportedOperationException.class)
      public void testSetDependenciesListOfDependency() {
          new JDomDependencyManagement(null).setDependencies(null);
      }
  }