/*
    * Copyright 2009 the original author or authors.
    * 
    * Licensed 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.openehealth.ipf.commons.ihe.xds.core.metadata;
  
  import org.junit.Before;
  import org.junit.Test;
  import org.openehealth.ipf.commons.ihe.xds.core.transform.ebxml.DocumentEntryTransformerTestBase;
  
  import java.util.Collections;
  
  import static org.junit.Assert.assertEquals;
  
  /**
   * Tests for {@link DocumentEntry}.
   * Note that most of the accessors of {@code DocumentEntry} are tested via
   * the tests of its transformer {@link DocumentEntryTransformerTestBase}.
   */
  public class DocumentEntryTest {
      private Author author1;
      private Author author2;
      private Author author3;
      private DocumentEntry docEntry;
  
      @Before
      public void setUp() {
          author1 = new Author();
          author2 = new Author();
          author3 = new Author();
          docEntry = new DocumentEntry();
      }
  
      @Test
      public void testSetAuthorResetsAuthorList() {
          docEntry.getAuthors().add(author1);
          docEntry.getAuthors().add(author2);
          docEntry.setAuthor(author3);
          assertEquals(Collections.singletonList(author3), docEntry.getAuthors());
      }
  
      @Test
      public void testGetAuthorOnEmptyAuthorList() {
          assertEquals(null, docEntry.getAuthor());
      }
      
      @Test
      public void testGetAuthorOnAuthorListContainingMultipleAuthors() {
          docEntry.getAuthors().add(author1);
          docEntry.getAuthors().add(author2);
          assertEquals(author1, docEntry.getAuthor());
      }
  }