content: /*
   * Copyright (C) 2012-2023 52°North Spatial Information Research GmbH
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 as published
   * by the Free Software Foundation.
   *
   * If the program is linked with libraries which are licensed under one of
   * the following licenses, the combination of the program with the linked
   * library is not considered a "derivative work" of the program:
   *
   *     - Apache License, version 2.0
   *     - Apache Software License, version 1.0
   *     - GNU Lesser General Public License, version 3
   *     - Mozilla Public License, versions 1.0, 1.1 and 2.0
   *     - Common Development and Distribution License (CDDL), version 1.0
   *
   * Therefore the distribution of the program linked with libraries licensed
   * under the aforementioned licenses, is permitted by the copyright holders
   * if the distribution is compliant with both the GNU General Public
   * License version 2 and the aforementioned licenses.
   *
   * This program is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
   * Public License for more details.
   */
  package org.n52.sos.request.operator;
  
  import java.util.ArrayList;
  import java.util.HashSet;
  import java.util.List;
  import java.util.Set;
  
  import org.hamcrest.MatcherAssert;
  import org.hamcrest.core.Is;
  import org.hamcrest.core.IsIterableContaining;
  import org.junit.Test;
  import org.mockito.ArgumentMatchers;
  import org.mockito.Mockito;
  import org.n52.sos.cache.SosContentCache;
  
  import com.google.common.collect.Lists;
  
  /**
   * @author <a href="mailto:e.h.juerrens@52north.org">Eike Hinderk
   *         J&uuml;rrens</a>
   *
   * @since 4.0.0
   */
  public class SosGetObservationOperatorV20Test {
      private static final String FEATURE = "feature";
  
      private static final String CHILD_FEATURE = "child-feature";
  
      @Test
      public void should_return_empty_list_for_bad_parameters() {
          final SosGetObservationOperatorV20 operator = Mockito.mock(SosGetObservationOperatorV20.class);
          Mockito.when(operator.addChildFeatures(ArgumentMatchers.anyCollection())).thenCallRealMethod();
  
          // null
          List<String> childFeatures = operator.addChildFeatures(null);
         MatcherAssert.assertThat(childFeatures.isEmpty(), Is.is(Boolean.TRUE));
  
          // empty list
          childFeatures = operator.addChildFeatures(new ArrayList<String>(0));
         MatcherAssert.assertThat(childFeatures.isEmpty(), Is.is(Boolean.TRUE));
      }
  
      @Test
      public void should_add_childs_for_features() {
          final SosGetObservationOperatorV20 operator = Mockito.mock(SosGetObservationOperatorV20.class);
          final SosContentCache cache = Mockito.mock(SosContentCache.class);
          final Set<String> myChildFeatures = new HashSet<String>(1);
          myChildFeatures.add(CHILD_FEATURE);
          Mockito.when(cache.getChildFeatures(ArgumentMatchers.anyString(), ArgumentMatchers.anyBoolean(), ArgumentMatchers.anyBoolean()))
                  .thenReturn(myChildFeatures);
          Mockito.when(operator.getCache()).thenReturn(cache);
          Mockito.when(operator.addChildFeatures(ArgumentMatchers.anyCollection())).thenCallRealMethod();
  
          final List<String> childFeatures = operator.addChildFeatures(Lists.newArrayList(FEATURE));
  
         MatcherAssert.assertThat(childFeatures.isEmpty(), Is.is(Boolean.FALSE));
         MatcherAssert.assertThat(childFeatures.size(), Is.is(2));
         MatcherAssert.assertThat(childFeatures, IsIterableContaining.hasItem(CHILD_FEATURE));
         MatcherAssert.assertThat(childFeatures, IsIterableContaining.hasItem(FEATURE));
      }
  
  }
  