content: /*
   *  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.causeway.testing.unittestsupport.applib.dom.sortedsets;
  
  import java.lang.reflect.Field;
  import java.util.Collection;
  import java.util.Set;
  import java.util.SortedSet;
  
  import static org.hamcrest.CoreMatchers.is;
  import static org.hamcrest.MatcherAssert.assertThat;
  
  import org.apache.causeway.commons.internal.reflection._Reflect;
  import org.apache.causeway.testing.unittestsupport.applib.dom.AbstractApplyToAllContractTest;
  
  import static org.apache.causeway.commons.internal.collections._Collections.toHashSet;
  import static org.apache.causeway.commons.internal.reflection._Reflect.withTypeAssignableTo;
  
  /**
   * @since 2.0 {@index}
   */
  public abstract class SortedSetsContractTestAbstract extends AbstractApplyToAllContractTest {
  
      protected SortedSetsContractTestAbstract(
              final String packagePrefix) {
          super();
      }
  
      @Override
      protected void applyContractTest(Class<?> entityType) {
          final Set<Field> collectionFields = _Reflect.streamAllFields(entityType, true)
                  .filter(withTypeAssignableTo(Collection.class))
                  .collect(toHashSet());
  
          for (Field collectionField : collectionFields) {
              try {
                  final String desc = desc(entityType, collectionField);
                  out.println("processing " + desc);
                  out.incrementIndent();
                  process(entityType, collectionField);
              } finally {
                  out.decrementIndent();
              }
          }
      }
  
      private void process(Class<?> entityType, Field collectionField) {
          assertThat(
                  desc(entityType, collectionField) + " must be a SortedSet",
                  _Reflect.withTypeAssignableTo(SortedSet.class).test(collectionField), is(true));
      }
  
      private String desc(Class<?> entityType, Field collectionField) {
          return entityType.getSimpleName() + "#" + collectionField.getName();
      }
  
  }
  