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   *  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,
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   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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   *  specific language governing permissions and limitations
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   */
  package org.apache.causeway.applib.spec;
  
  import org.junit.jupiter.api.Test;
  
  import static org.hamcrest.CoreMatchers.is;
  import static org.hamcrest.CoreMatchers.not;
  import static org.hamcrest.CoreMatchers.nullValue;
  import static org.hamcrest.MatcherAssert.assertThat;
  
  import org.apache.causeway.applib.services.i18n.TranslatableString;
  import org.apache.causeway.applib.spec.AbstractSpecification2.Nullability;
  import org.apache.causeway.applib.spec.AbstractSpecification2.TypeChecking;
  
  class AbstractSpecification2Test {
  
      private AbstractSpecification2<String> specAbstractSomeDomainObject;
  
      @Test
      public void shouldSatisfyByDefaultForNull() {
          specAbstractSomeDomainObject = new AbstractSpecification2<String>() {
              @Override
              public TranslatableString satisfiesTranslatableSafely(final String obj) {
                  return null;
              }
          };
          assertThat(specAbstractSomeDomainObject.satisfiesTranslatable(null), is(nullValue()));
      }
  
      @Test
      public void shouldNotSatisfyForNullIfConfiguredAsSuch() {
          specAbstractSomeDomainObject = new AbstractSpecification2<String>(Nullability.ENSURE_NOT_NULL, TypeChecking.IGNORE_INCORRECT_TYPE) {
              @Override
              public TranslatableString satisfiesTranslatableSafely(final String obj) {
                  return null;
              }
          };
          assertThat(specAbstractSomeDomainObject.satisfiesTranslatable(null), is(not(nullValue())));
      }
  
      @Test
      public void shouldSatisfyByDefaultForIncorrectType() {
          specAbstractSomeDomainObject = new AbstractSpecification2<String>() {
              @Override
              public TranslatableString satisfiesTranslatableSafely(final String obj) {
                  return null;
              }
          };
          assertThat(specAbstractSomeDomainObject.satisfiesTranslatable(Integer.valueOf(1)), is(nullValue()));
      }
  
      @Test
      public void shouldNotSatisfyForIncorrectTypeIfConfiguredAsSuch() {
          specAbstractSomeDomainObject = new AbstractSpecification2<String>(Nullability.IGNORE_IF_NULL, TypeChecking.ENSURE_CORRECT_TYPE) {
              @Override
              public TranslatableString satisfiesTranslatableSafely(final String obj) {
                  return null;
              }
          };
          assertThat(specAbstractSomeDomainObject.satisfiesTranslatable(Integer.valueOf(1)), is(not(nullValue())));
      }
  
      @Test
      public void shouldSatisfyForNonNullCorrectTypeIfConfiguredAsSuch() {
          specAbstractSomeDomainObject = new AbstractSpecification2<String>(Nullability.ENSURE_NOT_NULL, TypeChecking.ENSURE_CORRECT_TYPE) {
              @Override
              public TranslatableString satisfiesTranslatableSafely(final String obj) {
                  return null;
              }
          };
          assertThat(specAbstractSomeDomainObject.satisfiesTranslatable(new String()), is(nullValue()));
      }
  
  }
  