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.cassandra.config;
  
  import org.junit.Test;
  
  import com.fasterxml.jackson.annotation.JsonIgnore;
  import org.yaml.snakeyaml.introspector.FieldProperty;
  import org.yaml.snakeyaml.introspector.MethodProperty;
  import org.yaml.snakeyaml.introspector.Property;
  
  import static org.assertj.core.api.Assertions.assertThat;
  
  public class DefaultLoaderTest
  {
      private static final DefaultLoader LOADER = new DefaultLoader();
  
      // field, no getter, no setter -> Example0
      // field, no/ignored getter, setter -> Example1 && Example5
      // field, getter, no/ignored setter -> Example3 && Example4
      // field, getter, setter -> Example2
  
      // no field, no getter, setter -> Example9 && Example10
      // no field, getter, no/ignored setter -> Example7 && Example8
      // no field, getter, setter -> Example6
  
      @Test
      public void fieldPresentWithoutGetterOrSetter()
      {
          // when the field is present and no getter, then the field property is used
          assertThat(get(Example0.class, "first")).isInstanceOf(FieldProperty.class);
      }
  
      @Test
      public void fieldPresentWithoutGetter()
      {
          // when the field is present and no getter, then the field property is used
          assertThat(get(Example1.class, "first")).isInstanceOf(FieldProperty.class);
          assertThat(get(Example5.class, "first")).isInstanceOf(FieldProperty.class);
      }
  
      @Test
      public void fieldPresentWithGetter()
      {
          // if setter/getter present, methods take precendents over field
          assertThat(get(Example2.class, "first")).isInstanceOf(MethodProperty.class);
      }
  
      @Test
      public void fieldPresentWithoutSetter()
      {
          assertThat(get(Example3.class, "first")).isInstanceOf(FieldProperty.class);
          assertThat(get(Example4.class, "first")).isInstanceOf(FieldProperty.class);
      }
  
      @Test
      public void noFieldWithGetterAndSetter()
      {
          assertThat(get(Example6.class, "first")).isInstanceOf(MethodProperty.class);
      }
  
      @Test
      public void noFieldWithGetterAndNoSetter()
      {
          assertThat(get(Example7.class, "first")).isNull();
          assertThat(get(Example8.class, "first")).isNull();
      }
  
      @Test
      public void noFieldWithoutGetterAndWithSetter()
      {
          assertThat(get(Example9.class, "first")).isInstanceOf(MethodProperty.class);
          assertThat(get(Example10.class, "first")).isInstanceOf(MethodProperty.class);
      }
  
      private static Property get(Class<?> klass, String name)
      {
          return LOADER.getProperties(klass).get(name);
      }
  
      public static class Example0
      {
          public int first;
      }
  
      public static class Example1
      {
          public int first;
  
          public void setFirst(int first)
          {
              this.first = first;
          }
      }
  
      public static class Example2
      {
          public int first;
  
          public void setFirst(int first)
          {
              this.first = first;
          }
  
          public int getFirst()
          {
              return first;
          }
      }
  
      public static class Example3
      {
          public int first;
  
          public int getFirst()
          {
              return first;
          }
      }
  
      public static class Example4
      {
          public int first;
  
          @JsonIgnore
          public void setFirst(int first)
          {
              this.first = first;
          }
  
          public int getFirst()
          {
              return first;
          }
      }
  
      public static class Example5
      {
          public int first;
  
          public void setFirst(int first)
          {
              this.first = first;
          }
  
          @JsonIgnore
          public int getFirst()
          {
              return first;
          }
      }
  
      public static class Example6
      {
          public int getFirst()
          {
              return 42;
          }
  
          public void setFirst(int first)
          {
              // no-op
          }
      }
  
      public static class Example7
      {
          public int getFirst()
          {
              return 42;
          }
      }
  
      public static class Example8
      {
          public int getFirst()
          {
              return 42;
          }
  
          @JsonIgnore
          public void setFirst(int first)
          {
              // no-op
          }
      }
  
      public static class Example9
      {
          public void setFirst(int first)
          {
              // no-op
          }
      }
  
      public static class Example10
      {
          @JsonIgnore
          public int getFirst()
          {
              return 42;
          }
  
          public void setFirst(int first)
          {
              // no-op
          }
      }
  }