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.commons.internal.reflection;
  
  import java.lang.reflect.Method;
  import java.util.Collection;
  import java.util.List;
  
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertNotEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import org.springframework.util.ReflectionUtils;
  
  class ReflectTest {
  
      static class Parent {
          // method a
          Object getSomething(final Collection<String> input){
              return 10;
          }
      }
  
      static class Child extends Parent {
  
          // method b
          @Override
          Integer getSomething(final Collection<String> input) {
              return 10;
          }
  
          // method c
          Integer getSomething(final List<String> input) {
              return 10;
          }
  
      }
  
      static class Outer{
          class NonStaticInner {
              public void nonStaticInnerMethod() {}
          }
          static class StaticInner {
              public void staticInnerMethod() {}
          }
      }
  
      Method a, b, c;
      Method nonStaticInnerMethod, staticInnerMethod;
  
      @BeforeEach
      void setUp() throws Exception {
  
          // given
  
          a = ReflectionUtils.findMethod(Parent.class, "getSomething", new Class[] {Collection.class});
          b = ReflectionUtils.findMethod(Child.class, "getSomething", new Class[] {Collection.class});
          c = ReflectionUtils.findMethod(Child.class, "getSomething", new Class[] {List.class});
          nonStaticInnerMethod = ReflectionUtils
                  .findMethod(Outer.NonStaticInner.class, "nonStaticInnerMethod", new Class[] {});
          staticInnerMethod = ReflectionUtils
                  .findMethod(Outer.StaticInner.class, "staticInnerMethod", new Class[] {});
  
          assertNotNull(a);
          assertNotNull(b);
          assertNotNull(c);
          assertNotNull(nonStaticInnerMethod);
          assertNotNull(staticInnerMethod);
  
          assertNotEquals(a, b);
          assertNotEquals(a, c);
          assertNotEquals(b, c);
      }
  
      @Test
      void methodSameness() {
          assertTrue(_Reflect.methodsSame(a, b));
          assertFalse(_Reflect.methodsSame(a, c));
      }
  
      @Test
      void methodWeakOrdering() {
          assertTrue(_Reflect.methodWeakCompare(a, b) == 0);
          assertTrue(_Reflect.methodWeakCompare(a, c) != 0);
      }
  
      @Test
      void methodIsInner() {
          assertTrue(_Reflect.isNonStaticInnerMethod(nonStaticInnerMethod));
          assertFalse(_Reflect.isNonStaticInnerMethod(staticInnerMethod));
      }
  
  }
  