src/test/java/org/apache/commons/beanutils2/bugs/Jira381Test.java

/*
 * 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
 *
 *      https://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.commons.beanutils2.bugs;

import static org.junit.jupiter.api.Assertions.assertEquals;

import java.lang.reflect.Method;

import org.apache.commons.beanutils2.MethodUtils;
import org.junit.jupiter.api.Test;

/**
 * MethodUtils's getMatchingAccessibleMethod() does not correctly handle inheritance and method overloading.
 *
 * @see <a href="https://issues.apache.org/jira/browse/BEANUTILS-381">https://issues.apache.org/jira/browse/BEANUTILS-381</a>
 */
class Jira381Test {

    /**
     * Test object.
     */
    public class TestObject {
    }

    /**
     * Used to match performop with test object
     */
    public class TestObjectSubclass extends TestObject {
    }

    /**
     * Test bean.
     */
    public class TestServiceBean {

        /**
         * Generic object method
         */
        public void performOp(final Object o) {
        }

        /**
         * Object method
         */
        public void performOp(final TestObject o) {
        }
    }

    /**
     * Test with an private class that overrides a public method of a "grand parent" public class.
     * <p />
     * See Jira issue# BEANUTILS-381.
     */
    @Test
    void testIssue_BEANUTILS_381_getMatchingAccessibleMethod() {
        final Class<?> target = TestServiceBean.class;
        final String methodName = "performOp";
        final Class<?>[] runtimeClasses = { TestObjectSubclass.class };
        final Method returned = MethodUtils.getMatchingAccessibleMethod(target, methodName, runtimeClasses);
        assertEquals(target, returned.getDeclaringClass());
        assertEquals(methodName, returned.getName());
        assertEquals(TestObject.class, returned.getParameterTypes()[0]);
    }
}