src/test/java/org/apache/commons/lang3/function/MethodInvokersBiConsumerTest.java


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/*
 * 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.commons.lang3.function;

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

import java.lang.reflect.Method;
import java.util.function.BiConsumer;

import org.junit.jupiter.api.Test;

/**
 * Tests {@link MethodInvokers#asBiConsumer(Method)}.
 */
public class MethodInvokersBiConsumerTest extends MethodFixtures {

    @Test
    public void testApply1Arg() throws NoSuchMethodException, SecurityException {
        final BiConsumer<Object, Object> biConsumer = MethodInvokers.asBiConsumer(getMethodForSetString1Arg());
        biConsumer.accept(INSTANCE, "A");
        assertEquals("A", INSTANCE.getValue1());
        biConsumer.accept(INSTANCE, "B");
        assertEquals("B", INSTANCE.getValue1());
    }

    @Test
    public void testConstructorForNull() throws SecurityException {
        assertThrows(NullPointerException.class, () -> MethodInvokers.asBiConsumer(null));
    }

    @Test
    public void testToString() throws SecurityException, ReflectiveOperationException {
        // Should not blow up and must return _something_
        final BiConsumer<Object, Object> biConsumer = MethodInvokers.asBiConsumer(getMethodForSetString1Arg());
        assertFalse(biConsumer.toString().isEmpty());
        assertFalse(biConsumer.toString().isEmpty());
    }

}