src/test/java/org/apache/commons/codec/binary/AbstractBaseNOutputStreamTest.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.codec.binary;

import java.io.IOException;
import java.io.OutputStream;

import org.junit.jupiter.api.Test;

/**
 * Abstract class for {@link BaseNCodecOutputStream} and its subclasses.
 */
abstract class AbstractBaseNOutputStreamTest {

    abstract OutputStream newOutputStream();

    @Test
    void testClose() throws IOException {
        try (OutputStream out = newOutputStream()) {
            out.close();
            out.close();
        } // closes a third time, which should be a no-op
    }
}