test/jdk/java/util/concurrent/CopyOnWriteArraySet/SerializationTest.java - master - githubmirror/jdk21u

test/jdk/java/util/concurrent/CopyOnWriteArraySet/SerializationTest.java
84 строки3 KB
Aleksei Voitylov
8365058: Enhance CopyOnWriteArraySet
14 янв 2026, 19:46
14 янв 2026, 19:46ef1e33f
/*
 * Copyright (c) 2025, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * @test
 * @bug 8365058
 * @summary Check basic correctness of de-serialization
 * @run junit SerializationTest
 */

import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.MethodSource;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.List;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArraySet;
import java.util.stream.Stream;

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

public class SerializationTest {

    // Ensure basic serialization round trip correctness
    @ParameterizedTest
    @MethodSource
    void roundTripTest(CopyOnWriteArraySet<?> expected) {
        var bytes = ser(expected);
        var actual = deSer(bytes);
        assertEquals(CopyOnWriteArraySet.class, actual.getClass());
        assertEquals(expected, actual);
    }

    private static Stream<CopyOnWriteArraySet<?>> roundTripTest() {
        return Stream.of(
                new CopyOnWriteArraySet<>(),
                new CopyOnWriteArraySet<>(List.of(1, 2, 3)),
                new CopyOnWriteArraySet<>(Set.of("Foo", "Bar", "Baz"))
        );
    }

    private static byte[] ser(Object obj) {
        return assertDoesNotThrow(() -> {
            try (ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
                 ObjectOutputStream oos = new ObjectOutputStream(byteArrayOutputStream)) {
                oos.writeObject(obj);
                return byteArrayOutputStream.toByteArray();
            }
        }, "Unexpected error during serialization");
    }

    private static Object deSer(byte[] bytes) {
        return assertDoesNotThrow(() -> {
            try (ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(bytes);
                 ObjectInputStream ois = new ObjectInputStream(byteArrayInputStream)) {
                return ois.readObject();
            }
        }, "Unexpected error during de-serialization");
    }
}