/*
 * Copyright (c) 2013, 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.
 *
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package test.java.util.LinkedHashMap;

import java.util.*;

import org.testng.Assert;
import org.testng.annotations.Test;

/**
 * @test
 * @bug 8030016
 * @summary computeIfAbsent would generate spurious access
 */
public class ComputeIfAbsentAccessOrder {

    @Test
    public void testComputeIfAbsent() {
        LinkedHashMap<String,Object> map = new LinkedHashMap<>(2, 0.75f, true);
        map.put("first", null);
        map.put("second", null);

        map.computeIfAbsent("first", l -> null); // should do nothing

        Optional<String> key = map.keySet().stream()
                .findFirst();
        Assert.assertFalse(key.isEmpty());
        Assert.assertTrue("first".equals(key.get()));
    }
}