/*
 * MIT License
 *
 * Copyright (c) 2002-2023 Mikko Tommila
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package org.apfloat;

import java.util.List;
import java.util.ArrayList;
import java.util.Map;

import junit.framework.TestCase;
import junit.framework.TestSuite;

/**
 * @since 1.6
 * @version 1.9.0
 * @author Mikko Tommila
 */

public class ConcurrentSoftHashMapTest
    extends TestCase
{
    public ConcurrentSoftHashMapTest(String methodName)
    {
        super(methodName);
    }

    public static void main(String[] args)
    {
        junit.textui.TestRunner.run(suite());
    }

    public static TestSuite suite()
    {
        TestSuite suite = new TestSuite();

        suite.addTest(new ConcurrentSoftHashMapTest("testSoft"));

        return suite;
    }

    public static void testSoft()
    {
        Map<Integer, byte[]> map = new ConcurrentSoftHashMap<>();

        final int SIZE = 1000000;

        byte[] value = new byte[4 * SIZE];
        map.put(1, value);
        assertEquals("Size after put", 1, map.size());
        assertNotNull("Value", map.get(1));
        value = null;

        // Force out of memory
        try
        {
            List<byte[]> dummy = new ArrayList<>();
            for (int i = 2; i < 1000000000 && map.get(1) != null; i++)
            {
                dummy.add(new byte[SIZE]);
            }
        }
        catch (OutOfMemoryError oome)
        {
            // Should happen eventually
        }

        assertNull("Cleared", map.get(1));

        map.put(1, value);
        map.clear();
        assertNull("Explicitly cleared", map.get(1));

        assertNull("Removed", map.remove(1));

        try
        {
            map.entrySet();
        }
        catch (UnsupportedOperationException uoe)
        {
            // Ignore
        }
    }
}
