<body>
<script>

if (window.testRunner)
    testRunner.dumpAsText();

function main() {
    const string = 'Expected result';

    const map = new Map();
    map.set('free', string);

    map.set('tmp', {
        get a() {
            map.delete('free');
            map.set('free', 0x1234);

            for (let i = 0; i < 0x10; i++)
                map.set('gc1_' + i, new ArrayBuffer(1024 * 1024 * 0x10));

            for (let i = 0; i < 0x2000; i++)
                map.set('gc2_' + i, new Date());

            map.set('expected', string);
        }
    });

    const result = structuredClone(map);

    if (result.get('expected') != "Expected result")
        console.log("FAIL");
    else
        console.log("PASS");
}

main();
</script>
</body>