QUnit.test('Treemap and updates', function (assert) {
    var chart = Highcharts.chart('container', {
            series: [
                {
                    type: 'treemap',
                    allowTraversingTree: true,
                    data: [
                        {
                            id: 'id_1',
                            name: 'A'
                        },
                        {
                            id: 'id_2',
                            name: 'A1',
                            value: 2,
                            parent: 'id_1'
                        },
                        {
                            id: 'id_3',
                            name: 'A2',
                            value: 2,
                            parent: 'id_1'
                        },
                        {
                            name: 'B',
                            value: 6
                        }
                    ]
                }
            ]
        }),
        series = chart.series[0];

    series.update({
        data: [
            {
                id: 'id_1',
                name: 'A'
            },
            {
                id: 'id_2',
                name: 'A1',
                value: 10,
                parent: 'id_1'
            },
            {
                id: 'id_3',
                name: 'A2',
                value: 12,
                parent: 'id_1'
            },
            {
                name: 'B',
                value: 6
            }
        ]
    });

    assert.strictEqual(
        chart.container.querySelectorAll('.highcharts-point').length,
        4,
        'All point-graphic elements exist in DOM (#11829)'
    );

    chart.series[0].setRootNode('id_1');
    chart.series[0].update({
        data: [{
            name: "K",
            value: 5
        }]
    });

    assert.ok(true, '#10159: Updating data while traversed down should not throw');
});
