QUnit.test('General waterfall tests', function (assert) {
    var chart = Highcharts.chart('container', {
        chart: {
            type: 'waterfall'
        },
        series: [
            {
                minPointLength: 20,
                data: [
                    5,
                    0.0001,
                    null,
                    10,
                    -0.0001,
                    null,
                    0.0001,
                    null,
                    5,
                    { isSum: true }
                ]
            }
        ]
    });

    assert.ok(
        chart.series[0].points[chart.series[0].points.length - 1].shapeArgs.y,
        chart.yAxis[0].toPixels(20.0001),
        "MinPointLength doesn't influence data rendering (#6062)."
    );

    chart.series[0].update({
        data: [
            {
                y: null
            }
        ],
        stacking: 'normal'
    });

    assert.ok(1, 'No errors when stacking null points (#7667).');

    chart.series[0].update(
        {
            data: [
                -20,
                10,
                {
                    isIntermediateSum: true
                }
            ]
        },
        false
    );
    chart.addSeries({
        stacking: 'normal',
        data: [
            -20,
            50,
            {
                isIntermediateSum: true
            }
        ]
    });

    assert.ok(1, 'No errors when stacking starts from negative value (#2280)');

    chart.update(
        {
            series: [
                {
                    dataLabels: {
                        enabled: true,
                        inside: false
                    },
                    data: [-5.8, -5.3, -4, -2.7, -6.9]
                }
            ]
        },
        true,
        true
    );

    assert.ok(
        chart.series[0].points[0].dataLabel.attr('y') >=
            chart.series[0].points[0].plotY +
                chart.series[0].points[0].shapeArgs.height,
        'Label rendered below the point.'
    );
});
