Function checkFill

test/jasmine/tests/scatter_test.js:916–920

(visible, msg)

        var trace2 = {y: [3, 4, 5, 6], fill: 'tonexty', mode: 'none'};

        function checkFill(visible, msg) {
            var fillSelection = d3Select(gd).selectAll('.scatterlayer .js-fill');
            expect(fillSelection.size()).toBe(1, msg);
            negateIf(visible, expect(fillSelection.attr('d'))).toBe('M0,0Z', msg);
        }

        Plotly.newPlot(gd, [trace0, trace1, trace2], {}, {scrollZoom: true})
        .then(function() {