Function nthChart

spec/scatter-plot-spec.js:482–505

(n)

        });

        function nthChart (n) {
            const subChart = d3.select(compositeChart.selectAll('g.sub').nodes()[n]);

            subChart.expectPlotSymbolsToHaveClass = function (className) {
                subChart.selectAll('path.symbol').each(function () {
                    expect(d3.select(this).classed(className)).toBeTruthy();
                });
            };

            subChart.expectPlotSymbolsToHaveSize = function (size) {
                const match = matchSymbolSize(size);
                subChart.selectAll('path.symbol').each(function () {
                    expect(match.apply(this)).toBeTruthy();
                });
            };

            subChart.expectPlotSymbolsNotToHaveClass = function (className) {
                subChart.selectAll('path.symbol').each(function () {
                    expect(d3.select(this).classed(className)).toBeFalsy();
                });
            };

            return subChart;
        }
    });
    describe('with ordinal axes', () => {
        beforeEach(() => {