@d3fc/d3fc-series/test/baseSpec.js

A collection of components for rendering data series to SVG and canvas, including line, bar, OHLC, candlestick and more

import * as fc from '../index';

describe('xScale', () => {

    let svgSeries;

    beforeEach(() => (svgSeries = getSvgSeries()));

    it('should default to scaleIdentity', () => {
        svgSeries.forEach(series => {
            expect(series.xScale()(1)).toBe(1);
            expect(series.xScale()(2)).toBe(2);
        });
    });

    it('can be overridden', () => {
        const xScale = x => x === 1 ? -1 : x;
        svgSeries.forEach(series => {
            series.xScale(xScale);
            expect(series.xScale()(1)).toBe(-1);
            expect(series.xScale()(2)).toBe(2);
        });
    });

});

describe('yScale', () => {

    let svgSeries;

    beforeEach(() => (svgSeries = getSvgSeries()));

    it('should default to scaleIdentity', () => {
        svgSeries.forEach(series => {
            expect(series.yScale()(1)).toBe(1);
            expect(series.yScale()(2)).toBe(2);
        });
    });

    it('can be overridden', () => {
        const yScale = x => x === 1 ? -1 : x;
        svgSeries.forEach(series => {
            series.yScale(yScale);
            expect(series.yScale()(1)).toBe(-1);
            expect(series.yScale()(2)).toBe(2);
        });
    });

});

function getSvgSeries() {
    return [
        fc.seriesSvgArea(),
        fc.seriesSvgBar(),
        fc.seriesSvgBoxPlot(),
        fc.seriesSvgCandlestick(),
        fc.seriesSvgErrorBar(),
        fc.seriesSvgLine(),
        fc.seriesSvgMulti(),
        fc.seriesSvgOhlc(),
        fc.seriesSvgPoint()
    ];
}