flatpickr/src/__tests__/rangePlugin.spec.ts

A lightweight, powerful javascript datetime picker

import flatpickr from "index";
import rangePlugin from "plugins/rangePlugin";
import { Options } from "types/options";
import { Instance } from "types/instance";

type RangeInstance = Instance & {
  secondInput: HTMLInputElement;
};

flatpickr.defaultConfig.animate = false;

jest.useFakeTimers();

const createInstance = (config?: Options): Instance => {
  return flatpickr(
    document.createElement("input"),
    config as Options
  ) as Instance;
};

describe("rangePlugin", () => {
  it("should correctly preload defaultDate", () => {
    const secondInput = document.createElement("input");
    const fp = createInstance({
      plugins: [rangePlugin({ input: secondInput })],
      defaultDate: ["2017-10-20", "2017-10-25"],
      dateFormat: "Y-m-d",
    }) as RangeInstance;

    expect(fp.selectedDates.length).toEqual(2);
    expect(secondInput.value).toEqual("2017-10-25");
  });
});