import { Calendar } from "./calendar";

describe("The calendar class", () => {
  describe("isolated tests", () => {
    let obj: Calendar;
    beforeEach(() => {
      obj = new Calendar();
    });

    it("tests weekStartDate", () => {
      const date = new Date("01/01/2018");
      const weekStartDate = obj.weekStartDate(date);
      expect(weekStartDate.getMonth()).toBe(11); //december, 0-based
      expect(weekStartDate.getDate()).toBe(31);
      expect(weekStartDate.getFullYear()).toBe(2017);
    });

    it("tests monthDates", () => {
      const monthDates = obj.monthDates(
        2018,
        0,
        (date) => {
          return date;
        },
        (date) => {
          return date;
        }
      );
      expect(monthDates[0][0].getMonth()).toBe(11); //december, 0-based
      expect(monthDates[0][0].getDate()).toBe(31);
      expect(monthDates[0][0].getFullYear()).toBe(2017);
    });

    it("tests monthDays", () => {
      const monthDays = obj.monthDays(2018, 0);
      expect(monthDays[0][0]).toBe(0);
    });

    it("tests monthText", () => {
      const monthText = obj.monthText(2018, 0);
      const expectedValue = `    1  2  3  4  5  6
 7  8  9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31         `;
      expect(monthText).toBe(expectedValue);
    });
  });
});