frame.test.js

const Frame = require("./frame");

describe("Frame", () => {
  beforeEach(() => {
    frame = new Frame();
  });

  describe("Rolls", () => {
    it("should start with no rolls", () => {
      expect(frame.rolls()).toEqual(0);
    });

    it("should know how many rolls have been rolled", () => {
      frame.addRoll(2);
      expect(frame.rolls()).toEqual(1);
    });
  });

  describe("Strike", () => {
    it("should know if the frame is not a strike", () => {
      frame.addRoll(2);
      frame.addRoll(8);
      expect(frame.isStrike()).toEqual(false);
    });

    it("should know if the frame is a strike", () => {
      frame.addRoll(10);
      expect(frame.isStrike()).toEqual(true);
    });
  });

  describe("Spare", () => {
    it("should know if the frame is not a spare", () => {
      frame.addRoll(2);
      frame.addRoll(2);
      expect(frame.isSpare()).toEqual(false);
    });

    it("should know if the frame is a spare", () => {
      frame.addRoll(2);
      frame.addRoll(8);
      expect(frame.isSpare()).toEqual(true);
    });
  });

  it("should know how many pins were taken down in the first roll", () => {
    frame.addRoll(2);
    expect(frame.firstRoll()).toEqual(2);
  });

  it("should know how many pins were taken down in the second roll", () => {
    frame.addRoll(2);
    frame.addRoll(3);
    expect(frame.secondRoll()).toEqual(3);
  });

  it("should know how many pins were taken down in the bonus roll", () => {
    frame.addRoll(2);
    frame.addRoll(8);
    frame.addRoll(3);
    expect(frame.bonusRoll()).toEqual(3);
  });
});