conference-room-booking-system/frontend/src/__tests__/helpers/booking.test.ts

import {
  getEditBookingRoomId,
  formatBookingError,
} from "../../helpers/booking";
describe("booking helpers", () => {
  function rollingIso(hours: number) {
    return new Date(Date.now() + hours * 3600 * 1000).toISOString();
  }
  it("extracts room id from booking", () => {
    expect(
      getEditBookingRoomId({
        id: "b1",
        room_id: "42",
        start_time: rollingIso(1),
        end_time: rollingIso(2),
      })
    ).toBe("42");
    expect(getEditBookingRoomId(null)).toBe("");
  });

  it("formats booking errors: overlap", () => {
    expect(formatBookingError("Overlap detected")).toMatch(/already booked/);
  });

  it("formats booking errors: capacity", () => {
    expect(formatBookingError("Room capacity exceeded")).toMatch(
      /exceeds the room's capacity/
    );
  });

  it("formats booking errors: attendee", () => {
    expect(formatBookingError("Too many attendees")).toMatch(
      /exceeds the room's capacity/
    );
  });

  it("formats booking errors: empty string", () => {
    expect(formatBookingError("")).toBe("An unknown error occurred.");
  });

  it("formats booking errors: other", () => {
    expect(formatBookingError("Room unavailable")).toMatch(/Room unavailable/);
  });
});