function evenOrOdd (number: number): string {
  //
};

if (import.meta.vitest) {
  test("1. very easy - even or odd", () => {
    expect(evenOrOdd(1)).toBe('odd');
    expect(evenOrOdd(2)).toBe('even');
    expect(evenOrOdd(-3)).toBe('odd');
    expect(evenOrOdd(5920295712029)).toBe('odd');
  });
}