import { describe, it, expect } from 'vitest';
import { Position } from './Position';

describe('Position', () => {
  it('should create position', () => {
    const position = Position.create(1);
    expect(position.toNumber()).toBe(1);
  });

  it('should not create zero position', () => {
    expect(() => Position.create(0)).toThrow('Position must be a positive integer');
  });

  it('should not create negative position', () => {
    expect(() => Position.create(-1)).toThrow('Position must be a positive integer');
  });

  it('should not create non-integer position', () => {
    expect(() => Position.create(1.5)).toThrow('Position must be a positive integer');
  });

  it('should equal same position', () => {
    const p1 = Position.create(2);
    const p2 = Position.create(2);
    expect(p1.equals(p2)).toBe(true);
  });

  it('should not equal different position', () => {
    const p1 = Position.create(2);
    const p2 = Position.create(3);
    expect(p1.equals(p2)).toBe(false);
  });
});