import { describe, it, expect } from 'vitest';
import { validateIPV4 } from '../validateIp';

export const validIPs = [
  ['Private LAN', '192.168.1.1'],
  ['All zeros', '0.0.0.0'],
  ['Broadcast', '255.255.255.255'],
  ['Simple', '1.2.3.4'],
  ['Loopback', '127.0.0.1'],
];

export const invalidIPs = [
  ['Octet too large', '256.0.0.1'],
  ['Too few octets', '192.168.1'],
  ['Too many octets', '1.2.3.4.5'],
  ['Leading zero (1st octet)', '01.2.3.4'],
  ['Leading zero (2nd octet)', '1.02.3.4'],
  ['Leading zero (3rd octet)', '1.2.003.4'],
  ['Leading zero (4th octet)', '1.2.3.004'],
  ['Four digits in octet', '1.2.3.0004'],
  ['Trailing dot', '1.2.3.'],
];

describe('validateIPV4', () => {
  describe.each(validIPs)('Valid IP: %s', (_desc, ip) => {
    it(`returns {valid:true} for "${ip}"`, () => {
      const res = validateIPV4(ip);
      expect(res.valid).toBe(true);
    });
  });

  describe.each(invalidIPs)('Invalid IP: %s', (_desc, ip) => {
    it(`returns {valid:false for "${ip}"`, () => {
      const res = validateIPV4(ip);
      expect(res.valid).toBe(false);
    });
  });
});