import { Country } from '../../data/countries';

import { groupCountriesByPrefix } from '.';

const countries = [
  {
    name: 'Canada',
    iso2: 'CA',
    iso3: 'CAN',
    phone: '+1',
  },
  {
    name: 'United States of America',
    iso2: 'US',
    iso3: 'USA',
    phone: '+1',
  },
  {
    name: 'United States Minor Outlying Islands',
    iso2: 'UM',
    iso3: 'UMI',
    phone: '+1',
  },
  {
    name: 'United Kingdom',
    iso2: 'GB',
    iso3: 'GBR',
    phone: '+44',
  },
  {
    name: 'Guernsey',
    iso2: 'GG',
    iso3: 'GGY',
    phone: '+44',
  },
  {
    name: 'Guinea',
    iso2: 'GN',
    iso3: 'GIN',
    phone: '+224',
  },
];

const groupedCountries = new Map<string, Country[]>([
  [
    '+1',
    [
      {
        name: 'Canada',
        iso2: 'CA',
        iso3: 'CAN',
        phone: '+1',
      },
      {
        name: 'United States of America',
        iso2: 'US',
        iso3: 'USA',
        phone: '+1',
      },
      {
        name: 'United States Minor Outlying Islands',
        iso2: 'UM',
        iso3: 'UMI',
        phone: '+1',
      },
    ],
  ],
  [
    '+44',
    [
      {
        name: 'United Kingdom',
        iso2: 'GB',
        iso3: 'GBR',
        phone: '+44',
      },
      {
        name: 'Guernsey',
        iso2: 'GG',
        iso3: 'GGY',
        phone: '+44',
      },
    ],
  ],
  [
    '+224',
    [
      {
        name: 'Guinea',
        iso2: 'GN',
        iso3: 'GIN',
        phone: '+224',
      },
    ],
  ],
]);

describe('groupCountriesByPrefix', () => {
  it('groups countries by prefix', () => {
    expect(groupCountriesByPrefix(countries)).toStrictEqual(groupedCountries);
  });
});