gistfile1.txt

// countryNames.ts
import countryNames from './country-names.json';

export function getCommonCountryName(inputName: string): string | undefined {
  const normalizedInput = inputName.replace(/\s*\(the\)\s*/i, '').trim();
  return countryNames[normalizedInput] || undefined;
}


// countryNames.test.ts
import { describe, it, expect } from 'vitest';
import { getCommonCountryName } from './countryNames';

describe('getCommonCountryName', () => {
  it('should return "United Kingdom" for variants of United Kingdom', () => {
    expect(getCommonCountryName('United Kingdom')).toBe('United Kingdom');
    expect(getCommonCountryName('United Kingdom of Great Britain and Northern Ireland')).toBe('United Kingdom');
    expect(getCommonCountryName('United Kingdom (the)')).toBe('United Kingdom');
  });

  it('should return "Netherlands" for variants of Netherlands', () => {
    expect(getCommonCountryName('Netherlands')).toBe('Netherlands');
    expect(getCommonCountryName('Kingdom of the Netherlands')).toBe('Netherlands');
    expect(getCommonCountryName('Netherlands (the)')).toBe('Netherlands');
  });

  it('should return "United States" for variants of United States', () => {
    expect(getCommonCountryName('United States')).toBe('United States');
    expect(getCommonCountryName('United States of America')).toBe('United States');
    expect(getCommonCountryName('United States (the)')).toBe('United States');
  });
});