unqommented/lib/tests/generateId.unique.test.js

A Node.js utility that quickly identifies files with uncommented code in your codebase. Designed for developers who want to efficiently tell LLMs exactly which files need comments added.

require('qtests/setup');
const { test, expect, describe } = require('@jest/globals');
const utils = require('../utils');
const localVars = require('../../config/localVars');

describe('generateId uniqueness', () => {
  test('should produce unique hexadecimal ids', () => {
    const ids = new Set();
    for (let i = 0; i < 100; i += 1) {
      const id = utils.generateId();
      expect(id).toMatch(/^[a-f0-9]+$/);
      ids.add(id);
    }
    expect(ids.size).toBe(100);
  });

  test('should throw for non-integer length', () => {
    expect(() => utils.generateId(3.5)).toThrow(localVars.ERROR_MESSAGES.LENGTH_NOT_POSITIVE);
  });

  test('should throw for NaN length', () => {
    expect(() => utils.generateId(Number.NaN)).toThrow(localVars.ERROR_MESSAGES.LENGTH_NOT_POSITIVE);
  });
});