diff2html/src/__tests__/utils-tests.ts

import { escapeForRegExp, unifyPath, hashCode } from '../utils';

describe('Utils', () => {
  describe('escapeForRegExp', () => {
    it('should escape markdown link text', () => {
      const result = escapeForRegExp('[Link](https://diff2html.xyz)');
      expect(result).toBe('\\[Link\\]\\(https:\\/\\/diff2html\\.xyz\\)');
    });
    it('should escape all dangerous characters', () => {
      const result = escapeForRegExp('-[]/{}()*+?.\\^$|');
      expect(result).toBe('\\-\\[\\]\\/\\{\\}\\(\\)\\*\\+\\?\\.\\\\\\^\\$\\|');
    });
  });

  describe('unifyPath', () => {
    it('should unify windows style path', () => {
      const result = unifyPath('\\Users\\Downloads\\diff.html');
      expect(result).toBe('/Users/Downloads/diff.html');
    });
  });

  describe('hashCode', () => {
    it('should create consistent hash for a text piece', () => {
      const string = '/home/diff2html/diff.html';
      expect(hashCode(string)).toEqual(hashCode(string));
    });
    it('should create different hash for different text pieces', () => {
      expect(hashCode('/home/diff2html/diff1.html')).not.toEqual(hashCode('/home/diff2html/diff2.html'));
    });
  });
});