dist-javascript-algorithms-and-data-structures/dist/algorithms/string/hamming-distance/__test__/hammingDistance.test.js

Algorithms and data-structures implemented on JavaScript

"use strict";

var _hammingDistance = _interopRequireDefault(require("../hammingDistance"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

describe('hammingDistance', () => {
  it('should throw an error when trying to compare the strings of different lengths', () => {
    const compareStringsOfDifferentLength = () => {
      (0, _hammingDistance.default)('a', 'aa');
    };

    expect(compareStringsOfDifferentLength).toThrowError();
  });
  it('should calculate difference between two strings', () => {
    expect((0, _hammingDistance.default)('a', 'a')).toBe(0);
    expect((0, _hammingDistance.default)('a', 'b')).toBe(1);
    expect((0, _hammingDistance.default)('abc', 'add')).toBe(2);
    expect((0, _hammingDistance.default)('karolin', 'kathrin')).toBe(3);
    expect((0, _hammingDistance.default)('karolin', 'kerstin')).toBe(3);
    expect((0, _hammingDistance.default)('1011101', '1001001')).toBe(2);
    expect((0, _hammingDistance.default)('2173896', '2233796')).toBe(3);
  });
});