dist-javascript-algorithms-and-data-structures/dist/algorithms/math/is-power-of-two/__test__/isPowerOfTwo.test.js

Algorithms and data-structures implemented on JavaScript

"use strict";

var _isPowerOfTwo = _interopRequireDefault(require("../isPowerOfTwo"));

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

describe('isPowerOfTwo', () => {
  it('should check if the number is made by multiplying twos', () => {
    expect((0, _isPowerOfTwo.default)(-1)).toBe(false);
    expect((0, _isPowerOfTwo.default)(0)).toBe(false);
    expect((0, _isPowerOfTwo.default)(1)).toBe(true);
    expect((0, _isPowerOfTwo.default)(2)).toBe(true);
    expect((0, _isPowerOfTwo.default)(3)).toBe(false);
    expect((0, _isPowerOfTwo.default)(4)).toBe(true);
    expect((0, _isPowerOfTwo.default)(5)).toBe(false);
    expect((0, _isPowerOfTwo.default)(6)).toBe(false);
    expect((0, _isPowerOfTwo.default)(7)).toBe(false);
    expect((0, _isPowerOfTwo.default)(8)).toBe(true);
    expect((0, _isPowerOfTwo.default)(10)).toBe(false);
    expect((0, _isPowerOfTwo.default)(12)).toBe(false);
    expect((0, _isPowerOfTwo.default)(16)).toBe(true);
    expect((0, _isPowerOfTwo.default)(31)).toBe(false);
    expect((0, _isPowerOfTwo.default)(64)).toBe(true);
    expect((0, _isPowerOfTwo.default)(1024)).toBe(true);
    expect((0, _isPowerOfTwo.default)(1023)).toBe(false);
  });
});