test/utils/UtilsTest.ts

   1 import expect from 'expect';
   2
   3 import Utils from '../../src/utils/Utils';
   4
   5 describe('Utils test suite', () => {
   6   it('Verify secureRandom()', () => {
   7     const random = Utils.secureRandom();
   8     expect(typeof random === 'number').toBe(true);
   9     expect(random).toBeGreaterThanOrEqual(0);
  10     expect(random).toBeLessThan(1);
  11   });
  12
  13   it('Verify getRandomInteger()', () => {
  14     const randomInteger = Utils.getRandomInteger();
  15     expect(Number.isSafeInteger(randomInteger)).toBe(true);
  16     expect(randomInteger).toBeGreaterThanOrEqual(0);
  17     expect(randomInteger).toBeLessThanOrEqual(Number.MAX_SAFE_INTEGER);
  18     expect(() => Utils.getRandomInteger(0, 1)).toThrowError(new RangeError('Invalid interval'));
  19     expect(() => Utils.getRandomInteger(-1)).toThrowError(new RangeError('Invalid interval'));
  20     expect(() => Utils.getRandomInteger(0, -1)).toThrowError(new RangeError('Invalid interval'));
  21   });
  22
  23   it('Verify getRandomFloat()', () => {
  24     const randomFloat = Utils.getRandomFloat();
  25     expect(typeof randomFloat === 'number').toBe(true);
  26     expect(randomFloat).toBeGreaterThanOrEqual(0);
  27     expect(randomFloat).toBeLessThanOrEqual(Number.MAX_VALUE);
  28     expect(() => Utils.getRandomFloat(0, 1)).toThrowError(new RangeError('Invalid interval'));
  29     expect(() => Utils.getRandomFloat(-1)).toThrowError(new RangeError('Invalid interval'));
  30     expect(() => Utils.getRandomFloat(0, -1)).toThrowError(new RangeError('Invalid interval'));
  31   });
  32
  33   it('Verify isIterable()', () => {
  34     expect(Utils.isIterable('')).toBe(false);
  35     expect(Utils.isIterable(' ')).toBe(true);
  36     expect(Utils.isIterable('test')).toBe(true);
  37     expect(Utils.isIterable(null)).toBe(false);
  38     expect(Utils.isIterable(undefined)).toBe(false);
  39     expect(Utils.isIterable(0)).toBe(false);
  40     expect(Utils.isIterable({})).toBe(false);
  41     expect(Utils.isIterable({ 1: 1 })).toBe(false);
  42     expect(Utils.isIterable([])).toBe(true);
  43     expect(Utils.isIterable(new Map())).toBe(true);
  44     expect(Utils.isIterable(new Set())).toBe(true);
  45     expect(Utils.isIterable(new WeakMap())).toBe(false);
  46     expect(Utils.isIterable(new WeakSet())).toBe(false);
  47   });
  48
  49   it('Verify isEmptyString()', () => {
  50     expect(Utils.isEmptyString('')).toBe(true);
  51     expect(Utils.isEmptyString(' ')).toBe(true);
  52     expect(Utils.isEmptyString('     ')).toBe(true);
  53     expect(Utils.isEmptyString('test')).toBe(false);
  54     expect(Utils.isEmptyString(' test')).toBe(false);
  55     expect(Utils.isEmptyString('test ')).toBe(false);
  56     expect(Utils.isEmptyString(null)).toBe(false);
  57     expect(Utils.isEmptyString(undefined)).toBe(false);
  58     expect(Utils.isEmptyString(0)).toBe(false);
  59     expect(Utils.isEmptyString({})).toBe(false);
  60     expect(Utils.isEmptyString([])).toBe(false);
  61     expect(Utils.isEmptyString(new Map())).toBe(false);
  62     expect(Utils.isEmptyString(new Set())).toBe(false);
  63   });
  64
  65   it('Verify isNullOrUndefined()', () => {
  66     expect(Utils.isNullOrUndefined(null)).toBe(true);
  67     expect(Utils.isNullOrUndefined(undefined)).toBe(true);
  68     expect(Utils.isNullOrUndefined('')).toBe(false);
  69     expect(Utils.isNullOrUndefined(0)).toBe(false);
  70     expect(Utils.isNullOrUndefined({})).toBe(false);
  71     expect(Utils.isNullOrUndefined([])).toBe(false);
  72     expect(Utils.isNullOrUndefined(new Map())).toBe(false);
  73     expect(Utils.isNullOrUndefined(new Set())).toBe(false);
  74   });
  75
  76   it('Verify isEmptyArray()', () => {
  77     expect(Utils.isEmptyArray([])).toBe(true);
  78     expect(Utils.isEmptyArray([1, 2])).toBe(false);
  79     expect(Utils.isEmptyArray(null)).toBe(false);
  80     expect(Utils.isEmptyArray(undefined)).toBe(false);
  81     expect(Utils.isEmptyArray('')).toBe(false);
  82     expect(Utils.isEmptyArray(0)).toBe(false);
  83     expect(Utils.isEmptyArray({})).toBe(false);
  84     expect(Utils.isEmptyArray(new Map())).toBe(false);
  85     expect(Utils.isEmptyArray(new Set())).toBe(false);
  86   });
  87
  88   it('Verify isEmptyObject()', () => {
  89     expect(Utils.isEmptyObject({})).toBe(true);
  90     expect(Utils.isEmptyObject(null)).toBe(false);
  91     expect(Utils.isEmptyObject(undefined)).toBe(false);
  92     expect(Utils.isEmptyObject(new Map())).toBe(false);
  93     expect(Utils.isEmptyObject(new Set())).toBe(false);
  94     expect(Utils.isEmptyObject({ 1: 1, 2: 2 })).toBe(false);
  95   });
  96 });