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 generateUUID()/validateUUID()', () => {
   7     const uuid = Utils.generateUUID();
   8     expect(uuid).toBeDefined();
   9     expect(uuid.length).toEqual(36);
  10     expect(Utils.validateUUID(uuid)).toBe(true);
  11     expect(Utils.validateUUID('abcdef00-0000-4000-0000-000000000000')).toBe(true);
  12     expect(Utils.validateUUID('')).toBe(false);
  13     // Shall invalidate Nil UUID
  14     expect(Utils.validateUUID('00000000-0000-0000-0000-000000000000')).toBe(false);
  15     expect(Utils.validateUUID('987FBC9-4BED-3078-CF07A-9141BA07C9F3')).toBe(false);
  16   });
  17
  18   it('Verify sleep()', async () => {
  19     const start = Date.now();
  20     await Utils.sleep(1000);
  21     const end = Date.now();
  22     expect(end - start).toBeGreaterThanOrEqual(1000);
  23   });
  24
  25   it('Verify secureRandom()', () => {
  26     const random = Utils.secureRandom();
  27     expect(typeof random === 'number').toBe(true);
  28     expect(random).toBeGreaterThanOrEqual(0);
  29     expect(random).toBeLessThan(1);
  30   });
  31
  32   it('Verify getRandomInteger()', () => {
  33     let randomInteger = Utils.getRandomInteger();
  34     expect(Number.isSafeInteger(randomInteger)).toBe(true);
  35     expect(randomInteger).toBeGreaterThanOrEqual(0);
  36     expect(randomInteger).toBeLessThanOrEqual(Number.MAX_SAFE_INTEGER);
  37     expect(() => Utils.getRandomInteger(0, 1)).toThrowError(new RangeError('Invalid interval'));
  38     expect(() => Utils.getRandomInteger(-1)).toThrowError(new RangeError('Invalid interval'));
  39     expect(() => Utils.getRandomInteger(0, -1)).toThrowError(new RangeError('Invalid interval'));
  40     randomInteger = Utils.getRandomInteger(2, 1);
  41     expect(randomInteger).toBeGreaterThanOrEqual(1);
  42     expect(randomInteger).toBeLessThanOrEqual(2);
  43   });
  44
  45   it('Verify getRandomFloat()', () => {
  46     let randomFloat = Utils.getRandomFloat();
  47     expect(typeof randomFloat === 'number').toBe(true);
  48     expect(randomFloat).toBeGreaterThanOrEqual(0);
  49     expect(randomFloat).toBeLessThanOrEqual(Number.MAX_VALUE);
  50     expect(() => Utils.getRandomFloat(0, 1)).toThrowError(new RangeError('Invalid interval'));
  51     expect(() => Utils.getRandomFloat(-1)).toThrowError(new RangeError('Invalid interval'));
  52     expect(() => Utils.getRandomFloat(0, -1)).toThrowError(new RangeError('Invalid interval'));
  53     randomFloat = Utils.getRandomFloat(Number.MAX_VALUE, 0, true);
  54     expect(randomFloat).toBeGreaterThanOrEqual(-Number.MAX_VALUE);
  55     expect(randomFloat).toBeLessThanOrEqual(Number.MAX_VALUE);
  56   });
  57
  58   it('Verify isIterable()', () => {
  59     expect(Utils.isIterable('')).toBe(false);
  60     expect(Utils.isIterable(' ')).toBe(true);
  61     expect(Utils.isIterable('test')).toBe(true);
  62     expect(Utils.isIterable(null)).toBe(false);
  63     expect(Utils.isIterable(undefined)).toBe(false);
  64     expect(Utils.isIterable(0)).toBe(false);
  65     expect(Utils.isIterable({})).toBe(false);
  66     expect(Utils.isIterable({ 1: 1 })).toBe(false);
  67     expect(Utils.isIterable([])).toBe(true);
  68     expect(Utils.isIterable(new Map())).toBe(true);
  69     expect(Utils.isIterable(new Set())).toBe(true);
  70     expect(Utils.isIterable(new WeakMap())).toBe(false);
  71     expect(Utils.isIterable(new WeakSet())).toBe(false);
  72   });
  73
  74   it('Verify isEmptyString()', () => {
  75     expect(Utils.isEmptyString('')).toBe(true);
  76     expect(Utils.isEmptyString(' ')).toBe(true);
  77     expect(Utils.isEmptyString('     ')).toBe(true);
  78     expect(Utils.isEmptyString('test')).toBe(false);
  79     expect(Utils.isEmptyString(' test')).toBe(false);
  80     expect(Utils.isEmptyString('test ')).toBe(false);
  81     expect(Utils.isEmptyString(null)).toBe(false);
  82     expect(Utils.isEmptyString(undefined)).toBe(false);
  83     expect(Utils.isEmptyString(0)).toBe(false);
  84     expect(Utils.isEmptyString({})).toBe(false);
  85     expect(Utils.isEmptyString([])).toBe(false);
  86     expect(Utils.isEmptyString(new Map())).toBe(false);
  87     expect(Utils.isEmptyString(new Set())).toBe(false);
  88     expect(Utils.isEmptyString(new WeakMap())).toBe(false);
  89     expect(Utils.isEmptyString(new WeakSet())).toBe(false);
  90   });
  91
  92   it('Verify isUndefined()', () => {
  93     expect(Utils.isUndefined(undefined)).toBe(true);
  94     expect(Utils.isUndefined(null)).toBe(false);
  95     expect(Utils.isUndefined('')).toBe(false);
  96     expect(Utils.isUndefined(0)).toBe(false);
  97     expect(Utils.isUndefined({})).toBe(false);
  98     expect(Utils.isUndefined([])).toBe(false);
  99     expect(Utils.isUndefined(new Map())).toBe(false);
 100     expect(Utils.isUndefined(new Set())).toBe(false);
 101     expect(Utils.isUndefined(new WeakMap())).toBe(false);
 102     expect(Utils.isUndefined(new WeakSet())).toBe(false);
 103   });
 104
 105   it('Verify isNullOrUndefined()', () => {
 106     expect(Utils.isNullOrUndefined(null)).toBe(true);
 107     expect(Utils.isNullOrUndefined(undefined)).toBe(true);
 108     expect(Utils.isNullOrUndefined('')).toBe(false);
 109     expect(Utils.isNullOrUndefined(0)).toBe(false);
 110     expect(Utils.isNullOrUndefined({})).toBe(false);
 111     expect(Utils.isNullOrUndefined([])).toBe(false);
 112     expect(Utils.isNullOrUndefined(new Map())).toBe(false);
 113     expect(Utils.isNullOrUndefined(new Set())).toBe(false);
 114     expect(Utils.isNullOrUndefined(new WeakMap())).toBe(false);
 115     expect(Utils.isNullOrUndefined(new WeakSet())).toBe(false);
 116   });
 117
 118   it('Verify isEmptyArray()', () => {
 119     expect(Utils.isEmptyArray([])).toBe(true);
 120     expect(Utils.isEmptyArray([1, 2])).toBe(false);
 121     expect(Utils.isEmptyArray(null)).toBe(true);
 122     expect(Utils.isEmptyArray(undefined)).toBe(true);
 123     expect(Utils.isEmptyArray('')).toBe(true);
 124     expect(Utils.isEmptyArray('test')).toBe(true);
 125     expect(Utils.isEmptyArray(0)).toBe(true);
 126     expect(Utils.isEmptyArray({})).toBe(true);
 127     expect(Utils.isEmptyArray(new Map())).toBe(true);
 128     expect(Utils.isEmptyArray(new Set())).toBe(true);
 129     expect(Utils.isEmptyArray(new WeakMap())).toBe(true);
 130     expect(Utils.isEmptyArray(new WeakSet())).toBe(true);
 131   });
 132
 133   it('Verify isEmptyObject()', () => {
 134     expect(Utils.isEmptyObject({})).toBe(true);
 135     expect(Utils.isEmptyObject({ 1: 1, 2: 2 })).toBe(false);
 136     expect(Utils.isEmptyObject(null)).toBe(false);
 137     expect(Utils.isEmptyObject(undefined)).toBe(false);
 138     expect(Utils.isEmptyObject(new Map())).toBe(false);
 139     expect(Utils.isEmptyObject(new Set())).toBe(false);
 140     expect(Utils.isEmptyObject(new WeakMap())).toBe(false);
 141     expect(Utils.isEmptyObject(new WeakSet())).toBe(false);
 142   });
 143 });