test/utils/UtilsTest.ts

   1 import expect from 'expect';
   2
   3 import { Constants } from '../../src/utils/Constants';
   4 import { Utils } from '../../src/utils/Utils';
   5
   6 describe('Utils test suite', () => {
   7   it('Verify generateUUID()/validateUUID()', () => {
   8     const uuid = Utils.generateUUID();
   9     expect(uuid).toBeDefined();
  10     expect(uuid.length).toEqual(36);
  11     expect(Utils.validateUUID(uuid)).toBe(true);
  12     expect(Utils.validateUUID('abcdef00-0000-4000-0000-000000000000')).toBe(true);
  13     expect(Utils.validateUUID('')).toBe(false);
  14     // Shall invalidate Nil UUID
  15     expect(Utils.validateUUID('00000000-0000-0000-0000-000000000000')).toBe(false);
  16     expect(Utils.validateUUID('987FBC9-4BED-3078-CF07A-9141BA07C9F3')).toBe(false);
  17   });
  18
  19   it('Verify sleep()', async () => {
  20     const start = Date.now();
  21     await Utils.sleep(1000);
  22     const end = Date.now();
  23     expect(end - start).toBeGreaterThanOrEqual(1000);
  24   });
  25
  26   it('Verify convertToDate()', () => {
  27     expect(Utils.convertToDate(undefined)).toBe(undefined);
  28     expect(Utils.convertToDate(null)).toBe(null);
  29     const invalidDate = Utils.convertToDate('');
  30     expect(invalidDate instanceof Date && !isNaN(invalidDate.getTime())).toBe(false);
  31     expect(Utils.convertToDate(0)).toStrictEqual(new Date('1970-01-01T00:00:00.000Z'));
  32     const dateStr = '2020-01-01T00:00:00.000Z';
  33     let date = Utils.convertToDate(dateStr);
  34     expect(date).toBeInstanceOf(Date);
  35     expect(date).toStrictEqual(new Date(dateStr));
  36     date = Utils.convertToDate(new Date(dateStr));
  37     expect(date).toBeInstanceOf(Date);
  38     expect(date).toStrictEqual(new Date(dateStr));
  39   });
  40
  41   it('Verify convertToInt()', () => {
  42     expect(Utils.convertToInt(undefined)).toBe(0);
  43     expect(Utils.convertToInt(null)).toBe(0);
  44     expect(Utils.convertToInt(0)).toBe(0);
  45     const randomInteger = Utils.getRandomInteger();
  46     expect(Utils.convertToInt(randomInteger)).toEqual(randomInteger);
  47     expect(Utils.convertToInt('-1')).toBe(-1);
  48     expect(Utils.convertToInt('1')).toBe(1);
  49     expect(Utils.convertToInt('1.1')).toBe(1);
  50     expect(Utils.convertToInt('1.9')).toBe(1);
  51     expect(Utils.convertToInt('1.999')).toBe(1);
  52     expect(Utils.convertToInt(-1)).toBe(-1);
  53     expect(Utils.convertToInt(1)).toBe(1);
  54     expect(Utils.convertToInt(1.1)).toBe(1);
  55     expect(Utils.convertToInt(1.9)).toBe(1);
  56     expect(Utils.convertToInt(1.999)).toBe(1);
  57     expect(() => {
  58       Utils.convertToInt('NaN');
  59     }).toThrow('Cannot convert to integer: NaN');
  60   });
  61
  62   it('Verify convertToFloat()', () => {
  63     expect(Utils.convertToFloat(undefined)).toBe(0);
  64     expect(Utils.convertToFloat(null)).toBe(0);
  65     expect(Utils.convertToFloat(0)).toBe(0);
  66     const randomFloat = Utils.getRandomFloat();
  67     expect(Utils.convertToFloat(randomFloat)).toEqual(randomFloat);
  68     expect(Utils.convertToFloat('-1')).toBe(-1);
  69     expect(Utils.convertToFloat('1')).toBe(1);
  70     expect(Utils.convertToFloat('1.1')).toBe(1.1);
  71     expect(Utils.convertToFloat('1.9')).toBe(1.9);
  72     expect(Utils.convertToFloat('1.999')).toBe(1.999);
  73     expect(Utils.convertToFloat(-1)).toBe(-1);
  74     expect(Utils.convertToFloat(1)).toBe(1);
  75     expect(Utils.convertToFloat(1.1)).toBe(1.1);
  76     expect(Utils.convertToFloat(1.9)).toBe(1.9);
  77     expect(Utils.convertToFloat(1.999)).toBe(1.999);
  78     expect(() => {
  79       Utils.convertToFloat('NaN');
  80     }).toThrow('Cannot convert to float: NaN');
  81   });
  82
  83   it('Verify convertToBoolean()', () => {
  84     expect(Utils.convertToBoolean(undefined)).toBe(false);
  85     expect(Utils.convertToBoolean(null)).toBe(false);
  86     expect(Utils.convertToBoolean('true')).toBe(true);
  87     expect(Utils.convertToBoolean('false')).toBe(false);
  88     expect(Utils.convertToBoolean('TRUE')).toBe(true);
  89     expect(Utils.convertToBoolean('FALSE')).toBe(false);
  90     expect(Utils.convertToBoolean('1')).toBe(true);
  91     expect(Utils.convertToBoolean('0')).toBe(false);
  92     expect(Utils.convertToBoolean(1)).toBe(true);
  93     expect(Utils.convertToBoolean(0)).toBe(false);
  94     expect(Utils.convertToBoolean(true)).toBe(true);
  95     expect(Utils.convertToBoolean(false)).toBe(false);
  96     expect(Utils.convertToBoolean('')).toBe(false);
  97     expect(Utils.convertToBoolean('NoNBoolean')).toBe(false);
  98   });
  99
 100   it('Verify secureRandom()', () => {
 101     const random = Utils.secureRandom();
 102     expect(typeof random === 'number').toBe(true);
 103     expect(random).toBeGreaterThanOrEqual(0);
 104     expect(random).toBeLessThan(1);
 105   });
 106
 107   it('Verify getRandomInteger()', () => {
 108     let randomInteger = Utils.getRandomInteger();
 109     expect(Number.isSafeInteger(randomInteger)).toBe(true);
 110     expect(randomInteger).toBeGreaterThanOrEqual(0);
 111     expect(randomInteger).toBeLessThanOrEqual(Constants.MAX_RANDOM_INTEGER);
 112     expect(randomInteger).not.toEqual(Utils.getRandomInteger());
 113     randomInteger = Utils.getRandomInteger(0, -Constants.MAX_RANDOM_INTEGER);
 114     expect(randomInteger).toBeGreaterThanOrEqual(-Constants.MAX_RANDOM_INTEGER);
 115     expect(randomInteger).toBeLessThanOrEqual(0);
 116     expect(() => Utils.getRandomInteger(0, 1)).toThrowError(
 117       'The value of "max" is out of range. It must be greater than the value of "min" (1). Received 1'
 118     );
 119     expect(() => Utils.getRandomInteger(-1)).toThrowError(
 120       'The value of "max" is out of range. It must be greater than the value of "min" (0). Received 0'
 121     );
 122     expect(() => Utils.getRandomInteger(Constants.MAX_RANDOM_INTEGER + 1)).toThrowError(
 123       `The value of "max" is out of range. It must be <= ${
 124         Constants.MAX_RANDOM_INTEGER + 1
 125       }. Received 281_474_976_710_656`
 126     );
 127     randomInteger = Utils.getRandomInteger(2, 1);
 128     expect(randomInteger).toBeGreaterThanOrEqual(1);
 129     expect(randomInteger).toBeLessThanOrEqual(2);
 130     const max = 2.2,
 131       min = 1.1;
 132     randomInteger = Utils.getRandomInteger(max, min);
 133     expect(randomInteger).toBeGreaterThanOrEqual(Math.ceil(min));
 134     expect(randomInteger).toBeLessThanOrEqual(Math.floor(max));
 135   });
 136
 137   it('Verify getRandomFloat()', () => {
 138     let randomFloat = Utils.getRandomFloat();
 139     expect(typeof randomFloat === 'number').toBe(true);
 140     expect(randomFloat).toBeGreaterThanOrEqual(0);
 141     expect(randomFloat).toBeLessThanOrEqual(Number.MAX_VALUE);
 142     expect(randomFloat).not.toEqual(Utils.getRandomFloat());
 143     expect(() => Utils.getRandomFloat(0, 1)).toThrowError(new RangeError('Invalid interval'));
 144     expect(() => Utils.getRandomFloat(Number.MAX_VALUE, -Number.MAX_VALUE)).toThrowError(
 145       new RangeError('Invalid interval')
 146     );
 147     randomFloat = Utils.getRandomFloat(0, -Number.MAX_VALUE);
 148     expect(randomFloat).toBeGreaterThanOrEqual(-Number.MAX_VALUE);
 149     expect(randomFloat).toBeLessThanOrEqual(0);
 150   });
 151
 152   it('Verify isIterable()', () => {
 153     expect(Utils.isIterable('')).toBe(true);
 154     expect(Utils.isIterable(' ')).toBe(true);
 155     expect(Utils.isIterable('test')).toBe(true);
 156     expect(Utils.isIterable(undefined)).toBe(false);
 157     expect(Utils.isIterable(null)).toBe(false);
 158     expect(Utils.isIterable(0)).toBe(false);
 159     expect(Utils.isIterable([0, 1])).toBe(true);
 160     expect(Utils.isIterable({ 1: 1 })).toBe(false);
 161     expect(Utils.isIterable(new Map())).toBe(true);
 162     expect(Utils.isIterable(new Set())).toBe(true);
 163     expect(Utils.isIterable(new WeakMap())).toBe(false);
 164     expect(Utils.isIterable(new WeakSet())).toBe(false);
 165   });
 166
 167   it('Verify isEmptyString()', () => {
 168     expect(Utils.isEmptyString('')).toBe(true);
 169     expect(Utils.isEmptyString(' ')).toBe(true);
 170     expect(Utils.isEmptyString('     ')).toBe(true);
 171     expect(Utils.isEmptyString('test')).toBe(false);
 172     expect(Utils.isEmptyString(' test')).toBe(false);
 173     expect(Utils.isEmptyString('test ')).toBe(false);
 174     expect(Utils.isEmptyString(undefined)).toBe(true);
 175     expect(Utils.isEmptyString(null)).toBe(true);
 176     expect(Utils.isEmptyString(0)).toBe(false);
 177     expect(Utils.isEmptyString({})).toBe(false);
 178     expect(Utils.isEmptyString([])).toBe(false);
 179     expect(Utils.isEmptyString(new Map())).toBe(false);
 180     expect(Utils.isEmptyString(new Set())).toBe(false);
 181     expect(Utils.isEmptyString(new WeakMap())).toBe(false);
 182     expect(Utils.isEmptyString(new WeakSet())).toBe(false);
 183   });
 184
 185   it('Verify isNotEmptyString()', () => {
 186     expect(Utils.isNotEmptyString('')).toBe(false);
 187     expect(Utils.isNotEmptyString(' ')).toBe(false);
 188     expect(Utils.isNotEmptyString('     ')).toBe(false);
 189     expect(Utils.isNotEmptyString('test')).toBe(true);
 190     expect(Utils.isNotEmptyString(' test')).toBe(true);
 191     expect(Utils.isNotEmptyString('test ')).toBe(true);
 192     expect(Utils.isNotEmptyString(undefined)).toBe(false);
 193     expect(Utils.isNotEmptyString(null)).toBe(false);
 194     expect(Utils.isNotEmptyString(0)).toBe(false);
 195     expect(Utils.isNotEmptyString({})).toBe(false);
 196     expect(Utils.isNotEmptyString([])).toBe(false);
 197     expect(Utils.isNotEmptyString(new Map())).toBe(false);
 198     expect(Utils.isNotEmptyString(new Set())).toBe(false);
 199     expect(Utils.isNotEmptyString(new WeakMap())).toBe(false);
 200     expect(Utils.isNotEmptyString(new WeakSet())).toBe(false);
 201   });
 202
 203   it('Verify isUndefined()', () => {
 204     expect(Utils.isUndefined(undefined)).toBe(true);
 205     expect(Utils.isUndefined(null)).toBe(false);
 206     expect(Utils.isUndefined('')).toBe(false);
 207     expect(Utils.isUndefined(0)).toBe(false);
 208     expect(Utils.isUndefined({})).toBe(false);
 209     expect(Utils.isUndefined([])).toBe(false);
 210     expect(Utils.isUndefined(new Map())).toBe(false);
 211     expect(Utils.isUndefined(new Set())).toBe(false);
 212     expect(Utils.isUndefined(new WeakMap())).toBe(false);
 213     expect(Utils.isUndefined(new WeakSet())).toBe(false);
 214   });
 215
 216   it('Verify isNullOrUndefined()', () => {
 217     expect(Utils.isNullOrUndefined(undefined)).toBe(true);
 218     expect(Utils.isNullOrUndefined(null)).toBe(true);
 219     expect(Utils.isNullOrUndefined('')).toBe(false);
 220     expect(Utils.isNullOrUndefined(0)).toBe(false);
 221     expect(Utils.isNullOrUndefined({})).toBe(false);
 222     expect(Utils.isNullOrUndefined([])).toBe(false);
 223     expect(Utils.isNullOrUndefined(new Map())).toBe(false);
 224     expect(Utils.isNullOrUndefined(new Set())).toBe(false);
 225     expect(Utils.isNullOrUndefined(new WeakMap())).toBe(false);
 226     expect(Utils.isNullOrUndefined(new WeakSet())).toBe(false);
 227   });
 228
 229   it('Verify isEmptyArray()', () => {
 230     expect(Utils.isEmptyArray([])).toBe(true);
 231     expect(Utils.isEmptyArray([1, 2])).toBe(false);
 232     expect(Utils.isEmptyArray(['1', '2'])).toBe(false);
 233     expect(Utils.isEmptyArray(undefined)).toBe(false);
 234     expect(Utils.isEmptyArray(null)).toBe(false);
 235     expect(Utils.isEmptyArray('')).toBe(false);
 236     expect(Utils.isEmptyArray('test')).toBe(false);
 237     expect(Utils.isEmptyArray(0)).toBe(false);
 238     expect(Utils.isEmptyArray({})).toBe(false);
 239     expect(Utils.isEmptyArray(new Map())).toBe(false);
 240     expect(Utils.isEmptyArray(new Set())).toBe(false);
 241     expect(Utils.isEmptyArray(new WeakMap())).toBe(false);
 242     expect(Utils.isEmptyArray(new WeakSet())).toBe(false);
 243   });
 244
 245   it('Verify isNotEmptyArray()', () => {
 246     expect(Utils.isNotEmptyArray([])).toBe(false);
 247     expect(Utils.isNotEmptyArray([1, 2])).toBe(true);
 248     expect(Utils.isNotEmptyArray(['1', '2'])).toBe(true);
 249     expect(Utils.isNotEmptyArray(undefined)).toBe(false);
 250     expect(Utils.isNotEmptyArray(null)).toBe(false);
 251     expect(Utils.isNotEmptyArray('')).toBe(false);
 252     expect(Utils.isNotEmptyArray('test')).toBe(false);
 253     expect(Utils.isNotEmptyArray(0)).toBe(false);
 254     expect(Utils.isNotEmptyArray({})).toBe(false);
 255     expect(Utils.isNotEmptyArray(new Map())).toBe(false);
 256     expect(Utils.isNotEmptyArray(new Set())).toBe(false);
 257     expect(Utils.isNotEmptyArray(new WeakMap())).toBe(false);
 258     expect(Utils.isNotEmptyArray(new WeakSet())).toBe(false);
 259   });
 260
 261   it('Verify isEmptyObject()', () => {
 262     expect(Utils.isEmptyObject({})).toBe(true);
 263     expect(Utils.isEmptyObject({ 1: 1, 2: 2 })).toBe(false);
 264     expect(Utils.isEmptyObject(undefined)).toBe(false);
 265     expect(Utils.isEmptyObject(null)).toBe(false);
 266     expect(Utils.isEmptyObject(new Map())).toBe(false);
 267     expect(Utils.isEmptyObject(new Set())).toBe(false);
 268     expect(Utils.isEmptyObject(new WeakMap())).toBe(false);
 269     expect(Utils.isEmptyObject(new WeakSet())).toBe(false);
 270   });
 271 });