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 convertToDate()', () => {
  26     expect(Utils.convertToDate(undefined)).toBe(undefined);
  27     expect(Utils.convertToDate(null)).toBe(null);
  28     expect(Utils.convertToDate(0)).toBe(0);
  29     const dateStr = '2020-01-01T00:00:00.000Z';
  30     let date = Utils.convertToDate(dateStr);
  31     expect(date).toBeInstanceOf(Date);
  32     expect(date.getUTCFullYear()).toBe(2020);
  33     expect(date.getUTCMonth()).toBe(0);
  34     expect(date.getUTCDate()).toBe(1);
  35     expect(date.getUTCHours()).toBe(0);
  36     expect(date.getUTCMinutes()).toBe(0);
  37     expect(date.getUTCSeconds()).toBe(0);
  38     expect(date.getUTCMilliseconds()).toBe(0);
  39     date = Utils.convertToDate(new Date(dateStr));
  40     expect(date).toBeInstanceOf(Date);
  41     expect(date.getUTCFullYear()).toBe(2020);
  42     expect(date.getUTCMonth()).toBe(0);
  43     expect(date.getUTCDate()).toBe(1);
  44     expect(date.getUTCHours()).toBe(0);
  45     expect(date.getUTCMinutes()).toBe(0);
  46     expect(date.getUTCSeconds()).toBe(0);
  47     expect(date.getUTCMilliseconds()).toBe(0);
  48   });
  49
  50   it('Verify convertToInt()', () => {
  51     expect(Utils.convertToInt(undefined)).toBe(0);
  52     expect(Utils.convertToInt(null)).toBe(0);
  53     expect(Utils.convertToInt(0)).toBe(0);
  54     const randomInteger = Utils.getRandomInteger();
  55     expect(Utils.convertToInt(randomInteger)).toEqual(randomInteger);
  56     expect(Utils.convertToInt('-1')).toBe(-1);
  57     expect(Utils.convertToInt('1')).toBe(1);
  58     expect(Utils.convertToInt('1.1')).toBe(1);
  59     expect(Utils.convertToInt('1.9')).toBe(1);
  60     expect(Utils.convertToInt('1.999')).toBe(1);
  61     expect(Utils.convertToInt(-1)).toBe(-1);
  62     expect(Utils.convertToInt(1)).toBe(1);
  63     expect(Utils.convertToInt(1.1)).toBe(1);
  64     expect(Utils.convertToInt(1.9)).toBe(1);
  65     expect(Utils.convertToInt(1.999)).toBe(1);
  66   });
  67
  68   it('Verify convertToFloat()', () => {
  69     expect(Utils.convertToFloat(undefined)).toBe(0);
  70     expect(Utils.convertToFloat(null)).toBe(0);
  71     expect(Utils.convertToFloat(0)).toBe(0);
  72     const randomFloat = Utils.getRandomFloat();
  73     expect(Utils.convertToFloat(randomFloat)).toEqual(randomFloat);
  74     expect(Utils.convertToFloat('-1')).toBe(-1);
  75     expect(Utils.convertToFloat('1')).toBe(1);
  76     expect(Utils.convertToFloat('1.1')).toBe(1.1);
  77     expect(Utils.convertToFloat('1.9')).toBe(1.9);
  78     expect(Utils.convertToFloat('1.999')).toBe(1.999);
  79     expect(Utils.convertToFloat(-1)).toBe(-1);
  80     expect(Utils.convertToFloat(1)).toBe(1);
  81     expect(Utils.convertToFloat(1.1)).toBe(1.1);
  82     expect(Utils.convertToFloat(1.9)).toBe(1.9);
  83     expect(Utils.convertToFloat(1.999)).toBe(1.999);
  84   });
  85
  86   it('Verify convertToBoolean()', () => {
  87     expect(Utils.convertToBoolean(undefined)).toBe(false);
  88     expect(Utils.convertToBoolean(null)).toBe(false);
  89     expect(Utils.convertToBoolean('true')).toBe(true);
  90     expect(Utils.convertToBoolean('false')).toBe(false);
  91     expect(Utils.convertToBoolean('TRUE')).toBe(true);
  92     expect(Utils.convertToBoolean('FALSE')).toBe(false);
  93     expect(Utils.convertToBoolean('1')).toBe(true);
  94     expect(Utils.convertToBoolean('0')).toBe(false);
  95     expect(Utils.convertToBoolean(1)).toBe(true);
  96     expect(Utils.convertToBoolean(0)).toBe(false);
  97     expect(Utils.convertToBoolean(true)).toBe(true);
  98     expect(Utils.convertToBoolean(false)).toBe(false);
  99     expect(Utils.convertToBoolean('')).toBe(false);
 100     expect(Utils.convertToBoolean('NoNBoolean')).toBe(false);
 101   });
 102
 103   it('Verify secureRandom()', () => {
 104     const random = Utils.secureRandom();
 105     expect(typeof random === 'number').toBe(true);
 106     expect(random).toBeGreaterThanOrEqual(0);
 107     expect(random).toBeLessThan(1);
 108   });
 109
 110   it('Verify getRandomInteger()', () => {
 111     let randomInteger = Utils.getRandomInteger();
 112     expect(Number.isSafeInteger(randomInteger)).toBe(true);
 113     expect(randomInteger).toBeGreaterThanOrEqual(0);
 114     expect(randomInteger).toBeLessThanOrEqual(Number.MAX_SAFE_INTEGER);
 115     expect(() => Utils.getRandomInteger(0, 1)).toThrowError(new RangeError('Invalid interval'));
 116     expect(() => Utils.getRandomInteger(-1)).toThrowError(new RangeError('Invalid interval'));
 117     expect(() => Utils.getRandomInteger(0, -1)).toThrowError(new RangeError('Invalid interval'));
 118     randomInteger = Utils.getRandomInteger(2, 1);
 119     expect(randomInteger).toBeGreaterThanOrEqual(1);
 120     expect(randomInteger).toBeLessThanOrEqual(2);
 121     const max = 2.2,
 122       min = 1.1;
 123     randomInteger = Utils.getRandomInteger(max, min);
 124     expect(randomInteger).toBeGreaterThanOrEqual(Math.ceil(min));
 125     expect(randomInteger).toBeLessThanOrEqual(Math.floor(max));
 126   });
 127
 128   it('Verify getRandomFloat()', () => {
 129     let randomFloat = Utils.getRandomFloat();
 130     expect(typeof randomFloat === 'number').toBe(true);
 131     expect(randomFloat).toBeGreaterThanOrEqual(0);
 132     expect(randomFloat).toBeLessThanOrEqual(Number.MAX_VALUE);
 133     expect(() => Utils.getRandomFloat(0, 1)).toThrowError(new RangeError('Invalid interval'));
 134     expect(() => Utils.getRandomFloat(-1)).toThrowError(new RangeError('Invalid interval'));
 135     expect(() => Utils.getRandomFloat(0, -1)).toThrowError(new RangeError('Invalid interval'));
 136     randomFloat = Utils.getRandomFloat(Number.MAX_VALUE, 0, true);
 137     expect(randomFloat).toBeGreaterThanOrEqual(-Number.MAX_VALUE);
 138     expect(randomFloat).toBeLessThanOrEqual(Number.MAX_VALUE);
 139   });
 140
 141   it('Verify isIterable()', () => {
 142     expect(Utils.isIterable('')).toBe(false);
 143     expect(Utils.isIterable(' ')).toBe(true);
 144     expect(Utils.isIterable('test')).toBe(true);
 145     expect(Utils.isIterable(null)).toBe(false);
 146     expect(Utils.isIterable(undefined)).toBe(false);
 147     expect(Utils.isIterable(0)).toBe(false);
 148     expect(Utils.isIterable({})).toBe(false);
 149     expect(Utils.isIterable({ 1: 1 })).toBe(false);
 150     expect(Utils.isIterable([])).toBe(true);
 151     expect(Utils.isIterable(new Map())).toBe(true);
 152     expect(Utils.isIterable(new Set())).toBe(true);
 153     expect(Utils.isIterable(new WeakMap())).toBe(false);
 154     expect(Utils.isIterable(new WeakSet())).toBe(false);
 155   });
 156
 157   it('Verify isEmptyString()', () => {
 158     expect(Utils.isEmptyString('')).toBe(true);
 159     expect(Utils.isEmptyString(' ')).toBe(true);
 160     expect(Utils.isEmptyString('     ')).toBe(true);
 161     expect(Utils.isEmptyString('test')).toBe(false);
 162     expect(Utils.isEmptyString(' test')).toBe(false);
 163     expect(Utils.isEmptyString('test ')).toBe(false);
 164     expect(Utils.isEmptyString(null)).toBe(false);
 165     expect(Utils.isEmptyString(undefined)).toBe(false);
 166     expect(Utils.isEmptyString(0)).toBe(false);
 167     expect(Utils.isEmptyString({})).toBe(false);
 168     expect(Utils.isEmptyString([])).toBe(false);
 169     expect(Utils.isEmptyString(new Map())).toBe(false);
 170     expect(Utils.isEmptyString(new Set())).toBe(false);
 171     expect(Utils.isEmptyString(new WeakMap())).toBe(false);
 172     expect(Utils.isEmptyString(new WeakSet())).toBe(false);
 173   });
 174
 175   it('Verify isUndefined()', () => {
 176     expect(Utils.isUndefined(undefined)).toBe(true);
 177     expect(Utils.isUndefined(null)).toBe(false);
 178     expect(Utils.isUndefined('')).toBe(false);
 179     expect(Utils.isUndefined(0)).toBe(false);
 180     expect(Utils.isUndefined({})).toBe(false);
 181     expect(Utils.isUndefined([])).toBe(false);
 182     expect(Utils.isUndefined(new Map())).toBe(false);
 183     expect(Utils.isUndefined(new Set())).toBe(false);
 184     expect(Utils.isUndefined(new WeakMap())).toBe(false);
 185     expect(Utils.isUndefined(new WeakSet())).toBe(false);
 186   });
 187
 188   it('Verify isNullOrUndefined()', () => {
 189     expect(Utils.isNullOrUndefined(null)).toBe(true);
 190     expect(Utils.isNullOrUndefined(undefined)).toBe(true);
 191     expect(Utils.isNullOrUndefined('')).toBe(false);
 192     expect(Utils.isNullOrUndefined(0)).toBe(false);
 193     expect(Utils.isNullOrUndefined({})).toBe(false);
 194     expect(Utils.isNullOrUndefined([])).toBe(false);
 195     expect(Utils.isNullOrUndefined(new Map())).toBe(false);
 196     expect(Utils.isNullOrUndefined(new Set())).toBe(false);
 197     expect(Utils.isNullOrUndefined(new WeakMap())).toBe(false);
 198     expect(Utils.isNullOrUndefined(new WeakSet())).toBe(false);
 199   });
 200
 201   it('Verify isEmptyArray()', () => {
 202     expect(Utils.isEmptyArray([])).toBe(true);
 203     expect(Utils.isEmptyArray([1, 2])).toBe(false);
 204     expect(Utils.isEmptyArray(null)).toBe(true);
 205     expect(Utils.isEmptyArray(undefined)).toBe(true);
 206     expect(Utils.isEmptyArray('')).toBe(true);
 207     expect(Utils.isEmptyArray('test')).toBe(true);
 208     expect(Utils.isEmptyArray(0)).toBe(true);
 209     expect(Utils.isEmptyArray({})).toBe(true);
 210     expect(Utils.isEmptyArray(new Map())).toBe(true);
 211     expect(Utils.isEmptyArray(new Set())).toBe(true);
 212     expect(Utils.isEmptyArray(new WeakMap())).toBe(true);
 213     expect(Utils.isEmptyArray(new WeakSet())).toBe(true);
 214   });
 215
 216   it('Verify isEmptyObject()', () => {
 217     expect(Utils.isEmptyObject({})).toBe(true);
 218     expect(Utils.isEmptyObject({ 1: 1, 2: 2 })).toBe(false);
 219     expect(Utils.isEmptyObject(null)).toBe(false);
 220     expect(Utils.isEmptyObject(undefined)).toBe(false);
 221     expect(Utils.isEmptyObject(new Map())).toBe(false);
 222     expect(Utils.isEmptyObject(new Set())).toBe(false);
 223     expect(Utils.isEmptyObject(new WeakMap())).toBe(false);
 224     expect(Utils.isEmptyObject(new WeakSet())).toBe(false);
 225   });
 226 });