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