Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use toBeSymbol method in jest-extended

Best JavaScript code snippet using jest-extended

UnidocSymbol.spec.ts

Source:UnidocSymbol.spec.ts

...10  /**11   * 12   */13  it('instantiate an empty symbol by default', function () {14    expect(new UnidocSymbol()).toBeSymbol(UTF32CodeUnit.NULL)15  })16  /**17   * 18   */19  describe('prototype.copy', function () {20    /**21     * 22     */23    it('copy an instance', function copyAnInstance() {24      const source: UnidocSymbol = new UnidocSymbol(25        UTF32CodeUnit.LATIN_CAPITAL_LETTER_R,26        UnidocOrigin.fromRuntime(copyAnInstance).atCoordinates(0, 5, 145)27      )28      const destination: UnidocSymbol = new UnidocSymbol()29      expect(destination).not.toBeSymbol(source)30      destination.copy(source)31      expect(destination).toBeSymbol(source)32    })33  })34  /**35   * 36   */37  describe('prototype.clone', function () {38    /**39     * 40     */41    it('returns a copy', function returnsACopy() {42      const source: UnidocSymbol = new UnidocSymbol(43        UTF32CodeUnit.LATIN_CAPITAL_LETTER_R,44        UnidocOrigin.fromRuntime(returnsACopy).atCoordinates(0, 5, 145)45      )46      expect(source).toBeSymbol(source.clone())47      expect(source).not.toBe(source.clone())48    })49  })50  /**51   * 52   */53  describe('prototype.clear', function () {54    /**55     * 56     */57    it('reset an instance', function resetsAnInstance() {58      const source: UnidocSymbol = new UnidocSymbol(59        UTF32CodeUnit.LATIN_CAPITAL_LETTER_R,60        UnidocOrigin.fromRuntime(resetsAnInstance).atCoordinates(0, 5, 145)61      )62      expect(source).not.toBeSymbol(UnidocSymbol.DEFAULT)63      source.clear()64      expect(source).toBeSymbol(UnidocSymbol.DEFAULT)65    })66  })67  /**68   * 69   */70  describe('prototype.equals', function () {71    /**72     * 73     */74    it('returns false if compared to value of another type', function returnsFalseIfComparedToValueOfAnotherType() {75      const instance: UnidocSymbol = new UnidocSymbol(76        UTF32CodeUnit.LATIN_CAPITAL_LETTER_R,77        UnidocOrigin.fromRuntime(returnsFalseIfComparedToValueOfAnotherType).atCoordinates(0, 5, 145)78      )...

toBeSymbol.ts

Source:toBeSymbol.ts

...16    interface Matchers<R> {17      /**18       * 19       */20      toBeSymbol(symbol: UTF32CodeUnit): R;21      /**22       * 23       */24      toBeSymbol(origin: UnidocOrigin, symbol: UTF32CodeUnit): R;25      /**26       * 27       */28      toBeSymbol(symbol: UnidocSymbol): R;29    }30  }31}32/**33 * 34 */35function createNullMessage(this: jest.MatcherContext, received: null | undefined) {36  return (37    `Expected value to be an instance of ${UnidocSymbol.constructor.name} but ` +38    `received ${this.utils.printReceived(received)} instead.`39  )40}41/**42 * 43 */44function createNotAnObjectMessage(this: jest.MatcherContext, received: unknown) {45  return (46    `Expected value to be an instance of ${UnidocSymbol.constructor.name} but ` +47    `received an instance of ${typeof received} instead.`48  )49}50/**51 * 52 */53function createNotASymbolMessage(this: jest.MatcherContext, received: object) {54  return (55    `Expected value to be an instance of ${UnidocSymbol.constructor.name} but ` +56    `received an instance of ${received.constructor.name} instead.`57  )58}59/**60 * 61 */62function createDifferentSymbolMessage(this: jest.MatcherContext, received: UnidocSymbol, expected: UnidocSymbol) {63  const printer: UnicodeTablePrinter = new UnicodeTablePrinter(3)64  printer.pushValues('property', 'received', 'expected')65  printer.tint(undefined)66  printer.pushValues('code', UTF32CodeUnit.toDebugString(received.code), UTF32CodeUnit.toDebugString(expected.code))67  printer.tint(received.code === expected.code ? chalk.green : chalk.red)68  printer.pushValues('range', received.origin.range.toString(), expected.origin.range.toString())69  printer.tint(received.origin.range.equals(expected.origin.range) ? chalk.green : chalk.red)70  printer.pushValues('source', received.origin.source.toString(), expected.origin.source.toString())71  printer.tint(received.origin.source.equals(expected.origin.source) ? chalk.green : chalk.red)72  return (73    `Expected ${received.toString()} to be ${expected.toString()} but there is notable differences :\r\n` +74    `${printer.head(0)}\r\n` +75    `${printer.after(1)}\r\n` +76    `${printer.head(0)}`77  )78}79/**80 * 81 */82function createEqualSymbolMessage(this: jest.MatcherContext, received: UnidocSymbol, expected: UnidocSymbol) {83  return `Expected ${received.toString()} not to be ${expected.toString()}.`84}85/**86 * 87 */88export function toBeSymbol(this: jest.MatcherContext, received: unknown, origin: UnidocOrigin, symbol: UTF32CodeUnit): jest.CustomMatcherResult89/**90 * 91 */92export function toBeSymbol(this: jest.MatcherContext, received: unknown, expected: UTF32CodeUnit): jest.CustomMatcherResult93/**94 * 95 */96export function toBeSymbol(this: jest.MatcherContext, received: unknown, expected: UnidocSymbol): jest.CustomMatcherResult97/**98 * 99 */100export function toBeSymbol(this: jest.MatcherContext, received: unknown, ...parameters: any[]): jest.CustomMatcherResult {101  if (parameters.length > 1) {102    return implementation.call(this, received, new UnidocSymbol(parameters[0], parameters[1]))103  } else {104    if (parameters[0] instanceof UnidocSymbol) {105      return implementation.call(this, received, parameters[0])106    } else {107      return implementation.call(this, received, new UnidocSymbol(parameters[0]))108    }109  }110}111function implementation(this: jest.MatcherContext, received: unknown, expected: UnidocSymbol) {112  if (received == null) {113    return { pass: false, message: createNullMessage.bind(this, received) }114  }...

to_be_symbol.ts

Source:to_be_symbol.ts

...20 *   },21 * });22 *23 * test("passes when value is a symbol", () => {24 *   expect(Symbol()).toBeSymbol();25 *   expect(true).not.toBeSymbol();26 * });27 * ```28 */29function toBeSymbol(actual: unknown): MatchResult {30  return {31    pass: isSymbol(actual),32    expected: "symbol",33  };34}...

Using AI Code Generation

1const { toBeSymbol } = require('jest-extended');2expect.extend({ toBeSymbol });3test('passes when value is a symbol', () => {4  expect(Symbol('foo')).toBeSymbol();5});6test('fails when value is not a symbol', () => {7  expect('foo').toBeSymbol();8});9const { toBeSymbol } = require('jest-extended');10expect.extend({ toBeSymbol });11test('passes when value is a symbol', () => {12  expect(Symbol('foo')).toBeSymbol();13});14test('fails when value is not a symbol', () => {15  expect('foo').toBeSymbol();16});17const { toBeSymbol } = require('jest-extended');18expect.extend({ toBeSymbol });19test('passes when value is a symbol', () => {20  expect(Symbol('foo')).toBeSymbol();21});22test('fails when value is not a symbol', () => {23  expect('foo').toBeSymbol();24});25const { toBeSymbol } = require('jest-extended');26expect.extend({ toBeSymbol });27test('passes when value is a symbol', () => {28  expect(Symbol('foo')).toBeSymbol();29});30test('fails when value is not a symbol', () => {31  expect('foo').toBeSymbol();32});33const { toBeSymbol } = require('jest-extended');34expect.extend({ toBeSymbol });35test('passes when value is a symbol', () => {36  expect(Symbol('foo')).toBeSymbol();37});38test('fails when value is not a symbol', () => {39  expect('foo').toBeSymbol();40});41const { toBeSymbol } = require('jest-extended');42expect.extend({ toBeSymbol });43test('passes when value is a symbol', () => {44  expect(Symbol('foo')).toBeSymbol();45});46test('fails when value is not a symbol', () => {47  expect('foo').toBeSymbol();48});

Using AI Code Generation

1const { toBeSymbol } = require('jest-extended');2expect.extend({ toBeSymbol });3test('passes when value is a symbol', () => {4  expect(Symbol('foo')).toBeSymbol();5});6test('fails when value is not a symbol', () => {7  expect(false).toBeSymbol();8});9const { toBeTrue } = require('jest-extended');10expect.extend({ toBeTrue });11test('passes when value is true', () => {12  expect(true).toBeTrue();13});14test('fails when value is not true', () => {15  expect(false).toBeTrue();16});17const { toBeType } = require('jest-extended');18expect.extend({ toBeType });19test('passes when value is a string', () => {20  expect('foo').toBeType('string');21});22test('fails when value is not a string', () => {23  expect(false).toBeType('string');24});25const { toBeUndefined } = require('jest-extended');26expect.extend({ toBeUndefined });27test('passes when value is undefined', () => {28  expect(undefined).toBeUndefined();29});30test('fails when value is not undefined', () => {31  expect(false).toBeUndefined();32});33const { toBeUrl } = require('jest-extended');34expect.extend({ toBeUrl });35test('passes when value is a URL', () => {36});37test('fails when value is not a URL', () => {38  expect(false).toBeUrl();39});40const { toBeValidDate } = require('jest-extended');41expect.extend({ toBeValidDate });42test('passes when value is a valid date', () => {43  expect(new Date()).toBeValidDate();44});45test('fails when value is not a valid date', () => {46  expect(false).toBeValidDate();47});48const { toBe

Using AI Code Generation

1const { toBeSymbol } = require('jest-extended');2expect.extend({ toBeSymbol });3test('passes when value is a symbol', () => {4  expect(Symbol('foo')).toBeSymbol();5});6test('fails when value is not a symbol', () => {7  expect('foo').not.toBeSymbol();8});9const { toBeTrue } = require('jest-extended');10expect.extend({ toBeTrue });11test('passes when value is true', () => {12  expect(true).toBeTrue();13});14test('fails when value is not true', () => {15  expect(false).not.toBeTrue();16});17const { toBeUndefined } = require('jest-extended');18expect.extend({ toBeUndefined });19test('passes when value is undefined', () => {20  expect(undefined).toBeUndefined();21});22test('fails when value is not undefined', () => {23  expect(null).not.toBeUndefined();24});25const { toBeWeakMap } = require('jest-extended');26expect.extend({ toBeWeakMap });27test('passes when value is a weakmap', () => {28  expect(new WeakMap()).toBeWeakMap();29});30test('fails when value is not a weakmap', () => {31  expect(new Map()).not.toBeWeakMap();32});33const { toBeWeakSet } = require('jest-extended');34expect.extend({ toBeWeakSet });35test('passes when value is a weakset', () => {36  expect(new WeakSet()).toBeWeakSet();37});38test('fails when value is not a weakset', () => {39  expect(new Set()).not.toBeWeakSet();40});41const { toBeWithinRange } = require('jest-extended');42expect.extend({ toBeWithinRange });43test('passes when value is within range', () => {44  expect(2).toBeWithinRange(1, 3);45});46test('fails when value is not within range', () => {47  expect(4).not.toBeWithinRange(1,

Using AI Code Generation

1const { toBeSymbol } = require('jest-extended');2expect.extend({ toBeSymbol });3test('passes when given a Symbol', () => {4  expect(Symbol('foo')).toBeSymbol();5});6test('fails when not given a Symbol', () => {7  expect('foo').not.toBeSymbol();8});9const { toBeTrue } = require('jest-extended');10expect.extend({ toBeTrue });11test('passes when given true', () => {12  expect(true).toBeTrue();13});14test('fails when not given true', () => {15  expect(false).not.toBeTrue();16});17const { toBeTruthy } = require('jest-extended');18expect.extend({ toBeTruthy });19test('passes when given truthy value', () => {20  expect(true).toBeTruthy();21});22test('fails when not given truthy value', () => {23  expect(false).not.toBeTruthy();24});25const { toBeType } = require('jest-extended');26expect.extend({ toBeType });27test('passes when given a number', () => {28  expect(1).toBeType('number');29});30test('fails when not given a number', () => {31  expect('foo').not.toBeType('number');32});33const { toBeUndefined } = require('jest-extended');34expect.extend({ toBeUndefined });35test('passes when given undefined', () => {36  expect(undefined).toBeUndefined();37});38test('fails when not given undefined', () => {39  expect('foo').not.toBeUndefined();40});41const { toBeUint } = require('jest-extended');42expect.extend({ toBeUint });43test('passes when given a Uint8Array', () => {44  expect(new Uint8Array()).toBeUint();45});46test('fails when not given a Uint8Array', () => {47  expect('foo').not.toBeUint();48});49const { toBeUint8Cl

Using AI Code Generation

1const { toBeSymbol } = require('jest-extended');2expect.extend({ toBeSymbol });3test('passes when value is a symbol', () => {4    expect(Symbol('foo')).toBeSymbol();5});6test('fails when value is not a symbol', () => {7    expect('foo').toBeSymbol();8});9const { toBeString } = require('jest-extended');10expect.extend({ toBeString });11test('passes when value is a string', () => {12    expect('foo').toBeString();13});14test('fails when value is not a string', () => {15    expect(1).toBeString();16});17const { toBeTrue } = require('jest-extended');18expect.extend({ toBeTrue });19test('passes when value is true', () => {20    expect(true).toBeTrue();21});22test('fails when value is not true', () => {23    expect(false).toBeTrue();24});25const { toBeTruthy } = require('jest-extended');26expect.extend({ toBeTruthy });27test('passes when value is truthy', () => {28    expect(true).toBeTruthy();29});30test('fails when value is not truthy', () => {31    expect(false).toBeTruthy();32});33const { toBeUndefined } = require('jest-extended');34expect.extend({ toBeUndefined });35test('passes when value is undefined', () => {36    expect(undefined).toBeUndefined();37});38test('fails when value is not undefined', () => {39    expect(null).toBeUndefined();40});41const { toBeWeakMap } = require('jest-extended');42expect.extend({ toBeWeakMap });43test('passes when value is a WeakMap', () => {44    expect(new WeakMap()).toBeWeakMap();45});46test('fails when value is not a WeakMap', () => {47    expect(new Map()).toBeWeakMap();48});49const { toBeWeakSet } = require

Using AI Code Generation

1expect(Symbol('foo')).toBeSymbol()2expect(Symbol.for('foo')).toBeSymbol()3expect(Symbol.iterator).toBeSymbol()4expect(Symbol('foo')).not.toBeSymbol()5expect(Symbol.for('foo')).not.toBeSymbol()6expect(Symbol.iterator).not.toBeSymbol()7expect(true).toBeTrue()8expect(false).not.toBeTrue()9expect(true).toBeTruthy()10expect(false).not.toBeTruthy()11expect(1).toBeTruthy()12expect(0).not.toBeTruthy()13expect('foo').toBeTruthy()14expect('').not.toBeTruthy()15expect([]).toBeTruthy()16expect([1]).toBeTruthy()17expect({}).toBeTruthy()18expect({ a: 1 }).toBeTruthy()19expect(null).not.toBeTruthy()20expect(undefined).not.toBeTruthy()21expect(1).toBeType('number')22expect(1).toBeType(Number)23expect('foo').toBeType('string')24expect('foo').toBeType(String)25expect(true).toBeType('boolean')26expect(true).toBeType(Boolean)27expect(undefined).toBeType('undefined')28expect(undefined).toBeType(undefined)29expect(null).toBeType('object')30expect(null).toBeType(Object)31expect({}).toBeType('object')32expect({}).toBeType(Object)33expect([]).toBeType('array')34expect([]).toBeType(Array)35expect(new Error()).toBeType('error')36expect(new Error()).toBeType(Error)37expect(new Map()).toBeType('map')38expect(new Map()).toBeType(Map)39expect(new Set()).toBeType('set')40expect(new Set()).toBeType(Set)41expect(new WeakMap()).toBeType('weakmap')42expect(new WeakMap()).toBeType(WeakMap)43expect(new WeakSet()).toBeType('weakset')44expect(new WeakSet()).toBeType(WeakSet)45expect(new ArrayBuffer()).toBeType('arraybuffer')46expect(new ArrayBuffer()).toBeType(ArrayBuffer)47expect(new DataView(new ArrayBuffer())).toBeType('dataview')48expect(new DataView(new ArrayBuffer())).toBeType(DataView)49expect(new Date()).toBeType('date')50expect(new Date()).toBeType(Date)51expect(new Promise(() => {})).toBeType('promise')52expect(new Promise(() => {})).toBeType(Promise)53expect(new RegExp()).toBeType('regexp')

Using AI Code Generation

1test('toBeSymbol', () => {2  const sym = Symbol('foo');3  expect(sym).toBeSymbol();4});5test('toBeTrue', () => {6  expect(true).toBeTrue();7});8test('toBeUndefined', () => {9  expect(undefined).toBeUndefined();10});11test('toBeWeakMap', () => {12  expect(new WeakMap()).toBeWeakMap();13});14test('toBeWeakSet', () => {15  expect(new WeakSet()).toBeWeakSet();16});17test('toBeWithinRange', () => {18  expect(2).toBeWithinRange(1, 3);19});20test('toContainAllEntries', () => {21  expect(new Map([['a', 1], ['b', 2]])).toContainAllEntries([22  ]);23});24test('toContainAllKeys', () => {25  expect(new Map([['a', 1], ['b', 2]])).toContainAllKeys(['a', 'b']);26});27test('toContainAnyEntries', () => {28  expect(new Map([['a', 1], ['b', 2]])).toContainAnyEntries([29  ]);30});31test('toContainAnyKeys', () => {32  expect(new Map([['a', 1], ['b', 2]])).toContainAnyKeys(['a', 'c']);33});34test('toContainEntry', () => {35  expect(new Map

Using AI Code Generation

1const { toBeSymbol } = require('jest-extended');2expect.extend({ toBeSymbol });3test('passes when value is a symbol', () => {4  expect(Symbol('foo')).toBeSymbol();5});6test('fails when value is not a symbol', () => {7  expect('foo').not.toBeSymbol();8});9✓ passes when value is a symbol (2ms)10✓ fails when value is not a symbol (1ms)

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.