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

Copied to Clipboard!

How to use areDepsEqual method in storybook-root

Best JavaScript code snippet using storybook-root

index.test.ts

Source:index.test.ts

...4  describe('true', (): void => {5    test('Primitive types', (): void => {6      const deps1 = [42, true, 'foo']7      const deps2 = [42, true, 'foo']8      expect(areDepsEqual(deps1, deps2)).toBe(true)9    })10    test('Object types', (): void => {11      const arr = []12      const obj = {}13      const deps1 = [arr, obj]14      const deps2 = [arr, obj]15      expect(areDepsEqual(deps1, deps2)).toBe(true)16    })17  })18  describe('false', (): void => {19    test('Primitive types', (): void => {20      const deps1 = [42, false, 'foo']21      const deps2 = [42, true, 'bar']22      expect(areDepsEqual(deps1, deps2)).toBe(false)23    })24    test('Object types', (): void => {25      const arr = []26      const obj = {}27      const deps1 = [arr, obj]28      const deps2 = [arr, {}]29      expect(areDepsEqual(deps1, deps2)).toBe(false)30    })31    test('Different length', (): void => {32      const deps1 = [42, true, 'foo']33      const deps2 = [42, true]34      expect(areDepsEqual(deps1, deps2)).toBe(false)35    })36  })37})38test(memoize.name, (): void => {39  const add = jest.fn((num1: number, num2: number): number => num1 + num2)40  const memoizedAdd = memoize(add)41  memoizedAdd(1, 2)42  expect(add).toHaveBeenNthCalledWith(1, 1, 2)43  memoizedAdd(1, 2)44  expect(add).toHaveBeenNthCalledWith(1, 1, 2)45  memoizedAdd(3, 4)46  expect(add).toHaveBeenNthCalledWith(2, 3, 4)47  memoizedAdd(1, 2)48  expect(add).toHaveBeenNthCalledWith(3, 1, 2)...

useCache.ts

Source:useCache.ts

...12  const time = useTime("absolute");13  const prevDeps = useRef(deps);14  const prevExpires = useRef<Date | number>();15  useEffect(() => {16    const depsChanged = !areDepsEqual(prevDeps.current, deps);17    const expired = time >= expires && expires !== prevExpires.current;18    if (depsChanged || expired) {19      prevDeps.current = deps;20      prevExpires.current = expires;21      return effect();22    }23  }, [...deps, expires, time]);24}25export type RotatingCache<Item> = {26  now: Item;27  next: Item;28  rotated: number;29  deps: unknown[];30};31/**32 * It's complicated.33 * Essentially is uses a create function and a cache to return a precached object that rotates on a timeout.34 * See: Unsplash plugin35 */36export function useRotatingCache<T>(37  create: () => T | Promise<T>,38  { cache, setCache }: Cache<RotatingCache<T>>,39  timeout: number,40  deps: unknown[],41): T | undefined {42  const rotateCache = () => {43    const rotatedCache = {44      ...cache!,45      now: cache!.next,46      rotated: Date.now(),47    };48    setCache(rotatedCache);49    Promise.resolve(create()).then((next) =>50      setCache({ ...rotatedCache, next }),51    );52  };53  // Special case for changing every new tab54  useEffect(() => {55    if (cache && timeout === 0) {56      rotateCache();57    }58  }, [timeout]);59  // Rotate cache on timeout60  const time = useTime("absolute").getTime();61  useEffect(() => {62    if (cache && timeout !== 0 && time > cache.rotated + timeout) {63      rotateCache();64    }65  }, [time, timeout]);66  // On dependency change, refresh all67  useEffect(() => {68    if (!cache || !areDepsEqual(deps, cache.deps)) {69      Promise.all([create(), create()]).then(([now, next]) =>70        setCache({ now, next, rotated: Date.now(), deps }),71      );72    }73  }, [...deps, cache]);74  return cache ? cache.now : undefined;75}76/**77 * Implementation adapted from react's hook source.78 * Too bad they do not export it.79 */80function areDepsEqual(prevDeps: unknown[], nextDeps: unknown[]) {81  for (let i = 0; i < prevDeps.length && i < nextDeps.length; i++) {82    if (Object.is(nextDeps[i], prevDeps[i])) {83      continue;84    }85    return false;86  }87  return true;...

deps.test.ts

Source:deps.test.ts

1import { areDepsEqual, depsRequireUpdate } from '../../src/core/areDepsEqual'2describe('dependecy array', () => {3  test('array identity can be different (empty)', () => {4    expect(areDepsEqual([], [])).toBeTruthy()5  })6  test('array identity can be different (with value)', () => {7    const someObj = { a: '1' }8    expect(areDepsEqual(['a'], ['a'])).toBeTruthy()9    expect(areDepsEqual([1], [1])).toBeTruthy()10    expect(areDepsEqual([someObj], [someObj])).toBeTruthy()11  })12  test('deps of different length', () => {13    expect(areDepsEqual(['a'], ['a', 'b'])).toBeFalsy()14    expect(areDepsEqual(['a', 'b'], ['a'])).toBeFalsy()15  })16  test('missing deps array (always consider as different)', () => {17    // @ts-expect-error18    expect(areDepsEqual(undefined, [])).toBeFalsy()19    // @ts-expect-error20    expect(areDepsEqual(undefined, undefined)).toBeFalsy()21    // @ts-expect-error22    expect(areDepsEqual(false, false)).toBeFalsy()23  })24  test('value types', () => {25    expect(areDepsEqual([NaN], [NaN])).toBeTruthy()26  })27})28describe('depsRequireUpdate', () => {29  test('array identity can be different (with value)', () => {30    const someObj = { a: '1' }31    expect(depsRequireUpdate(['a'], ['a'])).toBeFalsy()32    expect(depsRequireUpdate([1], [1])).toBeFalsy()33    expect(depsRequireUpdate([someObj], [someObj])).toBeFalsy()34  })35  test('missing deps array (always consider as different)', () => {36    expect(depsRequireUpdate(undefined, [])).toBeTruthy()37    expect(depsRequireUpdate(undefined, undefined)).toBeTruthy()38  })39})

Using AI Code Generation

1import {areDepsEqual} from 'storybook-root';2import {areDepsEqual} from 'storybook-root';3import {areDepsEqual} from 'storybook-root';4import {areDepsEqual} from 'storybook-root';5import {areDepsEqual} from 'storybook-root';6import {areDepsEqual} from 'storybook-root';7import {areDepsEqual} from 'storybook-root';8import {areDepsEqual} from 'storybook-root';9import {areDepsEqual} from 'storybook-root';10import {areDepsEqual} from 'storybook-root';11import {areDepsEqual} from 'storybook-root';12import {areDepsEqual} from 'storybook-root';13import {areDepsEqual} from 'storybook-root';14import {areDepsEqual} from 'storybook-root';15import {areDepsEqual} from 'storybook-root';16import {areDepsEqual} from 'storybook-root';17import {areDepsEqual} from 'storybook-root';18import {areDepsEqual} from '

Using AI Code Generation

1const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');2const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');3const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');4const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');5const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');6const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');7const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');8const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');9const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');10const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');11const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');12const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');13const { areDepsEqual } = require('@storybook/addon-deps/dist/preview');

Using AI Code Generation

1export { areDepsEqual } from 'storybook-root';2import { areDepsEqual } from './test';3describe('test', () => {4  it('should run', () => {5    expect(areDepsEqual).to.be.a('function');6  });7});8export { areDepsEqual } from 'storybook-root/areDepsEqual';9export { areDepsEqual } from 'storybook-root/lib/areDepsEqual';10export { areDepsEqual } from 'storybook-root/lib/areDepsEqual';11import { areDepsEqual } from './test';12describe('test', () => {13  it('should run', () => {14    expect(areDepsEqual).to.be.a('function');15  });16});17export { areDepsEqual } from 'storybook-root/areDepsEqual';18import { areDepsEqual } from './test';19describe('test', () => {20  it('should run', () => {21    expect(areDepsEqual).to.be.a('function');22  });23});24export { areDepsEqual } from 'storybook-root/lib/areDepsEqual';25import { areDepsEqual } from './test';

Using AI Code Generation

1import { areDepsEqual } from 'storybook-root/dist/esm/client/preview/deps';2it('should not rerender', () => {3  const deps = { a: 1, b: 2 };4  const deps2 = { a: 1, b: 2 };5  expect(areDepsEqual(deps, deps2)).toBeTruthy();6});7import { areDepsEqual } from 'storybook-root/dist/esm/client/preview/deps';8it('should rerender', () => {9  const deps = { a: 1, b: 2 };10  const deps2 = { a: 1, b: 3 };11  expect(areDepsEqual(deps, deps2)).toBeFalsy();12});13The problem is that I have to import the method from the dist folder. Is there a way to import it from the root folder?14"dependencies": {15  }

Using AI Code Generation

1import { areDepsEqual } from 'storybook-root';2import { getDependencies } from 'storybook-root';3jest.mock('storybook-root', () => ({4  ...jest.requireActual('storybook-root'),5  getDependencies: jest.fn(),6}));7jest.mock('storybook-root', () => ({8  ...jest.requireActual('storybook-root'),9  getDependencies: jest.fn(),10}));11describe('areDepsEqual', () => {12  it('should return true if dependencies are equal', () => {13    const dependencies = {14    };15    getDependencies.mockReturnValue(dependencies);16    expect(areDepsEqual(dependencies)).toBeTruthy();17  });18  it('should return false if dependencies are not equal', () => {19    const dependencies = {20    };21    const dependencies1 = {22    };23    getDependencies.mockReturnValue(dependencies);24    expect(areDepsEqual(dependencies1)).toBeFalsy();25  });26});27export const getDependencies = () => {28  try {29    return JSON.parse(fs.readFileSync('package.json')).dependencies;30  } catch (e) {31    throw new Error(`Error while reading package.json file: ${e.message}`);32  }33};34export const areDepsEqual = (dependencies) => {35  const pkgJsonDependencies = getDependencies();36  return _.isEqual(pkgJsonDependencies, dependencies);37};38{39  "dependencies": {40  }41}42{43      {44      }45}46{

Using AI Code Generation

1import { areDepsEqual } from 'storybook-root';2const Component = ({ prop1, prop2 }) => {3};4const areDepsEqual = (prevProps, nextProps) => {5};6export default Component;7import { storiesOf } from '@storybook/react';8import { withInfo } from '@storybook/addon-info';9import Component from './test';10storiesOf('Component', module)11  .addDecorator(withInfo)12  .add('Component', () => <Component prop1={1} prop2={2} />);

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.