Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! Join TestMu Conference

How to use beforeScreenshot method in storybook-root

Best JavaScript code snippet using storybook-root

screenshots.js

Source:screenshots.js

...141      await page.goto(url, { waitUntil: 'networkidle2' })142    } catch (e) {}143    await page.waitFor(10 * 1000)144    if (options.beforeScreenshot) {145      await options.beforeScreenshot(page, browser)146      await page.waitFor(5 * 1000)147    }148    if (options.viewport) {149      await page.setViewport({ width: options.viewport.width, height: options.viewport.height })150    } else {151      await page.setViewport({ width: VIEWPORT_WIDTH, height: VIEWPORT_HEIGHT })152    }153    let [height, width] = await page.evaluate(() => [154      document.getElementsByTagName('html')[0].offsetHeight,155      document.getElementsByTagName('html')[0].offsetWidth156    ])157    console.log('ð¸', 'Screenshot', path)158    await page.screenshot({159      path: path,...

imageSnapshotWithStoryParameters.js

Source:imageSnapshotWithStoryParameters.js

...17  if (currentViewport && currentViewport !== Viewport.Default) {18    await page.emulate(devices[currentViewport]);19  }20  if (beforeScreenshot) {21    await beforeScreenshot(page, options);22  }23  if (captureRoot) {24    await page.$eval(25      '#root',26      (root, offset) => {27        root.style.padding = `${offset}px`;28      },29      offset30    );31    return page.$('#root');32  }33  return null;34}35function getCaptureRootScreenshotOptions() {36  return {37    encoding: 'base64', // encoding: 'base64' is a property required by puppeteer38    fullPage: !captureRoot39  };40}41/**42 * Create snapshot tests function with story parameters.43 * @param config - Snapshots config.44 * @returns Snapshot tests function.45 */46export function imageSnapshotWithStoryParameters(config) {47  const { beforeScreenshot, getScreenshotOptions } = config;48  const configWithBeforeScreenshot = {49    ...config,50    getScreenshotOptions: getScreenshotOptions51      ? options => ({52          ...getCaptureRootScreenshotOptions(options),53          ...getScreenshotOptions(options)54        })55      : getCaptureRootScreenshotOptions,56    beforeScreenshot: beforeScreenshot57      ? async (page, options) => {58          const captureTarget = await beforeScreenshotHook(page, options);59          await beforeScreenshot(page, options);60          return captureTarget;61        }62      : beforeScreenshotHook63  };64  const test = imageSnapshot(configWithBeforeScreenshot);65  const testFn = async options => {66    const { context } = options;67    const { storyshots: { viewports = [] } = {} } = context.parameters;68    if (!viewports.length) {69      await test(options);70      return;71    }72    for (const viewport of viewports) {73      const currentViewport =...

screenshot.js

Source:screenshot.js

...20    }21    await page.setContent(html, { waitUntil })22    const element = await page.$('body')23    if (beforeScreenshot && typeof beforeScreenshot === "function") {24      await beforeScreenshot(page);25    }26    const buffer = await element.screenshot({ path: output, type, omitBackground: transparent, encoding, ...screeshotArgs })27    return buffer...

Using AI Code Generation

1const puppeteer = require('puppeteer');2const beforeScreenshot = require('./storybook-root-configuration.js').beforeScreenshot;3(async () => {4  const browser = await puppeteer.launch();5  const page = await browser.newPage();6  await beforeScreenshot(page, { kind: 'Button', story: 'Primary' });7  await page.screenshot({ path: 'button.png' });8  await browser.close();9})();

Using AI Code Generation

1const { beforeScreenshot } = require('@storybook/addon-storyshots-puppeteer');2const { setDefaultOptions } = require('expect-puppeteer');3const { afterScreenshot } = require('@storybook/addon-storyshots-puppeteer');4const { compareScreenshot } = require('@storybook/addon-storyshots-puppeteer');5const { toMatchImageSnapshot } = require('jest-image-snapshot');6const { getMatchImageSnapshotOptions } = require('jest-image-snapshot');7const { toMatchDiffSnapshot } = require('jest-image-snapshot');8const { getMatchDiffSnapshotOptions } = require('jest-image-snapshot');9const { toMatchImageSnapshot } = require('jest-image-snapshot');10const { getMatchImageSnapshotOptions } = require('jest-image-snapshot');11const { toMatchDiffSnapshot } = require('jest-image-snapshot');12const { getMatchDiffSnapshotOptions } = require('jest-image-snapshot');13const { toMatchImageSnapshot } = require('jest-image-snapshot');14const { getMatchImageSnapshotOptions } = require('jest-image-snapshot');15const { toMatchDiffSnapshot } = require('jest-image-snapshot');16const { getMatchDiffSnapshotOptions } = require('jest-image-snapshot');17const { toMatchImageSnapshot } = require('jest-image-snapshot');

Using AI Code Generation

1const { storybookRoot } = require('@applitools/eyes-storybook');2const { storybookRoot } = require('@applitools/eyes-storybook');3const { beforeScreenshot } = storybookRoot;4const { Eyes, Target } = require('@applitools/eyes-webdriverio');5describe('Storybook', () => {6  it('should work', async () => {7    const eyes = new Eyes();8    await eyes.open(browser, 'Storybook', 'Test Storybook', {width: 800, height: 600});9    await eyes.check('Test Storybook', Target.window().fully());10    await eyes.close();11  });12});13const { storybookRoot } = require('@applitools/eyes-storybook');14const { beforeScreenshot } = storybookRoot;15const { Eyes, Target } = require('@applitools/eyes-webdriverio');16describe('Storybook', () => {17  it('should work', async () => {18    const eyes = new Eyes();19    await eyes.open(browser, 'Storybook', 'Test Storybook', {width: 800, height: 600});20    await eyes.check('Test Storybook', Target.window().fully());21    await eyes.close();22  });23});24const { storybookRoot } = require('@applitools/eyes-storybook');25const { beforeScreenshot } = storybookRoot;26const { Eyes, Target } = require('@applitools/eyes-webdriverio');27describe('Storybook', () => {28  it('should work', async () => {29    const eyes = new Eyes();30    await eyes.open(browser, 'Storybook', 'Test Storybook', {width: 800, height: 600});31    await eyes.check('Test Storybook', Target.window().fully());32    await eyes.close();33  });34});35const { storybookRoot } = require('@applitools/eyes-storybook');36const { beforeScreenshot } = storybookRoot

Using AI Code Generation

1const { beforeScreenshot } = require('storybook-chrome-screenshot');2const path = require('path');3beforeScreenshot(async (page, { context }) => {4  const browser = context.browser;5  const page = context.page;6  const client = context.client;7  const device = context.device;8  const dimensions = context.dimensions;9  const viewport = context.viewport;10  const url = context.url;11  const story = context.story;12  const kind = context.kind;13  const name = context.name;14});15"scripts": {16}17module.exports = {18};19import { configure, addDecorator } from '@storybook/react';20import { withScreenshot } from 'storybook-chrome-screenshot';21addDecorator(withScreenshot());22module.exports = (baseConfig, env, config) => {23  config.module.rules.push({24      {25        options: {26        }27      }28  });29  return config;30};31import 'storybook-chrome-screenshot/register';

Using AI Code Generation

1import { getStorybook, configure } from '@storybook/react';2import { setOptions } from '@storybook/addon-options';3import { setDefaults } from 'storybook-addon-visual-regression';4const req = require.context('../src', true, /\.stories\.(js|mdx)$/);5function loadStories() {6  req.keys().forEach(filename => req(filename));7}8setOptions({9});10setDefaults({11  viewport: { width: 800, height: 600 },12  beforeScreenshot: async (page, { context }) => {13    const storybook = await getStorybook();14    const story = storybook.find(s => s.kind === context.kind)[0];15    const element = await page.$(story.parameters.storybookRootSelector);16    await page.evaluate(element => {17      element.scrollIntoView({ behavior: 'smooth', block: 'center', inline: 'center' });18    }, element);19  },20});21configure(loadStories, module);22import { configure } from '@storybook/react';23import { setOptions } from '@storybook/addon-options';24setOptions({25});26function loadStories() {27  require('../src/stories');28}29configure(loadStories, module);30const path = require('path');31module.exports = async ({ config, mode }) => {32  config.module.rules.push({33    loaders: [require.resolve('@storybook/addon-storysource/loader')],34  });35  config.resolve.alias = {36    'storybook-addon-visual-regression': path.resolve(__dirname, '../src'),37  };38  return config;39};40import '@storybook/addon-actions/register';41import '@storybook/addon-knobs/register';42import '@storybook/addon-storysource/register';43import 'storybook-addon-visual-regression/register';

Using AI Code Generation

1const beforeScreenshot = require('storybook-root/beforeScreenshot');2const afterScreenshot = require('storybook-root/afterScreenshot');3const screenshot = require('storybook-root/screenshot');4describe('test', () => {5  beforeAll(async () => {6    await beforeScreenshot();7  });8  afterAll(async () => {9    await afterScreenshot();10  });11  it('should take screenshot', async () => {12    await screenshot('component-name');13  });14});15const { setDefaultOptions } = require('expect-puppeteer');16const { launchBrowser, launchStorybook } = require('./launch');17let browser;18let page;19module.exports = async () => {20  browser = await launchBrowser();21  page = await browser.newPage();22  await page.setViewport({ width: 1920, height: 1080 });23  await launchStorybook(page);24  setDefaultOptions({ timeout: 0 });25};26const { toMatchImageSnapshot } = require('jest-image-snapshot');27expect.extend({ toMatchImageSnapshot });28let browser;29module.exports = async () => {30  await browser.close();31};32const { toMatchImageSnapshot } = require('jest-image-snapshot');33expect.extend({ toMatchImageSnapshot });34const screenshot = async (componentName) => {35  const screenshot = await page.screenshot();36  expect(screenshot).toMatchImageSnapshot({37  });38};39module.exports = screenshot;40const puppeteer = require('puppeteer');

Using AI Code Generation

1import { getStorybookUI, configure } from '@storybook/react-native';2import { addDecorator } from '@storybook/react-native';3import { beforeScreenshot } from 'storybook-root';4configure(() => {5  require('./stories');6}, module);7const StorybookUIRoot = getStorybookUI({ port: 7007, host: 'localhost' });8addDecorator(beforeScreenshot);9export default StorybookUIRoot;10import { View } from 'react-native';11import { getStorybookUI, configure } from '@storybook/react-native';12import { addDecorator } from '@storybook/react-native';13import { beforeScreenshot } from 'storybook-root';14configure(() => {15  require('./stories');16}, module);17const StorybookUIRoot = getStorybookUI({ port: 7007, host: 'localhost' });18addDecorator(beforeScreenshot);19export default StorybookUIRoot;20import { storiesOf } from '@storybook/react-native';21import { beforeScreenshot } from 'storybook-root';22storiesOf('Button', module)23  .addDecorator(beforeScreenshot)24  .add('with text', () => <Button>Hello Button</Button>)25  .add('with some emoji', () => (26  ));

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.