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261 lines
9.3 KiB
261 lines
9.3 KiB
const fs = require('fs')
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const path = require('path')
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const mkdirp = require('mkdirp')
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const pify = require('pify')
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const assert = require('assert')
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const {
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delay,
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getExtensionIdChrome,
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getExtensionIdFirefox,
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buildChromeWebDriver,
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buildFirefoxWebdriver,
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installWebExt,
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} = require('./func')
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const { until } = require('selenium-webdriver')
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const fetchMockResponses = require('./fetch-mocks.json')
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const tinyDelayMs = 200
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const regularDelayMs = tinyDelayMs * 2
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const largeDelayMs = regularDelayMs * 2
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module.exports = {
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assertElementNotPresent,
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checkBrowserForConsoleErrors,
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closeAllWindowHandlesExcept,
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findElement,
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findElements,
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loadExtension,
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openNewPage,
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switchToWindowWithTitle,
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switchToWindowWithUrlThatMatches,
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verboseReportOnFailure,
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waitUntilXWindowHandles,
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setupFetchMocking,
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prepareExtensionForTesting,
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tinyDelayMs,
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regularDelayMs,
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largeDelayMs,
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}
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async function prepareExtensionForTesting ({ responsive } = {}) {
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let driver, extensionId, extensionUrl
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const targetBrowser = process.env.SELENIUM_BROWSER
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switch (targetBrowser) {
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case 'chrome': {
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const extPath = path.resolve('dist/chrome')
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driver = buildChromeWebDriver(extPath, { responsive })
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await delay(largeDelayMs)
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extensionId = await getExtensionIdChrome(driver)
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extensionUrl = `chrome-extension://${extensionId}/home.html`
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break
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}
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case 'firefox': {
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const extPath = path.resolve('dist/firefox')
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driver = buildFirefoxWebdriver({ responsive })
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await installWebExt(driver, extPath)
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await delay(largeDelayMs)
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extensionId = await getExtensionIdFirefox(driver)
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extensionUrl = `moz-extension://${extensionId}/home.html`
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break
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}
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default: {
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throw new Error(`prepareExtensionForTesting - unable to prepare extension for unknown browser "${targetBrowser}"`)
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}
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}
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// Depending on the state of the application built into the above directory (extPath) and the value of
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// METAMASK_DEBUG we will see different post-install behaviour and possibly some extra windows. Here we
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// are closing any extraneous windows to reset us to a single window before continuing.
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// wait an extra long time so any slow popups can trigger
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await delay(4 * largeDelayMs)
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const [tab1] = await driver.getAllWindowHandles()
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await closeAllWindowHandlesExcept(driver, [tab1])
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await driver.switchTo().window(tab1)
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await driver.get(extensionUrl)
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return { driver, extensionId, extensionUrl }
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}
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async function setupFetchMocking (driver) {
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// define fetchMocking script, to be evaluated in the browser
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function fetchMocking (fetchMockResponses) {
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window.origFetch = window.fetch.bind(window)
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window.fetch = async (...args) => {
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const url = args[0]
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if (url === 'https://ethgasstation.info/json/ethgasAPI.json') {
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return { json: async () => clone(fetchMockResponses.ethGasBasic) }
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} else if (url === 'https://ethgasstation.info/json/predictTable.json') {
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return { json: async () => clone(fetchMockResponses.ethGasPredictTable) }
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} else if (url.match(/chromeextensionmm/)) {
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return { json: async () => clone(fetchMockResponses.metametrics) }
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} else if (url === 'https://dev.blockscale.net/api/gasexpress.json') {
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return { json: async () => clone(fetchMockResponses.gasExpress) }
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}
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return window.origFetch(...args)
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}
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if (window.chrome && window.chrome.webRequest) {
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window.chrome.webRequest.onBeforeRequest.addListener(cancelInfuraRequest, {urls: ['https://*.infura.io/*']}, ['blocking'])
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}
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function cancelInfuraRequest (requestDetails) {
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console.log(`fetchMocking - Canceling request: "${requestDetails.url}"`)
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return { cancel: true }
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}
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function clone (obj) {
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return JSON.parse(JSON.stringify(obj))
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}
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}
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// fetchMockResponses are parsed last minute to ensure that objects are uniquely instantiated
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const fetchMockResponsesJson = JSON.stringify(fetchMockResponses)
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// eval the fetchMocking script in the browser
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await driver.executeScript(`(${fetchMocking})(${fetchMockResponsesJson})`)
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}
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async function loadExtension (driver, extensionId) {
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switch (process.env.SELENIUM_BROWSER) {
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case 'chrome': {
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await driver.get(`chrome-extension://${extensionId}/home.html`)
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break
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}
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case 'firefox': {
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await driver.get(`moz-extension://${extensionId}/home.html`)
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break
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}
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}
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}
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async function checkBrowserForConsoleErrors (driver) {
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const ignoredLogTypes = ['WARNING']
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const ignoredErrorMessages = [
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// React throws error warnings on "dataset", but still sets the data-* properties correctly
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'Warning: Unknown prop `dataset` on ',
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// Third-party Favicon 404s show up as errors
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'favicon.ico - Failed to load resource: the server responded with a status of 404 (Not Found)',
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// React Development build - known issue blocked by test build sys
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'Warning: It looks like you\'re using a minified copy of the development build of React.',
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// Redux Development build - known issue blocked by test build sys
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'This means that you are running a slower development build of Redux.',
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]
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const browserLogs = await driver.manage().logs().get('browser')
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const errorEntries = browserLogs.filter(entry => !ignoredLogTypes.includes(entry.level.toString()))
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const errorObjects = errorEntries.map(entry => entry.toJSON())
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return errorObjects.filter(entry => !ignoredErrorMessages.some(message => entry.message.includes(message)))
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}
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async function verboseReportOnFailure (driver, test) {
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let artifactDir
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if (process.env.SELENIUM_BROWSER === 'chrome') {
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artifactDir = `./test-artifacts/chrome/${test.title}`
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} else if (process.env.SELENIUM_BROWSER === 'firefox') {
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artifactDir = `./test-artifacts/firefox/${test.title}`
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}
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const filepathBase = `${artifactDir}/test-failure`
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await pify(mkdirp)(artifactDir)
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const screenshot = await driver.takeScreenshot()
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await pify(fs.writeFile)(`${filepathBase}-screenshot.png`, screenshot, { encoding: 'base64' })
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const htmlSource = await driver.getPageSource()
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await pify(fs.writeFile)(`${filepathBase}-dom.html`, htmlSource)
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}
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async function findElement (driver, by, timeout = 10000) {
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return driver.wait(until.elementLocated(by), timeout)
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}
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async function findElements (driver, by, timeout = 10000) {
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return driver.wait(until.elementsLocated(by), timeout)
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}
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async function openNewPage (driver, url) {
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await driver.executeScript('window.open()')
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await delay(1000)
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const handles = await driver.getAllWindowHandles()
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const lastHandle = handles[handles.length - 1]
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await driver.switchTo().window(lastHandle)
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await driver.get(url)
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await delay(1000)
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}
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async function waitUntilXWindowHandles (driver, x, delayStep = 1000, timeout = 5000) {
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let timeElapsed = 0
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async function _pollWindowHandles () {
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const windowHandles = await driver.getAllWindowHandles()
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if (windowHandles.length === x) {
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return
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}
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await delay(delayStep)
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timeElapsed += delayStep
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if (timeElapsed > timeout) {
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throw new Error('waitUntilXWindowHandles timed out polling window handles')
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} else {
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await _pollWindowHandles()
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}
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}
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return await _pollWindowHandles()
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}
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async function switchToWindowWithTitle (driver, title, windowHandles) {
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if (!windowHandles) {
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windowHandles = await driver.getAllWindowHandles()
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} else if (windowHandles.length === 0) {
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throw new Error('No window with title: ' + title)
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}
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const firstHandle = windowHandles[0]
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await driver.switchTo().window(firstHandle)
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const handleTitle = await driver.getTitle()
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if (handleTitle === title) {
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return firstHandle
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} else {
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return await switchToWindowWithTitle(driver, title, windowHandles.slice(1))
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}
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}
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/**
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* Closes all windows except those in the given list of exceptions
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* @param {object} driver the WebDriver instance
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* @param {string|Array<string>} exceptions the list of window handle exceptions
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* @param {Array?} windowHandles the full list of window handles
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* @returns {Promise<void>}
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*/
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async function closeAllWindowHandlesExcept (driver, exceptions, windowHandles) {
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exceptions = typeof exceptions === 'string' ? [ exceptions ] : exceptions
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windowHandles = windowHandles || await driver.getAllWindowHandles()
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const lastWindowHandle = windowHandles.pop()
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if (!exceptions.includes(lastWindowHandle)) {
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await driver.switchTo().window(lastWindowHandle)
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await delay(1000)
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await driver.close()
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await delay(1000)
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}
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return windowHandles.length && await closeAllWindowHandlesExcept(driver, exceptions, windowHandles)
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}
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async function assertElementNotPresent (webdriver, driver, by) {
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let dataTab
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try {
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dataTab = await findElement(driver, by, 4000)
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} catch (err) {
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assert(err instanceof webdriver.error.NoSuchElementError || err instanceof webdriver.error.TimeoutError)
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}
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assert.ok(!dataTab, 'Found element that should not be present')
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}
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async function switchToWindowWithUrlThatMatches (driver, regexp, windowHandles) {
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if (!windowHandles) {
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windowHandles = await driver.getAllWindowHandles()
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} else if (windowHandles.length === 0) {
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throw new Error('No window that matches: ' + regexp)
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}
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const firstHandle = windowHandles[0]
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await driver.switchTo().window(firstHandle)
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const windowUrl = await driver.getCurrentUrl()
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if (windowUrl.match(regexp)) {
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return firstHandle
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} else {
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return await switchToWindowWithUrlThatMatches(driver, regexp, windowHandles.slice(1))
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}
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}
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