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72 lines
2.5 KiB
72 lines
2.5 KiB
const { Browser } = require('selenium-webdriver')
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const Driver = require('./driver')
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const ChromeDriver = require('./chrome')
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const FirefoxDriver = require('./firefox')
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const fetchMockResponses = require('../../data/fetch-mocks.json')
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async function buildWebDriver ({ responsive, port } = {}) {
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const browser = process.env.SELENIUM_BROWSER
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const extensionPath = `dist/${browser}`
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const { driver: seleniumDriver, extensionId, extensionUrl } = await buildBrowserWebDriver(browser, { extensionPath, responsive, port })
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setupFetchMocking(seleniumDriver)
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const driver = new Driver(seleniumDriver, browser, extensionUrl)
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await driver.navigate()
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await driver.delay(1000)
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return {
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driver,
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extensionId,
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}
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}
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async function buildBrowserWebDriver (browser, webDriverOptions) {
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switch (browser) {
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case Browser.CHROME: {
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return await ChromeDriver.build(webDriverOptions)
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}
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case Browser.FIREFOX: {
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return await FirefoxDriver.build(webDriverOptions)
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}
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default: {
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throw new Error(`Unrecognized browser: ${browser}`)
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}
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}
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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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}
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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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module.exports = {
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buildWebDriver,
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}
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