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81 lines
2.6 KiB
81 lines
2.6 KiB
const { Browser } = require('selenium-webdriver');
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const fetchMockResponses = require('../../data/fetch-mocks.json');
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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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async function buildWebDriver({ responsive, port } = {}) {
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const browser = process.env.SELENIUM_BROWSER;
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const {
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driver: seleniumDriver,
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extensionId,
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extensionUrl,
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} = await buildBrowserWebDriver(browser, { responsive, port });
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await setupFetchMocking(seleniumDriver);
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const driver = new Driver(seleniumDriver, browser, extensionUrl);
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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: ${browser}`);
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}
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}
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}
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async function setupFetchMocking(driver) {
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// define fetchMocking script, to be evaluated in the browser
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function fetchMocking(mockResponses) {
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window.origFetch = window.fetch.bind(window);
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window.fetch = async (...args) => {
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const url = args[0];
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// api.metaswap.codefi.network/gasPrices
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if (
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url.match(/^http(s)?:\/\/api\.metaswap\.codefi\.network\/gasPrices/u)
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) {
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return { json: async () => clone(mockResponses.gasPricesBasic) };
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} else if (url.match(/chromeextensionmm/u)) {
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return { json: async () => clone(mockResponses.metametrics) };
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} else if (url.match(/^https:\/\/(api2\.metaswap\.codefi\.network)/u)) {
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if (url.match(/featureFlags$/u)) {
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return { json: async () => clone(mockResponses.swaps.featureFlags) };
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}
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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(
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cancelInfuraRequest,
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{ urls: ['https://*.infura.io/*'] },
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['blocking'],
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);
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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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