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metamask-extension/test/e2e/webdriver/firefox.js

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const fs = require('fs');
const os = require('os');
const path = require('path');
const { Builder, By, until } = require('selenium-webdriver');
const firefox = require('selenium-webdriver/firefox');
const proxy = require('selenium-webdriver/proxy');
/**
* The prefix for temporary Firefox profiles. All Firefox profiles used for e2e tests
* will be created as random directories inside this.
*
* @type {string}
*/
const TEMP_PROFILE_PATH_PREFIX = path.join(os.tmpdir(), 'MetaMask-Fx-Profile');
/**
* Proxy host to use for HTTPS requests
*
* @type {string}
*/
const HTTPS_PROXY_HOST = '127.0.0.1:8000';
/**
* A wrapper around a {@code WebDriver} instance exposing Firefox-specific functionality
*/
class FirefoxDriver {
/**
* Builds a {@link FirefoxDriver} instance
*
* @param {object} options - the options for the build
* @param options.responsive
* @param options.port
* @returns {Promise<{driver: !ThenableWebDriver, extensionUrl: string, extensionId: string}>}
*/
static async build({ responsive, port }) {
const templateProfile = fs.mkdtempSync(TEMP_PROFILE_PATH_PREFIX);
const options = new firefox.Options().setProfile(templateProfile);
options.setProxy(proxy.manual({ https: HTTPS_PROXY_HOST }));
options.setAcceptInsecureCerts(true);
options.setPreference('browser.download.folderList', 2);
options.setPreference(
'browser.download.dir',
`${process.cwd()}/test-artifacts/downloads`,
);
const builder = new Builder()
.forBrowser('firefox')
.setFirefoxOptions(options);
if (port) {
const service = new firefox.ServiceBuilder().setPort(port);
builder.setFirefoxService(service);
}
const driver = builder.build();
const fxDriver = new FirefoxDriver(driver);
const extensionId = await fxDriver.installExtension('dist/firefox');
const internalExtensionId = await fxDriver.getInternalId();
if (responsive) {
await driver.manage().window().setRect({ width: 320, height: 600 });
}
return {
driver,
extensionId,
extensionUrl: `moz-extension://${internalExtensionId}`,
};
}
/**
* @param {!ThenableWebDriver} driver - a {@code WebDriver} instance
*/
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constructor(driver) {
this._driver = driver;
}
/**
* Installs the extension at the given path
*
* @param {string} addonPath - the path to the unpacked extension or XPI
* @returns {Promise<string>} the extension ID
*/
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async installExtension(addonPath) {
return await this._driver.installAddon(addonPath, true);
}
/**
* Returns the Internal UUID for the given extension
*
* @returns {Promise<string>} the Internal UUID for the given extension
*/
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async getInternalId() {
await this._driver.get('about:debugging#addons');
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return await this._driver
.wait(
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until.elementLocated(By.xpath("//dl/div[contains(., 'UUID')]/dd")),
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1000,
)
.getText();
}
}
module.exports = FirefoxDriver;