mirror of
https://github.com/scratchfoundation/scratch-www.git
synced 2024-12-24 22:42:23 -05:00
578 lines
22 KiB
JavaScript
578 lines
22 KiB
JavaScript
jest.setTimeout(30000); // eslint-disable-line no-undef
|
|
|
|
const webdriver = require('selenium-webdriver');
|
|
const {PageLoadStrategy} = require('selenium-webdriver/lib/capabilities');
|
|
const bindAll = require('lodash.bindall');
|
|
|
|
const headless = process.env.SMOKE_HEADLESS || false;
|
|
const remote = process.env.SMOKE_REMOTE || false;
|
|
const ciBuildPrefix = process.env.CI ?
|
|
`CI #${process.env.GITHUB_RUN_ID}/${process.env.GITHUB_RUN_ATTEMPT}` :
|
|
''; // no prefix if not in CI
|
|
const {SAUCE_USERNAME, SAUCE_ACCESS_KEY} = process.env;
|
|
const {By, Key, until} = webdriver;
|
|
|
|
// The main reason for this timeout is so that we can control the timeout message and report details;
|
|
// if we hit the Jasmine default timeout then we get a terse message that we can't control.
|
|
// The Jasmine default timeout is 30 seconds so make sure this is lower.
|
|
const DEFAULT_TIMEOUT_MILLISECONDS = 20 * 1000;
|
|
|
|
// This removes confusing `regenerator-runtime` noise from stack traces.
|
|
// This is V8-specific code. Please don't use it in a browser or any production code.
|
|
const oldPrepareStackTrace = Error.prepareStackTrace;
|
|
Error.prepareStackTrace = function (error, stack) {
|
|
stack = stack.filter(callsite => {
|
|
const filename = callsite.getFileName();
|
|
return filename && !filename.includes('regenerator-runtime');
|
|
});
|
|
if (oldPrepareStackTrace) {
|
|
return oldPrepareStackTrace(error, stack);
|
|
}
|
|
return [
|
|
`${error.constructor.name}: ${error.message}`,
|
|
...stack.map(callsite => ` at ${callsite.toString()}`)
|
|
].join('\n');
|
|
};
|
|
|
|
/**
|
|
* An error thrown by SeleniumHelper.
|
|
* @extends Error
|
|
*/
|
|
class SeleniumHelperError extends Error {
|
|
/**
|
|
* Instantiate a new SeleniumHelperError.
|
|
* @param {string} message The error message for this layer.
|
|
* @param {Array} [kvList] Optional keys & values to add to the error message, for example to capture arguments.
|
|
* @example
|
|
* const e = new SeleniumHelperError('something failed', [{xpath}, {somethingElse}])
|
|
* try {
|
|
* doThings();
|
|
* } catch (inner) {
|
|
* throw await e.chain(inner, driver);
|
|
* }
|
|
*/
|
|
constructor (message, kvList = []) {
|
|
const baseMessage = [
|
|
message,
|
|
...kvList.map(kv => ` ${Object.keys(kv)[0]}: ${Object.values(kv)[0]}`)
|
|
].join('\n');
|
|
super(baseMessage);
|
|
Object.setPrototypeOf(this, SeleniumHelperError.prototype); // see https://stackoverflow.com/a/41102306
|
|
this.name = 'SeleniumHelperError';
|
|
Error.captureStackTrace(this, this.constructor);
|
|
}
|
|
|
|
/**
|
|
* Add a new layer to the error chain.
|
|
* Collects context from the webdriver if it is present AND this is the innermost `SeleniumHelperError`.
|
|
* @param {Error|SeleniumHelperError} innerError The error to add to the chain.
|
|
* @param {webdriver.ThenableWebDriver} [driver] Optional webdriver instance to collect context from.
|
|
* @returns {Promise<SeleniumHelperError>} This error, with the new layer added.
|
|
*/
|
|
async chain (innerError, driver) {
|
|
const messageLines = [
|
|
this.message,
|
|
innerError.message
|
|
];
|
|
// If the inner error has already collected context, don't collect it again.
|
|
if (driver && !(innerError && innerError.collectContext)) {
|
|
await this.collectContext(messageLines, driver);
|
|
}
|
|
this.message = messageLines.join('\n');
|
|
return this;
|
|
}
|
|
|
|
/**
|
|
* Collect error context from the webdriver.
|
|
* @param {Array<string>} messageLines Add context lines to this array.
|
|
* @param {webdriver.ThenableWebDriver} driver The webdriver instance to collect context from.
|
|
* @returns {Promise} A promise that resolves when the context is collected.
|
|
*/
|
|
async collectContext (messageLines, driver) {
|
|
// It would be really nice to wait until `message` time to collect all this information,
|
|
// but that's not an option because of all these async calls.
|
|
const [
|
|
url,
|
|
title,
|
|
// pageSource,
|
|
logEntries
|
|
] = await Promise.all([
|
|
driver.getCurrentUrl(),
|
|
driver.getTitle(),
|
|
// driver.getPageSource(),
|
|
driver.manage()
|
|
.logs()
|
|
.get('browser')
|
|
]);
|
|
messageLines.push(
|
|
`Browser URL: ${url}`,
|
|
`Browser title: ${title}`,
|
|
'Browser logs:',
|
|
'*****',
|
|
...logEntries.map(entry => entry.message),
|
|
'*****'
|
|
// 'Browser page source:', '*****', pageSource, '*****'
|
|
);
|
|
}
|
|
}
|
|
|
|
class SeleniumHelper {
|
|
constructor () {
|
|
bindAll(this, [
|
|
'buildDriver',
|
|
'clickButton',
|
|
'clickCss',
|
|
'clickText',
|
|
'clickXpath',
|
|
'containsClass',
|
|
'dragFromXpathToXpath',
|
|
'findByCss',
|
|
'findByXpath',
|
|
'findText',
|
|
'getKey',
|
|
'getDriver',
|
|
'getLogs',
|
|
'getSauceDriver',
|
|
'isSignedIn',
|
|
'navigate',
|
|
'signIn',
|
|
'urlMatches',
|
|
'waitUntilDocumentReady',
|
|
'waitUntilGone'
|
|
]);
|
|
|
|
// Tests call this static function as if it were a method on an instance.
|
|
this.waitUntilVisible = SeleniumHelper.waitUntilVisible;
|
|
|
|
// this type declaration suppresses IDE type warnings throughout this file
|
|
/** @type {webdriver.ThenableWebDriver} */
|
|
this.driver = null;
|
|
}
|
|
|
|
/**
|
|
* Build a new webdriver instance. This will use Sauce Labs if the SMOKE_REMOTE environment variable is 'true', or
|
|
* `chromedriver` otherwise.
|
|
* @param {string} name The name to give to Sauce Labs.
|
|
* @returns {webdriver.ThenableWebDriver} The new webdriver instance.
|
|
*/
|
|
buildDriver (name) {
|
|
if (remote === 'true'){
|
|
let nameToUse;
|
|
if (ciBuildPrefix){
|
|
nameToUse = `${ciBuildPrefix}: ${name}`;
|
|
} else {
|
|
nameToUse = name;
|
|
}
|
|
this.driver = this.getSauceDriver(SAUCE_USERNAME, SAUCE_ACCESS_KEY, nameToUse);
|
|
} else {
|
|
this.driver = this.getDriver();
|
|
}
|
|
return this.driver;
|
|
}
|
|
|
|
/**
|
|
* Build a new webdriver instance using `chromedriver`.
|
|
* You should probably use `buildDriver` instead.
|
|
* @returns {webdriver.ThenableWebDriver} The new webdriver instance.
|
|
*/
|
|
getDriver () {
|
|
const chromeCapabilities = webdriver.Capabilities.chrome();
|
|
const args = [];
|
|
if (headless) {
|
|
args.push('--headless');
|
|
args.push('window-size=1024,1680');
|
|
args.push('--no-sandbox');
|
|
}
|
|
chromeCapabilities.set('chromeOptions', {args});
|
|
chromeCapabilities.setPageLoadStrategy(PageLoadStrategy.EAGER);
|
|
const driver = new webdriver.Builder()
|
|
.forBrowser('chrome')
|
|
.withCapabilities(chromeCapabilities)
|
|
.build();
|
|
return driver;
|
|
}
|
|
|
|
/**
|
|
* Build a new webdriver instance using Sauce Labs.
|
|
* You should probably use `buildDriver` instead.
|
|
* @param {string} username The Sauce Labs username.
|
|
* @param {string} accessKey The Sauce Labs access key.
|
|
* @param {string} name The name to give to Sauce Labs.
|
|
* @returns {webdriver.ThenableWebDriver} The new webdriver instance.
|
|
*/
|
|
getSauceDriver (username, accessKey, name) {
|
|
// Driver configs can be generated with the Sauce Platform Configurator
|
|
// https://wiki.saucelabs.com/display/DOCS/Platform+Configurator
|
|
const driverConfig = {
|
|
browserName: 'chrome',
|
|
platform: 'macOS 10.15'
|
|
};
|
|
const driver = new webdriver.Builder()
|
|
.withCapabilities({
|
|
browserName: driverConfig.browserName,
|
|
platform: driverConfig.platform,
|
|
version: driverConfig.version,
|
|
username: username,
|
|
accessKey: accessKey,
|
|
name: name
|
|
})
|
|
.usingServer(`http://${username}:${accessKey}@ondemand.saucelabs.com:80/wd/hub`)
|
|
.build();
|
|
return driver;
|
|
}
|
|
|
|
/**
|
|
* Retrieves a key string by name.
|
|
* @example
|
|
* getKey('ENTER') // => '\uE007'
|
|
* @param {string} keyName The name of the key to retrieve.
|
|
* @returns {string} The key.
|
|
*/
|
|
getKey (keyName) {
|
|
return Key[keyName];
|
|
}
|
|
|
|
/**
|
|
* Wait until the document is ready (i.e. the document.readyState is 'complete')
|
|
* @returns {Promise} A promise that resolves when the document is ready
|
|
*/
|
|
async waitUntilDocumentReady () {
|
|
const outerError = new SeleniumHelperError('waitUntilDocumentReady failed');
|
|
try {
|
|
await this.driver.wait(
|
|
async () => await this.driver.executeScript('return document.readyState;') === 'complete',
|
|
DEFAULT_TIMEOUT_MILLISECONDS
|
|
);
|
|
} catch (cause) {
|
|
throw await outerError.chain(cause, this.driver);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Navigate to the given URL and wait until the document is ready.
|
|
* The Selenium docs say the promise returned by `driver.get()` "will be resolved when the document has finished
|
|
* loading." In practice, that doesn't mean the page is ready for testing. I suspect it comes down to the
|
|
* difference between "interactive" and "complete" (or `DOMContentLoaded` and `load`).
|
|
* @param {string} url The URL to navigate to.
|
|
* @returns {Promise} A promise that resolves when the document is ready
|
|
*/
|
|
async navigate (url) {
|
|
const outerError = new SeleniumHelperError('navigate failed', [{url}]);
|
|
try {
|
|
await this.driver.get(url);
|
|
await this.waitUntilDocumentReady();
|
|
} catch (cause) {
|
|
throw await outerError.chain(cause, this.driver);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Find an element by xpath.
|
|
* @param {string} xpath The xpath to search for.
|
|
* @returns {Promise<webdriver.WebElement>} A promise that resolves to the element.
|
|
*/
|
|
async findByXpath (xpath) {
|
|
const outerError = new SeleniumHelperError('findByXpath failed', [{xpath}]);
|
|
try {
|
|
const el = await this.driver.wait(until.elementLocated(By.xpath(xpath)), DEFAULT_TIMEOUT_MILLISECONDS);
|
|
await this.driver.wait(el.isDisplayed(), DEFAULT_TIMEOUT_MILLISECONDS);
|
|
return el;
|
|
} catch (cause) {
|
|
throw await outerError.chain(cause, this.driver);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {webdriver.WebElement} element Wait until this element is gone (stale).
|
|
* @returns {Promise} A promise that resolves when the element is gone.
|
|
*/
|
|
async waitUntilGone (element) {
|
|
const outerError = new SeleniumHelperError('waitUntilGone failed', [{element}]);
|
|
try {
|
|
await this.driver.wait(until.stalenessOf(element), DEFAULT_TIMEOUT_MILLISECONDS);
|
|
} catch (cause) {
|
|
throw await outerError.chain(cause, this.driver);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Wait until an element can be found by the provided xpath, then click on it.
|
|
* @param {string} xpath The xpath to click.
|
|
* @returns {Promise} A promise that resolves when the element is clicked.
|
|
*/
|
|
async clickXpath (xpath) {
|
|
const outerError = new SeleniumHelperError('clickXpath failed', [{xpath}]);
|
|
try {
|
|
return await this.driver.wait(new webdriver.WebElementCondition(
|
|
'for element click to succeed',
|
|
async () => {
|
|
const element = await this.findByXpath(xpath);
|
|
if (!element) {
|
|
return null;
|
|
}
|
|
try {
|
|
await element.click();
|
|
return element;
|
|
} catch (e) {
|
|
if (e instanceof webdriver.error.ElementClickInterceptedError) {
|
|
// something is in front of the element we want to click
|
|
// probably the loading screen
|
|
// this is the main reason for using wait()
|
|
return null;
|
|
}
|
|
throw e;
|
|
}
|
|
}
|
|
), DEFAULT_TIMEOUT_MILLISECONDS);
|
|
} catch (cause) {
|
|
throw await outerError.chain(cause, this.driver);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Wait until an element can be found by the provided text, then click on it.
|
|
* @param {string} text The text to click.
|
|
* @returns {Promise} A promise that resolves when the element is clicked.
|
|
*/
|
|
async clickText (text) {
|
|
const outerError = new SeleniumHelperError('clickText failed', [{text}]);
|
|
try {
|
|
await this.clickXpath(`//*[contains(text(), '${text}')]`);
|
|
} catch (cause) {
|
|
throw await outerError.chain(cause, this.driver);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Wait until an element can be found by the provided text.
|
|
* @param {string} text The text to find.
|
|
* @returns {Promise<webdriver.WebElement>} The element containing the text.
|
|
*/
|
|
async findText (text) {
|
|
const outerError = new SeleniumHelperError('findText failed', [{text}]);
|
|
try {
|
|
return await this.driver.wait(
|
|
until.elementLocated(By.xpath(`//*[contains(text(), '${text}')]`)),
|
|
DEFAULT_TIMEOUT_MILLISECONDS
|
|
);
|
|
} catch (cause) {
|
|
throw await outerError.chain(cause, this.driver);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Wait until a button can be found by the provided text, then click on it.
|
|
* @param {string} text The button text to find and click.
|
|
* @returns {Promise} A promise that resolves when the button is clicked.
|
|
*/
|
|
async clickButton (text) {
|
|
const outerError = new SeleniumHelperError('clickButton failed', [{text}]);
|
|
try {
|
|
await this.clickXpath(`//button[contains(text(), '${text}')]`);
|
|
} catch (cause) {
|
|
throw await outerError.chain(cause, this.driver);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Wait until an element can be found by the provided CSS selector.
|
|
* @param {string} css The CSS selector to find.
|
|
* @returns {Promise<webdriver.WebElement>} The element matching the CSS selector.
|
|
*/
|
|
async findByCss (css) {
|
|
const outerError = new SeleniumHelperError('findByCss failed', [{css}]);
|
|
try {
|
|
return await this.driver.wait(until.elementLocated(By.css(css)), DEFAULT_TIMEOUT_MILLISECONDS);
|
|
} catch (cause) {
|
|
throw await outerError.chain(cause, this.driver);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Wait until an element can be found by the provided CSS selector, then click on it.
|
|
* @param {string} css The CSS selector to find and click.
|
|
* @returns {Promise} A promise that resolves when the element is clicked.
|
|
*/
|
|
async clickCss (css) {
|
|
const outerError = new SeleniumHelperError('clickCss failed', [{css}]);
|
|
try {
|
|
const el = await this.findByCss(css);
|
|
await el.click();
|
|
} catch (cause) {
|
|
throw await outerError.chain(cause, this.driver);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Wait until the two elements can be found, then drag from the first to the second.
|
|
* @param {string} startXpath The xpath to drag from.
|
|
* @param {string} endXpath The xpath to drag to.
|
|
* @returns {Promise} A promise that resolves when the drag is complete.
|
|
*/
|
|
async dragFromXpathToXpath (startXpath, endXpath) {
|
|
const outerError = new SeleniumHelperError('dragFromXpathToXpath failed', [{startXpath}, {endXpath}]);
|
|
try {
|
|
const startEl = await this.findByXpath(startXpath);
|
|
const endEl = await this.findByXpath(endXpath);
|
|
await this.driver.actions()
|
|
.dragAndDrop(startEl, endEl)
|
|
.perform();
|
|
} catch (cause) {
|
|
throw await outerError.chain(cause, this.driver);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @returns {string} The xpath to the login button, which is present only if signed out.
|
|
*/
|
|
getPathForLogin () {
|
|
return '//li[@class="link right login-item"]/a';
|
|
}
|
|
|
|
/**
|
|
* @returns {string} The xpath to the profile name, which is present only if signed in.
|
|
*/
|
|
getPathForProfileName () {
|
|
return '//span[contains(@class, "profile-name")]';
|
|
}
|
|
|
|
/**
|
|
* @returns {Promise<boolean>} True if the user is signed in, false otherwise.
|
|
* @throws {SeleniumHelperError} If the user's sign-in state cannot be determined.
|
|
*/
|
|
async isSignedIn () {
|
|
const outerError = new SeleniumHelperError('isSignedIn failed');
|
|
try {
|
|
const state = await this.driver.wait(
|
|
() => this.driver.executeScript(
|
|
`
|
|
if (document.evaluate(arguments[0], document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null)
|
|
.singleNodeValue) {
|
|
return 'signed in';
|
|
}
|
|
if (document.evaluate(arguments[1], document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null)
|
|
.singleNodeValue) {
|
|
return 'signed out';
|
|
}
|
|
`,
|
|
this.getPathForProfileName(),
|
|
this.getPathForLogin()
|
|
),
|
|
DEFAULT_TIMEOUT_MILLISECONDS
|
|
);
|
|
switch (state) {
|
|
case 'signed in':
|
|
return true;
|
|
case 'signed out':
|
|
return false;
|
|
default:
|
|
throw new Error('Could not determine whether or not user is signed in');
|
|
}
|
|
} catch (cause) {
|
|
throw await outerError.chain(cause, this.driver);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sign in on a `scratch-www` page.
|
|
* @param {string} username The username to sign in with.
|
|
* @param {string} password The password to sign in with.
|
|
* @returns {Promise} A promise that resolves when the user is signed in.
|
|
*/
|
|
async signIn (username, password) {
|
|
const outerError = new SeleniumHelperError('signIn failed', [
|
|
{username},
|
|
{password: password ? 'provided' : 'absent'}
|
|
]);
|
|
try {
|
|
await this.clickXpath(this.getPathForLogin());
|
|
const name = await this.findByXpath('//input[@id="frc-username-1088"]');
|
|
await name.sendKeys(username);
|
|
const word = await this.findByXpath('//input[@id="frc-password-1088"]');
|
|
await word.sendKeys(password + this.getKey('ENTER'));
|
|
await this.waitUntilDocumentReady();
|
|
await this.findByXpath(this.getPathForProfileName());
|
|
} catch (cause) {
|
|
throw await outerError.chain(cause, this.driver);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Wait until the URL matches the provided regex.
|
|
* @param {RegExp} regex The regex to match the url against.
|
|
* @returns {Promise} A promise that resolves when the url matches the regex.
|
|
*/
|
|
async urlMatches (regex) {
|
|
const outerError = new SeleniumHelperError('urlMatches failed', [{regex}]);
|
|
try {
|
|
await this.driver.wait(until.urlMatches(regex), DEFAULT_TIMEOUT_MILLISECONDS);
|
|
} catch (cause) {
|
|
throw await outerError.chain(cause, this.driver);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get selected browser log entries.
|
|
* @param {Array<string>} whitelist A list of log strings to allow.
|
|
* @returns {Promise<Array<webdriver.logging.Entry>>} A promise that resolves to the log entries.
|
|
*/
|
|
async getLogs (whitelist) {
|
|
const outerError = new SeleniumHelperError('getLogs failed', [{whitelist}]);
|
|
try {
|
|
const entries = await this.driver.manage()
|
|
.logs()
|
|
.get('browser');
|
|
return entries.filter(entry => {
|
|
const message = entry.message;
|
|
for (const element of whitelist) {
|
|
if (message.indexOf(element) !== -1) {
|
|
// eslint-disable-next-line no-console
|
|
// console.warn('Ignoring whitelisted error: ' + whitelist[i]);
|
|
return false;
|
|
} else if (entry.level !== 'SEVERE') { // WARNING: this doesn't do what it looks like it does!
|
|
// eslint-disable-next-line no-console
|
|
// console.warn('Ignoring non-SEVERE entry: ' + message);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
return true;
|
|
});
|
|
} catch (cause) {
|
|
throw await outerError.chain(cause, this.driver);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check if an element's class attribute contains a given class.
|
|
* @param {webdriver.WebElement} element The element to check.
|
|
* @param {string} cl The class to check for.
|
|
* @returns {Promise<boolean>} True if the element's class attribute contains the given class, false otherwise.
|
|
*/
|
|
async containsClass (element, cl) {
|
|
const outerError = new SeleniumHelperError('containsClass failed', [{element}, {cl}]);
|
|
try {
|
|
const classes = await element.getAttribute('class');
|
|
const classList = classes.split(' ');
|
|
return classList.includes(cl);
|
|
} catch (cause) {
|
|
throw await outerError.chain(cause, this.driver);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {webdriver.WebElement} element Wait until this element is visible.
|
|
* @param {webdriver.ThenableWebDriver} driver The webdriver instance.
|
|
* @returns {Promise} A promise that resolves when the element is visible.
|
|
*/
|
|
static async waitUntilVisible (element, driver) {
|
|
const outerError = new SeleniumHelperError('waitUntilVisible failed', [{element}]);
|
|
try {
|
|
await driver.wait(until.elementIsVisible(element), DEFAULT_TIMEOUT_MILLISECONDS);
|
|
} catch (cause) {
|
|
throw await outerError.chain(cause, driver);
|
|
}
|
|
}
|
|
}
|
|
|
|
module.exports = SeleniumHelper;
|