Sitespeed.io preScript for logging in using username+password before running tests.

login.js

module.exports = {
  run(context) {
    return context.runWithDriver((driver) => {
      return driver.get(context.options.loginUrl)
        .then(() => {
          const webdriver = context.webdriver;
          const until = webdriver.until;
          const By = webdriver.By;

          const userName = context.options.username || 'admin';
          const password = context.options.password || 'password';

          driver.findElement(By.css(context.options.usernameFieldCSS || 'input[name="username"]')).sendKeys(userName);
          driver.findElement(By.css(context.options.passwordFieldCSS || 'input[name="password"][type="password"]')).sendKeys(password);
          const loginButton = driver.findElement(By.css(context.options.loginButtonCSS || '[type="submit"]')).click();

          return driver.wait(until.elementLocated(By.css(context.options.postLoginSelectors)), 10000);
        });
    })
  }
};