private void doSignIn(String username, String password) {
log.info("log in as username: {}", username);
BasePage basePage = new BasePage(driver);
basePage.deleteCookiesAndRefresh();
basePage.clickSignInLink()
.enterUsername(username)
.enterPassword(password)
.clickSignIn()
.waitForAMoment().until(new Predicate<WebDriver>() {
@Override