I\'ve been through the xpath tutorials and checked many other posts, hence I\'m not sure what I\'m missing. I\'m simply trying to find the following element by xpath:
your syntax is completely wrong....you need to give findelement to the driver
i.e your code will be :
WebDriver driver = new FirefoxDriver();
WebeElement element ;
element = driver.findElement(By.xpath("//[@test-id='test-username']");
// your xpath is: "//[@test-id='test-username']"
i suggest try this :"//*[@test-id='test-username']"