code: private void isScrolledTo(String action, String expected) {
          WebElement webElement = getWebElement();
          long elementPosition = webElement.getLocation().getY();
          JavascriptExecutor js = (JavascriptExecutor) driver;
          int scrollHeight = ((Number) js.executeScript("return document.documentElement.scrollTop || document.body.scrollTop;")).intValue();
          int viewportHeight = ((Number) js.executeScript("return Math.max(document.documentElement.clientHeight, window.innerHeight || 0);")).intValue();
  
          if (elementPosition < scrollHeight || elementPosition > viewportHeight + scrollHeight) {
              reporter.fail(action, expected, prettyOutputStart() + " was scrolled to, but is not within the current viewport");
          } else {
              reporter.pass(action, expected, prettyOutputStart() + " is properly scrolled to and within the current viewport");
          }
      }
docs: Determines if the element scrolled towards is now currently displayed on the
  screen
  
  @param action   - what is the action occurring
  @param expected - what is the expected outcome of said action