public void addItem(String item) {
        PrimeSelenium.executeScript(getWidgetByIdScript() + ".addItem('" + item + "');");
    }
Adds an item to the input field. Especially useful in 'multiple' mode.

@param item the item to add to the tokens
primefaces-selenium/primefaces-selenium-components/src/main/java/org/primefaces/selenium/component/AutoComplete.java