ARIA 1.0 Live Region Event Test Case: Add text content  (ALERT role)
    
    
    
    
    
    
    Description
    An element with an role attribute with the value "alert" has a text content added
    1.5 seconds after the document is loaded.
    
    Expected Results
    
    
      - ATK/AT-SPI
- ATK/AT-SPIevent: text_changed::insert event
- AXAPI
- AXLiveRegionChanged notification
- MSAA + IAccessible2
- IAccessible2: IA2_EVENT_TEXT_INSERTED event
- MSAA + UIA Express
- TextPattern..::.TextChangedEvent event