AddNullDocumentTest
waitForElementPresent link=Document Library Test Page
clickAndWait link=Document Library Test Page
clickAndWait //b
clickAndWait //b
clickAndWait //input[@value='Add Document']
waitForElementPresent link=Use the classic uploader.
click link=Use the classic uploader.
waitForElementPresent _20_title
typeKeys _20_title Null Document Test
type _20_title Null Document Test
type _20_description Null Document Test
clickAndWait //input[@value='Save']
assertTextPresent You have entered invalid data. Please try again.