AddNullArticleTest
waitForElementPresent //input[@value='Add Article']
clickAndWait //input[@value='Add Article']
pause 5000
waitForElementPresent _15_title
typeKeys _15_title Null Test Article
type _15_title Null Test Article
waitForElementPresent //input[@value='Save and Approve']
clickAndWait //input[@value='Save and Approve']
assertTextPresent You have entered invalid data. Please try again.
waitForElementPresent //input[@value='Cancel']
clickAndWait //input[@value='Cancel']
waitForElementPresent link=Articles
clickAndWait link=Articles
assertElementNotPresent link=Null Test Article