AddNullEntryTest
waitForElementPresent link=Message Boards
clickAtAndWait link=Message Boards
clickAtAndWait //b
waitForElementPresent //li[5]/span/a
clickAtAndWait //input[@value='Post New Thread']
waitForVisible _19_subject
typeKeys _19_subject Null Test Entr
type _19_subject Null Test Entry
type _19_textArea
clickAtAndWait //input[@value='Save']
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assertTextPresent Please enter a valid message.