model based automatic test case generation using UML sequence diagram

to generate automatic test cases using UML sequence diagram that modeled ATM PIN authentication system. prefer using c# or Java programming language. the tasks will be as following:- 1- generate UML sequence diagram for ATM PIN authentication. 2- generate the parser "XML file" for the sequence. 3- generate code to extract the XML tags that describe the sequence diagram. 4- generate a sequence diagram graph. 5- generate the test cases.