Lovely Professional University,

The generation of test cases is the most challenging part of software testing phase for the software tester. Test cases are such that as it unable the detection of errors. To determine how much software testing is enough is a difficult job. Testing is advisable to identify the risk against the cost of additional testing effort. To assign priorities to test cases will guarantee that the main tests have been done. The main objective of software testing is to identify defects and correcting those defects improves Software Quality. This paper represents a noble approach to automatic generation of test cases. In this approach, UML sequence diagram is the source to generate the test cases by convert it to sequence diagram graph to further generate the test paths. Then the test paths are prioritizing by using the Genetic Algorithm along with Tab