Uncovering errors during unit testing only, lessens the probability of the propagation of errors to other phases in a large number. While this fact is applied to object oriented software, it is understood that the fundamental units with object oriented software are precisely the classes and hence the classes need to be thoroughly tested to accomplish unit testing. Testing of a class is analogous to testing the methods defined as part of the class. While it is known that the various methodologies to testing conventional software are path testing, transaction flow testing, data flow testing et. al, an attempt has been made in the current work to use the data flow testing technique partially to come up with a novel proposal so as to help the independent unit tester decide on the most important methods for testing within the class. The strategy would assist the tester in deciding on the priority of methods to be tested and thereby save on the testing effort.