Hi Michal,

Got your point.Those test cases are passing when they run along. But can fail when run all the tests. Some global parameters are set at the setup method as well as in side the test method. Have to unset them after doing assertion, I am working on this now. 
 
Regards,
--
Yasitha Pandithawatta 
Undergraduate
Computer Science and Engineering Department
University of Moratuwa
Sri Lanka