Thank you for the prompt response. Currently I am trying to build the source from git. I could build master branch without test successfully, but got test failures when running with tests. I thought 'master' branch was the one you are developing the source, that's why I built it. I'll try building 'develop'branch and check if same error still occurs.
I am currently trying to get familiar with the product and source. Once I get familiar with them, I'll start working on integrating jenkins. I believe that would be the 1st task in this project.
I'll be very glad if you can provide more details on testing infrastructure we need. I observed that there are number of unit tests that runs with product build, but still I don't have idea about how much of functionalities are covered by them. I would like to know what kind of improvements you currently have on your mind, so I can came up with a good proposal.