In our application, we expect user input within a Thread as follows :
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
I want to pass that part in my unit test so that I can resume the thread to execute the rest of the code. How can I write something into System.in from junit?
What you want to do is use the method setIn() from System. This will let you pass data into System.in from junit.