Capture output in System.out

Hi All,

I am trying to write a code that would capture the output from System.out.println and then us this output to run a junit method assertEquals. basically theres one method that needs to be tested and output of that method is in form of system.out("a") and i want to compare "a" with excpected output.

Can anyone help me how shall i capture the output?

thanks
Venny

 

its a java question.. so shud be moved to Java forums

 

Do you know the answer btw ?

 

redirect output to a file and then use that file and a file pointer which can be used to compare or use getxxx() method where xxx means in or out to get output and store it in a string variable use it to compare....

 

goto to this one it might help u out...
http://blogs.sun.com/nickstephen/entry/java_redirecting_system_out_and

 

What I did is I redirected the output to PrintStream ps and then used method Sytem.setOut(ps); and then convereted ps to String..

PrintStream ps;
System.out.println("a");
System.setOut(ps);
ps.toString();

but unfortuantely ps.toString() is not giving me "a" as output..

Can you explain me where did i went wrong ?

 

printstream is output stream object it should be directly used with println() or print() and u r trying to set a object which is a stream "System.setOut(ps);" before doing tht casting of ps object is to be done cast ps to string by using toString() and then set output....code will be same but some changes
PrintStream ps;
System.out.println("a");
ps.toString();
System.setOut(ps);

try this....it might work but im bit unsure of use of printstream as i said its a output object and it has it's own syntax..

 

Thankyou for the response... but it seems the code is not working yet..
i am trying to capture output "a" to a string which i can later compare to another string and run my junit test case..