How to debug methods called by JUnit in Eclipse?

Question

If I write a test class such as:

public class TryOut {

    public int doStuff()
    {
        System.out.println("Hello");
        int five = 5;
        return five * 2;
    }

    public static void main(String[] args)
    {
        TryOut myTryOut = new TryOut();
        myTryOut.doStuff();
    }
}

and use JUnit to test it

import static org.junit.Assert.*;

import org.junit.Test;

public class TryOutTest {

    @Test
    public void test() {

        TryOut myTryOut = new TryOut();
        int answer = myTryOut.doStuff();
        assertEquals(10, answer);
    }

}

What I want is to step through the code when JUnit is running. Is this possible? If I set a breakpoint on the method that gets called - doStuff() and then right click on the TryOutTest class, then Debug As, JUnit test menu options, (to run the code) the breakpoint never stops the code, and the test completes.

Answer 1

Make sure that your breakpoint is not skipped (in case you see a backslash on the breakpoint, it is skipped). In case it is skipped, press Ctrl+Alt+B to enable it.