Lesson4 Junit ClassNotFound exception

[yuvald]

Hello.
First of all I loved the tutorial. Many thanks. I hit a brick wall trying to follow the 4th lesson.

I followed the instructions and when I try and run the PersonTest as a Junit test I get the following exception:
Class not found org.totalbeginner.tutorial?.PersonTest
java.lang.ClassNotFoundException: org.totalbeginner.tutorial?.PersonTest
… (Don't think that the full stack is needed here).

I searched the web and this forum and all I could gather is that I might miss something in the classpath.
I entered the run configuration for junit->PersonTest -> classpath(tab) user entries and added PersonTest.class jar.
Unfortunately, it did not solve the issue.

I'm using:
Eclipse IDE for Java Developers
Version: Helios Service Release 1
Build id: 20100917-0705

Thank you in advance
Yuval

[yuvald]

Managed to solve when I followed http://www.vogella.de/articles/JUnit/article.html#unittesting
I can't tell which part I got wrong the first time though.
Maybe missed the reference of the junit to the test directory.
Is it a good troubleshooting step to put everything in the same folder?
thanks.
Yuval