unitTestSourcesPresent??

[Kumar, Vaidhyanatha K.]

How do I set the variable unitTestSourcesPresent?. For some reason, maven is not able 
to find my test source files.
Thanks
Vaidhy
----
test:prepare-filesystem:
 
test:test-resources:
 
test:compile:
    [echo] No test source files to compile.
 
test:test:
    [echo] No tests to run.
BUILD SUCCESSFUL
Total time:  6 seconds