Help with Testing custom Report Plugin

[Ryan Connolly]

Hello,
     I have been following along the process describing how to write a
custom maven report plugin write your own report
plugin<http://docs.codehaus.org/display/MAVENUSER/Write+your+own+report+plugin>
but
I am getting stuck at the point of testing my new plugin.  In my unit test I
am calling the executeReport(Locale.getDefault()); method but am running
into a NPE when getSink() is called.  Does anyone know of any docs outlining
how to test a custom reporting plugin?

Thanks,
-Ryan