Test::Builder::Tester vs. Test::Tester

[Nik Clayton]

As I write my first set of Test::Builder based tests I'm looking for a 
way to test the tests themselves, and make sure that they're doing the 
right thing.

A quick peruse of CPAN has thrown up Test::Builder::Tester and Test::Tester.
I've seen quite a few modules that use Test::Builder::Tester, 
Test::Tester's new to me.  Has anyone here used both, and able to report 
on the experience?

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