Like the Anonymous One said, (and wasn't this an answer to an earlier question you had about Test::More?): Don't run your tests with perl foo.t. Test::More is meant to be used inside a testing harness such as is provided by prove. use prove.

$ prove -lr t/050-types.t 

t/050-types.t .. ok    
All tests successful.
Files=1, Tests=22,  0 wallclock secs ( 0.02 usr  0.00 sys +  0.07 cusr
+  0.00 csys =  0.09 CPU)
Result: PASS
[download]

Also, use note and diag and explain in tests, then the -v option to prove can be used to control your "debug" output as well as test output verbosity.