Test::More : diag versus note
I tend to add a lot of
self-explainatory messages within my single tests, so that once I run a single test I can see what is happening behind the hood and have a chance to understand (quicker) why a test is failing.
There are two main methods to this purpose:
Both seems to work the same, outputting to
STDERR, the given message, so play the same role as
say in command line application.
However, while
note is silenced when running in an harness (e.g.,
prove), the
diag output is always shown to the user. Therefore, the latter method should be used only for really important messages and not as a debug or internal echoing of stuff.