Output via diag() does not get suppressed by make test (as produced for me):

# Testing HTTP::Request::FromCurl 0.52, Perl 5.024000
# Algorithm::Loops 1.032
# AutoLoader 5.74
# Carp 1.50
...
# warnings::register 1.04
t/00-load.t .................. ok
# Testing with curl version '7.52.1'

[download]

I think output from STDERR does not get suppressed in general, but I'm less certain about that.

In reply to Re: Increase verbosity of "make test" by Corion
in thread Increase verbosity of "make test" by bliako

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