I've been working on a large project and using unit tests heavily.
I very much like the idea of Test::NoWarnings, except for two minor quibbles:

• I find the name confusing. To me, 'NoWarnings' makes me think 'ignore warnings'. The module does exactly the opposite.
• I didn't like having to remember to add one to the number of tests.

So instead I opted to make all warnings fatal

package WarningsDie;
use strict;
use warnings;
use Carp;
# confess for warnings and death
BEGIN {
    $SIG{__WARN__} = sub {confess $_[0]};
    $SIG{__DIE__} = sub {confess $_[0]};
}
1;
[download]

and included this module in Test::Harness

$ENV{HARNESS_PERL_SWITCHES} = "-Iblah/blah/blah -MWarningsDie";
[download]

Every test and module starts with  use strict and  use warnings.

My meditation:

it is comforting to use the test suite to rid your modules of warnings; give it a try.

rkg

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