This module hooks $SIG{__WARN__} and converts warnings to Test::More's
fail() calls. It is designed to be used with done_testing, when you don't
need to know the test count in advance.

Just as with Test::NoWarnings, this does not catch warnings if other things
localize $SIG{__WARN__}, as this is designed to catch unhandled warnings.

Homepage:
https://metacpan.org/release/Test-FailWarnings
