Function ok() compares values as strings which leads to stringification of
undef and throwing warning.
=tests plan => 4
ok(Devel::PPPort::HvNAME_get(\%Devel::PPPort::), 'Devel::PPPort');
=tests plan => 4
ok(Devel::PPPort::HvNAME_get(\%Devel::PPPort::), 'Devel::PPPort');
-ok(Devel::PPPort::HvNAME_get({}), undef);
+ok(!defined Devel::PPPort::HvNAME_get({}));
ok(Devel::PPPort::HvNAMELEN_get(\%Devel::PPPort::), length('Devel::PPPort'));
ok(Devel::PPPort::HvNAMELEN_get({}), 0);
ok(Devel::PPPort::HvNAMELEN_get(\%Devel::PPPort::), length('Devel::PPPort'));
ok(Devel::PPPort::HvNAMELEN_get({}), 0);