test_requires 'Test::Exception' => '0.31';
test_requires 'Test::More' => '0.94';
test_requires 'Test::Warn' => '0.21';
+test_requires 'Test::Deep' => '0.107';
+test_requires 'Test::Differences' => '0.60';
requires 'Carp::Clan' => 0;
requires 'Class::Accessor::Grouped' => '0.10008';