module for composable, reusable tests with roles and Moo

 Test::Roo allows you to compose Test::More tests from roles. It is inspired
 by the excellent Test::Routine module, but uses Moo instead of Moose. This
 gives most of the benefits without the need for Moose as a test dependency.
 .
 Test files are Moo classes. You can define any needed test fixtures as Moo
 attributes. You define tests as method modifiers -- similar in concept to
 "subtest" in Test::More, but your test method will be passed the test object
 for access to fixture attributes. You may compose any Moo::Role into your
 test to define attributes, require particular methods, or define tests.
 .
 This means that you can isolate test *behaviors* into roles which require
 certain test *fixtures* in order to run. Your main test file will provide the
 fixtures and compose the roles to run. This makes it easy to reuse test
 behaviors.
 .
 For example, if you are creating tests for Awesome::Module, you could create
 the test behaviors as Awesome::Module::Test::Role and distribute it with your
 module. If another distribution subclasses Awesome::Module, it can compose
 the Awesome::Module::Test::Role behavior for its own tests.
 .
 No more copying and pasting tests from a super class! Superclasses define and
 share their tests. Subclasses provide their own fixtures and run the tests.