Add some new delegators in Test class:

* #remote (delegates to env.remote)
* #fs (delegates to env.remote.fs)

lib/producer/core/tests/has_env.rb

@@ -3,7 +3,7 @@ module Producer
     module Tests
       class HasEnv < Test
         def verify
-          env.remote.environment.key? arguments.first.to_s.upcase
+          remote.environment.key? arguments.first.to_s.upcase
         end
       end
     end

lib/producer/core/tests/has_file.rb

@@ -3,7 +3,7 @@ module Producer
     module Tests
       class HasFile < Test
         def verify
-          env.remote.fs.file? arguments.first
+          fs.file? arguments.first
         end
       end
     end