Add Env class

spec/producer/core/env_spec.rb

@@ -0,0 +1,14 @@
+require 'spec_helper'
+
+module Producer::Core
+  describe Env do
+    let(:recipe)  { Recipe.new(Proc.new { nil }) }
+    subject(:env) { Env.new(recipe) }
+
+    describe '#current_recipe' do
+      it 'returns the assigned current recipe' do
+        expect(env.current_recipe).to eq recipe
+      end
+    end
+  end
+end