Implement recipe evaluation feature

features/recipe.feature

@@ -0,0 +1,10 @@
+Feature: recipe evaluation
+
+  Scenario: evaluates ruby code in a recipe
+    Given a recipe with:
+      """
+      puts 'hello from recipe'
+      """
+    When I execute the recipe
+    Then the exit status must be 0
+    And the output must contain "hello from recipe"

features/steps/recipe_steps.rb

@@ -0,0 +1,7 @@
+Given(/^a recipe with:$/) do |recipe_body|
+  write_file 'recipe.rb', recipe_body
+end
+
+When(/^I execute the recipe$/) do
+  run_simple('producer localhost recipe.rb', false)
+end