Improve features directory tree

features/tasks/task.feature

@@ -0,0 +1,26 @@
+Feature: tasks
+
+  Scenario: evaluates ruby code grouped in task blocks
+    Given a recipe with:
+      """
+      task :hello do
+        puts 'hello from recipe'
+      end
+      """
+    When I execute the recipe
+    Then the exit status must be 0
+    And the output must contain "hello from recipe"
+
+  Scenario: reports errors for invalid action calls in a task
+    Given a recipe with:
+      """
+      task 'some_task' do
+        invalid_action
+      end
+      """
+    When I execute the recipe
+    Then the exit status must be 70
+    And the output must match:
+      """
+      \Arecipe.rb:2:.+invalid task action `invalid_action'
+      """