Replace to_hsh method, and add unit test for it

Signed-off-by: Clinton Wolfe <clintoncwolfe@gmail.com>

lib/inspec/input.rb

@@ -318,6 +318,21 @@ module Inspec
       !current_value.is_a? NO_VALUE_SET
     end
 
+    #--------------------------------------------------------------------------#
+    #                               Marshalling
+    #--------------------------------------------------------------------------#
+
+    def to_hash
+      as_hash = { name: name, options: {} }
+      %i{description title identifier type required value}.each do |field|
+        val = send(field)
+        next if val.nil?
+
+        as_hash[:options][field] = val
+      end
+      as_hash
+    end
+
     #--------------------------------------------------------------------------#
     #                           Value Type Coercion
     #--------------------------------------------------------------------------#

test/unit/inputs/input_test.rb

@@ -25,6 +25,28 @@ describe Inspec::Input do
     end
   end
 
+  describe "marshalling" do
+    it "should be able to represent an Input as a Hash" do
+      input = Inspec::Input.new("test_input",
+        value: 12,
+        title: "Best input ever",
+        description: "important",
+        type: "Numeric",
+        required: true
+      )
+      _(input.to_hash).must_equal({
+        name: "test_input",
+        options: {
+        value: 12,
+        title: "Best input ever",
+        description: "important",
+        type: "Numeric",
+        required: true
+        }
+      })
+    end
+  end
+
   #==============================================================#
   #                   Setting Value - One Shot
   #            (see events_test.rb for overwrite support)