Merge pull request #330 from stripe/brandur-stripe-object-deleted

Add `StripeObject#deleted?`

lib/stripe/stripe_object.rb

@@ -34,6 +34,13 @@ module Stripe
       @values == other.instance_variable_get(:@values)
     end
 
+    # Indicates whether or not the resource has been deleted on the server.
+    # Note that some, but not all, resources can indicate whether they have
+    # been deleted.
+    def deleted?
+      @values.fetch(:deleted, false)
+    end
+
     def to_s(*args)
       JSON.pretty_generate(@values)
     end

test/stripe/stripe_object_test.rb

@@ -11,6 +11,17 @@ module Stripe
       refute obj1 == obj3
     end
 
+    should "implement #deleted?" do
+      obj = Stripe::StripeObject.construct_from({})
+      refute obj.deleted?
+
+      obj = Stripe::StripeObject.construct_from({ :deleted => false })
+      refute obj.deleted?
+
+      obj = Stripe::StripeObject.construct_from({ :deleted => true })
+      assert obj.deleted?
+    end
+
     should "implement #respond_to" do
       obj = Stripe::StripeObject.construct_from({ :id => 1, :foo => 'bar' })
       assert obj.respond_to?(:id)