Merge remote-tracking branch 'origin/pull/60'

lib/stripe/api_operations/update.rb

@@ -5,6 +5,7 @@ module Stripe
         if @unsaved_values.length > 0
           values = {}
           @unsaved_values.each { |k| values[k] = @values[k] }
+          values.delete(:id)
           response, api_key = Stripe.request(:post, url, @api_key, values)
           refresh_from(response, api_key)
         end

test/test_stripe.rb

@@ -454,6 +454,15 @@ class TestStripeRuby < Test::Unit::TestCase
           s = c.delete_discount
           assert_equal nil, c.discount
         end
+
+        should "be able to update a customer without refreshing it first" do
+          @mock.expects(:post).once.with("#{Stripe.api_base}/v1/customers/test_customer", nil, 'mnemonic=bar').returns(test_response(test_customer({:mnemonic => "bar"})))
+          c = Stripe::Customer.new("test_customer")
+          c.mnemonic = "bar"
+          c.save
+          assert_equal c.mnemonic, "bar"
+        end
+
       end
 
       context "card tests" do