rename plan to offer

Author: lluis

lib/paymill/subscription.rb

@@ -3,7 +3,7 @@ class Subscription < Base
     include Paymill::Operations::Delete
     include Paymill::Operations::Update
 
-    attr_accessor :id, :plan, :livemode, :cancel_at_period_end, :canceled_at, :client, :trial_start, :trial_end
+    attr_accessor :id, :offer, :livemode, :cancel_at_period_end, :canceled_at, :client, :trial_start, :trial_end
 
     def parse_timestamps
       super

spec/paymill/subscription_spec.rb

@@ -3,7 +3,7 @@
 describe Paymill::Subscription do
   let(:valid_attributes) do
     {
-      plan:                 {
+      offer:                {
         name:     "Nerd special",
         amount:   123,
         interval: "week"
@@ -24,9 +24,9 @@
 
   describe "#initialize" do
     it "initializes all attributes correctly" do
-      subscription.plan[:name].should eql("Nerd special")
-      subscription.plan[:amount].should eql(123)
-      subscription.plan[:interval].should eql("week")
+      subscription.offer[:name].should eql("Nerd special")
+      subscription.offer[:amount].should eql(123)
+      subscription.offer[:interval].should eql("week")
       subscription.livemode.should be_false
       subscription.cancel_at_period_end.should be_false
       subscription.client[:email].should eql("[email protected]")