only list active plans on the front end

app/controllers/plans_controller.rb

@@ -8,7 +8,7 @@ module DiscoursePatrons
 
     def index
       begin
-        plans = ::Stripe::Plan.list
+        plans = ::Stripe::Plan.list(active: true)
 
         render_json_dump plans.data
 

spec/requests/plans_controller_spec.rb

@@ -5,8 +5,8 @@ require 'rails_helper'
 module DiscoursePatrons
   RSpec.describe PlansController do
     describe "index" do
-      it "lists the plans" do
-        ::Stripe::Plan.expects(:list)
+      it "lists the active plans" do
+        ::Stripe::Plan.expects(:list).with(active: true)
         get "/patrons/plans.json"
       end
     end