From 43b78055aa73535e6689f20f6e0a27e325560ae8 Mon Sep 17 00:00:00 2001
From: Jacqueline Xu <jacqueline@stripe.com>
Date: Tue, 1 Aug 2017 17:09:10 -0700
Subject: [PATCH] Add upcoming invoice subscription items test

---
 test/stripe/invoice_test.rb | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/test/stripe/invoice_test.rb b/test/stripe/invoice_test.rb
index fa23b0bc..1b5ebb00 100644
--- a/test/stripe/invoice_test.rb
+++ b/test/stripe/invoice_test.rb
@@ -73,6 +73,26 @@ module Stripe
         assert invoice.kind_of?(Stripe::Invoice)
       end
 
+      should "retrieve upcoming invoices with items" do
+        items = [{
+          plan: 'gold',
+          quantity: 2
+        }]
+
+        invoice = Stripe::Invoice.upcoming(
+          customer: "cus_123",
+          subscription_items: items
+        )
+
+        assert_requested :get, "#{Stripe.api_base}/v1/invoices/upcoming",
+          query: {
+            customer: "cus_123",
+            :'subscription_items[][plan]' => 'gold',
+            :'subscription_items[][quantity]' =>  2
+          }
+        assert invoice.kind_of?(Stripe::Invoice)
+      end
+
       should "be callable with an empty string" do
         invoice = Stripe::Invoice.upcoming(
           coupon: '',