Fix test suite

.travis.yml

@@ -17,7 +17,7 @@ sudo: false
 env:
   global:
     # If changing this number, please also change it in `test/test_helper.rb`.
-    - STRIPE_MOCK_VERSION=0.88.0
+    - STRIPE_MOCK_VERSION=0.89.0
 
 cache:
   directories:

test/stripe/price_test.rb

@@ -0,0 +1,48 @@
+# frozen_string_literal: true
+
+require ::File.expand_path("../test_helper", __dir__)
+
+module Stripe
+  class PriceTest < Test::Unit::TestCase
+    should "be listable" do
+      prices = Stripe::Price.list
+      assert_requested :get, "#{Stripe.api_base}/v1/prices"
+      assert prices.data.is_a?(Array)
+      assert prices.data[0].is_a?(Stripe::Price)
+    end
+
+    should "be retrievable" do
+      price = Stripe::Price.retrieve("price_123")
+      assert_requested :get, "#{Stripe.api_base}/v1/prices/price_123"
+      assert price.is_a?(Stripe::Price)
+    end
+
+    should "be creatable" do
+      price = Stripe::Price.create(
+        unit_amount: 5000,
+        currency: "usd",
+        recurring: {
+          interval: "month",
+        },
+        product_data: {
+          name: "Product name",
+        },
+      )
+      assert_requested :post, "#{Stripe.api_base}/v1/prices"
+      assert price.is_a?(Stripe::Price)
+    end
+
+    should "be saveable" do
+      price = Stripe::Price.retrieve("price_123")
+      price.metadata["key"] = "value"
+      price.save
+      assert_requested :post, "#{Stripe.api_base}/v1/prices/#{price.id}"
+    end
+
+    should "be updateable" do
+      price = Stripe::Price.update("price_123", metadata: { foo: "bar" })
+      assert_requested :post, "#{Stripe.api_base}/v1/prices/price_123"
+      assert price.is_a?(Stripe::Price)
+    end
+  end
+end

test/test_helper.rb

@@ -16,7 +16,7 @@
 require ::File.expand_path("stripe_mock", __dir__)
 
 # If changing this number, please also change it in `.travis.yml`.
-MOCK_MINIMUM_VERSION = "0.88.0"
+MOCK_MINIMUM_VERSION = "0.89.0"
 MOCK_PORT = Stripe::StripeMock.start
 
 # Disable all real network connections except those that are outgoing to