add payment

spec/fixtures/payment.json

@@ -0,0 +1,14 @@
+{
+  "amount": {
+    "value": "10.00",
+    "currency": "RUB"
+  },
+  "payment_method_data": {
+    "type": "bank_card"
+  },
+  "confirmation": {
+    "type": "redirect",
+    "return_url": "https://www.merchant-website.com/return_url"
+  },
+  "description": "Заказ №72"
+}

spec/yandex-checkout/payment_spec.rb

@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+RSpec.describe YandexCheckout::Payment do
+  describe '#make_payment' do
+    let(:settings) { { shop_id: 'SHOP_ID', api_key: 'API_KEY' } }
+    let(:idempotence_key) { 123 }
+    let(:payment) { described_class.new(settings) }
+    let(:params)   { { payment: File.read('spec/fixtures/payment.json') } }
+    let(:answer)   { { result: 'accepted' } }
+
+    before  { stub_request(:any, //).to_return(body: answer.to_json) }
+    subject { payment.create(params) }
+
+    context 'using ssl via POST:' do
+      let(:url) { 'https://payment.yandex.net/api/v3/payments' }
+
+      it 'sends a request' do
+        # binding.pry
+        subject
+        expect(a_request(:post, url)).to have_been_made
+      end
+
+      it 'returns success' do
+        expect(subject).to be_kind_of YandexCheckout::Response
+        expect(subject.result).to eq 'accepted'
+      end
+    end
+  end
+end

spec/yandex-checkout_spec.rb

@@ -1,9 +1,5 @@
 RSpec.describe YandexCheckout do
-  it "has a version number" do
+  it 'has a version number' do
     expect(YandexCheckout::VERSION).not_to be nil
   end
-
-  it "does something useful" do
-    expect(false).to eq(true)
-  end
 end