Add basic invoices setup

spec/strike_me/api/invoices_spec.rb

@@ -0,0 +1,40 @@
+# frozen_string_literal: true
+
+RSpec.describe StrikeMe::API::Invoices do
+  subject { described_class.new }
+
+  describe 'list' do
+    context 'success response' do
+      before { stub_request(:get, 'https://api.strike.me/v1/invoices').to_return(status: 200, body: '{"items":[{"invoiceId":"97dca64c-6dde-4a87-b970-279f1a8e0ac5","amount":{"amount":"0.00014","currency":"BTC"},"state":"PAID","created":"2025-08-08T22:28:44.195825+00:00","description":"Hi there","issuerId":"41952e07-483c-4cd7-afa4-b6a8ec729809","receiverId":"41952e07-483c-4cd7-afa4-b6a8ec729809","payerId":"f75c22bf-625f-4c47-acdf-acb9c596bb8c"},{"invoiceId":"aed2cbf7-e2cd-4a1c-874e-a84489342ac2","amount":{"amount":"8.00","currency":"USD"},"state":"PAID","created":"2025-07-31T22:24:19.302922+00:00","description":"","issuerId":"a34a9cdc-1853-4f3b-9bd8-66d6700b1558","receiverId":"a34a9cdc-1853-4f3b-9bd8-66d6700b1558","payerId":"f75c22bf-625f-4c47-acdf-acb9c596bb8c"},{"invoiceId":"4773efeb-9aa7-47a0-a3cc-0a57a3f7718a","amount":{"amount":"0.00047455","currency":"BTC"},"state":"PAID","created":"2025-07-10T23:22:28.324613+00:00","description":"","issuerId":"a34a9cdc-1853-4f3b-9bd8-66d6700b1558","receiverId":"a34a9cdc-1853-4f3b-9bd8-66d6700b1558","payerId":"f75c22bf-625f-4c47-acdf-acb9c596bb8c"},{"invoiceId":"f3853f94-d198-4b83-8b9a-11a836926819","amount":{"amount":"40.00","currency":"USDT"},"state":"UNPAID","created":"2023-05-20T22:44:36.856775+00:00","description":"","issuerId":"f75c22bf-625f-4c47-acdf-acb9c596bb8c","receiverId":"f75c22bf-625f-4c47-acdf-acb9c596bb8c"}],"count":4,"isCountUnknown":false}', headers: {'Content-Type' => 'application/json'}) }
+
+      it '...' do
+        list = subject.list
+        expect(list.first).to     be_paid
+        expect(list.last ).not_to be_paid
+
+        expect(list.first.attributes).to eq(
+          'invoiceId'   => '97dca64c-6dde-4a87-b970-279f1a8e0ac5',
+          'amount'      => {'amount' => '0.00014', 'currency' => 'BTC'},
+          'state'       => 'PAID',
+          'created'     => '2025-08-08 22:28:44.195825 +0000', # is actual Time
+          'description' => 'Hi there',
+          'issuerId'    => '41952e07-483c-4cd7-afa4-b6a8ec729809',
+          'receiverId'  => '41952e07-483c-4cd7-afa4-b6a8ec729809',
+          'payerId'     => 'f75c22bf-625f-4c47-acdf-acb9c596bb8c'
+        )
+        expect(list.first.created).to be_a Time
+
+        expect(list.last.attributes).to eq(
+          'invoiceId'   => 'f3853f94-d198-4b83-8b9a-11a836926819',
+          'amount'      => {'amount' => '40.00', 'currency' => 'USDT'},
+          'state'       => 'UNPAID',
+          'created'     => '2023-05-20 22:44:36.856775 +0000',
+          'description' => '',
+          'issuerId'    => 'f75c22bf-625f-4c47-acdf-acb9c596bb8c',
+          'receiverId'  => 'f75c22bf-625f-4c47-acdf-acb9c596bb8c',
+          'payerId'     => nil
+        )
+      end
+    end
+  end
+end