Implement bitcoin donations via BTCPay

spec/jobs/btcpay_check_donation_job_spec.rb

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+require 'rails_helper'
+require 'webmock/rspec'
+
+RSpec.describe BtcpayCheckDonationJob, type: :job do
+  let(:user) { create :user, cn: 'jimmy', ou: 'kosmos.org' }
+
+  let(:donation) do
+    user.donations.create!(
+      donation_method: "btcpay", btcpay_invoice_id: "K4e31MhbLKmr3D7qoNYRd3",
+      paid_at: nil, payment_status: "processing",
+      fiat_amount: 120, fiat_currency: "USD"
+    )
+  end
+
+  after(:each) do
+    clear_enqueued_jobs
+    clear_performed_jobs
+  end
+
+  describe "invoice still processing" do
+    subject(:job) { described_class.perform_later(donation) }
+
+    before do
+      invoice = File.read("#{Rails.root}/spec/fixtures/btcpay/onchain_eur_processing_invoice.json")
+      payments = File.read("#{Rails.root}/spec/fixtures/btcpay/onchain_eur_processing_payments.json")
+      stub_request(:get, "http://btcpay.example.com/api/v1/stores/123456/invoices/K4e31MhbLKmr3D7qoNYRd3")
+        .to_return(status: 200, headers: {}, body: invoice)
+      stub_request(:get, "http://btcpay.example.com/api/v1/stores/123456/invoices/K4e31MhbLKmr3D7qoNYRd3/payment-methods")
+        .to_return(status: 200, headers: {}, body: payments)
+    end
+
+    it "enqueues itself to check again later" do
+      expect_any_instance_of(described_class).to receive(:re_enqueue_job).once
+      perform_enqueued_jobs { job }
+    end
+  end
+
+  describe "invoice settled" do
+    subject(:job) { described_class.perform_later(donation) }
+
+    before do
+      invoice = File.read("#{Rails.root}/spec/fixtures/btcpay/onchain_eur_settled_invoice.json")
+      payments = File.read("#{Rails.root}/spec/fixtures/btcpay/onchain_eur_settled_payments.json")
+      stub_request(:get, "http://btcpay.example.com/api/v1/stores/123456/invoices/K4e31MhbLKmr3D7qoNYRd3")
+        .to_return(status: 200, headers: {}, body: invoice)
+      stub_request(:get, "http://btcpay.example.com/api/v1/stores/123456/invoices/K4e31MhbLKmr3D7qoNYRd3/payment-methods")
+        .to_return(status: 200, headers: {}, body: payments)
+    end
+
+    it "updates the donation record" do
+      perform_enqueued_jobs { job }
+
+      donation.reload
+      expect(donation.paid_at).not_to be_nil
+      expect(donation.payment_status).to eq("settled")
+    end
+
+    it "does not enqueue itself again" do
+      expect_any_instance_of(described_class).not_to receive(:re_enqueue_job)
+      perform_enqueued_jobs { job }
+    end
+  end
+end