chore: Add specs for stripe Webhooks endpoint (#5087)

spec/enterprise/services/enterprise/billing/handle_stripe_event_service_spec.rb

@@ -0,0 +1,60 @@
+require 'rails_helper'
+
+describe Enterprise::Billing::HandleStripeEventService do
+  subject(:stripe_event_service) { described_class }
+
+  let(:event) { double }
+  let(:data) { double }
+  let(:subscription) { double }
+  let!(:account) { create(:account, custom_attributes: { stripe_customer_id: 'cus_123' }) }
+
+  before do
+    allow(event).to receive(:data).and_return(data)
+    allow(data).to receive(:object).and_return(subscription)
+    allow(subscription).to receive(:[]).with('plan')
+                                       .and_return({
+                                                     'id' => 'test', 'product' => 'plan_id', 'name' => 'plan_name'
+                                                   })
+    allow(subscription).to receive(:[]).with('quantity').and_return('10')
+    allow(subscription).to receive(:customer).and_return('cus_123')
+    create(:installation_config, {
+             name: 'CHATWOOT_CLOUD_PLANS',
+             value: [
+               {
+                 'name' => 'Hacker',
+                 'product_id' => ['plan_id'],
+                 'price_ids' => ['price_1']
+               },
+               {
+                 'name' => 'Startups',
+                 'product_id' => ['plan_id_2'],
+                 'price_ids' => ['price_2']
+               }
+             ]
+           })
+  end
+
+  describe '#perform' do
+    it 'handle customer.subscription.updated' do
+      allow(event).to receive(:type).and_return('customer.subscription.updated')
+      allow(subscription).to receive(:customer).and_return('cus_123')
+      stripe_event_service.new.perform(event: event)
+      expect(account.reload.custom_attributes).to eq({
+                                                       'stripe_customer_id' => 'cus_123',
+                                                       'stripe_price_id' => 'test',
+                                                       'stripe_product_id' => 'plan_id',
+                                                       'plan_name' => 'Hacker',
+                                                       'subscribed_quantity' => '10'
+                                                     })
+    end
+
+    it 'handles customer.subscription.deleted' do
+      stripe_customer_service = double
+      allow(event).to receive(:type).and_return('customer.subscription.deleted')
+      allow(Enterprise::Billing::CreateStripeCustomerService).to receive(:new).and_return(stripe_customer_service)
+      allow(stripe_customer_service).to receive(:perform)
+      stripe_event_service.new.perform(event: event)
+      expect(Enterprise::Billing::CreateStripeCustomerService).to have_received(:new).with(account: account)
+    end
+  end
+end