Session 7i: Stripe test coverage gaps filled, dual-provider cutover documented (1042 tests)

tests/unit/stripeService.test.js

@@ -127,6 +127,31 @@ describe('stripeService', () => {
       expect(profilesUpdate.patch.subscription_status).toBe('grace_period');
     });
 
+    test('customer.subscription.updated active → flips tier to the new plan + clears grace', async () => {
+      // Plan-change flow (portal-driven upgrade/downgrade). Stripe sends
+      // the new price on items.data[0].price.id; the service must map it
+      // back to a tier via PRICE_MAP and reflect that on the user.
+      const fake = makeFake();
+      mockSupabaseClient.current = fake;
+      const newPriceId = process.env.STRIPE_PRICE_DESK || 'price_desk_monthly';
+      await handleWebhookEvent({
+        type: 'customer.subscription.updated',
+        data: {
+          object: {
+            customer: 'cus_active',
+            status: 'active',
+            items: { data: [{ price: { id: newPriceId } }] },
+          },
+        },
+      });
+      const usersUpdate = fake.updates.find((u) => u.table === 'users');
+      const profilesUpdate = fake.updates.find((u) => u.table === 'user_profiles');
+      expect(usersUpdate.patch.tier).toBe('desk');
+      expect(usersUpdate.patch.grace_period_until).toBeNull();
+      expect(profilesUpdate.patch.tier).toBe('desk');
+      expect(profilesUpdate.patch.subscription_status).toBe('active');
+    });
+
     test('customer.subscription.deleted sets grace, does not flip tier immediately', async () => {
       const fake = makeFake();
       mockSupabaseClient.current = fake;