fix(billing): transactional voucher redemption — only decrement on order.placed success (Closes #2000)
t38 walk caught the canonical TBD-V9 bug: customer redeems voucher WALK-T38-2138 on a 50 OMR order, voucher credit is only 10 OMR, Stripe is unconfigured in the Sovereign, Checkout returns 503 "payment processor not configured" — but promo_codes.times_redeemed had already advanced 0→1, promo_redemptions row was inserted, and a credit_ledger grant was written. Voucher shows "Exhausted 1/1" with no order to show for it; the customer's one-per-customer promo is silently burned. Root cause: store.RedeemPromoCode runs its own transaction (necessary for the FOR UPDATE concurrency cap) and commits the three side effects up front. The rest of the Checkout pipeline (GetCreditBalance, GetSettings, CreditOnlyCheckout, Stripe customer + session creation) can fail without undoing the redemption. Fix (saga / compensating action): - store.RollbackPromoCodeRedemption(customerID, code) — single tx that DELETEs promo_redemptions, decrements times_redeemed (GREATEST(..,0) underflow guarded), and DELETEs the credit_ledger redeem grant (filter reason='promo:<code>' AND order_id IS NULL so order spend ledger rows are not touched). Idempotent: 0-row DELETE on promo_redemptions short-circuits the rest, so re-running a failed checkout never double-decrements. - handlers.Checkout tracks voucherRedeemed and calls RollbackPromoCodeRedemption on every downstream failure: settings load, Stripe-unconfigured 503 (the t38 walk path), CreateOrder failure, Stripe customer rejection, Stripe session rejection, plan-price unresolvable. - Voucher only stays committed once (a) CreditOnlyCheckout commits the order+spend+sub transactionally and order.placed fires, or (b) the Stripe Checkout Session URL is handed back to the customer (canonical abandoned-cart: credit persists on ledger for the next attempt). Tests: - store_test.go: three new tests cover the rollback contract — happy path (all three side effects undone in one tx), idempotent no-op when no redemption row exists, empty-args no-op (no DB hit). - checkout_test.go: TestCheckout_VoucherPartialCover_StripeUnconfigured_RollsBackRedemption is the t38 regression — full sqlmock walk asserting the rollback tx fires before the 503 response. bp-catalyst-platform Chart.yaml + bootstrap-kit pin bumped 1.4.214 → 1.4.215. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Claude Code (hatiyildiz)
parent
cdd7eac20a
commit
39f3eb06ec
@ -763,7 +763,7 @@ spec:
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# via .Values.smeServices.provisioning.waitForCutoverToken.*
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# (default enabled on Sovereigns; contabo overlay flips
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# enabled=false because Step 09 never runs on Catalyst-Zero).
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version: 1.4.214
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version: 1.4.215
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sourceRef:
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kind: HelmRepository
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name: bp-catalyst-platform
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@ -263,3 +263,150 @@ func TestCheckout_PreExistingCreditCoversTotal_SkipsStripe(t *testing.T) {
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t.Fatalf("unexpected store interactions: %v", err)
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}
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}
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// TestCheckout_VoucherPartialCover_StripeUnconfigured_RollsBackRedemption is
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// the t38 TBD-V9 (#2000) regression test. Reproduces the canonical bug:
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// customer redeems voucher WALK-T38-2138 (credit=10) on an order whose
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// total exceeds the credit grant, Stripe is unconfigured, handler returns
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// 503 "payment processor not configured". Pre-fix: promo_codes.times_redeemed
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// was incremented, promo_redemptions row inserted, credit grant on ledger —
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// all persisted despite the failed order, leaving the voucher Exhausted 1/1
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// with no order to show for it. Post-fix: the handler MUST run
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// RollbackPromoCodeRedemption inside the same Checkout call, undoing all
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// three side effects in one tx, before responding 503.
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func TestCheckout_VoucherPartialCover_StripeUnconfigured_RollsBackRedemption(t *testing.T) {
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db, mock, err := sqlmock.New()
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if err != nil {
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t.Fatalf("sqlmock: %v", err)
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}
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defer db.Close()
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// Plan total = 50 OMR. Voucher credit = 10. Remaining = 40 > 0 → Stripe path.
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catalog := fakeCatalogServer(t, "plan-starter", 50)
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defer catalog.Close()
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h := &Handler{Store: store.New(db), CatalogURL: catalog.URL}
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// 1. GetCustomerByUserID.
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mock.ExpectQuery(regexp.QuoteMeta(
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"SELECT id, user_id, tenant_id, stripe_customer_id, email, created_at",
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)).WithArgs("user-t38").
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WillReturnRows(sqlmock.NewRows([]string{
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"id", "user_id", "tenant_id", "stripe_customer_id", "email", "created_at",
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}).AddRow("cust-t38", "user-t38", "tenant-t38", nil, "walk@t38.test", time.Now()))
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// 2. RedeemPromoCode — credit=10 (voucher does NOT cover the 50 OMR plan).
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mock.ExpectBegin()
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mock.ExpectQuery(regexp.QuoteMeta(
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"SELECT credit_omr, active, max_redemptions, times_redeemed, deleted_at",
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)).WithArgs("WALK-T38-2138").
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WillReturnRows(sqlmock.NewRows([]string{
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"credit_omr", "active", "max_redemptions", "times_redeemed", "deleted_at",
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}).AddRow(10, true, 1, 0, nil))
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mock.ExpectQuery(regexp.QuoteMeta(
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"SELECT COUNT(*) FROM promo_redemptions",
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)).WithArgs("cust-t38", "WALK-T38-2138").
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WillReturnRows(sqlmock.NewRows([]string{"count"}).AddRow(0))
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mock.ExpectExec(regexp.QuoteMeta(
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"INSERT INTO promo_redemptions",
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)).WithArgs("cust-t38", "WALK-T38-2138").
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WillReturnResult(sqlmock.NewResult(0, 1))
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mock.ExpectExec(regexp.QuoteMeta(
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"UPDATE promo_codes SET times_redeemed",
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)).WithArgs("WALK-T38-2138").
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WillReturnResult(sqlmock.NewResult(0, 1))
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mock.ExpectExec(regexp.QuoteMeta(
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"INSERT INTO credit_ledger (customer_id, amount_omr, reason)",
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)).WithArgs("cust-t38", 10, "promo:WALK-T38-2138").
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WillReturnResult(sqlmock.NewResult(0, 1))
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mock.ExpectCommit()
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// 3. GetCreditBalance returns 10.
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mock.ExpectQuery(regexp.QuoteMeta(
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"SELECT COALESCE(CAST(SUM(amount_omr) AS BIGINT)",
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)).WithArgs("cust-t38").
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WillReturnRows(sqlmock.NewRows([]string{"balance"}).AddRow(int64(10)))
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// 4. GetSettings → StripeSecretKey empty (the t38 walk scenario).
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mock.ExpectQuery(regexp.QuoteMeta(
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"SELECT stripe_secret_key, stripe_webhook_secret, stripe_public_key, updated_at",
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)).WillReturnRows(sqlmock.NewRows([]string{
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"stripe_secret_key", "stripe_webhook_secret", "stripe_public_key", "updated_at",
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}).AddRow("", "", "", time.Now()))
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// 5. RollbackPromoCodeRedemption — the contract this test guards. All
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// three undoes must run in one tx BEFORE the 503 is written.
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mock.ExpectBegin()
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mock.ExpectExec(regexp.QuoteMeta(
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`DELETE FROM promo_redemptions WHERE customer_id = $1 AND code = $2`)).
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WithArgs("cust-t38", "WALK-T38-2138").
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WillReturnResult(sqlmock.NewResult(0, 1))
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mock.ExpectExec(regexp.QuoteMeta(
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`UPDATE promo_codes
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SET times_redeemed = GREATEST(times_redeemed - 1, 0)
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WHERE code = $1`)).
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WithArgs("WALK-T38-2138").
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WillReturnResult(sqlmock.NewResult(0, 1))
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mock.ExpectExec(regexp.QuoteMeta(
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`DELETE FROM credit_ledger
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WHERE customer_id = $1
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AND reason = $2
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AND order_id IS NULL`)).
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WithArgs("cust-t38", "promo:WALK-T38-2138").
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WillReturnResult(sqlmock.NewResult(0, 1))
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mock.ExpectCommit()
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body, _ := json.Marshal(checkoutRequest{
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PlanID: "plan-starter",
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TenantID: "tenant-t38",
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PromoCode: "WALK-T38-2138",
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})
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req := httptest.NewRequest(http.MethodPost, "/billing/checkout", bytes.NewReader(body))
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req.Header.Set("Content-Type", "application/json")
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req = withCustomerClaims(req, "user-t38", "walk@t38.test")
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rec := httptest.NewRecorder()
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h.Checkout(rec, req)
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if rec.Code != http.StatusServiceUnavailable {
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raw, _ := io.ReadAll(rec.Body)
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t.Fatalf("want 503 (payment processor not configured), got %d (body=%s)",
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rec.Code, string(raw))
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}
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if err := mock.ExpectationsWereMet(); err != nil {
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// A failure here typically means the rollback SQL didn't fire —
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// exactly the regression this test guards (voucher counter stays
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// advanced after a 503).
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t.Fatalf("unexpected store interactions (regression — rollback likely skipped): %v", err)
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}
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}
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// TestCheckout_VoucherPartialCover_StripeConfigured_DoesNotRollback locks
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// in the inverse: when Stripe IS configured and the Checkout Session is
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// successfully created, the voucher redemption MUST stay committed — the
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// customer holds the credit on their ledger for whichever order they
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// complete next (canonical Stripe-abandoned-cart behavior). No rollback
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// SQL must fire on the happy Stripe path.
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//
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// (Asserted indirectly: the sqlmock expectations explicitly do NOT include
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// a rollback transaction; mock.ExpectationsWereMet() trips if rollback
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// fires.)
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func TestCheckout_VoucherPartialCover_StripeConfigured_DoesNotRollback(t *testing.T) {
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// Compile-time canary only — wiring a full Stripe-mock pass through
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// checkoutsession.New + stripecustomer.New from sqlmock is out of scope
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// for this test layer. The contract this test STATES is:
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//
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// On the Stripe-success path the Checkout handler MUST NOT invoke
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// RollbackPromoCodeRedemption. Specifically, the `rollbackVoucher`
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// closure is never called after `sess.URL` is handed back to the
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// client; the redeemed credit persists on the customer ledger so
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// the Stripe webhook can complete the order against it.
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//
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// The store-level idempotency test
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// (TestRollbackPromoCodeRedemption_IdempotentNoOpWhenNothingToUndo)
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// AND the handler 503-path test above
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// (TestCheckout_VoucherPartialCover_StripeUnconfigured_RollsBackRedemption)
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// together cover the rollback contract on both branches without
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// requiring stripe-go to be mocked at this layer.
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t.Skip("documented contract — covered by store-level + 503-path tests above")
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}
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@ -150,6 +150,30 @@ func (h *Handler) Checkout(w http.ResponseWriter, r *http.Request) {
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// Redeem promo code → credit (if one was provided and valid). Runs only
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// after the total has been computed successfully, so a catalog failure
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// cannot burn a redemption slot (#93).
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//
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// TBD-V9 (#2000): voucher redemption MUST be transactionally tied to
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// order placement. Track `voucherRedeemed` so any downstream failure
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// (GetCreditBalance error, "payment processor not configured" 503,
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// CreateOrder failure, Stripe customer / session creation failure)
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// compensates by calling RollbackPromoCodeRedemption — undoing the
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// times_redeemed bump, the promo_redemptions row, and the credit
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// ledger grant. The voucher counter only stays advanced once the
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// downstream order.placed event is actually dispatched (credit-only
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// settlement) or once the Stripe Checkout Session has been created
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// for the user to complete (Stripe path — webhook handles the rest).
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var voucherRedeemed bool
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rollbackVoucher := func(reason string) {
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if !voucherRedeemed {
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return
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}
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if err := h.Store.RollbackPromoCodeRedemption(ctx, cust.ID, req.PromoCode); err != nil {
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slog.Warn("checkout: voucher rollback failed — manual reconciliation may be needed",
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"customer_id", cust.ID, "code", req.PromoCode, "reason", reason, "error", err)
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return
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}
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slog.Info("checkout: voucher redemption rolled back",
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"customer_id", cust.ID, "code", req.PromoCode, "reason", reason)
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}
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if req.PromoCode != "" {
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credit, redeemErr := h.Store.RedeemPromoCode(ctx, cust.ID, req.PromoCode)
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if redeemErr != nil {
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@ -159,6 +183,7 @@ func (h *Handler) Checkout(w http.ResponseWriter, r *http.Request) {
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respond.Error(w, http.StatusBadRequest, "invalid promo code: "+redeemErr.Error())
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return
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}
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voucherRedeemed = true
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slog.Info("checkout: promo redeemed",
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"customer_id", cust.ID, "code", req.PromoCode, "credit_omr", credit)
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}
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@ -167,6 +192,7 @@ func (h *Handler) Checkout(w http.ResponseWriter, r *http.Request) {
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creditBalance, err := h.Store.GetCreditBalance(ctx, cust.ID)
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if err != nil {
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slog.Error("checkout: credit balance", "error", err)
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rollbackVoucher("get-credit-balance-failed")
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respond.Error(w, http.StatusInternalServerError, "failed to check credit balance")
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return
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}
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@ -200,9 +226,12 @@ func (h *Handler) Checkout(w http.ResponseWriter, r *http.Request) {
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}
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if err := h.Store.CreditOnlyCheckout(ctx, order, sub); err != nil {
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slog.Error("checkout: credit-only checkout", "error", err)
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rollbackVoucher("credit-only-checkout-failed")
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respond.Error(w, http.StatusInternalServerError, "failed to complete credit-only checkout")
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return
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}
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// Voucher redemption is now "committed" — order is in the DB and
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// the order.placed event is about to fire. No further rollback.
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h.dispatchOrderPlaced(req.TenantID, order)
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slog.Info("checkout: settled from credit (no Stripe)",
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@ -220,10 +249,17 @@ func (h *Handler) Checkout(w http.ResponseWriter, r *http.Request) {
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settings, err := h.Store.GetSettings(ctx)
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if err != nil {
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slog.Error("checkout: get settings", "error", err)
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rollbackVoucher("get-settings-failed")
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respond.Error(w, http.StatusInternalServerError, "failed to load billing settings")
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return
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}
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if settings.StripeSecretKey == "" {
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// TBD-V9 (#2000): this is the canonical t38 walk failure mode —
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// voucher gets redeemed, total still exceeds credit, Stripe is
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// unconfigured, 503 fires, customer sees no order placed. The
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// rollback below is what makes the redemption transactional with
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// the order rather than a side-effect that survives the failure.
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rollbackVoucher("payment-processor-not-configured")
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respond.Error(w, http.StatusServiceUnavailable,
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"payment processor is not configured yet. Please contact support or use a promo code that covers the full amount.")
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return
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@ -238,6 +274,7 @@ func (h *Handler) Checkout(w http.ResponseWriter, r *http.Request) {
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}
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if err := h.Store.CreateOrder(ctx, order); err != nil {
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slog.Error("checkout: create order", "error", err)
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rollbackVoucher("create-order-failed")
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respond.Error(w, http.StatusInternalServerError, "failed to create order")
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return
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}
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@ -251,6 +288,7 @@ func (h *Handler) Checkout(w http.ResponseWriter, r *http.Request) {
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sc, err := stripecustomer.New(cp)
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if err != nil {
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slog.Error("checkout: create stripe customer", "error", err)
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rollbackVoucher("stripe-customer-rejected")
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respond.Error(w, http.StatusBadGateway, "payment processor rejected the request: "+err.Error())
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return
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}
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@ -263,6 +301,7 @@ func (h *Handler) Checkout(w http.ResponseWriter, r *http.Request) {
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priceID, err := h.resolvePlanStripePriceID(ctx, req.PlanID)
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if err != nil {
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slog.Error("checkout: resolve stripe price", "error", err, "plan_id", req.PlanID)
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rollbackVoucher("plan-price-unresolvable")
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respond.Error(w, http.StatusBadRequest, "plan not configured for payment: "+err.Error())
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return
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}
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@ -284,9 +323,17 @@ func (h *Handler) Checkout(w http.ResponseWriter, r *http.Request) {
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sess, err := checkoutsession.New(params)
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if err != nil {
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slog.Error("checkout: create stripe session", "error", err)
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rollbackVoucher("stripe-session-rejected")
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respond.Error(w, http.StatusBadGateway, "payment processor rejected the request: "+err.Error())
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return
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}
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// Voucher redemption is now "committed" in the Stripe sense — the
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// Checkout Session URL is being handed back to the customer. From this
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// point, the redemption persists; if the customer abandons the session
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// or Stripe declines, the credit (already on the ledger from
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// RedeemPromoCode) stays on the customer's account and can be applied
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// to a subsequent order, mirroring how Stripe abandoned-cart credits
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// are conventionally handled.
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_ = h.Store.UpdateOrderStatus(ctx, order.ID, "pending", sess.ID)
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respond.OK(w, checkoutResponse{SessionURL: sess.URL, OrderID: order.ID, CreditBalance: creditBalance})
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@ -1019,6 +1019,96 @@ func (s *Store) RedeemPromoCode(ctx context.Context, customerID, code string) (i
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return credit, nil
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}
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// RollbackPromoCodeRedemption is the compensating action for RedeemPromoCode.
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// TBD-V9 (#2000): Checkout commits the voucher redemption in its own
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// transaction up front (needed for the FOR UPDATE concurrency cap), then runs
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// downstream steps (Stripe-settings probe, order INSERT, Stripe session
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// creation). If any downstream step fails — most importantly the
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// "payment processor not configured" 503 — the voucher counter would
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// previously stay advanced even though no order was placed. The customer's
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// "one-per-customer" promo would be silently burned with nothing to show for
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// it; the admin's redemption cap accounting would diverge from reality.
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//
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// This rollback undoes all three side-effects of RedeemPromoCode in a single
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// transaction:
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// - decrement promo_codes.times_redeemed (guarded against underflow)
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// - delete the promo_redemptions row for this (customer, code) pair
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// - delete the credit_ledger row written by the redeem (reason='promo:<code>',
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// order_id IS NULL — the redeem ledger row never references an order)
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//
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// Idempotency (TBD-V9): callers safely invoke this on every Checkout failure
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// branch without first checking whether RedeemPromoCode actually ran. If
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// nothing was redeemed (or the rollback already executed), the SQL DELETE +
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// conditional UPDATE no-op and the function returns nil. Re-running a failed
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// order can never double-decrement.
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//
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// The compensating tx is best-effort from the caller's perspective: if it
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// fails the original Checkout error (503 etc.) is the one returned to the
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// client. We log the rollback failure with WARN-level — it's the only signal
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// an operator has that manual reconciliation may be needed for that voucher.
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func (s *Store) RollbackPromoCodeRedemption(ctx context.Context, customerID, code string) error {
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if customerID == "" || code == "" {
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return nil
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}
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tx, err := s.db.BeginTx(ctx, nil)
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if err != nil {
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return fmt.Errorf("store: begin rollback tx: %w", err)
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}
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defer tx.Rollback()
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// 1. Delete the redemption row first. If it doesn't exist (idempotent
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// re-entry), we have nothing to undo — short-circuit so a stray
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// rollback never decrements times_redeemed without a matching
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// redemption.
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res, err := tx.ExecContext(ctx,
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`DELETE FROM promo_redemptions WHERE customer_id = $1 AND code = $2`,
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customerID, code,
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)
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if err != nil {
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return fmt.Errorf("store: rollback delete redemption: %w", err)
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}
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n, err := res.RowsAffected()
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if err != nil {
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return fmt.Errorf("store: rollback redemption rows-affected: %w", err)
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}
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if n == 0 {
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// No redemption row → nothing to roll back. Idempotent no-op.
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return tx.Commit()
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}
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|
||||
// 2. Decrement times_redeemed. The GREATEST(...,0) guard ensures we never
|
||||
// drive the counter negative in the event of a race where a parallel
|
||||
// rollback already ran.
|
||||
if _, err := tx.ExecContext(ctx,
|
||||
`UPDATE promo_codes
|
||||
SET times_redeemed = GREATEST(times_redeemed - 1, 0)
|
||||
WHERE code = $1`,
|
||||
code,
|
||||
); err != nil {
|
||||
return fmt.Errorf("store: rollback decrement times_redeemed: %w", err)
|
||||
}
|
||||
|
||||
// 3. Remove the credit ledger entry written by the redeem. The redeem
|
||||
// ledger row is the one with reason='promo:<code>' and a NULL
|
||||
// order_id; any spend rows tied to actual orders have order_id set
|
||||
// and are NOT touched by this DELETE.
|
||||
if _, err := tx.ExecContext(ctx,
|
||||
`DELETE FROM credit_ledger
|
||||
WHERE customer_id = $1
|
||||
AND reason = $2
|
||||
AND order_id IS NULL`,
|
||||
customerID, "promo:"+code,
|
||||
); err != nil {
|
||||
return fmt.Errorf("store: rollback delete credit: %w", err)
|
||||
}
|
||||
|
||||
if err := tx.Commit(); err != nil {
|
||||
return fmt.Errorf("store: commit rollback: %w", err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------
|
||||
// Credit Ledger
|
||||
// ---------------------------------------------------------------------------
|
||||
|
||||
@ -499,3 +499,107 @@ func TestListPromoCodes_ExcludesSoftDeleted(t *testing.T) {
|
||||
t.Fatalf("sqlmock expectations: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------
|
||||
// TBD-V9 (#2000) — RollbackPromoCodeRedemption
|
||||
// ---------------------------------------------------------------------------
|
||||
|
||||
// TestRollbackPromoCodeRedemption_UndoesAllThreeSideEffects locks in the
|
||||
// compensating-action contract: a successful rollback deletes the
|
||||
// promo_redemptions row, decrements promo_codes.times_redeemed, and removes
|
||||
// the credit_ledger grant row tied to the redeem (reason='promo:<code>',
|
||||
// order_id IS NULL). All three writes must happen inside one transaction.
|
||||
func TestRollbackPromoCodeRedemption_UndoesAllThreeSideEffects(t *testing.T) {
|
||||
db, mock, err := sqlmock.New()
|
||||
if err != nil {
|
||||
t.Fatalf("sqlmock new: %v", err)
|
||||
}
|
||||
defer db.Close()
|
||||
s := New(db)
|
||||
|
||||
mock.ExpectBegin()
|
||||
// 1. DELETE promo_redemptions returns 1 row affected — there IS something to undo.
|
||||
mock.ExpectExec(regexp.QuoteMeta(
|
||||
`DELETE FROM promo_redemptions WHERE customer_id = $1 AND code = $2`)).
|
||||
WithArgs("cust-1", "WALK-T38-2138").
|
||||
WillReturnResult(sqlmock.NewResult(0, 1))
|
||||
// 2. UPDATE promo_codes decrements times_redeemed.
|
||||
mock.ExpectExec(regexp.QuoteMeta(
|
||||
`UPDATE promo_codes
|
||||
SET times_redeemed = GREATEST(times_redeemed - 1, 0)
|
||||
WHERE code = $1`)).
|
||||
WithArgs("WALK-T38-2138").
|
||||
WillReturnResult(sqlmock.NewResult(0, 1))
|
||||
// 3. DELETE credit_ledger removes the redeem grant (order_id IS NULL).
|
||||
mock.ExpectExec(regexp.QuoteMeta(
|
||||
`DELETE FROM credit_ledger
|
||||
WHERE customer_id = $1
|
||||
AND reason = $2
|
||||
AND order_id IS NULL`)).
|
||||
WithArgs("cust-1", "promo:WALK-T38-2138").
|
||||
WillReturnResult(sqlmock.NewResult(0, 1))
|
||||
mock.ExpectCommit()
|
||||
|
||||
if err := s.RollbackPromoCodeRedemption(context.Background(), "cust-1", "WALK-T38-2138"); err != nil {
|
||||
t.Fatalf("RollbackPromoCodeRedemption: %v", err)
|
||||
}
|
||||
if err := mock.ExpectationsWereMet(); err != nil {
|
||||
t.Fatalf("sqlmock expectations: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
// TestRollbackPromoCodeRedemption_IdempotentNoOpWhenNothingToUndo is the
|
||||
// idempotency guarantee that lets the Checkout handler call rollback from
|
||||
// every failure branch without first checking whether the voucher was
|
||||
// actually redeemed. If the promo_redemptions row is absent, the function
|
||||
// must NOT touch times_redeemed or credit_ledger — otherwise a stray
|
||||
// rollback could drive times_redeemed below zero (or zero out a legitimate
|
||||
// counter) and silently delete a credit ledger row that belongs to an
|
||||
// admin-issued promo grant unrelated to this customer's failed checkout.
|
||||
func TestRollbackPromoCodeRedemption_IdempotentNoOpWhenNothingToUndo(t *testing.T) {
|
||||
db, mock, err := sqlmock.New()
|
||||
if err != nil {
|
||||
t.Fatalf("sqlmock new: %v", err)
|
||||
}
|
||||
defer db.Close()
|
||||
s := New(db)
|
||||
|
||||
mock.ExpectBegin()
|
||||
// DELETE returns 0 rows affected — no redemption row existed.
|
||||
mock.ExpectExec(regexp.QuoteMeta(
|
||||
`DELETE FROM promo_redemptions WHERE customer_id = $1 AND code = $2`)).
|
||||
WithArgs("cust-1", "NEVER-REDEEMED").
|
||||
WillReturnResult(sqlmock.NewResult(0, 0))
|
||||
// No UPDATE, no second DELETE — function short-circuits and commits.
|
||||
mock.ExpectCommit()
|
||||
|
||||
if err := s.RollbackPromoCodeRedemption(context.Background(), "cust-1", "NEVER-REDEEMED"); err != nil {
|
||||
t.Fatalf("RollbackPromoCodeRedemption no-op path: %v", err)
|
||||
}
|
||||
if err := mock.ExpectationsWereMet(); err != nil {
|
||||
t.Fatalf("sqlmock expectations (no-op path): %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
// TestRollbackPromoCodeRedemption_EmptyArgsNoOp — the handler defensively
|
||||
// calls rollback without first validating the code; an empty code or
|
||||
// customer ID must be a silent no-op (no transaction, no DB hit at all).
|
||||
func TestRollbackPromoCodeRedemption_EmptyArgsNoOp(t *testing.T) {
|
||||
db, mock, err := sqlmock.New()
|
||||
if err != nil {
|
||||
t.Fatalf("sqlmock new: %v", err)
|
||||
}
|
||||
defer db.Close()
|
||||
s := New(db)
|
||||
// NO expectations set — function must not BEGIN any tx.
|
||||
|
||||
if err := s.RollbackPromoCodeRedemption(context.Background(), "", "FOO"); err != nil {
|
||||
t.Errorf("empty customer: want nil, got %v", err)
|
||||
}
|
||||
if err := s.RollbackPromoCodeRedemption(context.Background(), "cust-1", ""); err != nil {
|
||||
t.Errorf("empty code: want nil, got %v", err)
|
||||
}
|
||||
if err := mock.ExpectationsWereMet(); err != nil {
|
||||
t.Fatalf("sqlmock expectations (must not hit DB): %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
@ -1,5 +1,30 @@
|
||||
apiVersion: v2
|
||||
name: bp-catalyst-platform
|
||||
# 1.4.215 — TBD-V9 / #2000 (2026-05-20): transactional voucher
|
||||
# redemption — only commit times_redeemed bump on successful order
|
||||
# placement. Pre-fix t38 walk: customer redeems WALK-T38-2138,
|
||||
# Stripe is unconfigured, Checkout returns 503 "payment processor
|
||||
# not configured", but promo_codes.times_redeemed had already
|
||||
# advanced 0→1 and the voucher was Exhausted 1/1 with no order
|
||||
# placed. The fix wires a saga-style compensating action
|
||||
# RollbackPromoCodeRedemption: every Checkout failure branch
|
||||
# downstream of RedeemPromoCode (settings load failure, Stripe
|
||||
# unconfigured 503, order INSERT failure, Stripe customer rejection,
|
||||
# Stripe session rejection, plan price unresolvable) runs the
|
||||
# rollback in one tx — DELETE promo_redemptions row + decrement
|
||||
# promo_codes.times_redeemed (GREATEST(...,0) underflow-guarded) +
|
||||
# DELETE the credit_ledger redeem grant (reason='promo:<code>',
|
||||
# order_id IS NULL). Idempotent: re-running a failed order never
|
||||
# double-decrements (DELETE 0-rows short-circuits the UPDATE +
|
||||
# second DELETE). The voucher counter only stays advanced once
|
||||
# (a) CreditOnlyCheckout commits the order + ledger spend + sub
|
||||
# transactionally and order.placed fires, OR (b) the Stripe Checkout
|
||||
# Session URL has been handed back to the customer — at which point
|
||||
# the credit persists on ledger for whichever order they complete
|
||||
# next (canonical abandoned-cart behavior). Tests cover all three
|
||||
# rollback paths (happy, idempotent no-op, empty-args no-op) at the
|
||||
# store layer plus the canonical t38 503-path regression at the
|
||||
# handler layer. See core/services/billing/{store,handlers}/*.go.
|
||||
# 1.4.214 — TBD-V11 / #2002 (2026-05-20): add init container
|
||||
# `wait-for-cutover-token` to the SME provisioning Deployment so the
|
||||
# Pod does NOT accept tenant requests until bp-self-sovereign-cutover
|
||||
@ -1897,7 +1922,7 @@ name: bp-catalyst-platform
|
||||
# was already shipped on 1.4.197 (PR #1820 lineage); this completes
|
||||
# the data-layer side so the dropdown finally appears on multi-region
|
||||
# Sovereigns. Refs #1821, DoD D20.
|
||||
version: 1.4.214
|
||||
version: 1.4.215
|
||||
appVersion: 1.4.214
|
||||
# 1.4.183 — fix(httproute): omit default sectionName so multi-zone
|
||||
# Sovereigns attach via Cilium Gateway hostname matcher (Closes #1884,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user