feat(pay-v2): P8 Task2 PaidEvent.Kind + SubscriptionProvider + Stripe 订阅 Checkout/取消

internal/provider/stripe/stripe_test.go

@@ -6,6 +6,7 @@ import (
 	"crypto/sha256"
 	"encoding/hex"
 	"fmt"
+	"io"
 	"net/http"
 	"net/http/httptest"
 	"strings"
@@ -26,11 +27,19 @@ func fakeStripeAPI(t *testing.T) *httptest.Server {
 		w.Header().Set("Content-Type", "application/json")
 		switch {
 		case r.Method == http.MethodPost && strings.HasPrefix(r.URL.Path, "/v1/checkout/sessions"):
-			// 创建 session
-			fmt.Fprint(w, `{"id":"cs_test_123","object":"checkout.session","url":"https://checkout.stripe.com/c/pay/cs_test_123","amount_total":2999,"currency":"usd","payment_status":"unpaid"}`)
+			// 创建 session。一次性(mode=payment)与订阅(mode=subscription)共用此分支,
+			// 靠 form body 是否带 "subscription" 区分,回不同 id 供各自用例断言。
+			b, _ := io.ReadAll(r.Body)
+			if strings.Contains(string(b), "subscription") {
+				fmt.Fprint(w, `{"id":"cs_sub_123","object":"checkout.session","url":"https://checkout.stripe.com/c/pay/cs_sub_123","mode":"subscription","amount_total":2999,"currency":"usd","payment_status":"unpaid"}`)
+			} else {
+				fmt.Fprint(w, `{"id":"cs_test_123","object":"checkout.session","url":"https://checkout.stripe.com/c/pay/cs_test_123","amount_total":2999,"currency":"usd","payment_status":"unpaid"}`)
+			}
 		case r.Method == http.MethodGet && strings.Contains(r.URL.Path, "/v1/checkout/sessions/cs_test_123"):
 			// 查询 session — 已付
 			fmt.Fprint(w, `{"id":"cs_test_123","object":"checkout.session","amount_total":2999,"currency":"usd","payment_status":"paid"}`)
+		case r.Method == http.MethodDelete && strings.Contains(r.URL.Path, "/v1/subscriptions/sub_cancel_ok"):
+			fmt.Fprint(w, `{"id":"sub_cancel_ok","object":"subscription","status":"canceled"}`)
 		default:
 			http.Error(w, `{"error":{"message":"not found"}}`, http.StatusNotFound)
 		}
@@ -47,6 +56,41 @@ func newStripe(t *testing.T, ts *httptest.Server) *st.Provider {
 	return st.New(sc, whSecret)
 }
 
+func TestCreateSubscriptionCheckout(t *testing.T) {
+	ts := fakeStripeAPI(t)
+	defer ts.Close()
+	p := newStripe(t, ts)
+
+	sess, err := p.CreateSubscriptionCheckout(context.Background(), provider.CreateRequest{
+		OutTradeNo: "PAY-S1", Subject: "Pro Monthly", AmountMinor: 2999, Currency: "USD",
+		ReturnURL: "https://x/return", Metadata: map[string]string{"pay_sub_id": "SUB-1"},
+	})
+	if err != nil {
+		t.Fatalf("create sub checkout: %v", err)
+	}
+	if sess.RenderType != provider.RenderRedirect || sess.ProviderRef != "cs_sub_123" {
+		t.Fatalf("session = %+v", sess)
+	}
+}
+
+func TestCancelSubscription(t *testing.T) {
+	ts := fakeStripeAPI(t)
+	defer ts.Close()
+	p := newStripe(t, ts)
+	if err := p.CancelSubscription(context.Background(), "sub_cancel_ok"); err != nil {
+		t.Fatalf("cancel: %v", err)
+	}
+}
+
+func TestCapabilitiesRecurring(t *testing.T) {
+	ts := fakeStripeAPI(t)
+	defer ts.Close()
+	c := newStripe(t, ts).Capabilities()
+	if !c.SupportsRecurring || c.RecurringKind != provider.RecurringKindGatewayScheduled {
+		t.Fatalf("caps = %+v", c)
+	}
+}
+
 func TestCreateCheckoutRedirect(t *testing.T) {
 	ts := fakeStripeAPI(t)
 	defer ts.Close()