优化结构

internal/integration/payment/result_test.go

@@ -0,0 +1,18 @@
+package payment
+
+import (
+	"testing"
+
+	"kra/internal/biz"
+)
+
+func TestCallbackFieldsAcceptsCaseInsensitiveContentType(t *testing.T) {
+	callback := &biz.PaymentCallback{
+		Headers: map[string]string{"content-type": "Application/X-WWW-Form-Urlencoded"},
+		Body:    []byte("out_trade_no=ORDER-1&sign=signature"),
+	}
+	fields := callbackFields(callback)
+	if fields["out_trade_no"] != "ORDER-1" || fields["sign"] != "signature" {
+		t.Fatalf("callback fields = %#v", fields)
+	}
+}