Add test for duplicate keysend payment

[rust-lightning] / lightning / src / ln / features.rs

diff --git a/lightning/src/ln/features.rs b/lightning/src/ln/features.rs
index ca8150b09cfa580d69e55550cc6661b3068ea15c..d24d32ba0fa039dd9356621ec66839b2c59ffc28 100644 (file)
--- a/lightning/src/ln/features.rs
+++ b/lightning/src/ln/features.rs
@@ -451,6 +451,16 @@ impl<T: sealed::Context> PartialEq for Features<T> {
                self.flags.eq(&o.flags)
        }
 }
+impl<T: sealed::Context> PartialOrd for Features<T> {
+       fn partial_cmp(&self, other: &Self) -> Option<cmp::Ordering> {
+               self.flags.partial_cmp(&other.flags)
+       }
+}
+impl<T: sealed::Context + Eq> Ord for Features<T> {
+       fn cmp(&self, other: &Self) -> cmp::Ordering {
+               self.flags.cmp(&other.flags)
+       }
+}
 impl<T: sealed::Context> fmt::Debug for Features<T> {
        fn fmt(&self, fmt: &mut fmt::Formatter) -> Result<(), fmt::Error> {
                self.flags.fmt(fmt)
@@ -523,11 +533,17 @@ impl InvoiceFeatures {
        /// [`PaymentParameters::for_keysend`], thus omitting the need for payers to manually construct an
        /// `InvoiceFeatures` for [`find_route`].
        ///
+       /// MPP keysend is not widely supported yet, so we parameterize support to allow the user to
+       /// choose whether their router should find multi-part routes.
+       ///
        /// [`PaymentParameters::for_keysend`]: crate::routing::router::PaymentParameters::for_keysend
        /// [`find_route`]: crate::routing::router::find_route
-       pub(crate) fn for_keysend() -> InvoiceFeatures {
+       pub(crate) fn for_keysend(allow_mpp: bool) -> InvoiceFeatures {
                let mut res = InvoiceFeatures::empty();
                res.set_variable_length_onion_optional();
+               if allow_mpp {
+                       res.set_basic_mpp_optional();
+               }
                res
        }
 }