f - builds_invoice_request_with_features

Author: jkczyz

lightning/src/offers/invoice_request.rs

@@ -740,6 +740,32 @@ mod tests {
 		}
 	}
 
+	#[test]
+	fn builds_invoice_request_with_features() {
+		let invoice_request = OfferBuilder::new("foo".into(), recipient_pubkey())
+			.amount_msats(1000)
+			.build().unwrap()
+			.request_invoice(vec![1; 32], payer_pubkey()).unwrap()
+			.features(InvoiceRequestFeatures::unknown())
+			.build().unwrap()
+			.sign(payer_sign).unwrap();
+		let (_, _, tlv_stream, _) = invoice_request.as_tlv_stream();
+		assert_eq!(invoice_request.features(), &InvoiceRequestFeatures::unknown());
+		assert_eq!(tlv_stream.features, Some(&InvoiceRequestFeatures::unknown()));
+
+		let invoice_request = OfferBuilder::new("foo".into(), recipient_pubkey())
+			.amount_msats(1000)
+			.build().unwrap()
+			.request_invoice(vec![1; 32], payer_pubkey()).unwrap()
+			.features(InvoiceRequestFeatures::unknown())
+			.features(InvoiceRequestFeatures::empty())
+			.build().unwrap()
+			.sign(payer_sign).unwrap();
+		let (_, _, tlv_stream, _) = invoice_request.as_tlv_stream();
+		assert_eq!(invoice_request.features(), &InvoiceRequestFeatures::empty());
+		assert_eq!(tlv_stream.features, None);
+	}
+
 	#[test]
 	fn builds_invoice_request_with_quantity() {
 		let ten = NonZeroU64::new(10).unwrap();