f - check for unknown required features in request_invoice

Author: jkczyz

lightning/src/offers/merkle.rs

@@ -240,7 +240,7 @@ mod tests {
 		let invoice_request = OfferBuilder::new("A Mathematical Treatise".into(), recipient_pubkey)
 			.amount(Amount::Currency { iso4217_code: *b"USD", amount: 100 })
 			.build_unchecked()
-			.request_invoice(vec![0; 8], payer_keys.public_key())
+			.request_invoice(vec![0; 8], payer_keys.public_key()).unwrap()
 			.build_unchecked()
 			.sign::<_, Infallible>(|digest| Ok(secp_ctx.sign_schnorr_no_aux_rand(digest, &payer_keys)))
 			.unwrap();