Add invoice serialization tests [TestOnly][Minor]

lightning-invoice/src/lib.rs

@@ -64,6 +64,9 @@ mod de;
 mod ser;
 mod tb;
 
+#[cfg(test)]
+mod test_ser_de;
+
 #[allow(unused_imports)]
 mod prelude {
 	pub use alloc::{vec, vec::Vec, string::String};

lightning-invoice/src/test_ser_de.rs

@@ -0,0 +1,183 @@
+use crate::{
+	sha256, FromBase32, PayeePubKey, PaymentSecret, PositiveTimestamp, RawDataPart, Sha256,
+};
+use bech32::{Base32Len, ToBase32};
+
+use core::fmt::Debug;
+use std::str::FromStr;
+
+/// Test base32 encode and decode
+fn ser_de_test<T>(o: T, expected_str: &str)
+where
+	T: ToBase32 + FromBase32 + Eq + Debug,
+	T::Err: Debug,
+{
+	let serialized_32 = o.to_base32();
+	let serialized_str = serialized_32.iter().map(|f| f.to_char()).collect::<String>();
+	assert_eq!(serialized_str, expected_str);
+
+	// deserialize back
+	let o2 = T::from_base32(&serialized_32).unwrap();
+	assert_eq!(o, o2);
+}
+
+/// Test base32 encode and decode, and also length hint
+fn ser_de_test_len<T>(o: T, expected_str: &str)
+where
+	T: ToBase32 + FromBase32 + Base32Len + Eq + Debug,
+	T::Err: Debug,
+{
+	assert_eq!(o.base32_len(), expected_str.len());
+
+	ser_de_test(o, expected_str)
+}
+
+#[test]
+fn vec_u8() {
+	ser_de_test_len(vec![0], "qq");
+	ser_de_test_len(vec![255], "lu");
+	ser_de_test_len(vec![0, 1], "qqqs");
+	ser_de_test_len(vec![0, 1, 2], "qqqsy");
+	ser_de_test_len(vec![0, 1, 2, 3], "qqqsyqc");
+	ser_de_test_len(vec![0, 1, 2, 3, 4], "qqqsyqcy");
+	ser_de_test_len(vec![0, 1, 2, 3, 4, 5], "qqqsyqcyq5");
+	ser_de_test_len(vec![0, 1, 2, 3, 4, 5, 6], "qqqsyqcyq5rq");
+	ser_de_test_len(vec![0, 1, 2, 3, 4, 5, 6, 7], "qqqsyqcyq5rqw");
+	ser_de_test_len(vec![0, 1, 2, 3, 4, 5, 6, 7, 8], "qqqsyqcyq5rqwzq");
+	ser_de_test_len(vec![0, 1, 2, 3, 4, 5, 6, 7, 8, 9], "qqqsyqcyq5rqwzqf");
+	ser_de_test_len(vec![9, 8, 7, 6, 5, 4, 3, 2, 1, 0], "pyyqwps9qspsyqgq");
+	ser_de_test_len(vec![255, 254, 253, 252, 251, 250, 249, 248, 247, 246], "lll0ml8mltul3alk");
+}
+
+#[test]
+fn payment_secret() {
+	let payment_secret = PaymentSecret([7; 32]);
+	ser_de_test_len(payment_secret, "qurswpc8qurswpc8qurswpc8qurswpc8qurswpc8qurswpc8qurs");
+}
+
+#[test]
+fn positive_timestamp() {
+	use crate::PositiveTimestamp;
+
+	let timestamp = PositiveTimestamp::from_unix_timestamp(10000).unwrap();
+	ser_de_test(timestamp, "qqqqfcs");
+}
+
+#[test]
+fn bolt11_invoice_features() {
+	use crate::Bolt11InvoiceFeatures;
+
+	let features = Bolt11InvoiceFeatures::from_le_bytes(vec![1, 2, 3, 4, 5, 42, 100, 101]);
+	ser_de_test_len(features, "x2ep2q5zqxqsp");
+}
+
+#[test]
+fn raw_tagged_field() {
+	use crate::TaggedField::PaymentHash;
+
+	let field = PaymentHash(Sha256(
+		sha256::Hash::from_str("0001020304050607080900010203040506070809000102030405060708090102")
+			.unwrap(),
+	));
+	ser_de_test(field, "pp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypq");
+}
+
+#[test]
+fn sha256() {
+	let hash = Sha256(
+		sha256::Hash::from_str("0001020304050607080900010203040506070809000102030405060708090102")
+			.unwrap(),
+	);
+	ser_de_test_len(hash, "qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypq");
+}
+
+#[test]
+fn description() {
+	use crate::Description;
+
+	let description =
+		Description::new("This is a looooong        description".to_string()).unwrap();
+	ser_de_test_len(description, "235xjueqd9ejqcfqd3hk7mm0dahxwgpqyqszqgpqypjx2umrwf5hqarfdahq");
+}
+
+#[test]
+fn raw_data_part() {
+	use crate::TaggedField::PaymentHash;
+
+	let raw_data_part = RawDataPart {
+		timestamp: PositiveTimestamp::from_unix_timestamp(10000).unwrap(),
+		tagged_fields: vec![PaymentHash(Sha256(
+			sha256::Hash::from_str(
+				"0001020304050607080900010203040506070809000102030405060708090102",
+			)
+			.unwrap(),
+		))
+		.into()],
+	};
+	ser_de_test(raw_data_part, "qqqqfcspp5qqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqqqsyqcyq5rqwzqfqypq");
+}
+
+#[test]
+fn payeepubkey() {
+	use bitcoin::key::Secp256k1;
+	use bitcoin::secp256k1::{PublicKey, SecretKey};
+
+	let secp = Secp256k1::new();
+	let dummy_secret_key = SecretKey::from_slice(&[1; 32]).unwrap();
+	let payee_pub_key = PayeePubKey(PublicKey::from_secret_key(&secp, &dummy_secret_key));
+	ser_de_test_len(payee_pub_key, "qvdcf32k0vfxgsyet5ldt246q4jaw8scx3sysx0lnstlt6w4m5rc7");
+}
+
+#[test]
+fn expiry_time() {
+	use crate::ExpiryTime;
+
+	let expiry = ExpiryTime::from_seconds(10000);
+	ser_de_test_len(expiry, "fcs");
+}
+
+#[test]
+fn min_final_cltv_expiry_delta() {
+	use crate::MinFinalCltvExpiryDelta;
+
+	let cltv_delta = MinFinalCltvExpiryDelta(124);
+	ser_de_test_len(cltv_delta, "ru");
+}
+
+#[test]
+fn fallback() {
+	use crate::{Fallback, PubkeyHash, ScriptHash, WitnessVersion};
+	use bitcoin::hashes::Hash;
+
+	{
+		let fallback = Fallback::PubKeyHash(PubkeyHash::from_slice(&[3; 20]).unwrap());
+		ser_de_test_len(fallback, "3qvpsxqcrqvpsxqcrqvpsxqcrqvpsxqcr");
+	}
+	{
+		let fallback = Fallback::ScriptHash(ScriptHash::from_slice(&[3; 20]).unwrap());
+		ser_de_test_len(fallback, "jqvpsxqcrqvpsxqcrqvpsxqcrqvpsxqcr");
+	}
+	{
+		let fallback =
+			Fallback::SegWitProgram { version: WitnessVersion::V0, program: vec![3; 20] };
+		ser_de_test_len(fallback, "qqvpsxqcrqvpsxqcrqvpsxqcrqvpsxqcr");
+	}
+}
+
+#[test]
+fn private_route() {
+	use crate::{PrivateRoute, PublicKey, RouteHint, RouteHintHop, RoutingFees};
+
+	let private_route = PrivateRoute(RouteHint(vec![RouteHintHop {
+		src_node_id: PublicKey::from_slice(&vec![2; 33]).unwrap(),
+		short_channel_id: 0x0102030405060708,
+		fees: RoutingFees { base_msat: 1, proportional_millionths: 20 },
+		cltv_expiry_delta: 3,
+		htlc_minimum_msat: None,
+		htlc_maximum_msat: None,
+	}]));
+	ser_de_test_len(
+		private_route,
+		"qgpqyqszqgpqyqszqgpqyqszqgpqyqszqgpqyqszqgpqyqszqgpqyqgzqvzq2ps8pqqqqqqpqqqqq9qqqv",
+	);
+}