--- /dev/null
+extern crate lightning_invoice;
+extern crate bech32;
+
+use lightning_invoice::RawDataPart;
+use bech32::{FromBase32, ToBase32, u5};
+
+fn do_test(data: &[u8]) {
+ let bech32 = data.iter().map(|x| u5::try_from_u8(x % 32).unwrap()).collect::<Vec<_>>();
+ let invoice = match RawDataPart::from_base32(&bech32) {
+ Ok(invoice) => invoice,
+ Err(_) => return,
+ };
+
+ // Our encoding is not worse than the input
+ assert!(invoice.to_base32().len() <= bech32.len());
+
+ // Our serialization is loss-less
+ assert_eq!(
+ RawDataPart::from_base32(&invoice.to_base32()).expect("faild parsing out own encoding"),
+ invoice
+ );
+}
+
+#[cfg(feature = "afl")]
+#[macro_use] extern crate afl;
+#[cfg(feature = "afl")]
+fn main() {
+ fuzz!(|data| {
+ do_test(&data);
+ });
+}
+
+#[cfg(feature = "honggfuzz")]
+#[macro_use] extern crate honggfuzz;
+#[cfg(feature = "honggfuzz")]
+fn main() {
+ loop {
+ fuzz!(|data| {
+ do_test(data);
+ });
+ }
+}
+
+#[cfg(test)]
+mod tests {
+ fn extend_vec_from_hex(hex: &str, out: &mut Vec<u8>) {
+ let mut b = 0;
+ for (idx, c) in hex.as_bytes().iter().filter(|&&c| c != b'\n').enumerate() {
+ b <<= 4;
+ match *c {
+ b'A'...b'F' => b |= c - b'A' + 10,
+ b'a'...b'f' => b |= c - b'a' + 10,
+ b'0'...b'9' => b |= c - b'0',
+ _ => panic!("Bad hex"),
+ }
+ if (idx & 1) == 1 {
+ out.push(b);
+ b = 0;
+ }
+ }
+ }
+
+ #[test]
+ fn duplicate_crash() {
+ let mut a = Vec::new();
+ extend_vec_from_hex("000000", &mut a);
+ super::do_test(&a);
+ }
+}