Move existing BOLT11 fuzz test to the `fuzz` crate

[rust-lightning] / fuzz / src / bolt11_deser.rs

diff --git a/fuzz/src/bolt11_deser.rs b/fuzz/src/bolt11_deser.rs
new file mode 100644 (file)
index 0000000..105235a
--- /dev/null
+++ b/fuzz/src/bolt11_deser.rs
@@ -0,0 +1,39 @@
+// This file is Copyright its original authors, visible in version control
+// history.
+//
+// This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
+// or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
+// You may not use this file except in accordance with one or both of these
+// licenses.
+
+use bitcoin::bech32::{u5, FromBase32, ToBase32};
+use crate::utils::test_logger;
+use lightning_invoice::RawDataPart;
+
+#[inline]
+pub fn do_test<Out: test_logger::Output>(data: &[u8], _out: Out) {
+       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
+       );
+}
+
+pub fn bolt11_deser_test<Out: test_logger::Output>(data: &[u8], out: Out) {
+       do_test(data, out);
+}
+
+#[no_mangle]
+pub extern "C" fn bolt11_deser_run(data: *const u8, datalen: usize) {
+       do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, test_logger::DevNull {});
+}