Add tests for binary serialization via bincode

Cargo.toml

@@ -35,6 +35,7 @@ serde = { version = "1", optional = true }
 serde_derive = "<1.0.99"
 serde_json = "<1.0.45"
 serde_test = "1"
+bincode = "1.3.1"
 secp256k1 = { version = "0.19.0", features = [ "recovery", "rand-std" ] }
 # We need to pin ryu (transitive dep from serde_json) to stay compatible with Rust 1.22.0
 ryu = "<1.0.5"

src/lib.rs

@@ -48,6 +48,7 @@ pub extern crate bech32;
 #[cfg(all(test, feature = "serde"))] #[macro_use] extern crate serde_derive; // for 1.22.0 compat
 #[cfg(all(test, feature = "serde"))] extern crate serde_json;
 #[cfg(all(test, feature = "serde"))] extern crate serde_test;
+#[cfg(all(test, feature = "serde"))] extern crate bincode;
 #[cfg(all(test, feature = "unstable"))] extern crate test;
 
 #[cfg(target_pointer_width = "16")]

src/util/uint.rs

@@ -721,6 +721,10 @@ mod tests {
             let json = format!("\"{}\"", hex);
             assert_eq!(::serde_json::to_string(&uint).unwrap(), json);
             assert_eq!(::serde_json::from_str::<Uint256>(&json).unwrap(), uint);
+
+            let bin_encoded = ::bincode::serialize(&uint).unwrap();
+            let bin_decoded: Uint256 = ::bincode::deserialize(&bin_encoded).unwrap();
+            assert_eq!(bin_decoded, uint);
         };
 
         check(