Impl custom Debug for TransactionHash
Resolves
//! Transaction types.
-use std::io;
+use std::{fmt, io};
+
+use hex;
use crate::serialization::{SerializationError, ZcashDeserialize, ZcashSerialize};
use crate::sha256d_writer::Sha256dWriter;
@@ -9,9 +11,17 @@ use crate::sha256d_writer::Sha256dWriter;
///
/// TODO: I'm pretty sure this is also a SHA256d hash but I haven't
/// confirmed it yet.
-#[derive(Copy, Clone, Debug, Eq, PartialEq)]
+#[derive(Copy, Clone, Eq, PartialEq)]
pub struct TransactionHash(pub [u8; 32]);
+impl fmt::Debug for TransactionHash {
+ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+ f.debug_tuple("TransactionHash")
+ .field(&hex::encode(&self.0))
+ .finish()
+ }
+}
+
impl From<Transaction> for TransactionHash {
fn from(transaction: Transaction) -> Self {
let mut hash_writer = Sha256dWriter::default();
@@ -122,3 +132,27 @@ impl ZcashDeserialize for Transaction {
unimplemented!();
}
}
+
+#[cfg(test)]
+mod tests {
+
+ use std::io::Write;
+
+ use super::TransactionHash;
+
+ use crate::sha256d_writer::Sha256dWriter;
+
+ #[test]
+ fn transactionhash_debug() {
+ let preimage = b"foo bar baz";
+ let mut sha_writer = Sha256dWriter::default();
+ let _ = sha_writer.write_all(preimage);
+
+ let hash = TransactionHash(sha_writer.finish());
+
+ assert_eq!(
+ format!("{:?}", hash),
+ "TransactionHash(\"bf46b4b5030752fedac6f884976162bbfb29a9398f104a280b3e34d51b416631\")"
+ );
+ }
+}
