test: fix local key formatting in signing test

util/signing/testing/Cargo.toml

@@ -19,7 +19,7 @@ async-trait = { workspace = true }
 maptos-dof-execution = { workspace = true }
 maptos-execution-util = { workspace = true }
 movement-signing-aptos = { workspace = true }
-movement-signer-loader = { workspace = true }   
+movement-signer-loader = { workspace = true }
 movement-signer-local = { workspace = true }
 movement-signer-aws-kms = { workspace = true }
 movement-signing-eth = { workspace = true }
@@ -28,6 +28,7 @@ aptos-types = { workspace = true }
 anyhow = { workspace = true }
 chrono = { workspace = true }
 ed25519-dalek = { workspace = true, features = ["rand_core"] }
+hex = { workspace = true }
 # Workspace is on rand 0.7 due largely to aptos-core
 rand = "0.8"
 sha3 = "0.10.8"

util/signing/testing/tests/execute.rs

@@ -12,7 +12,6 @@ use aptos_types::transaction::{
 };
 
 use anyhow::Context;
-use aptos_crypto::ValidCryptoMaterialStringExt;
 use movement_signer_loader::identifiers::{local::Local, SignerIdentifier};
 use tempfile::TempDir;
 
@@ -45,9 +44,9 @@ async fn execute_signed_transaction() -> Result<(), anyhow::Error> {
 	let private_key = Ed25519PrivateKey::generate_for_testing();
 	let mut config = Config::default();
 	let signing_key = ed25519_dalek::SigningKey::from_bytes(&private_key.to_bytes());
-	config.chain.maptos_private_key_signer_identifier = SignerIdentifier::Local(Local {
-		private_key_hex_bytes: private_key.to_encoded_string()?.to_string(),
-	});
+	let private_key_hex_bytes = hex::encode(&private_key.to_bytes());
+	config.chain.maptos_private_key_signer_identifier =
+		SignerIdentifier::Local(Local { private_key_hex_bytes });
 	let signer = TestSigner::new(signing_key);
 	let (executor, _tempdir) = setup(config)?;
 	let transaction = create_signed_transaction(&signer).await?;