Add first test

contracts/ccc-btc-lock/src/entry.rs

@@ -2,7 +2,7 @@ use crate::error::Error;
 use alloc::{string::String, vec::Vec};
 use ckb_lock_helper::{
     constant::{BTC_PREFIX, PREFIX, SUFFIX},
-    generate_sighash_all,
+    generate_sighash_all, println_hex,
 };
 use ckb_std::{
     ckb_constants::Source,
@@ -56,9 +56,12 @@ pub fn entry() -> Result<(), Error> {
         .map_err(|_| Error::CanNotRecover)?;
     // TODO: double check its format
     let recovered_key_bytes = recovered_key.to_sec1_bytes();
+    assert!(recovered_key_bytes.len() == 33);
     // RIPEMD160 over SHA-256 for pubkey hashing
     let pubkey_hash_result: [u8; 20] =
         Ripemd160::digest(&Sha256::digest(&recovered_key_bytes)).into();
+    println_hex("pubkey result", pubkey_hash_result.as_ref());
+    println_hex("pubkey expect", pubkey_hash.as_ref());
     if pubkey_hash_result.as_ref() != pubkey_hash.as_ref() {
         return Err(Error::PubkeyHashMismatched);
     }

crates/ckb-lock-helper/src/lib.rs

@@ -15,6 +15,16 @@ use ckb_std::debug;
 use ckb_std::high_level::{load_tx_hash, load_witness, load_witness_args};
 use ckb_std::syscalls::{load_input_by_field, SysError};
 
+pub fn println_hex(name: &str, data: &[u8]) {
+    debug!(
+        "{}(len={}): {}",
+        name,
+        data.len(),
+        hex::encode(data)
+    );
+}
+
+
 pub fn generate_sighash_all() -> Result<[u8; 32], Error> {
     let mut blake2b_ctx = new_blake2b_stat();
     let tx_hash = load_tx_hash()?;
@@ -60,6 +70,7 @@ pub fn generate_sighash_all() -> Result<[u8; 32], Error> {
     let mut msg = [0u8; 32];
     debug!("Hashed {} bytes in sighash_all", blake2b_ctx.count());
     blake2b_ctx.finalize(&mut msg);
+    println_hex("sighash_all_msg", &msg);
     Ok(msg)
 }