test: add can_spend and total_stake check

ledger/cryptarchia-ledger/src/lib.rs

@@ -386,7 +386,7 @@ impl core::fmt::Debug for LedgerState {
 
 #[cfg(test)]
 pub mod tests {
-    use super::{Coin, EpochState, LeaderProof, Ledger, LedgerState, Nullifier};
+    use super::{Coin, EpochState, LeaderProof, Ledger, LedgerState, Nullifier, Value};
     use crate::{crypto::Blake2b, Commitment, Config, LedgerError};
     use blake2::Digest;
     use cryptarchia_engine::Slot;
@@ -803,8 +803,12 @@ pub mod tests {
         let proof = LeaderProof::dummy(actual_slot, commitment, commitment);
         let epoch_state = ledger_state.epoch_state();
 
-        assert_eq!(ledger_state.can_lead(&commitment), true);
+        assert!(ledger_state.can_spend(&commitment));
-        assert_eq!(epoch_state.is_eligible_leader(&commitment), true);
+        assert_eq!(epoch_state.total_stake(), Value::from(1u32));
+        assert_eq!(coin.value(), Value::from(1u32));
+
+        assert!(ledger_state.can_lead(&commitment));
+        assert!(epoch_state.is_eligible_leader(&commitment));
 
         let apply_proof_err = ledger_state
             .try_apply_proof::<HeaderId>(&proof, ledger_config)