test: support debug_getRaw* RPCs

vms/saevm/sae/BUILD.bazel

@@ -133,6 +133,7 @@ go_test(
         "@com_github_ava_labs_libevm//libevm/options",
         "@com_github_ava_labs_libevm//log",
         "@com_github_ava_labs_libevm//params",
+        "@com_github_ava_labs_libevm//rlp",
         "@com_github_ava_labs_libevm//rpc",
         "@com_github_ava_labs_libevm//trie",
         "@com_github_google_go_cmp//cmp",

vms/saevm/sae/rpc/mempool.go

@@ -27,6 +27,7 @@ func (b *backend) TxPoolContentFrom(addr common.Address) ([]*types.Transaction,
 	return b.Set.Pool.ContentFrom(addr)
 }
 
+// GetPoolTransactions returns only pending transactions from the mempool.
 func (b *backend) GetPoolTransactions() (types.Transactions, error) {
 	pending := b.Pool.Pending(txpool.PendingFilter{})
 

vms/saevm/sae/rpc/server.go

@@ -124,14 +124,12 @@ func (b *backend) server(filter *filters.FilterAPI) (*rpc.Server, error) {
 			// - debug_dbAncient
 			// - debug_dbAncients
 			// - debug_dbGet
-			// - debug_getRawTransaction
-			// - debug_printBlock
-			// - debug_setHead          (no-op, logs info)
-			//
-			// TODO: implement once BlockByNumberOrHash and GetReceipts exist:
 			// - debug_getRawBlock
 			// - debug_getRawHeader
 			// - debug_getRawReceipts
+			// - debug_getRawTransaction
+			// - debug_printBlock
+			// - debug_setHead          (no-op, logs info)
 			"debug", ethapi.NewDebugAPI(b),
 		})
 	}

vms/saevm/sae/rpc/transactions.go

@@ -19,6 +19,8 @@ func (b *backend) GetTransaction(ctx context.Context, txHash common.Hash) (exist
 	return true, tx, blockHash, blockNumber, index, nil
 }
 
+// GetPoolTransaction returns a transaction from the mempool regardless of its
+// status (pending or queued).
 func (b *backend) GetPoolTransaction(txHash common.Hash) *types.Transaction {
 	return b.Set.Pool.Get(txHash)
 }