increase max value

src/consensus/constants.py

@@ -34,8 +34,8 @@ constants: Dict[str, Any] = {
     "MEMPOOL_BLOCK_BUFFER": 10,
     # Coinbase rewards are not spendable for 200 blocks
     "COINBASE_FREEZE_PERIOD": 200,
-    # Max coin amount int(1 << 48)
-    "MAX_COIN_AMOUNT": 281474976710656,
+    # Max coin amount uint(1 << 64)
+    "MAX_COIN_AMOUNT": b'\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF',
     # Raw size per block target = 1,000,000 bytes
     # Rax TX (single in, single out) = 219 bytes (not compressed)
     # TX = 457 vBytes

src/full_node/blockchain.py

@@ -1022,7 +1022,7 @@ class Blockchain:
         # Check additions for max coin amount
         for coin in additions:
             additions_dic[coin.name()] = coin
-            if coin.amount >= self.constants["MAX_COIN_AMOUNT"]:
+            if coin.amount >= uint64.from_bytes(self.constants["MAX_COIN_AMOUNT"]):
                 return Err.COIN_AMOUNT_EXCEEDS_MAXIMUM
 
         # Validate addition and removal roots

src/full_node/mempool_manager.py

@@ -141,7 +141,7 @@ class MempoolManager:
 
         # Check additions for max coin amount
         for coin in additions:
-            if coin.amount >= self.constants["MAX_COIN_AMOUNT"]:
+            if coin.amount >= uint64.from_bytes(self.constants["MAX_COIN_AMOUNT"]):
                 return (
                     None,
                     MempoolInclusionStatus.FAILED,

tests/full_node/test_full_node.py

@@ -6,6 +6,7 @@ import time
 from typing import Dict
 from secrets import token_bytes
 
+from src.consensus.constants import constants
 from src.protocols import full_node_protocol as fnp, timelord_protocol, wallet_protocol
 from src.server.outbound_message import NodeType
 from src.types.peer_info import PeerInfo
@@ -798,7 +799,7 @@ class TestWalletProtocol:
             100, wallet_a.get_new_puzzlehash(), blocks_new[-1].header.data.coinbase,
         )
         spend_bundle_bad = wallet_a.generate_signed_transaction(
-            1000000000000000,
+            uint64.from_bytes(constants["MAX_COIN_AMOUNT"]),
             wallet_a.get_new_puzzlehash(),
             blocks_new[-1].header.data.coinbase,
         )