.github/workflows/lint.yml

@@ -25,7 +25,7 @@ jobs:
             go.sum
       - uses: golangci/golangci-lint-action@v3
         with:
-          version: latest
+          version: v1.48.0
           args: --timeout 10m
           github-token: ${{ secrets.github_token }}
         # Check only if there are differences in the source code

app/ante/doc.go

@@ -1,4 +1,5 @@
-/*Package ante defines the SDK auth module's AnteHandler as well as an internal
+/*
+Package ante defines the SDK auth module's AnteHandler as well as an internal
 AnteHandler for an Ethereum transaction (i.e MsgEthereumTx).
 
 During CheckTx, the transaction is passed through a series of

client/keys/add.go

@@ -38,12 +38,14 @@ const (
 	mnemonicEntropySize = 256
 )
 
-/* RunAddCmd
+/*
+RunAddCmd
 input
   - bip39 mnemonic
   - bip39 passphrase
   - bip44 path
   - local encryption password
+
 output
   - armor encrypted private key (saved to file)
 */

rpc/namespaces/ethereum/eth/api.go

@@ -294,6 +294,11 @@ func (e *PublicAPI) GetBalance(address common.Address, blockNrOrHash rpctypes.Bl
 		return nil, errors.New("invalid balance")
 	}
 
+	// balance can only be negative in case of pruned node
+	if val.IsNegative() {
+		return nil, errors.New("couldn't fetch balance. Node state is pruned")
+	}
+
 	return (*hexutil.Big)(val.BigInt()), nil
 }
 

tests/integration_tests/.isort.cfg

@@ -0,0 +1,9 @@
+[settings]
+# compatible with black
+# https://black.readthedocs.io/en/stable/the_black_code_style.html
+multi_line_output = 3
+include_trailing_comma = True
+force_grid_wrap = 0
+use_parentheses = True
+ensure_newline_before_comments = True
+line_length = 88

tests/integration_tests/configs/pruned_node.jsonnet

@@ -0,0 +1,12 @@
+local config = import 'default.jsonnet';
+
+config {
+  'ethermint_9000-1'+: {
+    'app-config'+: {
+      pruning: 'everything',
+      'state-sync'+: {
+        'snapshot-interval': 0,
+      },
+    },
+  },
+}

tests/integration_tests/test_pruned_node.py

@@ -0,0 +1,142 @@
+from pathlib import Path
+
+import pytest
+from eth_bloom import BloomFilter
+from eth_utils import abi, big_endian_to_int
+from hexbytes import HexBytes
+from web3.datastructures import AttributeDict
+
+from .network import setup_custom_ethermint
+from .utils import (
+    ADDRS,
+    CONTRACTS,
+    KEYS,
+    deploy_contract,
+    sign_transaction,
+    w3_wait_for_new_blocks,
+)
+
+
+@pytest.fixture(scope="module")
+def pruned(request, tmp_path_factory):
+    """start-cronos
+    params: enable_auto_deployment
+    """
+    yield from setup_custom_ethermint(
+        tmp_path_factory.mktemp("pruned"),
+        26900,
+        Path(__file__).parent / "configs/pruned_node.jsonnet",
+    )
+
+
+def test_pruned_node(pruned):
+    """
+    test basic json-rpc apis works in pruned node
+    """
+    w3 = pruned.w3
+    erc20 = deploy_contract(
+        w3,
+        CONTRACTS["TestERC20A"],
+        key=KEYS["validator"],
+    )
+    tx = erc20.functions.transfer(ADDRS["community"], 10).buildTransaction(
+        {"from": ADDRS["validator"]}
+    )
+    signed = sign_transaction(w3, tx, KEYS["validator"])
+    txhash = w3.eth.send_raw_transaction(signed.rawTransaction)
+    print("wait for prunning happens")
+    w3_wait_for_new_blocks(w3, 10)
+
+    tx_receipt = w3.eth.get_transaction_receipt(txhash.hex())
+    assert len(tx_receipt.logs) == 1
+    expect_log = {
+        "address": erc20.address,
+        "topics": [
+            HexBytes(
+                abi.event_signature_to_log_topic("Transfer(address,address,uint256)")
+            ),
+            HexBytes(b"\x00" * 12 + HexBytes(ADDRS["validator"])),
+            HexBytes(b"\x00" * 12 + HexBytes(ADDRS["community"])),
+        ],
+        "data": "0x000000000000000000000000000000000000000000000000000000000000000a",
+        "transactionIndex": 0,
+        "logIndex": 0,
+        "removed": False,
+    }
+    assert expect_log.items() <= tx_receipt.logs[0].items()
+
+    # check get_balance and eth_call don't work on pruned state
+    # we need to check error message here.
+    # `get_balance` returns unmarshallJson and thats not what it should
+    res = w3.eth.get_balance(ADDRS["validator"], "latest")
+    assert res > 0
+
+    pruned_res = pruned.w3.provider.make_request(
+        "eth_getBalance", [ADDRS["validator"], hex(tx_receipt.blockNumber)]
+    )
+    assert "error" in pruned_res
+    assert (
+        pruned_res["error"]["message"] == "couldn't fetch balance. Node state is pruned"
+    )
+
+    with pytest.raises(Exception):
+        erc20.caller(block_identifier=tx_receipt.blockNumber).balanceOf(
+            ADDRS["validator"]
+        )
+
+    # check block bloom
+    block = w3.eth.get_block(tx_receipt.blockNumber)
+
+    assert "baseFeePerGas" in block
+    assert block.miner == "0x0000000000000000000000000000000000000000"
+    bloom = BloomFilter(big_endian_to_int(block.logsBloom))
+    assert HexBytes(erc20.address) in bloom
+    for topic in expect_log["topics"]:
+        assert topic in bloom
+
+    tx1 = w3.eth.get_transaction(txhash)
+    tx2 = w3.eth.get_transaction_by_block(
+        tx_receipt.blockNumber, tx_receipt.transactionIndex
+    )
+    exp_tx = AttributeDict(
+        {
+            "from": "0x57f96e6B86CdeFdB3d412547816a82E3E0EbF9D2",
+            "gas": 51542,
+            "input": (
+                "0xa9059cbb000000000000000000000000378c50d9264c63f3f92b806d4ee56e"
+                "9d86ffb3ec000000000000000000000000000000000000000000000000000000"
+                "000000000a"
+            ),
+            "nonce": 2,
+            "to": erc20.address,
+            "transactionIndex": 0,
+            "value": 0,
+            "type": "0x2",
+            "accessList": [],
+            "chainId": "0x2328",
+        }
+    )
+    assert tx1 == tx2
+    for name in exp_tx.keys():
+        assert tx1[name] == tx2[name] == exp_tx[name]
+
+    logs = w3.eth.get_logs(
+        {
+            "fromBlock": tx_receipt.blockNumber,
+            "toBlock": tx_receipt.blockNumber,
+        }
+    )[0]
+    assert (
+        "address" in logs
+        and logs["address"] == "0x68542BD12B41F5D51D6282Ec7D91D7d0D78E4503"
+    )
+    assert "topics" in logs and len(logs["topics"]) == 3
+    assert logs["topics"][0] == HexBytes(
+        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
+    )
+    assert logs["topics"][1] == HexBytes(
+        "0x00000000000000000000000057f96e6b86cdefdb3d412547816a82e3e0ebf9d2"
+    )
+    assert logs["topics"][2] == HexBytes(
+        "0x000000000000000000000000378c50d9264c63f3f92b806d4ee56e9d86ffb3ec"
+    )

tests/integration_tests/utils.py

@@ -1,10 +1,44 @@
+import json
 import os
 import socket
 import time
+from pathlib import Path
 
+from dotenv import load_dotenv
 from eth_account import Account
 from web3._utils.transactions import fill_nonce, fill_transaction_defaults
 
+load_dotenv(Path(__file__).parent.parent.parent / "scripts/.env")
+Account.enable_unaudited_hdwallet_features()
+ACCOUNTS = {
+    "validator": Account.from_mnemonic(os.getenv("VALIDATOR1_MNEMONIC")),
+    "community": Account.from_mnemonic(os.getenv("COMMUNITY_MNEMONIC")),
+    "signer1": Account.from_mnemonic(os.getenv("SIGNER1_MNEMONIC")),
+    "signer2": Account.from_mnemonic(os.getenv("SIGNER2_MNEMONIC")),
+}
+KEYS = {name: account.key for name, account in ACCOUNTS.items()}
+ADDRS = {name: account.address for name, account in ACCOUNTS.items()}
+ETHERMINT_ADDRESS_PREFIX = "ethm"
+TEST_CONTRACTS = {
+    "TestERC20A": "TestERC20A.sol",
+}
+
+
+def contract_path(name, filename):
+    return (
+        Path(__file__).parent
+        / "contracts/artifacts/contracts/"
+        / filename
+        / (name + ".json")
+    )
+
+
+CONTRACTS = {
+    **{
+        name: contract_path(name, filename) for name, filename in TEST_CONTRACTS.items()
+    },
+}
+
 Account.enable_unaudited_hdwallet_features()
 
 ACCOUNTS = {
@@ -32,6 +66,29 @@ def wait_for_port(port, host="127.0.0.1", timeout=40.0):
                 ) from ex
 
 
+def w3_wait_for_new_blocks(w3, n):
+    begin_height = w3.eth.block_number
+    while True:
+        time.sleep(0.5)
+        cur_height = w3.eth.block_number
+        if cur_height - begin_height >= n:
+            break
+
+
+def deploy_contract(w3, jsonfile, args=(), key=KEYS["validator"]):
+    """
+    deploy contract and return the deployed contract instance
+    """
+    acct = Account.from_key(key)
+    info = json.loads(jsonfile.read_text())
+    contract = w3.eth.contract(abi=info["abi"], bytecode=info["bytecode"])
+    tx = contract.constructor(*args).buildTransaction({"from": acct.address})
+    txreceipt = send_transaction(w3, tx, key)
+    assert txreceipt.status == 1
+    address = txreceipt.contractAddress
+    return w3.eth.contract(address=address, abi=info["abi"])
+
+
 def fill_defaults(w3, tx):
     return fill_nonce(w3, fill_transaction_defaults(w3, tx))
 

x/evm/keeper/keeper.go

@@ -283,8 +283,13 @@ func (k *Keeper) GetNonce(ctx sdk.Context, addr common.Address) uint64 {
 // GetBalance load account's balance of gas token
 func (k *Keeper) GetBalance(ctx sdk.Context, addr common.Address) *big.Int {
 	cosmosAddr := sdk.AccAddress(addr.Bytes())
-	params := k.GetParams(ctx)
+	evmDenom := ""
-	coin := k.bankKeeper.GetBalance(ctx, cosmosAddr, params.EvmDenom)
+	k.paramSpace.GetIfExists(ctx, types.ParamStoreKeyEVMDenom, &evmDenom)
+	// if node is pruned, params is empty. Return invalid value
+	if evmDenom == "" {
+		return big.NewInt(-1)
+	}
+	coin := k.bankKeeper.GetBalance(ctx, cosmosAddr, evmDenom)
 	return coin.Amount.BigInt()
 }
 

x/evm/keeper/state_transition.go

@@ -178,7 +178,7 @@ func (k Keeper) GetHashFn(ctx sdk.Context) vm.GetHashFunc {
 // ApplyTransaction runs and attempts to perform a state transition with the given transaction (i.e Message), that will
 // only be persisted (committed) to the underlying KVStore if the transaction does not fail.
 //
-// Gas tracking
+// # Gas tracking
 //
 // Ethereum consumes gas according to the EVM opcodes instead of general reads and writes to store. Because of this, the
 // state transition needs to ignore the SDK gas consumption mechanism defined by the GasKVStore and instead consume the
@@ -309,18 +309,18 @@ func (k *Keeper) ApplyTransaction(ctx sdk.Context, tx *ethtypes.Transaction) (*t
 // If the message fails, the VM execution error with the reason will be returned to the client
 // and the transaction won't be committed to the store.
 //
-// Reverted state
+// # Reverted state
 //
 // The snapshot and rollback are supported by the `statedb.StateDB`.
 //
-// Different Callers
+// # Different Callers
 //
 // It's called in three scenarios:
 // 1. `ApplyTransaction`, in the transaction processing flow.
 // 2. `EthCall/EthEstimateGas` grpc query handler.
 // 3. Called by other native modules directly.
 //
-// Prechecks and Preprocessing
+// # Prechecks and Preprocessing
 //
 // All relevant state transition prechecks for the MsgEthereumTx are performed on the AnteHandler,
 // prior to running the transaction against the state. The prechecks run are the following:
@@ -336,11 +336,11 @@ func (k *Keeper) ApplyTransaction(ctx sdk.Context, tx *ethtypes.Transaction) (*t
 //
 // 1. set up the initial access list (iff fork > Berlin)
 //
-// Tracer parameter
+// # Tracer parameter
 //
 // It should be a `vm.Tracer` object or nil, if pass `nil`, it'll create a default one based on keeper options.
 //
-// Commit parameter
+// # Commit parameter
 //
 // If commit is true, the `StateDB` will be committed, otherwise discarded.
 func (k *Keeper) ApplyMessageWithConfig(ctx sdk.Context, msg core.Message, tracer vm.EVMLogger, commit bool, cfg *types.EVMConfig, txConfig statedb.TxConfig) (*types.MsgEthereumTxResponse, error) {

x/evm/types/tx_data.go

@@ -73,6 +73,7 @@ func NewTxDataFromTx(tx *ethtypes.Transaction) (TxData, error) {
 //
 //   - {0,1} + CHAIN_ID * 2 + 35, if EIP155 is used
 //   - {0,1} + 27, otherwise
+//
 // Ref: https://github.com/ethereum/EIPs/blob/master/EIPS/eip-155.md
 func DeriveChainID(v *big.Int) *big.Int {
 	if v == nil || v.Sign() < 1 {