0g-chain/tests/e2e/testutil/chain.go

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package testutil
import (
"context"
"fmt"
"math/big"
"testing"
"github.com/stretchr/testify/require"
"github.com/cosmos/cosmos-sdk/client/grpc/tmservice"
"github.com/cosmos/cosmos-sdk/crypto/hd"
sdk "github.com/cosmos/cosmos-sdk/types"
txtypes "github.com/cosmos/cosmos-sdk/types/tx"
authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
upgradetypes "github.com/cosmos/cosmos-sdk/x/upgrade/types"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/ethclient"
evmtypes "github.com/evmos/ethermint/x/evm/types"
"github.com/kava-labs/kava/app"
kavaparams "github.com/kava-labs/kava/app/params"
"github.com/kava-labs/kava/tests/e2e/runner"
"github.com/kava-labs/kava/tests/util"
cdptypes "github.com/kava-labs/kava/x/cdp/types"
committeetypes "github.com/kava-labs/kava/x/committee/types"
communitytypes "github.com/kava-labs/kava/x/community/types"
earntypes "github.com/kava-labs/kava/x/earn/types"
evmutiltypes "github.com/kava-labs/kava/x/evmutil/types"
)
// Chain wraps query clients & accounts for a network
type Chain struct {
accounts map[string]*SigningAccount
t *testing.T
StakingDenom string
ChainId string
EvmClient *ethclient.Client
ContractAddrs map[string]common.Address
erc20s map[common.Address]struct{}
EncodingConfig kavaparams.EncodingConfig
Auth authtypes.QueryClient
Bank banktypes.QueryClient
Cdp cdptypes.QueryClient
Committee committeetypes.QueryClient
Community communitytypes.QueryClient
Earn earntypes.QueryClient
Evm evmtypes.QueryClient
Evmutil evmutiltypes.QueryClient
Tm tmservice.ServiceClient
Tx txtypes.ServiceClient
Upgrade upgradetypes.QueryClient
}
// NewChain creates the query clients & signing account management for a chain run on a set of ports.
// A signing client for the fundedAccountMnemonic is initialized. This account is referred to in the
// code as "whale" and it is used to supply funds to all new accounts.
func NewChain(t *testing.T, details *runner.ChainDetails, fundedAccountMnemonic string) (*Chain, error) {
chain := &Chain{
t: t,
StakingDenom: details.StakingDenom,
ChainId: details.ChainId,
ContractAddrs: make(map[string]common.Address),
erc20s: make(map[common.Address]struct{}),
}
chain.EncodingConfig = app.MakeEncodingConfig()
grpcConn, err := details.GrpcConn()
if err != nil {
return chain, err
}
chain.EvmClient, err = details.EvmClient()
if err != nil {
return chain, err
}
chain.Auth = authtypes.NewQueryClient(grpcConn)
chain.Bank = banktypes.NewQueryClient(grpcConn)
chain.Cdp = cdptypes.NewQueryClient(grpcConn)
chain.Committee = committeetypes.NewQueryClient(grpcConn)
chain.Community = communitytypes.NewQueryClient(grpcConn)
chain.Earn = earntypes.NewQueryClient(grpcConn)
chain.Evm = evmtypes.NewQueryClient(grpcConn)
chain.Evmutil = evmutiltypes.NewQueryClient(grpcConn)
chain.Tm = tmservice.NewServiceClient(grpcConn)
chain.Tx = txtypes.NewServiceClient(grpcConn)
chain.Upgrade = upgradetypes.NewQueryClient(grpcConn)
// initialize accounts map
chain.accounts = make(map[string]*SigningAccount)
// setup the signing account for the initially funded account (used to fund all other accounts)
whale := chain.AddNewSigningAccount(
FundedAccountName,
hd.CreateHDPath(Bip44CoinType, 0, 0),
chain.ChainId,
fundedAccountMnemonic,
)
// check that funded account is actually funded.
fmt.Printf("[%s] account used for funding (%s) address: %s\n", chain.ChainId, FundedAccountName, whale.SdkAddress)
whaleFunds := chain.QuerySdkForBalances(whale.SdkAddress)
if whaleFunds.IsZero() {
chain.t.Fatal("funded account mnemonic is for account with no funds")
}
return chain, nil
}
// Shutdown performs closes all the account request channels for this chain.
func (chain *Chain) Shutdown() {
// close all account request channels
for _, a := range chain.accounts {
close(a.sdkReqChan)
}
}
// ReturnAllFunds loops through all SigningAccounts and sends all their funds back to the
// initially funded account.
func (chain *Chain) ReturnAllFunds() {
whale := chain.GetAccount(FundedAccountName)
fmt.Println(chain.erc20s)
for _, a := range chain.accounts {
if a.SdkAddress.String() != whale.SdkAddress.String() {
// NOTE: assumes all cosmos coin conversion funds have been converted back to sdk.
// return all erc20 balance
for erc20Addr := range chain.erc20s {
erc20Bal := chain.GetErc20Balance(erc20Addr, a.EvmAddress)
// if account has no balance, do nothing
if erc20Bal.Cmp(big.NewInt(0)) == 0 {
continue
}
_, err := a.TransferErc20(erc20Addr, whale.EvmAddress, erc20Bal)
if err != nil {
a.l.Printf("FAILED TO RETURN ERC20 FUNDS (contract: %s, balance: %d): %s\n",
erc20Addr, erc20Bal, err,
)
}
}
// get sdk balance of account
balance := chain.QuerySdkForBalances(a.SdkAddress)
// assumes 200,000 gas w/ min fee of .001
gas := sdk.NewInt64Coin(chain.StakingDenom, 200)
// ensure they have enough gas to return funds
if balance.AmountOf(chain.StakingDenom).LT(gas.Amount) {
a.l.Printf("ACCOUNT LACKS GAS MONEY TO RETURN FUNDS: %s\n", balance)
continue
}
// send it all back (minus gas) to the whale!
res := a.BankSend(whale.SdkAddress, balance.Sub(gas))
if res.Err != nil {
a.l.Printf("failed to return funds: %s\n", res.Err)
}
}
}
}
// RegisterErc20 is a method to record the address of erc20s on this chain.
// The full balances of each registered erc20 will be returned to the funded
// account when ReturnAllFunds is called.
func (chain *Chain) RegisterErc20(address common.Address) {
chain.erc20s[address] = struct{}{}
}
// QuerySdkForBalances gets the balance of a particular address on this Chain.
func (chain *Chain) QuerySdkForBalances(addr sdk.AccAddress) sdk.Coins {
res, err := chain.Bank.AllBalances(context.Background(), &banktypes.QueryAllBalancesRequest{
Address: addr.String(),
})
require.NoError(chain.t, err)
return res.Balances
}
// GetModuleBalances returns the balance of a requested module account
func (chain *Chain) GetModuleBalances(moduleName string) sdk.Coins {
addr := authtypes.NewModuleAddress(moduleName)
return chain.QuerySdkForBalances(addr)
}
// GetErc20Balance fetches the ERC20 balance of `contract` for `address`.
func (chain *Chain) GetErc20Balance(contract, address common.Address) *big.Int {
resData, err := chain.EvmClient.CallContract(context.Background(), ethereum.CallMsg{
To: &contract,
Data: util.BuildErc20BalanceOfCallData(address),
}, nil)
require.NoError(chain.t, err)
return new(big.Int).SetBytes(resData)
}