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test_erc20_multiple_withdraws.go
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test_erc20_multiple_withdraws.go
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package e2etests
import (
"math/big"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/stretchr/testify/require"
"github.com/zeta-chain/zetacore/e2e/runner"
"github.com/zeta-chain/zetacore/e2e/utils"
testcontract "github.com/zeta-chain/zetacore/testutil/contracts"
)
func TestMultipleERC20Withdraws(r *runner.E2ERunner, args []string) {
require.Len(r, args, 2)
approvedAmount := big.NewInt(1e18)
withdrawalAmount, ok := big.NewInt(0).SetString(args[0], 10)
require.True(r, ok)
require.Equal(
r,
-1,
withdrawalAmount.Cmp(approvedAmount),
"Invalid withdrawal amount specified for TestMultipleWithdraws.",
)
numberOfWithdrawals, ok := big.NewInt(0).SetString(args[1], 10)
require.True(r, ok)
require.NotEmpty(r, numberOfWithdrawals.Int64())
// calculate total withdrawal to ensure it doesn't exceed approved amount.
totalWithdrawal := big.NewInt(0).Mul(withdrawalAmount, numberOfWithdrawals)
require.Equal(r, -1, totalWithdrawal.Cmp(approvedAmount), "Total withdrawal amount exceeds approved limit.")
// deploy withdrawer
withdrawerAddr, _, withdrawer, err := testcontract.DeployWithdrawer(r.ZEVMAuth, r.ZEVMClient)
require.NoError(r, err)
// approve
tx, err := r.ERC20ZRC20.Approve(r.ZEVMAuth, withdrawerAddr, approvedAmount)
require.NoError(r, err)
receipt := utils.MustWaitForTxReceipt(r.Ctx, r.ZEVMClient, tx, r.Logger, r.ReceiptTimeout)
utils.RequireTxSuccessful(r, receipt)
r.Logger.Info("ERC20 ZRC20 approve receipt: status %d", receipt.Status)
// approve gas token
tx, err = r.ETHZRC20.Approve(r.ZEVMAuth, withdrawerAddr, approvedAmount)
require.NoError(r, err)
receipt = utils.MustWaitForTxReceipt(r.Ctx, r.ZEVMClient, tx, r.Logger, r.ReceiptTimeout)
utils.RequireTxSuccessful(r, receipt)
r.Logger.Info("eth zrc20 approve receipt: status %d", receipt.Status)
// check the balance
bal, err := r.ERC20ZRC20.BalanceOf(&bind.CallOpts{}, r.EVMAddress())
require.NoError(r, err)
r.Logger.Info("balance of deployer on ERC20 ZRC20: %d", bal)
require.Less(r, totalWithdrawal.Int64(), bal.Int64(), "not enough ERC20 ZRC20 balance!")
// withdraw
tx, err = withdrawer.RunWithdraws(
r.ZEVMAuth,
r.EVMAddress().Bytes(),
r.ERC20ZRC20Addr,
withdrawalAmount,
numberOfWithdrawals,
)
require.NoError(r, err)
receipt = utils.MustWaitForTxReceipt(r.Ctx, r.ZEVMClient, tx, r.Logger, r.ReceiptTimeout)
utils.RequireTxSuccessful(r, receipt)
cctxs := utils.WaitCctxsMinedByInboundHash(
r.Ctx,
tx.Hash().Hex(),
r.CctxClient,
int(numberOfWithdrawals.Int64()),
r.Logger,
r.CctxTimeout,
)
require.Len(r, cctxs, 3)
// verify the withdraw value
for _, cctx := range cctxs {
verifyTransferAmountFromCCTX(r, cctx, withdrawalAmount.Int64())
}
}