0g-chain/x/evmutil/keeper/conversion_cosmos_native_test.go

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package keeper_test
import (
"fmt"
"math/big"
"testing"
"github.com/stretchr/testify/suite"
sdkmath "cosmossdk.io/math"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/kava-labs/kava/app"
"github.com/kava-labs/kava/x/evmutil/testutil"
"github.com/kava-labs/kava/x/evmutil/types"
)
type ConversionCosmosNativeSuite struct {
testutil.Suite
}
func TestConversionCosmosNativeSuite(t *testing.T) {
suite.Run(t, new(ConversionCosmosNativeSuite))
}
// fail test if contract for denom not registered
func (suite *ConversionCosmosNativeSuite) denomContractRegistered(denom string) types.InternalEVMAddress {
contractAddress, found := suite.Keeper.GetDeployedCosmosCoinContract(suite.Ctx, denom)
suite.True(found)
return contractAddress
}
// fail test if contract for denom IS registered
func (suite *ConversionCosmosNativeSuite) denomContractNotRegistered(denom string) {
_, found := suite.Keeper.GetDeployedCosmosCoinContract(suite.Ctx, denom)
suite.False(found)
}
// more tests of tests of this method are made to the msg handler, see ./msg_server_test.go
func (suite *ConversionCosmosNativeSuite) TestConvertCosmosCoinToERC20() {
allowedDenom := "ibc/27394FB092D2ECCD56123C74F36E4C1F926001CEADA9CA97EA622B25F41E5EB2"
initialFunding := sdk.NewInt64Coin(allowedDenom, int64(1e10))
initiator := app.RandomAddress()
amount := sdk.NewInt64Coin(allowedDenom, 6e8)
receiver1 := types.BytesToInternalEVMAddress(app.RandomAddress().Bytes())
receiver2 := types.BytesToInternalEVMAddress(app.RandomAddress().Bytes())
var contractAddress types.InternalEVMAddress
caller, key := testutil.RandomEvmAccount()
query := func(method string, args ...interface{}) ([]interface{}, error) {
return suite.QueryContract(
types.ERC20KavaWrappedCosmosCoinContract.ABI,
caller,
key,
contractAddress,
method,
args...,
)
}
checkTotalSupply := func(expectedSupply sdkmath.Int) {
res, err := query("totalSupply")
suite.NoError(err)
suite.Len(res, 1)
suite.BigIntsEqual(expectedSupply.BigInt(), res[0].(*big.Int), "unexpected total supply")
}
checkBalanceOf := func(address types.InternalEVMAddress, expectedBalance sdkmath.Int) {
res, err := query("balanceOf", address.Address)
suite.NoError(err)
suite.Len(res, 1)
suite.BigIntsEqual(expectedBalance.BigInt(), res[0].(*big.Int), fmt.Sprintf("unexpected balanceOf for %s", address))
}
suite.SetupTest()
suite.Run("fails when denom not allowed", func() {
suite.denomContractNotRegistered(allowedDenom)
err := suite.Keeper.ConvertCosmosCoinToERC20(
suite.Ctx,
initiator,
receiver1,
sdk.NewCoin(allowedDenom, sdkmath.NewInt(6e8)),
)
suite.ErrorContains(err, "sdk.Coin not enabled to convert to ERC20 token")
suite.denomContractNotRegistered(allowedDenom)
})
suite.Run("allowed denoms have contract deploys on first conversion", func() {
// make the denom allowed for conversion
params := suite.Keeper.GetParams(suite.Ctx)
params.AllowedCosmosDenoms = types.NewAllowedCosmosCoinERC20Tokens(
types.NewAllowedCosmosCoinERC20Token(allowedDenom, "Kava EVM Atom", "ATOM", 6),
)
suite.Keeper.SetParams(suite.Ctx, params)
// fund account
err := suite.App.FundAccount(suite.Ctx, initiator, sdk.NewCoins(initialFunding))
suite.NoError(err, "failed to initially fund account")
// first conversion
err = suite.Keeper.ConvertCosmosCoinToERC20(
suite.Ctx,
initiator,
receiver1,
sdk.NewCoin(allowedDenom, sdkmath.NewInt(6e8)),
)
suite.NoError(err)
// contract should be deployed & registered
contractAddress = suite.denomContractRegistered(allowedDenom)
// sdk coin deducted from initiator
expectedBalance := initialFunding.Sub(amount)
balance := suite.BankKeeper.GetBalance(suite.Ctx, initiator, allowedDenom)
suite.Equal(expectedBalance, balance)
// erc20 minted to receiver
checkBalanceOf(receiver1, amount.Amount)
// total supply of erc20 should have increased
checkTotalSupply(amount.Amount)
})
suite.Run("2nd deploy uses same contract", func() {
// expect no initial balance
checkBalanceOf(receiver2, sdkmath.NewInt(0))
// 2nd conversion
err := suite.Keeper.ConvertCosmosCoinToERC20(
suite.Ctx,
initiator,
receiver2,
sdk.NewCoin(allowedDenom, sdkmath.NewInt(6e8)),
)
suite.NoError(err)
// contract address should not change
convertTwiceContractAddress := suite.denomContractRegistered(allowedDenom)
suite.Equal(contractAddress, convertTwiceContractAddress)
// sdk coin deducted from initiator
expectedBalance := initialFunding.Sub(amount).Sub(amount)
balance := suite.BankKeeper.GetBalance(suite.Ctx, initiator, allowedDenom)
suite.Equal(expectedBalance, balance)
// erc20 minted to receiver
checkBalanceOf(receiver2, amount.Amount)
// total supply of erc20 should have increased
checkTotalSupply(amount.Amount.MulRaw(2))
})
}