package e2e_test import ( "context" "math/big" "strings" "testing" "time" "github.com/stretchr/testify/suite" sdkmath "cosmossdk.io/math" "github.com/cosmos/cosmos-sdk/client/grpc/tmservice" sdk "github.com/cosmos/cosmos-sdk/types" banktypes "github.com/cosmos/cosmos-sdk/x/bank/types" ibctypes "github.com/cosmos/ibc-go/v6/modules/apps/transfer/types" ibcclienttypes "github.com/cosmos/ibc-go/v6/modules/core/02-client/types" ethtypes "github.com/ethereum/go-ethereum/core/types" emtypes "github.com/evmos/ethermint/types" "github.com/kava-labs/kava/app" "github.com/kava-labs/kava/tests/e2e/testutil" "github.com/kava-labs/kava/tests/util" ) var ( minEvmGasPrice = big.NewInt(1e10) // akava ) func ukava(amt int64) sdk.Coin { return sdk.NewCoin("ukava", sdkmath.NewInt(amt)) } type IntegrationTestSuite struct { testutil.E2eTestSuite } func TestIntegrationTestSuite(t *testing.T) { suite.Run(t, new(IntegrationTestSuite)) } // example test that queries kava via SDK and EVM func (suite *IntegrationTestSuite) TestChainID() { expectedEvmNetworkId, err := emtypes.ParseChainID(suite.Kava.ChainId) suite.NoError(err) // EVM query evmNetworkId, err := suite.Kava.EvmClient.NetworkID(context.Background()) suite.NoError(err) suite.Equal(expectedEvmNetworkId, evmNetworkId) // SDK query nodeInfo, err := suite.Kava.Tm.GetNodeInfo(context.Background(), &tmservice.GetNodeInfoRequest{}) suite.NoError(err) suite.Equal(suite.Kava.ChainId, nodeInfo.DefaultNodeInfo.Network) } // example test that funds a new account & queries its balance func (suite *IntegrationTestSuite) TestFundedAccount() { funds := ukava(1e7) acc := suite.Kava.NewFundedAccount("example-acc", sdk.NewCoins(funds)) // check that the sdk & evm signers are for the same account suite.Equal(acc.SdkAddress.String(), util.EvmToSdkAddress(acc.EvmAddress).String()) suite.Equal(acc.EvmAddress.Hex(), util.SdkToEvmAddress(acc.SdkAddress).Hex()) // check balance via SDK query res, err := suite.Kava.Bank.Balance(context.Background(), banktypes.NewQueryBalanceRequest( acc.SdkAddress, "ukava", )) suite.NoError(err) suite.Equal(funds, *res.Balance) // check balance via EVM query akavaBal, err := suite.Kava.EvmClient.BalanceAt(context.Background(), acc.EvmAddress, nil) suite.NoError(err) suite.Equal(funds.Amount.MulRaw(1e12).BigInt(), akavaBal) } // example test that signs & broadcasts an EVM tx func (suite *IntegrationTestSuite) TestTransferOverEVM() { // fund an account that can perform the transfer initialFunds := ukava(1e7) // 10 KAVA acc := suite.Kava.NewFundedAccount("evm-test-transfer", sdk.NewCoins(initialFunds)) // get a rando account to send kava to randomAddr := app.RandomAddress() to := util.SdkToEvmAddress(randomAddr) // example fetching of nonce (account sequence) nonce, err := suite.Kava.EvmClient.PendingNonceAt(context.Background(), acc.EvmAddress) suite.NoError(err) suite.Equal(uint64(0), nonce) // sanity check. the account should have no prior txs // transfer kava over EVM kavaToTransfer := big.NewInt(1e18) // 1 KAVA; akava has 18 decimals. req := util.EvmTxRequest{ Tx: ethtypes.NewTransaction(nonce, to, kavaToTransfer, 1e5, minEvmGasPrice, nil), Data: "any ol' data to track this through the system", } res := acc.SignAndBroadcastEvmTx(req) suite.NoError(res.Err) suite.Equal(ethtypes.ReceiptStatusSuccessful, res.Receipt.Status) // evm txs refund unused gas. so to know the expected balance we need to know how much gas was used. ukavaUsedForGas := sdkmath.NewIntFromBigInt(minEvmGasPrice). Mul(sdkmath.NewIntFromUint64(res.Receipt.GasUsed)). QuoRaw(1e12) // convert akava to ukava // expect (9 - gas used) KAVA remaining in account. balance := suite.Kava.QuerySdkForBalances(acc.SdkAddress) suite.Equal(sdkmath.NewInt(9e6).Sub(ukavaUsedForGas), balance.AmountOf("ukava")) } // TestIbcTransfer transfers KAVA from the primary kava chain (suite.Kava) to the ibc chain (suite.Ibc). // Note that because the IBC chain also runs kava's binary, this tests both the sending & receiving. func (suite *IntegrationTestSuite) TestIbcTransfer() { suite.SkipIfIbcDisabled() // ARRANGE // setup kava account funds := ukava(1e7) // 10 KAVA kavaAcc := suite.Kava.NewFundedAccount("ibc-transfer-kava-side", sdk.NewCoins(funds)) // setup ibc account ibcAcc := suite.Ibc.NewFundedAccount("ibc-transfer-ibc-side", sdk.NewCoins()) gasLimit := int64(2e5) fee := ukava(7500) fundsToSend := ukava(5e6) // 5 KAVA transferMsg := ibctypes.NewMsgTransfer( testutil.IbcPort, testutil.IbcChannel, fundsToSend, kavaAcc.SdkAddress.String(), ibcAcc.SdkAddress.String(), ibcclienttypes.NewHeight(0, 0), // timeout height disabled when 0 uint64(time.Now().Add(30*time.Second).UnixNano()), "", ) // initial - sent - fee expectedSrcBalance := funds.Sub(fundsToSend).Sub(fee) // ACT // IBC transfer from kava -> ibc transferTo := util.KavaMsgRequest{ Msgs: []sdk.Msg{transferMsg}, GasLimit: uint64(gasLimit), FeeAmount: sdk.NewCoins(fee), Memo: "sent from Kava!", } res := kavaAcc.SignAndBroadcastKavaTx(transferTo) // ASSERT suite.NoError(res.Err) // the balance should be deducted from kava account suite.Eventually(func() bool { balance := suite.Kava.QuerySdkForBalances(kavaAcc.SdkAddress) return balance.AmountOf("ukava").Equal(expectedSrcBalance.Amount) }, 10*time.Second, 1*time.Second) // expect the balance to be transferred to the ibc chain! suite.Eventually(func() bool { balance := suite.Ibc.QuerySdkForBalances(ibcAcc.SdkAddress) found := false for _, c := range balance { // find the ibc denom coin if strings.HasPrefix(c.Denom, "ibc/") { suite.Equal(fundsToSend.Amount, c.Amount) found = true } } return found }, 15*time.Second, 1*time.Second) }