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493ce0516f
Add upgrade handler Migrates from x/evmutil to x/precisebank: - Fractional balances - Reserve funds - Mints or burns coins to ensure fractional balances are fully backed. Initialize remainder if necessary to ensure valid state. E2E test with fixed kvtool
103 lines
3.7 KiB
Go
103 lines
3.7 KiB
Go
package e2e_test
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import (
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banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
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precisebanktypes "github.com/kava-labs/kava/x/precisebank/types"
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)
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func (suite *IntegrationTestSuite) TestUpgrade_PreciseBankReserveTransfer() {
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suite.SkipIfUpgradeDisabled()
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beforeUpgradeCtx := suite.Kava.Grpc.CtxAtHeight(suite.UpgradeHeight - 1)
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afterUpgradeCtx := suite.Kava.Grpc.CtxAtHeight(suite.UpgradeHeight)
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grpcClient := suite.Kava.Grpc
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// -----------------------------
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// Get initial reserve balances
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evmutilAddr := "kava1w9vxuke5dz6hyza2j932qgmxltnfxwl78u920k"
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precisebankAddr := "kava12yfe2jaupmtjruwxsec7hg7er60fhaa4uz7ffl"
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previousEvmutilBalRes, err := grpcClient.Query.Bank.Balance(beforeUpgradeCtx, &banktypes.QueryBalanceRequest{
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Address: evmutilAddr,
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Denom: precisebanktypes.IntegerCoinDenom,
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})
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suite.Require().NoError(err)
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suite.Require().NotNil(previousEvmutilBalRes.Balance)
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suite.Require().True(
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previousEvmutilBalRes.Balance.Amount.IsPositive(),
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"should have reserve balance before upgrade",
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)
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previousPrecisebankBalRes, err := grpcClient.Query.Bank.Balance(beforeUpgradeCtx, &banktypes.QueryBalanceRequest{
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Address: precisebankAddr,
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Denom: precisebanktypes.IntegerCoinDenom,
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})
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suite.Require().NoError(err)
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suite.Require().NotNil(previousPrecisebankBalRes.Balance)
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suite.Require().True(
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previousPrecisebankBalRes.Balance.Amount.IsZero(),
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"should be empty before upgrade",
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)
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suite.T().Logf("x/evmutil balances before upgrade: %s", previousEvmutilBalRes.Balance)
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suite.T().Logf("x/precisebank balances before upgrade: %s", previousPrecisebankBalRes.Balance)
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// -----------------------------
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// After upgrade
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// - Check reserve balance transfer
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// - Check reserve fully backs fractional amounts
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afterEvmutilBalRes, err := grpcClient.Query.Bank.Balance(afterUpgradeCtx, &banktypes.QueryBalanceRequest{
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Address: evmutilAddr,
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Denom: precisebanktypes.IntegerCoinDenom,
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})
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suite.Require().NoError(err)
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suite.Require().NotNil(afterEvmutilBalRes.Balance)
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suite.Require().Truef(
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afterEvmutilBalRes.Balance.Amount.IsZero(),
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"should have transferred all reserve balance to precisebank, expected 0 but got %s",
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afterEvmutilBalRes.Balance,
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)
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afterPrecisebankBalRes, err := grpcClient.Query.Bank.Balance(afterUpgradeCtx, &banktypes.QueryBalanceRequest{
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Address: precisebankAddr,
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Denom: precisebanktypes.IntegerCoinDenom,
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})
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suite.Require().NoError(err)
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suite.Require().NotNil(afterPrecisebankBalRes.Balance)
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// 2 total in reserve- genesis.json has 5 accounts with fractional balances
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// totalling 2 integer coins
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suite.Require().Equal(int64(2), afterPrecisebankBalRes.Balance.Amount.Int64())
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suite.T().Logf("x/evmutil balances after upgrade: %s", afterEvmutilBalRes.Balance)
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suite.T().Logf("x/precisebank balances after upgrade: %s", afterPrecisebankBalRes.Balance)
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sumFractional, err := grpcClient.Query.Precisebank.TotalFractionalBalances(
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afterUpgradeCtx,
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&precisebanktypes.QueryTotalFractionalBalancesRequest{},
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)
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suite.Require().NoError(err)
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suite.Require().Equal(
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sumFractional.Total.Amount,
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afterPrecisebankBalRes.Balance.Amount.Mul(precisebanktypes.ConversionFactor()),
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"reserve should match exactly sum fractional balances",
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)
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// Check remainder + total fractional balances = reserve balance
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remainderRes, err := grpcClient.Query.Precisebank.Remainder(
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afterUpgradeCtx,
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&precisebanktypes.QueryRemainderRequest{},
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)
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suite.Require().NoError(err)
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sumFractionalAndRemainder := sumFractional.Total.Add(remainderRes.Remainder)
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reserveBalanceExtended := afterPrecisebankBalRes.Balance.Amount.Mul(precisebanktypes.ConversionFactor())
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suite.Require().Equal(
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sumFractionalAndRemainder.Amount,
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reserveBalanceExtended,
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"remainder + sum(fractional balances) should be = reserve balance",
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)
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}
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