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feat: add custom max gas for block for sim config #16656

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merged 10 commits into from
Jun 27, 2023
1 change: 1 addition & 0 deletions CHANGELOG.md
Original file line number Diff line number Diff line change
Expand Up @@ -101,6 +101,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
* (cli) [#16209](https://github.com/cosmos/cosmos-sdk/pull/16209) Make `StartCmd` more customizable.
* (types) [#16257](https://github.com/cosmos/cosmos-sdk/pull/16257) Allow setting the base denom in the denom registry.
* (genutil) [#16046](https://github.com/cosmos/cosmos-sdk/pull/16046) Add "module-name" flag to genutil add-genesis-account to enable intializing module accounts at genesis.
* (sims) [#16656](https://github.com/cosmos/cosmos-sdk/pull/16656) Add custom max gas for block for sim config with unlimited as default.
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nit, can you place the changelog under unreleased?

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updated, is it possible that we backport to v0.46.x as well


### Improvements

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3 changes: 2 additions & 1 deletion types/simulation/config.go
Original file line number Diff line number Diff line change
Expand Up @@ -22,5 +22,6 @@ type Config struct {
OnOperation bool // run slow invariants every operation
AllInvariants bool // print all failed invariants if a broken invariant is found

DBBackend string // custom db backend type
DBBackend string // custom db backend type
BlockMaxGas *int64 // custom max gas for block
}
5 changes: 2 additions & 3 deletions x/simulation/params.go
Original file line number Diff line number Diff line change
Expand Up @@ -176,7 +176,7 @@ func (w WeightedProposalContent) ContentSimulatorFn() simulation.ContentSimulato
// Consensus Params

// randomConsensusParams returns random simulation consensus parameters, it extracts the Evidence from the Staking genesis state.
func randomConsensusParams(r *rand.Rand, appState json.RawMessage, cdc codec.JSONCodec) *cmtproto.ConsensusParams {
func randomConsensusParams(r *rand.Rand, appState json.RawMessage, cdc codec.JSONCodec, maxGas int64) *cmtproto.ConsensusParams {
var genesisState map[string]json.RawMessage
err := json.Unmarshal(appState, &genesisState)
if err != nil {
Expand All @@ -187,7 +187,7 @@ func randomConsensusParams(r *rand.Rand, appState json.RawMessage, cdc codec.JSO
consensusParams := &cmtproto.ConsensusParams{
Block: &cmtproto.BlockParams{
MaxBytes: int64(simulation.RandIntBetween(r, 20000000, 30000000)),
MaxGas: -1,
MaxGas: maxGas,
},
Validator: &cmtproto.ValidatorParams{
PubKeyTypes: []string{types.ABCIPubKeyTypeEd25519},
Expand All @@ -197,7 +197,6 @@ func randomConsensusParams(r *rand.Rand, appState json.RawMessage, cdc codec.JSO
MaxAgeDuration: stakingGenesisState.Params.UnbondingTime,
},
}

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bz, err := json.MarshalIndent(&consensusParams, "", " ")
if err != nil {
panic(err)
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6 changes: 5 additions & 1 deletion x/simulation/simulate.go
Original file line number Diff line number Diff line change
Expand Up @@ -31,8 +31,12 @@ func initChain(
config simulation.Config,
cdc codec.JSONCodec,
) (mockValidators, time.Time, []simulation.Account, string) {
blockMaxGas := int64(-1)
if config.BlockMaxGas != nil {
blockMaxGas = *config.BlockMaxGas
}
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ditto

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The zero value of int64 is 0, but 0 is a valid value for max gas. If we don't use a pointer, we cannot maintain a default behaviour of maxGas with value -1

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Why can't the default be -1 w/o using a pointer?

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updated, but we can't set maxGas as 0 unless pointer

appState, accounts, chainID, genesisTimestamp := appStateFn(r, accounts, config)
consensusParams := randomConsensusParams(r, appState, cdc)
consensusParams := randomConsensusParams(r, appState, cdc, blockMaxGas)
req := abci.RequestInitChain{
AppStateBytes: appState,
ChainId: chainID,
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