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feat: add extend cb with genesisState for sim test (backport: #15305) #15349

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Mar 10, 2023
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feat: add extend cb with genesisState for sim test (backport: #15305) #15349

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112713d
allow pass genesisState when call with extend
mmsqe Mar 10, 2023
7cdf230
add AppStateRandomizedFnWithState
mmsqe Mar 10, 2023
9c89683
update comment
mmsqe Mar 10, 2023
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4 changes: 3 additions & 1 deletion CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -36,7 +36,9 @@ Ref: https://keepachangelog.com/en/1.0.0/
# Changelog

## [Unreleased]
* (simapp) [#15305](https://github.com/cosmos/cosmos-sdk/pull/15305) Add `AppStateFnWithExtendedCb` with callback function to extend rawState.

### Improvements
* (simapp) [#15305](https://github.com/cosmos/cosmos-sdk/pull/15305) Add `AppStateFnWithExtendedCb` with callback function to extend rawState and `AppStateRandomizedFnWithState` with extra genesisState argument which is the genesis state of the app.

## [v0.46.11](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.46.11) - 2022-03-03

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29 changes: 24 additions & 5 deletions simapp/state.go
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Expand Up @@ -27,14 +27,21 @@ import (
// It panics if the user provides files for both of them.
// If a file is not given for the genesis or the sim params, it creates a randomized one.
func AppStateFn(cdc codec.JSONCodec, simManager *module.SimulationManager) simtypes.AppStateFn {
return AppStateFnWithExtendedCb(cdc, simManager, nil)
genesisState := NewDefaultGenesisState(cdc)
return AppStateFnWithExtendedCb(cdc, simManager, genesisState, nil)
}

// AppStateFnWithExtendedCb returns the initial application state using a genesis or the simulation parameters.
// It panics if the user provides files for both of them.
// If a file is not given for the genesis or the sim params, it creates a randomized one.
// genesisState is the genesis state of the app.
// cb is the callback function to extend rawState.
func AppStateFnWithExtendedCb(cdc codec.JSONCodec, simManager *module.SimulationManager, cb func(rawState map[string]json.RawMessage)) simtypes.AppStateFn {
func AppStateFnWithExtendedCb(
cdc codec.JSONCodec,
simManager *module.SimulationManager,
genesisState map[string]json.RawMessage,
cb func(rawState map[string]json.RawMessage),
) simtypes.AppStateFn {
return func(r *rand.Rand, accs []simtypes.Account, config simtypes.Config,
) (appState json.RawMessage, simAccs []simtypes.Account, chainID string, genesisTimestamp time.Time) {
if FlagGenesisTimeValue == 0 {
Expand Down Expand Up @@ -72,11 +79,11 @@ func AppStateFnWithExtendedCb(cdc codec.JSONCodec, simManager *module.Simulation
if err != nil {
panic(err)
}
appState, simAccs = AppStateRandomizedFn(simManager, r, cdc, accs, genesisTimestamp, appParams)
appState, simAccs = AppStateRandomizedFnWithState(simManager, r, cdc, accs, genesisTimestamp, appParams, genesisState)

default:
appParams := make(simtypes.AppParams)
appState, simAccs = AppStateRandomizedFn(simManager, r, cdc, accs, genesisTimestamp, appParams)
appState, simAccs = AppStateRandomizedFnWithState(simManager, r, cdc, accs, genesisTimestamp, appParams, genesisState)
}

rawState := make(map[string]json.RawMessage)
Expand Down Expand Up @@ -155,8 +162,20 @@ func AppStateRandomizedFn(
simManager *module.SimulationManager, r *rand.Rand, cdc codec.JSONCodec,
accs []simtypes.Account, genesisTimestamp time.Time, appParams simtypes.AppParams,
) (json.RawMessage, []simtypes.Account) {
numAccs := int64(len(accs))
genesisState := NewDefaultGenesisState(cdc)
return AppStateRandomizedFnWithState(simManager, r, cdc, accs, genesisTimestamp, appParams, genesisState)
}

// AppStateRandomizedFnWithState creates calls each module's GenesisState generator function
// and creates the simulation params
// genesisState is the genesis state of the app.
// This function will not exist in v0.47, but be replaced by AppStateRandomizedFn with an extra genesisState argument.
func AppStateRandomizedFnWithState(
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Can you add a comment that this will not exist in v0.47, but be replaced by AppStateRandomizedFn with an extra argument?

simManager *module.SimulationManager, r *rand.Rand, cdc codec.JSONCodec,
accs []simtypes.Account, genesisTimestamp time.Time, appParams simtypes.AppParams,
genesisState map[string]json.RawMessage,
) (json.RawMessage, []simtypes.Account) {
numAccs := int64(len(accs))

// generate a random amount of initial stake coins and a random initial
// number of bonded accounts
Expand Down