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Published: Apr 11, 2023 License: Apache-2.0 Imports: 123 Imported by: 0




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const (

	// Bech32ChainPrefix defines the prefix of this chain
	Bech32ChainPrefix = "i"

	// PrefixAcc is the prefix for account
	PrefixAcc = "a"

	// PrefixValidator is the prefix for validator keys
	PrefixValidator = "v"

	// PrefixConsensus is the prefix for consensus keys
	PrefixConsensus = "c"

	// PrefixPublic is the prefix for public
	PrefixPublic = "p"

	// PrefixAddress is the prefix for address
	PrefixAddress = "a"

	// Bech32PrefixAccAddr defines the Bech32 prefix of an account's address
	Bech32PrefixAccAddr = Bech32ChainPrefix + PrefixAcc + PrefixAddress
	// Bech32PrefixAccPub defines the Bech32 prefix of an account's public key
	Bech32PrefixAccPub = Bech32ChainPrefix + PrefixAcc + PrefixPublic
	// Bech32PrefixValAddr defines the Bech32 prefix of a validator's operator address
	Bech32PrefixValAddr = Bech32ChainPrefix + PrefixValidator + PrefixAddress
	// Bech32PrefixValPub defines the Bech32 prefix of a validator's operator public key
	Bech32PrefixValPub = Bech32ChainPrefix + PrefixValidator + PrefixPublic
	// Bech32PrefixConsAddr defines the Bech32 prefix of a consensus node address
	Bech32PrefixConsAddr = Bech32ChainPrefix + PrefixConsensus + PrefixAddress
	// Bech32PrefixConsPub defines the Bech32 prefix of a consensus node public key
	Bech32PrefixConsPub = Bech32ChainPrefix + PrefixConsensus + PrefixPublic


View Source
var (
	// DefaultNodeHome default home directories for the application daemon
	DefaultNodeHome string

	// ModuleBasics defines the module BasicManager is in charge of setting up basic,
	// non-dependant module elements, such as codec registration
	// and genesis verification.
	ModuleBasics = module.NewBasicManager(
			append(legacyProposalHandlers, corecli.GovHandlers...),
View Source
var (
	FlagGenesisFileValue        string
	FlagParamsFileValue         string
	FlagExportParamsPathValue   string
	FlagExportParamsHeightValue int
	FlagExportStatePathValue    string
	FlagExportStatsPathValue    string
	FlagSeedValue               int64
	FlagInitialBlockHeightValue int
	FlagNumBlocksValue          int
	FlagBlockSizeValue          int
	FlagLeanValue               bool
	FlagCommitValue             bool
	FlagOnOperationValue        bool // TODO: Remove in favor of binary search for invariant violation
	FlagAllInvariantsValue      bool

	FlagEnabledValue     bool
	FlagVerboseValue     bool
	FlagPeriodValue      uint
	FlagGenesisTimeValue int64

List of available flags for the simulator

View Source
var DefaultConsensusParams = &abcitypes.ConsensusParams{
	Block: &abcitypes.BlockParams{
		MaxBytes: 200000,
		MaxGas:   2000000,
	Evidence: &tmproto.EvidenceParams{
		MaxAgeNumBlocks: 302400,
		MaxAgeDuration:  504 * time.Hour,
		MaxBytes:        10000,
	Validator: &tmproto.ValidatorParams{
		PubKeyTypes: []string{

DefaultConsensusParams defines the default Tendermint consensus params used in SimApp testing.


func AddTestAddrs

func AddTestAddrs(app *SimApp, ctx sdk.Context, accNum int, accAmt sdk.Int) []sdk.AccAddress

AddTestAddrs constructs and returns accNum amount of accounts with an initial balance of accAmt in random order

func AddTestAddrsIncremental

func AddTestAddrsIncremental(app *SimApp, ctx sdk.Context, accNum int, accAmt sdk.Int) []sdk.AccAddress

AddTestAddrs constructs and returns accNum amount of accounts with an initial balance of accAmt in random order

func AppStateFn

func AppStateFn(cdc codec.JSONCodec, simManager *module.SimulationManager) simtypes.AppStateFn

AppStateFn 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.

func AppStateFromGenesisFileFn

func AppStateFromGenesisFileFn(r io.Reader, cdc codec.JSONCodec, genesisFile string) (tmtypes.GenesisDoc, []simtypes.Account)

AppStateFromGenesisFileFn util function to generate the genesis AppState from a genesis.json file.

func AppStateRandomizedFn

func AppStateRandomizedFn(
	simManager *module.SimulationManager, r *rand.Rand, cdc codec.JSONCodec,
	accs []simtypes.Account, genesisTimestamp time.Time, appParams simtypes.AppParams,
) (
	json.RawMessage, []simtypes.Account,

AppStateRandomizedFn creates calls each module's GenesisState generator function and creates the simulation params

func CheckBalance

func CheckBalance(t *testing.T, app *SimApp, addr sdk.AccAddress, balances sdk.Coins)

CheckBalance checks the balance of an account.

func CheckExportSimulation

func CheckExportSimulation(app App, config simtypes.Config, params simtypes.Params) error

CheckExportSimulation exports the app state and simulation parameters to JSON if the export paths are defined.

func ConfigureBech32Prefix added in v0.4.0

func ConfigureBech32Prefix()

func ConvertAddrsToValAddrs

func ConvertAddrsToValAddrs(addrs []sdk.AccAddress) []sdk.ValAddress

ConvertAddrsToValAddrs converts the provided addresses to ValAddress.

func CreateTestPubKeys

func CreateTestPubKeys(numPubKeys int) []cryptotypes.PubKey

CreateTestPubKeys returns a total of numPubKeys public keys in ascending order.

func GenSequenceOfTxs

func GenSequenceOfTxs(txGen client.TxConfig, msgs []sdk.Msg, accNums []uint64, initSeqNums []uint64, numToGenerate int, priv ...cryptotypes.PrivKey) ([]sdk.Tx, error)

GenSequenceOfTxs generates a set of signed transactions of messages, such that they differ only by having the sequence numbers incremented between every transaction.

func GetMaccPerms

func GetMaccPerms() map[string][]string

GetMaccPerms returns a copy of the module account permissions

func GetSimulationLog

func GetSimulationLog(storeName string, sdr sdk.StoreDecoderRegistry, kvAs, kvBs []kv.Pair) (log string)

GetSimulationLog unmarshals the KVPair's Value to the corresponding type based on the each's module store key and the prefix bytes of the KVPair's key.

func GetSimulatorFlags

func GetSimulatorFlags()

GetSimulatorFlags gets the values of all the available simulation flags

func MakeCodecs

func MakeCodecs() (codec.Codec, *codec.LegacyAmino)

MakeCodecs constructs the *std.Codec and *codec.LegacyAmino instances used by simapp. It is useful for tests and clients who do not want to construct the full simapp

func MakeTestEncodingConfig

func MakeTestEncodingConfig() simappparams.EncodingConfig

MakeTestEncodingConfig creates an EncodingConfig for testing. This function should be used only internally (in the SDK). App user should'nt create new codecs - use the app.AppCodec instead. [DEPRECATED]

func NewConfigFromFlags

func NewConfigFromFlags() simulation.Config

NewConfigFromFlags creates a simulation from the retrieved values of the flags.

func NewPubKeyFromHex

func NewPubKeyFromHex(pk string) (res cryptotypes.PubKey)

NewPubKeyFromHex returns a PubKey from a hex string.

func PrintStats

func PrintStats(db dbm.DB)

PrintStats prints the corresponding statistics from the app DB.

func RegisterSwaggerAPI

func RegisterSwaggerAPI(ctx client.Context, rtr *mux.Router)

RegisterSwaggerAPI registers swagger route with API Server

func SetupSimulation

func SetupSimulation(dirPrefix, dbName string) (simtypes.Config, dbm.DB, string, log.Logger, bool, error)

SetupSimulation creates the config, db (levelDB), temporary directory and logger for the simulation tests. If `FlagEnabledValue` is false it skips the current test. Returns error on an invalid db intantiation or temp dir creation.

func SignAndDeliver

func SignAndDeliver(
	t *testing.T, txCfg client.TxConfig, app *bam.BaseApp, header tmproto.Header, msgs []sdk.Msg,
	chainID string, accNums, accSeqs []uint64, expSimPass, expPass bool, priv ...cryptotypes.PrivKey,
) (sdk.GasInfo, *sdk.Result, error)

SignAndDeliver signs and delivers a transaction. No simulation occurs as the ibc testing package causes checkState and deliverState to diverge in block time.

CONTRACT: BeginBlock must be called before this function.

func SimulationOperations

func SimulationOperations(app App, cdc codec.JSONCodec, config simtypes.Config) []simtypes.WeightedOperation

SimulationOperations retrieves the simulation params from the provided file path and returns all the modules weighted operations

func TestAddr

func TestAddr(addr string, bech string) (sdk.AccAddress, error)


type App

type App interface {
	// The assigned name of the app.
	Name() string

	// The application types codec.
	// NOTE: This shoult be sealed before being returned.
	LegacyAmino() *codec.LegacyAmino

	// Application updates every begin block.
	BeginBlocker(ctx sdk.Context, req abci.RequestBeginBlock) abci.ResponseBeginBlock

	// Application updates every end block.
	EndBlocker(ctx sdk.Context, req abci.RequestEndBlock) abci.ResponseEndBlock

	// Application update at chain (i.e app) initialization.
	InitChainer(ctx sdk.Context, req abci.RequestInitChain) abci.ResponseInitChain

	// Loads the app at a given height.
	LoadHeight(height int64) error

	// Exports the state of the application for a genesis file.
		forZeroHeight bool, jailAllowedAddrs []string,
	) (types.ExportedApp, error)

	// All the registered module account addreses.
	ModuleAccountAddrs() map[string]bool

	// Helper for the simulation framework.
	SimulationManager() *module.SimulationManager

App implements the common methods for a Cosmos SDK-based application specific blockchain.

type EmptyAppOptions

type EmptyAppOptions struct{}

EmptyAppOptions is a stub implementing AppOptions

func (EmptyAppOptions) Get

func (ao EmptyAppOptions) Get(o string) interface{}

Get implements AppOptions

type GenerateAccountStrategy

type GenerateAccountStrategy func(int) []sdk.AccAddress

type GenesisState

type GenesisState map[string]json.RawMessage

The genesis state of the blockchain is represented here as a map of raw json messages key'd by a identifier string. The identifier is used to determine which module genesis information belongs to so it may be appropriately routed during init chain. Within this application default genesis information is retrieved from the ModuleBasicManager which populates json from each BasicModule object provided to it during init.

func NewDefaultGenesisState

func NewDefaultGenesisState(cdc codec.JSONCodec) GenesisState

NewDefaultGenesisState generates the default state for the application.

type SimApp

type SimApp struct {

	// keepers
	AccountKeeper     authkeeper.AccountKeeper
	BankKeeper        bankkeeper.Keeper
	CapabilityKeeper  *capabilitykeeper.Keeper
	NftKeeper         nftkeeper.Keeper
	MtKeeper          mtkeeper.Keeper
	StakingKeeper     stakingkeeper.Keeper
	SlashingKeeper    slashingkeeper.Keeper
	MintKeeper        mintkeeper.Keeper
	DistrKeeper       distrkeeper.Keeper
	GovKeeper         govkeeper.Keeper
	CrisisKeeper      crisiskeeper.Keeper
	UpgradeKeeper     upgradekeeper.Keeper
	ParamsKeeper      paramskeeper.Keeper
	TIBCKeeper        *tibckeeper.Keeper // TIBC Keeper must be a pointer in the app, so we can SetRouter on it correctly
	NftTransferKeeper tibcnfttransferkeeper.Keeper
	MtTransferKeeper  tibcmttransferkeeper.Keeper
	EvidenceKeeper    evidencekeeper.Keeper
	FeeGrantKeeper    feegrantkeeper.Keeper

	// make scoped keepers public for test purposes
	ScopedTIBCKeeper     capabilitykeeper.ScopedKeeper
	ScopedTIBCMockKeeper capabilitykeeper.ScopedKeeper
	// contains filtered or unexported fields

SimApp extends an ABCI application, but with most of its parameters exported. They are exported for convenience in creating helper functions, as object capabilities aren't needed for testing.

func NewSimApp

func NewSimApp(
	logger log.Logger, db dbm.DB, traceStore io.Writer, loadLatest bool, skipUpgradeHeights map[int64]bool,
	homePath string, invCheckPeriod uint, encodingConfig simappparams.EncodingConfig,
	appOpts servertypes.AppOptions, baseAppOptions ...func(*baseapp.BaseApp),
) *SimApp

NewSimApp returns a reference to an initialized SimApp.

func Setup

func Setup(isCheckTx bool) *SimApp

Setup initializes a new SimApp. A Nop logger is set in SimApp.

func SetupWithGenesisValSet

func SetupWithGenesisValSet(valSet *tmtypes.ValidatorSet, genAccs []authtypes.GenesisAccount, balances ...banktypes.Balance) *SimApp

SetupWithGenesisValSet initializes a new SimApp with a validator set and genesis accounts that also act as delegators. For simplicity, each validator is bonded with a delegation of one consensus engine unit in the default token of the simapp from first genesis account. A Nop logger is set in SimApp.

func (*SimApp) AppCodec

func (app *SimApp) AppCodec() codec.Codec

AppCodec returns SimApp's app codec.

NOTE: This is solely to be used for testing purposes as it may be desirable for modules to register their own custom testing types.

func (*SimApp) BeginBlocker

func (app *SimApp) BeginBlocker(ctx sdk.Context, req abci.RequestBeginBlock) abci.ResponseBeginBlock

BeginBlocker application updates every begin block

func (*SimApp) EndBlocker

func (app *SimApp) EndBlocker(ctx sdk.Context, req abci.RequestEndBlock) abci.ResponseEndBlock

EndBlocker application updates every end block

func (*SimApp) ExportAppStateAndValidators

func (app *SimApp) ExportAppStateAndValidators(
	forZeroHeight bool, jailAllowedAddrs []string,
) (servertypes.ExportedApp, error)

ExportAppStateAndValidators exports the state of the application for a genesis file.

func (*SimApp) GetKey

func (app *SimApp) GetKey(storeKey string) *storetypes.KVStoreKey

GetKey returns the KVStoreKey for the provided store key.

NOTE: This is solely to be used for testing purposes.

func (*SimApp) GetMemKey

func (app *SimApp) GetMemKey(storeKey string) *storetypes.MemoryStoreKey

GetMemKey returns the MemStoreKey for the provided mem key.

NOTE: This is solely used for testing purposes.

func (*SimApp) GetSubspace

func (app *SimApp) GetSubspace(moduleName string) paramstypes.Subspace

GetSubspace returns a param subspace for a given module name.

NOTE: This is solely to be used for testing purposes.

func (*SimApp) GetTKey

func (app *SimApp) GetTKey(storeKey string) *storetypes.TransientStoreKey

GetTKey returns the TransientStoreKey for the provided store key.

NOTE: This is solely to be used for testing purposes.

func (*SimApp) InitChainer

func (app *SimApp) InitChainer(ctx sdk.Context, req abci.RequestInitChain) abci.ResponseInitChain

InitChainer application update at chain initialization

func (*SimApp) InterfaceRegistry

func (app *SimApp) InterfaceRegistry() types.InterfaceRegistry

InterfaceRegistry returns SimApp's InterfaceRegistry

func (*SimApp) LegacyAmino

func (app *SimApp) LegacyAmino() *codec.LegacyAmino

LegacyAmino returns SimApp's amino codec.

NOTE: This is solely to be used for testing purposes as it may be desirable for modules to register their own custom testing types.

func (*SimApp) LoadHeight

func (app *SimApp) LoadHeight(height int64) error

LoadHeight loads a particular height

func (*SimApp) ModuleAccountAddrs

func (app *SimApp) ModuleAccountAddrs() map[string]bool

ModuleAccountAddrs returns all the app's module account addresses.

func (*SimApp) Name

func (app *SimApp) Name() string

Name returns the name of the App

func (*SimApp) RegisterAPIRoutes

func (app *SimApp) RegisterAPIRoutes(apiSvr *api.Server, apiConfig config.APIConfig)

RegisterAPIRoutes registers all application module routes with the provided API server.

func (*SimApp) RegisterTendermintService

func (app *SimApp) RegisterTendermintService(clientCtx client.Context)

RegisterTendermintService implements the Application.RegisterTendermintService method.

func (*SimApp) RegisterTxService

func (app *SimApp) RegisterTxService(clientCtx client.Context)

RegisterTxService implements the Application.RegisterTxService method.

func (*SimApp) SimulationManager

func (app *SimApp) SimulationManager() *module.SimulationManager

SimulationManager implements the SimulationApp interface

type SimGenesisAccount

type SimGenesisAccount struct {

	// vesting account fields
	OriginalVesting  sdk.Coins `json:"original_vesting" yaml:"original_vesting"`   // total vesting coins upon initialization
	DelegatedFree    sdk.Coins `json:"delegated_free" yaml:"delegated_free"`       // delegated vested coins at time of delegation
	DelegatedVesting sdk.Coins `json:"delegated_vesting" yaml:"delegated_vesting"` // delegated vesting coins at time of delegation
	StartTime        int64     `json:"start_time" yaml:"start_time"`               // vesting start time (UNIX Epoch time)
	EndTime          int64     `json:"end_time" yaml:"end_time"`                   // vesting end time (UNIX Epoch time)

	// module account fields
	ModuleName        string   `json:"module_name" yaml:"module_name"`               // name of the module account
	ModulePermissions []string `json:"module_permissions" yaml:"module_permissions"` // permissions of module account

SimGenesisAccount defines a type that implements the GenesisAccount interface to be used for simulation accounts in the genesis state.

func (SimGenesisAccount) Validate

func (sga SimGenesisAccount) Validate() error

Validate checks for errors on the vesting and module account parameters


Path Synopsis
Package params defines the simulation parameters in the simapp.
Package params defines the simulation parameters in the simapp.

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