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types.go
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/
types.go
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package simulation
import (
"math/rand"
"time"
"github.com/cosmos/cosmos-sdk/baseapp"
sdk "github.com/cosmos/cosmos-sdk/types"
abci "github.com/tendermint/tendermint/abci/types"
"github.com/tendermint/tendermint/crypto"
)
type (
// Operation runs a state machine transition,
// and ensures the transition happened as expected.
// The operation could be running and testing a fuzzed transaction,
// or doing the same for a message.
//
// For ease of debugging,
// an operation returns a descriptive message "action",
// which details what this fuzzed state machine transition actually did.
//
// Operations can optionally provide a list of "FutureOperations" to run later
// These will be ran at the beginning of the corresponding block.
Operation func(r *rand.Rand, app *baseapp.BaseApp, ctx sdk.Context,
accounts []Account, event func(string),
) (action string, futureOperations []FutureOperation, err error)
// RandSetup performs the random setup the mock module needs.
RandSetup func(r *rand.Rand, accounts []Account)
// An Invariant is a function which tests a particular invariant.
// If the invariant has been broken, it should return an error
// containing a descriptive message about what happened.
// The simulator will then halt and print the logs.
Invariant func(app *baseapp.BaseApp, header abci.Header) error
// Account contains a privkey, pubkey, address tuple
// eventually more useful data can be placed in here.
// (e.g. number of coins)
Account struct {
PrivKey crypto.PrivKey
PubKey crypto.PubKey
Address sdk.AccAddress
}
mockValidator struct {
val abci.ValidatorUpdate
livenessState int
}
// FutureOperation is an operation which will be ran at the
// beginning of the provided BlockHeight.
// If both a BlockHeight and BlockTime are specified, it will use the BlockHeight.
// In the (likely) event that multiple operations are queued at the same
// block height, they will execute in a FIFO pattern.
FutureOperation struct {
BlockHeight int
BlockTime time.Time
Op Operation
}
// WeightedOperation is an operation with associated weight.
// This is used to bias the selection operation within the simulator.
WeightedOperation struct {
Weight int
Op Operation
}
)
// TODO remove? not being called anywhere
// PeriodicInvariant returns an Invariant function closure that asserts
// a given invariant if the mock application's last block modulo the given
// period is congruent to the given offset.
func PeriodicInvariant(invariant Invariant, period int, offset int) Invariant {
return func(app *baseapp.BaseApp, header abci.Header) error {
if int(app.LastBlockHeight())%period == offset {
return invariant(app, header)
}
return nil
}
}
// nolint
func (acc Account) Equals(acc2 Account) bool {
return acc.Address.Equals(acc2.Address)
}