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operations.go
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operations.go
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package simulation
import (
"math/rand"
"time"
"github.com/cosmos/cosmos-sdk/baseapp"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
simtypes "github.com/cosmos/cosmos-sdk/types/simulation"
"github.com/cosmos/cosmos-sdk/x/simulation"
appparams "github.com/crescent-network/crescent/v5/app/params"
utils "github.com/crescent-network/crescent/v5/types"
"github.com/crescent-network/crescent/v5/x/exchange/keeper"
"github.com/crescent-network/crescent/v5/x/exchange/types"
)
// Simulation operation weights constants.
const (
OpWeightMsgCreateMarket = "op_weight_msg_create_market"
OpWeightMsgPlaceLimitOrder = "op_weight_msg_place_limit_order"
OpWeightMsgPlaceMMLimitOrder = "op_weight_msg_place_mm_limit_order"
OpWeightMsgPlaceMarketOrder = "op_weight_msg_place_market_order"
OpWeightMsgCancelOrder = "op_weight_msg_cancel_order"
OpWeightMsgCancelAllOrders = "op_weight_msg_cancel_all_orders"
OpWeightMsgSwapExactAmountIn = "op_weight_msg_swap_exact_amount_in"
DefaultWeightMsgCreateMarket = 10
DefaultWeightMsgPlaceLimitOrder = 90
DefaultWeightMsgPlaceMMLimitOrder = 50
DefaultWeightMsgPlaceMarketOrder = 90
DefaultWeightMsgCancelOrder = 20
DefaultWeightMsgCancelAllOrders = 10
DefaultWeightMsgSwapExactAmountIn = 80
)
var (
gas = uint64(20000000)
fees = sdk.Coins{sdk.NewInt64Coin(sdk.DefaultBondDenom, 0)}
)
// WeightedOperations returns all the operations from the module with their respective weights.
func WeightedOperations(
appParams simtypes.AppParams, cdc codec.JSONCodec,
ak types.AccountKeeper, bk types.BankKeeper, k keeper.Keeper,
) simulation.WeightedOperations {
var (
weightMsgCreateMarket int
weightMsgPlaceLimitOrder int
weightMsgPlaceMMLimitOrder int
weightMsgPlaceMarketOrder int
weightMsgCancelOrder int
weightMsgCancelAllOrders int
weightMsgSwapExactAmountIn int
)
appParams.GetOrGenerate(cdc, OpWeightMsgCreateMarket, &weightMsgCreateMarket, nil, func(_ *rand.Rand) {
weightMsgCreateMarket = DefaultWeightMsgCreateMarket
})
appParams.GetOrGenerate(cdc, OpWeightMsgPlaceLimitOrder, &weightMsgPlaceLimitOrder, nil, func(_ *rand.Rand) {
weightMsgPlaceLimitOrder = DefaultWeightMsgPlaceLimitOrder
})
appParams.GetOrGenerate(cdc, OpWeightMsgPlaceMMLimitOrder, &weightMsgPlaceMMLimitOrder, nil, func(_ *rand.Rand) {
weightMsgPlaceMMLimitOrder = DefaultWeightMsgPlaceMMLimitOrder
})
appParams.GetOrGenerate(cdc, OpWeightMsgPlaceMarketOrder, &weightMsgPlaceMarketOrder, nil, func(_ *rand.Rand) {
weightMsgPlaceMarketOrder = DefaultWeightMsgPlaceMarketOrder
})
appParams.GetOrGenerate(cdc, OpWeightMsgCancelOrder, &weightMsgCancelOrder, nil, func(_ *rand.Rand) {
weightMsgCancelOrder = DefaultWeightMsgCancelOrder
})
appParams.GetOrGenerate(cdc, OpWeightMsgCancelAllOrders, &weightMsgCancelAllOrders, nil, func(_ *rand.Rand) {
weightMsgCancelAllOrders = DefaultWeightMsgCancelAllOrders
})
appParams.GetOrGenerate(cdc, OpWeightMsgSwapExactAmountIn, &weightMsgSwapExactAmountIn, nil, func(_ *rand.Rand) {
weightMsgSwapExactAmountIn = DefaultWeightMsgSwapExactAmountIn
})
return simulation.WeightedOperations{
simulation.NewWeightedOperation(
weightMsgCreateMarket,
SimulateMsgCreateMarket(ak, bk, k),
),
simulation.NewWeightedOperation(
weightMsgPlaceLimitOrder,
SimulateMsgPlaceLimitOrder(ak, bk, k),
),
simulation.NewWeightedOperation(
weightMsgPlaceMMLimitOrder,
SimulateMsgPlaceMMLimitOrder(ak, bk, k),
),
simulation.NewWeightedOperation(
weightMsgPlaceMarketOrder,
SimulateMsgPlaceMarketOrder(ak, bk, k),
),
simulation.NewWeightedOperation(
weightMsgCancelOrder,
SimulateMsgCancelOrder(ak, bk, k),
),
simulation.NewWeightedOperation(
weightMsgCancelAllOrders,
SimulateMsgCancelAllOrders(ak, bk, k),
),
simulation.NewWeightedOperation(
weightMsgSwapExactAmountIn,
SimulateMsgSwapExactAmountIn(ak, bk, k),
),
}
}
func SimulateMsgCreateMarket(
ak types.AccountKeeper, bk types.BankKeeper, k keeper.Keeper,
) simtypes.Operation {
return func(
r *rand.Rand, app *baseapp.BaseApp, ctx sdk.Context,
accs []simtypes.Account, chainID string,
) (simtypes.OperationMsg, []simtypes.FutureOperation, error) {
simAccount, msg, found := findMsgCreateMarketParams(r, accs, bk, k, ctx)
if !found {
return simtypes.NoOpMsg(
types.ModuleName, types.TypeMsgCreateMarket, "unable to create market"), nil, nil
}
txCtx := simulation.OperationInput{
R: r,
App: app,
TxGen: appparams.MakeTestEncodingConfig().TxConfig,
Msg: msg,
MsgType: msg.Type(),
Context: ctx,
SimAccount: simAccount,
AccountKeeper: ak,
Bankkeeper: bk,
ModuleName: types.ModuleName,
CoinsSpentInMsg: bk.SpendableCoins(ctx, simAccount.Address),
}
return utils.GenAndDeliverTxWithFees(txCtx, gas, fees)
}
}
func SimulateMsgPlaceLimitOrder(
ak types.AccountKeeper, bk types.BankKeeper, k keeper.Keeper,
) simtypes.Operation {
return func(
r *rand.Rand, app *baseapp.BaseApp, ctx sdk.Context,
accs []simtypes.Account, chainID string,
) (simtypes.OperationMsg, []simtypes.FutureOperation, error) {
simAccount, msg, found := findMsgPlaceLimitOrderParams(r, accs, bk, k, ctx)
if !found {
return simtypes.NoOpMsg(
types.ModuleName, types.TypeMsgPlaceLimitOrder, "unable to place limit order"), nil, nil
}
txCtx := simulation.OperationInput{
R: r,
App: app,
TxGen: appparams.MakeTestEncodingConfig().TxConfig,
Msg: msg,
MsgType: msg.Type(),
Context: ctx,
SimAccount: simAccount,
AccountKeeper: ak,
Bankkeeper: bk,
ModuleName: types.ModuleName,
CoinsSpentInMsg: bk.SpendableCoins(ctx, simAccount.Address),
}
return utils.GenAndDeliverTxWithFees(txCtx, gas, fees)
}
}
func SimulateMsgPlaceMMLimitOrder(
ak types.AccountKeeper, bk types.BankKeeper, k keeper.Keeper,
) simtypes.Operation {
return func(
r *rand.Rand, app *baseapp.BaseApp, ctx sdk.Context,
accs []simtypes.Account, chainID string,
) (simtypes.OperationMsg, []simtypes.FutureOperation, error) {
simAccount, msg, found := findMsgPlaceMMLimitOrderParams(r, accs, bk, k, ctx)
if !found {
return simtypes.NoOpMsg(
types.ModuleName, types.TypeMsgPlaceMMLimitOrder, "unable to place mm limit order"), nil, nil
}
txCtx := simulation.OperationInput{
R: r,
App: app,
TxGen: appparams.MakeTestEncodingConfig().TxConfig,
Msg: msg,
MsgType: msg.Type(),
Context: ctx,
SimAccount: simAccount,
AccountKeeper: ak,
Bankkeeper: bk,
ModuleName: types.ModuleName,
CoinsSpentInMsg: bk.SpendableCoins(ctx, simAccount.Address),
}
return utils.GenAndDeliverTxWithFees(txCtx, gas, fees)
}
}
func SimulateMsgPlaceMarketOrder(
ak types.AccountKeeper, bk types.BankKeeper, k keeper.Keeper,
) simtypes.Operation {
return func(
r *rand.Rand, app *baseapp.BaseApp, ctx sdk.Context,
accs []simtypes.Account, chainID string,
) (simtypes.OperationMsg, []simtypes.FutureOperation, error) {
simAccount, msg, found := findMsgPlaceMarketOrderParams(r, accs, bk, k, ctx)
if !found {
return simtypes.NoOpMsg(
types.ModuleName, types.TypeMsgPlaceMarketOrder, "unable to place market order"), nil, nil
}
txCtx := simulation.OperationInput{
R: r,
App: app,
TxGen: appparams.MakeTestEncodingConfig().TxConfig,
Msg: msg,
MsgType: msg.Type(),
Context: ctx,
SimAccount: simAccount,
AccountKeeper: ak,
Bankkeeper: bk,
ModuleName: types.ModuleName,
CoinsSpentInMsg: bk.SpendableCoins(ctx, simAccount.Address),
}
return utils.GenAndDeliverTxWithFees(txCtx, gas, fees)
}
}
func SimulateMsgCancelOrder(
ak types.AccountKeeper, bk types.BankKeeper, k keeper.Keeper,
) simtypes.Operation {
return func(
r *rand.Rand, app *baseapp.BaseApp, ctx sdk.Context,
accs []simtypes.Account, chainID string,
) (simtypes.OperationMsg, []simtypes.FutureOperation, error) {
simAccount, msg, found := findMsgCancelOrderParams(r, accs, k, ctx)
if !found {
return simtypes.NoOpMsg(
types.ModuleName, types.TypeMsgCancelOrder, "unable to cancel order"), nil, nil
}
txCtx := simulation.OperationInput{
R: r,
App: app,
TxGen: appparams.MakeTestEncodingConfig().TxConfig,
Msg: msg,
MsgType: msg.Type(),
Context: ctx,
SimAccount: simAccount,
AccountKeeper: ak,
Bankkeeper: bk,
ModuleName: types.ModuleName,
CoinsSpentInMsg: bk.SpendableCoins(ctx, simAccount.Address),
}
return utils.GenAndDeliverTxWithFees(txCtx, gas, fees)
}
}
func SimulateMsgCancelAllOrders(
ak types.AccountKeeper, bk types.BankKeeper, k keeper.Keeper,
) simtypes.Operation {
return func(
r *rand.Rand, app *baseapp.BaseApp, ctx sdk.Context,
accs []simtypes.Account, chainID string,
) (simtypes.OperationMsg, []simtypes.FutureOperation, error) {
simAccount, msg, found := findMsgCancelAllOrdersParams(r, accs, k, ctx)
if !found {
return simtypes.NoOpMsg(
types.ModuleName, types.TypeMsgCancelAllOrders, "unable to cancel all orders"), nil, nil
}
txCtx := simulation.OperationInput{
R: r,
App: app,
TxGen: appparams.MakeTestEncodingConfig().TxConfig,
Msg: msg,
MsgType: msg.Type(),
Context: ctx,
SimAccount: simAccount,
AccountKeeper: ak,
Bankkeeper: bk,
ModuleName: types.ModuleName,
CoinsSpentInMsg: bk.SpendableCoins(ctx, simAccount.Address),
}
return utils.GenAndDeliverTxWithFees(txCtx, gas, fees)
}
}
func SimulateMsgSwapExactAmountIn(
ak types.AccountKeeper, bk types.BankKeeper, k keeper.Keeper,
) simtypes.Operation {
return func(
r *rand.Rand, app *baseapp.BaseApp, ctx sdk.Context,
accs []simtypes.Account, chainID string,
) (simtypes.OperationMsg, []simtypes.FutureOperation, error) {
simAccount, msg, found := findMsgSwapExactAmountInParams(r, accs, bk, k, ctx)
if !found {
return simtypes.NoOpMsg(
types.ModuleName, types.TypeMsgSwapExactAmountIn, "unable to swap exact amount in"), nil, nil
}
txCtx := simulation.OperationInput{
R: r,
App: app,
TxGen: appparams.MakeTestEncodingConfig().TxConfig,
Msg: msg,
MsgType: msg.Type(),
Context: ctx,
SimAccount: simAccount,
AccountKeeper: ak,
Bankkeeper: bk,
ModuleName: types.ModuleName,
CoinsSpentInMsg: bk.SpendableCoins(ctx, simAccount.Address),
}
return utils.GenAndDeliverTxWithFees(txCtx, gas, fees)
}
}
func findMsgCreateMarketParams(r *rand.Rand, accs []simtypes.Account,
bk types.BankKeeper, k keeper.Keeper, ctx sdk.Context) (acc simtypes.Account, msg *types.MsgCreateMarket, found bool) {
var allDenoms []string
bk.IterateTotalSupply(ctx, func(coin sdk.Coin) bool {
allDenoms = append(allDenoms, coin.Denom)
return false
})
r.Shuffle(len(allDenoms), func(i, j int) {
allDenoms[i], allDenoms[j] = allDenoms[j], allDenoms[i]
})
for _, denomA := range allDenoms {
for _, denomB := range allDenoms {
if denomA != denomB {
if _, found := k.GetMarketIdByDenoms(ctx, denomA, denomB); !found {
acc, _ = simtypes.RandomAcc(r, accs)
spendable := bk.SpendableCoins(ctx, acc.Address)
if !spendable.IsAllGTE(k.GetMarketCreationFee(ctx)) {
continue
}
msg = types.NewMsgCreateMarket(acc.Address, denomA, denomB)
return acc, msg, true
}
}
}
}
return acc, msg, false
}
func findMsgPlaceLimitOrderParams(
r *rand.Rand, accs []simtypes.Account,
bk types.BankKeeper, k keeper.Keeper, ctx sdk.Context) (acc simtypes.Account, msg *types.MsgPlaceLimitOrder, found bool) {
accs = utils.ShuffleSimAccounts(r, accs)
var markets []types.Market
k.IterateAllMarkets(ctx, func(market types.Market) (stop bool) {
markets = append(markets, market)
return false
})
r.Shuffle(len(markets), func(i, j int) {
markets[i], markets[j] = markets[j], markets[i]
})
lifespan := time.Duration(1+r.Intn(8)) * time.Hour
for _, acc = range accs {
spendable := bk.SpendableCoins(ctx, acc.Address)
for _, market := range markets {
marketState := k.MustGetMarketState(ctx, market.Id)
var price sdk.Dec
if marketState.LastPrice != nil {
price = types.PriceAtTick(
types.TickAtPrice(*marketState.LastPrice) + int32(r.Intn(1000)) - 500)
} else {
price = utils.RandomDec(r, utils.ParseDec("0.1"), utils.ParseDec("10"))
price = types.PriceAtTick(types.TickAtPrice(price))
}
if r.Float64() <= 0.5 { // 50% chance to sell
if balance := spendable.AmountOf(market.BaseDenom); balance.GT(sdk.NewInt(100_000000)) {
qty := utils.RandomDec(r, sdk.NewDec(100), sdk.NewDec(100_000000)).TruncateDec()
msg = types.NewMsgPlaceLimitOrder(
acc.Address, market.Id, false, price, qty, lifespan)
return acc, msg, true
}
}
if balance := spendable.AmountOf(market.QuoteDenom); balance.GT(price.MulInt64(100_000000).TruncateInt()) {
qty := utils.RandomDec(r, sdk.NewDec(100), sdk.NewDec(100_000000)).TruncateDec()
msg = types.NewMsgPlaceLimitOrder(
acc.Address, market.Id, true, price, qty, lifespan)
return acc, msg, true
}
}
}
return acc, msg, false
}
func findMsgPlaceMMLimitOrderParams(
r *rand.Rand, accs []simtypes.Account,
bk types.BankKeeper, k keeper.Keeper, ctx sdk.Context) (acc simtypes.Account, msg *types.MsgPlaceMMLimitOrder, found bool) {
accs = utils.ShuffleSimAccounts(r, accs)
var markets []types.Market
k.IterateAllMarkets(ctx, func(market types.Market) (stop bool) {
markets = append(markets, market)
return false
})
r.Shuffle(len(markets), func(i, j int) {
markets[i], markets[j] = markets[j], markets[i]
})
lifespan := time.Duration(1+r.Intn(8)) * time.Hour
maxNumMMOrders := k.GetMaxNumMMOrders(ctx)
for _, acc = range accs {
spendable := bk.SpendableCoins(ctx, acc.Address)
for _, market := range markets {
numMMOrders, _ := k.GetNumMMOrders(ctx, acc.Address, market.Id)
if numMMOrders >= maxNumMMOrders {
continue
}
marketState := k.MustGetMarketState(ctx, market.Id)
var price sdk.Dec
if marketState.LastPrice != nil {
price = types.PriceAtTick(
types.TickAtPrice(*marketState.LastPrice) + int32(r.Intn(1000)) - 500)
} else {
price = utils.RandomDec(r, utils.ParseDec("0.1"), utils.ParseDec("10"))
price = types.PriceAtTick(types.TickAtPrice(price))
}
if r.Float64() <= 0.5 { // 50% chance to sell
if balance := spendable.AmountOf(market.BaseDenom); balance.GT(sdk.NewInt(100_000000)) {
qty := utils.RandomDec(r, sdk.NewDec(100), sdk.NewDec(100_000000)).TruncateDec()
msg = types.NewMsgPlaceMMLimitOrder(
acc.Address, market.Id, false, price, qty, lifespan)
return acc, msg, true
}
}
if balance := spendable.AmountOf(market.QuoteDenom); balance.GT(price.MulInt64(100_000000).TruncateInt()) {
qty := utils.RandomDec(r, sdk.NewDec(100), sdk.NewDec(100_000000)).TruncateDec()
msg = types.NewMsgPlaceMMLimitOrder(
acc.Address, market.Id, true, price, qty, lifespan)
return acc, msg, true
}
}
}
return acc, msg, false
}
func findMsgPlaceMarketOrderParams(
r *rand.Rand, accs []simtypes.Account,
bk types.BankKeeper, k keeper.Keeper, ctx sdk.Context) (acc simtypes.Account, msg *types.MsgPlaceMarketOrder, found bool) {
accs = utils.ShuffleSimAccounts(r, accs)
var markets []types.Market
k.IterateAllMarkets(ctx, func(market types.Market) (stop bool) {
marketState := k.MustGetMarketState(ctx, market.Id)
if marketState.LastPrice == nil { // skip markets with no last price
return false
}
markets = append(markets, market)
return false
})
r.Shuffle(len(markets), func(i, j int) {
markets[i], markets[j] = markets[j], markets[i]
})
for _, acc = range accs {
spendable := bk.SpendableCoins(ctx, acc.Address)
for _, market := range markets {
if r.Float64() <= 0.5 { // 50% chance to sell
if balance := spendable.AmountOf(market.BaseDenom); balance.GT(sdk.NewInt(1_000000)) {
qty := utils.RandomDec(r, sdk.NewDec(100), sdk.NewDec(1_000000)).TruncateDec()
msg = types.NewMsgPlaceMarketOrder(
acc.Address, market.Id, false, qty)
return acc, msg, true
}
}
marketState := k.MustGetMarketState(ctx, market.Id)
if marketState.LastPrice == nil {
continue
}
qty := utils.RandomDec(r, sdk.NewDec(100), sdk.NewDec(1_000000)).TruncateDec()
cacheCtx, _ := ctx.CacheContext()
if _, _, err := k.PlaceMarketOrder(cacheCtx, market.Id, acc.Address, true, qty); err != nil {
continue
}
msg = types.NewMsgPlaceMarketOrder(acc.Address, market.Id, true, qty)
return acc, msg, true
}
}
return acc, msg, false
}
func findMsgCancelOrderParams(
r *rand.Rand, accs []simtypes.Account, k keeper.Keeper, ctx sdk.Context) (acc simtypes.Account, msg *types.MsgCancelOrder, found bool) {
accs = utils.ShuffleSimAccounts(r, accs)
for _, acc = range accs {
var orders []types.Order
k.IterateOrdersByOrderer(ctx, acc.Address, func(order types.Order) (stop bool) {
if order.MsgHeight < ctx.BlockHeight() {
orders = append(orders, order)
}
return false
})
if len(orders) > 0 {
order := orders[r.Intn(len(orders))]
msg = types.NewMsgCancelOrder(acc.Address, order.Id)
return acc, msg, true
}
}
return acc, nil, false
}
func findMsgCancelAllOrdersParams(
r *rand.Rand, accs []simtypes.Account, k keeper.Keeper, ctx sdk.Context) (acc simtypes.Account, msg *types.MsgCancelAllOrders, found bool) {
acc, _ = simtypes.RandomAcc(r, accs)
var markets []types.Market
k.IterateAllMarkets(ctx, func(market types.Market) (stop bool) {
markets = append(markets, market)
return false
})
if len(markets) == 0 {
return acc, nil, false
}
// CancelAllOrders will succeed even if the orderer has no orders in the market.
// So we just choose random market.
market := markets[r.Intn(len(markets))]
msg = types.NewMsgCancelAllOrders(acc.Address, market.Id)
return acc, msg, true
}
func findMsgSwapExactAmountInParams(
r *rand.Rand, accs []simtypes.Account, bk types.BankKeeper, k keeper.Keeper, ctx sdk.Context) (acc simtypes.Account, msg *types.MsgSwapExactAmountIn, found bool) {
var allDenoms []string
bk.IterateTotalSupply(ctx, func(coin sdk.Coin) bool {
allDenoms = append(allDenoms, coin.Denom)
return false
})
accs = utils.ShuffleSimAccounts(r, accs)
for _, acc = range accs {
spendable := bk.SpendableCoins(ctx, acc.Address)
// We shuffle denoms every time for better randomization of candidate
// denom pair.
r.Shuffle(len(allDenoms), func(i, j int) {
allDenoms[i], allDenoms[j] = allDenoms[j], allDenoms[i]
})
for _, denomIn := range allDenoms {
if !spendable.AmountOf(denomIn).GTE(sdk.NewInt(1_000000)) {
continue
}
input := sdk.NewDecCoin(denomIn, utils.RandomInt(r, sdk.NewInt(10000), sdk.NewInt(1_000000)))
for _, denomOut := range allDenoms {
querier := keeper.Querier{Keeper: k}
resp, err := querier.BestSwapExactAmountInRoutes(sdk.WrapSDKContext(ctx), &types.QueryBestSwapExactAmountInRoutesRequest{
Input: input.String(),
OutputDenom: denomOut,
})
if err != nil {
continue
}
// If there's no error than the output amount always be positive.
msg = types.NewMsgSwapExactAmountIn(acc.Address, resp.Routes, input, resp.Output)
return acc, msg, true
}
}
}
return acc, nil, false
}