cosmos-sdk/cmd/gaia/app/sim_test.go

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package app
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import (
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"encoding/json"
"math/rand"
"os"
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"strconv"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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dbm "github.com/tendermint/tendermint/libs/db"
"github.com/tendermint/tendermint/libs/log"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/x/mock/simulation"
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stake "github.com/cosmos/cosmos-sdk/x/stake"
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stakesim "github.com/cosmos/cosmos-sdk/x/stake/simulation"
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)
const (
NumKeys = 10
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NumBlocks = 100
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BlockSize = 100
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simulationEnvEnable = "GAIA_SIMULATION_ENABLED"
simulationEnvSeed = "GAIA_SIMULATION_SEED"
simulationEnvKeys = "GAIA_SIMULATION_KEYS"
simulationEnvBlocks = "GAIA_SIMULATION_BLOCKS"
simulationEnvBlockSize = "GAIA_SIMULATION_BLOCK_SIZE"
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)
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func appStateFn(r *rand.Rand, accs []sdk.AccAddress) json.RawMessage {
var genesisAccounts []GenesisAccount
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// Randomly generate some genesis accounts
for _, addr := range accs {
coins := sdk.Coins{sdk.Coin{"steak", sdk.NewInt(100)}}
genesisAccounts = append(genesisAccounts, GenesisAccount{
Address: addr,
Coins: coins,
})
}
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// Default genesis state
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stakeGenesis := stake.DefaultGenesisState()
stakeGenesis.Pool.LooseTokens = sdk.NewRat(1000)
genesis := GenesisState{
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Accounts: genesisAccounts,
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StakeData: stakeGenesis,
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}
// Marshal genesis
appState, err := MakeCodec().MarshalJSON(genesis)
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if err != nil {
panic(err)
}
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return appState
}
func TestFullGaiaSimulation(t *testing.T) {
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if os.Getenv(simulationEnvEnable) == "" {
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t.Skip("Skipping Gaia simulation")
}
// Setup Gaia application
logger := log.NewNopLogger()
db := dbm.NewMemDB()
app := NewGaiaApp(logger, db, nil)
require.Equal(t, "GaiaApp", app.Name())
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var seed int64
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var err error
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envSeed := os.Getenv(simulationEnvSeed)
if envSeed != "" {
seed, err = strconv.ParseInt(envSeed, 10, 64)
require.Nil(t, err)
} else {
seed = time.Now().UnixNano()
}
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// Run randomized simulation
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simulation.SimulateFromSeed(
t, app.BaseApp, appStateFn, seed,
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[]simulation.TestAndRunTx{
stakesim.SimulateMsgCreateValidator(app.accountMapper, app.stakeKeeper),
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stakesim.SimulateMsgEditValidator(app.stakeKeeper),
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stakesim.SimulateMsgDelegate(app.accountMapper, app.stakeKeeper),
stakesim.SimulateMsgBeginUnbonding(app.accountMapper, app.stakeKeeper),
stakesim.SimulateMsgCompleteUnbonding(app.stakeKeeper),
stakesim.SimulateMsgBeginRedelegate(app.accountMapper, app.stakeKeeper),
stakesim.SimulateMsgCompleteRedelegate(app.stakeKeeper),
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},
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[]simulation.RandSetup{},
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[]simulation.Invariant{
stakesim.AllInvariants(app.coinKeeper, app.stakeKeeper, app.accountMapper),
},
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NumKeys,
NumBlocks,
BlockSize,
)
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}