simapp.go

package simapp

import (
	"encoding/json"
	"testing"
	"time"

	bam "github.com/cosmos/cosmos-sdk/baseapp"
	"github.com/cosmos/cosmos-sdk/client"
	cryptocodec "github.com/cosmos/cosmos-sdk/crypto/codec"
	cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
	"github.com/cosmos/cosmos-sdk/simapp"
	"github.com/cosmos/cosmos-sdk/simapp/helpers"
	sdk "github.com/cosmos/cosmos-sdk/types"
	"github.com/stretchr/testify/require"
	"github.com/tendermint/spm/cosmoscmd"
	abci "github.com/tendermint/tendermint/abci/types"
	"github.com/tendermint/tendermint/libs/log"
	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
	tmtypes "github.com/tendermint/tendermint/types"
	tmdb "github.com/tendermint/tm-db"

	codectypes "github.com/cosmos/cosmos-sdk/codec/types"

	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
	stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"

	stargazeapp "github.com/public-awesome/stargaze/v10/app"
)

// New creates application instance with in-memory database and disabled logging.
func New(dir string) *stargazeapp.App {
	db := tmdb.NewMemDB()
	logger := log.NewNopLogger()

	encoding := cosmoscmd.MakeEncodingConfig(stargazeapp.ModuleBasics)

	a := stargazeapp.NewStargazeApp(logger, db, nil, true, map[int64]bool{}, dir, 0, encoding,
		simapp.EmptyAppOptions{}, stargazeapp.EmptyWasmOpts, stargazeapp.GetEnabledProposals())

	stateBytes, err := json.MarshalIndent(stargazeapp.ModuleBasics.DefaultGenesis(encoding.Marshaler), "", " ")
	if err != nil {
		panic(err)
	}
	// InitChain updates deliverState which is required when app.NewContext is called
	a.InitChain(abci.RequestInitChain{
		ConsensusParams: defaultConsensusParams,
		AppStateBytes:   stateBytes,
	})
	return a.(*stargazeapp.App)
}

var defaultConsensusParams = &abci.ConsensusParams{
	Block: &abci.BlockParams{
		MaxBytes: 200000,
		MaxGas:   2000000,
	},
	Evidence: &tmproto.EvidenceParams{
		MaxAgeNumBlocks: 302400,
		MaxAgeDuration:  504 * time.Hour, // 3 weeks is the max duration
		MaxBytes:        10000,
	},
	Validator: &tmproto.ValidatorParams{
		PubKeyTypes: []string{
			tmtypes.ABCIPubKeyTypeEd25519,
		},
	},
}

func setup(withGenesis bool, invCheckPeriod uint, dir string) (*stargazeapp.App, stargazeapp.GenesisState) {
	db := tmdb.NewMemDB()
	encoding := cosmoscmd.MakeEncodingConfig(stargazeapp.ModuleBasics)
	a := stargazeapp.NewStargazeApp(log.NewNopLogger(), db, nil, true,
		map[int64]bool{}, dir, invCheckPeriod, encoding, simapp.EmptyAppOptions{}, stargazeapp.EmptyWasmOpts, stargazeapp.GetEnabledProposals())
	if withGenesis {
		return a.(*stargazeapp.App), stargazeapp.NewDefaultGenesisState(encoding.Marshaler)
	}
	return a.(*stargazeapp.App), stargazeapp.GenesisState{}
}

// 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 SetupWithGenesisValSet(t *testing.T, dir string, valSet *tmtypes.ValidatorSet, genAccs []authtypes.GenesisAccount, balances ...banktypes.Balance) *stargazeapp.App {
	t.Helper()

	app, genesisState := setup(true, 5, dir)
	genesisState = genesisStateWithValSet(t, app, genesisState, valSet, genAccs, balances...)

	stateBytes, err := json.MarshalIndent(genesisState, "", " ")
	require.NoError(t, err)

	// init chain will set the validator set and initialize the genesis accounts
	app.InitChain(
		abci.RequestInitChain{
			Validators:      []abci.ValidatorUpdate{},
			ConsensusParams: defaultConsensusParams,
			AppStateBytes:   stateBytes,
		},
	)

	// commit genesis changes
	app.Commit()
	app.BeginBlock(abci.RequestBeginBlock{Header: tmproto.Header{
		Height:             app.LastBlockHeight() + 1,
		AppHash:            app.LastCommitID().Hash,
		ValidatorsHash:     valSet.Hash(),
		NextValidatorsHash: valSet.Hash(),
	}})

	return app
}

// SetupWithGenesisAccounts initializes a new SimApp with the provided genesis
// accounts and possible balances.
func SetupWithGenesisAccounts(t *testing.T, dir string, genAccs []authtypes.GenesisAccount, balances ...banktypes.Balance) *stargazeapp.App {
	t.Helper()

	privVal := NewPV()
	pubKey, err := privVal.GetPubKey()
	require.NoError(t, err)

	// create validator set with single validator
	validator := tmtypes.NewValidator(pubKey, 1)
	valSet := tmtypes.NewValidatorSet([]*tmtypes.Validator{validator})

	return SetupWithGenesisValSet(t, dir, valSet, genAccs, balances...)
}

func genesisStateWithValSet(t *testing.T,
	app *stargazeapp.App, genesisState stargazeapp.GenesisState,
	valSet *tmtypes.ValidatorSet, genAccs []authtypes.GenesisAccount,
	balances ...banktypes.Balance,
) stargazeapp.GenesisState {
	t.Helper()
	// set genesis accounts
	authGenesis := authtypes.NewGenesisState(authtypes.DefaultParams(), genAccs)
	genesisState[authtypes.ModuleName] = app.AppCodec().MustMarshalJSON(authGenesis)

	validators := make([]stakingtypes.Validator, 0, len(valSet.Validators))
	delegations := make([]stakingtypes.Delegation, 0, len(valSet.Validators))

	bondAmt := sdk.DefaultPowerReduction

	for _, val := range valSet.Validators {
		pk, err := cryptocodec.FromTmPubKeyInterface(val.PubKey)
		require.NoError(t, err)
		pkAny, err := codectypes.NewAnyWithValue(pk)
		require.NoError(t, err)
		validator := stakingtypes.Validator{
			OperatorAddress:   sdk.ValAddress(val.Address).String(),
			ConsensusPubkey:   pkAny,
			Jailed:            false,
			Status:            stakingtypes.Bonded,
			Tokens:            bondAmt,
			DelegatorShares:   sdk.OneDec(),
			Description:       stakingtypes.Description{},
			UnbondingHeight:   int64(0),
			UnbondingTime:     time.Unix(0, 0).UTC(),
			Commission:        stakingtypes.NewCommission(sdk.ZeroDec(), sdk.ZeroDec(), sdk.ZeroDec()),
			MinSelfDelegation: sdk.ZeroInt(),
		}
		validators = append(validators, validator)
		delegations = append(delegations, stakingtypes.NewDelegation(genAccs[0].GetAddress(), val.Address.Bytes(), sdk.OneDec()))

	}
	// set validators and delegations
	stakingGenesis := stakingtypes.NewGenesisState(stakingtypes.DefaultParams(), validators, delegations)
	genesisState[stakingtypes.ModuleName] = app.AppCodec().MustMarshalJSON(stakingGenesis)

	totalSupply := sdk.NewCoins()
	for _, b := range balances {
		// add genesis acc tokens to total supply
		totalSupply = totalSupply.Add(b.Coins...)
	}

	for range delegations {
		// add delegated tokens to total supply
		totalSupply = totalSupply.Add(sdk.NewCoin(sdk.DefaultBondDenom, bondAmt))
	}

	// add bonded amount to bonded pool module account
	balances = append(balances, banktypes.Balance{
		Address: authtypes.NewModuleAddress(stakingtypes.BondedPoolName).String(),
		Coins:   sdk.Coins{sdk.NewCoin(sdk.DefaultBondDenom, bondAmt)},
	})

	// update total supply
	bankGenesis := banktypes.NewGenesisState(banktypes.DefaultGenesisState().Params, balances, totalSupply, []banktypes.Metadata{})
	genesisState[banktypes.ModuleName] = app.AppCodec().MustMarshalJSON(bankGenesis)

	return genesisState
}

// SignCheckDeliver checks a generated signed transaction and simulates a
// block commitment with the given transaction. A test assertion is made using
// the parameter 'expPass' against the result. A corresponding result is
// returned.
func SignCheckDeliver(
	t *testing.T, txCfg client.TxConfig, app *bam.BaseApp, header tmproto.Header, msgs []sdk.Msg,
	chainID string, accNums, accSeqs []uint64, simulate bool, expSimPass, expPass bool, priv ...cryptotypes.PrivKey,
) (sdk.GasInfo, *sdk.Result, error) {
	t.Helper()
	tx, err := helpers.GenTx(
		txCfg,
		msgs,
		sdk.Coins{sdk.NewInt64Coin(sdk.DefaultBondDenom, 0)},
		helpers.DefaultGenTxGas,
		chainID,
		accNums,
		accSeqs,
		priv...,
	)
	require.NoError(t, err)
	txBytes, err := txCfg.TxEncoder()(tx)
	require.Nil(t, err)
	if simulate {
		// Must simulate now as CheckTx doesn't run Msgs anymore
		_, res, err := app.Simulate(txBytes)

		if expSimPass {
			require.NoError(t, err)
			require.NotNil(t, res)
		} else {
			require.Error(t, err)
			require.Nil(t, res)
		}
	}
	// Simulate a sending a transaction and committing a block
	app.BeginBlock(abci.RequestBeginBlock{Header: header})
	gInfo, res, err := app.Deliver(txCfg.TxEncoder(), tx)

	if expPass {
		require.NoError(t, err)
		require.NotNil(t, res)
	} else {
		require.Error(t, err)
		require.Nil(t, res)
	}

	app.EndBlock(abci.RequestEndBlock{})
	app.Commit()
	return gInfo, res, err
}