package keeper_test import ( "fmt" "reflect" "testing" "github.com/cosmos/cosmos-sdk/crypto/keys/ed25519" "github.com/cosmos/cosmos-sdk/simapp" sdk "github.com/cosmos/cosmos-sdk/types" authtypes "github.com/cosmos/cosmos-sdk/x/auth/types" vestingtypes "github.com/cosmos/cosmos-sdk/x/auth/vesting/types" bankkeeper "github.com/cosmos/cosmos-sdk/x/bank/keeper" stakingkeeper "github.com/cosmos/cosmos-sdk/x/staking/keeper" stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types" "github.com/stretchr/testify/suite" abci "github.com/tendermint/tendermint/abci/types" tmproto "github.com/tendermint/tendermint/proto/tendermint/types" tmtime "github.com/tendermint/tendermint/types/time" "github.com/kava-labs/kava/app" "github.com/kava-labs/kava/x/liquid/keeper" ) // Test suite used for all keeper tests type KeeperTestSuite struct { suite.Suite App app.TestApp Ctx sdk.Context Keeper keeper.Keeper BankKeeper bankkeeper.Keeper StakingKeeper stakingkeeper.Keeper } // The default state used by each test func (suite *KeeperTestSuite) SetupTest() { tApp := app.NewTestApp() ctx := tApp.NewContext(true, tmproto.Header{Height: 1, Time: tmtime.Now()}) tApp.InitializeFromGenesisStates() suite.App = tApp suite.Ctx = ctx suite.Keeper = tApp.GetLiquidKeeper() suite.StakingKeeper = tApp.GetStakingKeeper() suite.BankKeeper = tApp.GetBankKeeper() } // CreateAccount creates a new account (with a fixed address) from the provided balance. func (suite *KeeperTestSuite) CreateAccount(initialBalance sdk.Coins) authtypes.AccountI { _, addrs := app.GeneratePrivKeyAddressPairs(1) return suite.CreateAccountWithAddress(addrs[0], initialBalance) } // CreateAccount creates a new account from the provided balance and address func (suite *KeeperTestSuite) CreateAccountWithAddress(addr sdk.AccAddress, initialBalance sdk.Coins) authtypes.AccountI { ak := suite.App.GetAccountKeeper() acc := ak.NewAccountWithAddress(suite.Ctx, addr) ak.SetAccount(suite.Ctx, acc) err := simapp.FundAccount(suite.BankKeeper, suite.Ctx, acc.GetAddress(), initialBalance) suite.Require().NoError(err) return acc } // CreateVestingAccount creates a new vesting account. `vestingBalance` should be a fraction of `initialBalance`. func (suite *KeeperTestSuite) CreateVestingAccountWithAddress(addr sdk.AccAddress, initialBalance sdk.Coins, vestingBalance sdk.Coins) authtypes.AccountI { if vestingBalance.IsAnyGT(initialBalance) { panic("vesting balance must be less than initial balance") } acc := suite.CreateAccountWithAddress(addr, initialBalance) bacc := acc.(*authtypes.BaseAccount) periods := vestingtypes.Periods{ vestingtypes.Period{ Length: 31556952, Amount: vestingBalance, }, } vacc := vestingtypes.NewPeriodicVestingAccount(bacc, vestingBalance, suite.Ctx.BlockTime().Unix(), periods) suite.App.GetAccountKeeper().SetAccount(suite.Ctx, vacc) return vacc } // AddCoinsToModule adds coins to the a module account, creating it if it doesn't exist. func (suite *KeeperTestSuite) AddCoinsToModule(module string, amount sdk.Coins) { err := simapp.FundModuleAccount(suite.BankKeeper, suite.Ctx, module, amount) suite.Require().NoError(err) } // AccountBalanceEqual checks if an account has the specified coins. func (suite *KeeperTestSuite) AccountBalanceEqual(addr sdk.AccAddress, coins sdk.Coins) { balance := suite.BankKeeper.GetAllBalances(suite.Ctx, addr) suite.Equalf(coins, balance, "expected account balance to equal coins %s, but got %s", coins, balance) } func (suite *KeeperTestSuite) deliverMsgCreateValidator(ctx sdk.Context, address sdk.ValAddress, selfDelegation sdk.Coin) error { msg, err := stakingtypes.NewMsgCreateValidator( address, ed25519.GenPrivKey().PubKey(), selfDelegation, stakingtypes.Description{}, stakingtypes.NewCommissionRates(sdk.ZeroDec(), sdk.ZeroDec(), sdk.ZeroDec()), sdk.NewInt(1e6), ) if err != nil { return err } msgServer := stakingkeeper.NewMsgServerImpl(suite.StakingKeeper) _, err = msgServer.CreateValidator(sdk.WrapSDKContext(suite.Ctx), msg) return err } // NewBondCoin creates a Coin with the current staking denom. func (suite *KeeperTestSuite) NewBondCoin(amount sdk.Int) sdk.Coin { stakingDenom := suite.StakingKeeper.BondDenom(suite.Ctx) return sdk.NewCoin(stakingDenom, amount) } // NewBondCoins creates Coins with the current staking denom. func (suite *KeeperTestSuite) NewBondCoins(amount sdk.Int) sdk.Coins { return sdk.NewCoins(suite.NewBondCoin(amount)) } // CreateNewUnbondedValidator creates a new validator in the staking module. // New validators are unbonded until the end blocker is run. func (suite *KeeperTestSuite) CreateNewUnbondedValidator(addr sdk.ValAddress, selfDelegation sdk.Int) stakingtypes.Validator { // Create a validator err := suite.deliverMsgCreateValidator(suite.Ctx, addr, suite.NewBondCoin(selfDelegation)) suite.Require().NoError(err) // New validators are created in an unbonded state. Note if the end blocker is run later this validator could become bonded. validator, found := suite.StakingKeeper.GetValidator(suite.Ctx, addr) suite.Require().True(found) return validator } // SlashValidator burns tokens staked in a validator. new_tokens = old_tokens * (1-slashFraction) func (suite *KeeperTestSuite) SlashValidator(addr sdk.ValAddress, slashFraction sdk.Dec) { validator, found := suite.StakingKeeper.GetValidator(suite.Ctx, addr) suite.Require().True(found) consAddr, err := validator.GetConsAddr() suite.Require().NoError(err) // Assume infraction was at current height. Note unbonding delegations and redelegations are only slashed if created after // the infraction height so none will be slashed. infractionHeight := suite.Ctx.BlockHeight() power := suite.StakingKeeper.TokensToConsensusPower(suite.Ctx, validator.GetTokens()) suite.StakingKeeper.Slash(suite.Ctx, consAddr, infractionHeight, power, slashFraction) } // CreateDelegation delegates tokens to a validator. func (suite *KeeperTestSuite) CreateDelegation(valAddr sdk.ValAddress, delegator sdk.AccAddress, amount sdk.Int) sdk.Dec { stakingDenom := suite.StakingKeeper.BondDenom(suite.Ctx) msg := stakingtypes.NewMsgDelegate( delegator, valAddr, sdk.NewCoin(stakingDenom, amount), ) msgServer := stakingkeeper.NewMsgServerImpl(suite.StakingKeeper) _, err := msgServer.Delegate(sdk.WrapSDKContext(suite.Ctx), msg) suite.Require().NoError(err) del, found := suite.StakingKeeper.GetDelegation(suite.Ctx, delegator, valAddr) suite.Require().True(found) return del.Shares } // CreateRedelegation undelegates tokens from one validator and delegates to another. func (suite *KeeperTestSuite) CreateRedelegation(delegator sdk.AccAddress, fromValidator, toValidator sdk.ValAddress, amount sdk.Int) { stakingDenom := suite.StakingKeeper.BondDenom(suite.Ctx) msg := stakingtypes.NewMsgBeginRedelegate( delegator, fromValidator, toValidator, sdk.NewCoin(stakingDenom, amount), ) msgServer := stakingkeeper.NewMsgServerImpl(suite.StakingKeeper) _, err := msgServer.BeginRedelegate(sdk.WrapSDKContext(suite.Ctx), msg) suite.Require().NoError(err) } // DelegationSharesEqual checks if a delegation has the specified shares. // It expects delegations with zero shares to not be stored in state. func (suite *KeeperTestSuite) DelegationSharesEqual(valAddr sdk.ValAddress, delegator sdk.AccAddress, shares sdk.Dec) bool { del, found := suite.StakingKeeper.GetDelegation(suite.Ctx, delegator, valAddr) if shares.IsZero() { return suite.Falsef(found, "expected delegator to not be found, got %s shares", del.Shares) } else { res := suite.True(found, "expected delegator to be found") return res && suite.Truef(shares.Equal(del.Shares), "expected %s delegator shares but got %s", shares, del.Shares) } } // EventsContains asserts that the expected event is in the provided events func (suite *KeeperTestSuite) EventsContains(events sdk.Events, expectedEvent sdk.Event) { foundMatch := false for _, event := range events { if event.Type == expectedEvent.Type { if reflect.DeepEqual(attrsToMap(expectedEvent.Attributes), attrsToMap(event.Attributes)) { foundMatch = true } } } suite.True(foundMatch, fmt.Sprintf("event of type %s not found or did not match", expectedEvent.Type)) } // EventsDoNotContainType asserts that the provided events do contain an event of a certain type. func (suite *KeeperTestSuite) EventsDoNotContainType(events sdk.Events, eventType string) { for _, event := range events { suite.Falsef(event.Type == eventType, "found unexpected event %s", eventType) } } func attrsToMap(attrs []abci.EventAttribute) []sdk.Attribute { out := []sdk.Attribute{} for _, attr := range attrs { out = append(out, sdk.NewAttribute(string(attr.Key), string(attr.Value))) } return out } func TestKeeperTestSuite(t *testing.T) { suite.Run(t, new(KeeperTestSuite)) }