134 lines
4.7 KiB
Go
134 lines
4.7 KiB
Go
package teststaking
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import (
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/x/staking"
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"github.com/cosmos/cosmos-sdk/x/staking/keeper"
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stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
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)
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// Helper is a structure which wraps the staking handler
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// and provides methods useful in tests
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type Helper struct {
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t *testing.T
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h sdk.Handler
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k keeper.Keeper
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Ctx sdk.Context
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Commission stakingtypes.CommissionRates
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// Coin Denomination
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Denom string
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}
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// NewHelper creates staking Handler wrapper for tests
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func NewHelper(t *testing.T, ctx sdk.Context, k keeper.Keeper) *Helper {
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return &Helper{t, staking.NewHandler(k), k, ctx, ZeroCommission(), sdk.DefaultBondDenom}
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}
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// CreateValidator calls handler to create a new staking validator
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func (sh *Helper) CreateValidator(addr sdk.ValAddress, pk cryptotypes.PubKey, stakeAmount sdk.Int, ok bool) {
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coin := sdk.NewCoin(sh.Denom, stakeAmount)
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sh.createValidator(addr, pk, coin, ok)
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}
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// CreateValidatorWithValPower calls handler to create a new staking validator with zero
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// commission
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func (sh *Helper) CreateValidatorWithValPower(addr sdk.ValAddress, pk cryptotypes.PubKey, valPower int64, ok bool) sdk.Int {
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amount := sdk.TokensFromConsensusPower(valPower)
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coin := sdk.NewCoin(sh.Denom, amount)
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sh.createValidator(addr, pk, coin, ok)
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return amount
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}
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// CreateValidatorMsg returns a message used to create validator in this service.
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func (sh *Helper) CreateValidatorMsg(addr sdk.ValAddress, pk cryptotypes.PubKey, stakeAmount sdk.Int) *stakingtypes.MsgCreateValidator {
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coin := sdk.NewCoin(sh.Denom, stakeAmount)
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msg, err := stakingtypes.NewMsgCreateValidator(addr, pk, coin, stakingtypes.Description{}, sh.Commission, sdk.OneInt())
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require.NoError(sh.t, err)
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return msg
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}
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func (sh *Helper) createValidator(addr sdk.ValAddress, pk cryptotypes.PubKey, coin sdk.Coin, ok bool) {
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msg, err := stakingtypes.NewMsgCreateValidator(addr, pk, coin, stakingtypes.Description{}, sh.Commission, sdk.OneInt())
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require.NoError(sh.t, err)
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sh.Handle(msg, ok)
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}
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// Delegate calls handler to delegate stake for a validator
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func (sh *Helper) Delegate(delegator sdk.AccAddress, val sdk.ValAddress, amount sdk.Int) {
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coin := sdk.NewCoin(sh.Denom, amount)
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msg := stakingtypes.NewMsgDelegate(delegator, val, coin)
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sh.Handle(msg, true)
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}
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// DelegateWithPower calls handler to delegate stake for a validator
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func (sh *Helper) DelegateWithPower(delegator sdk.AccAddress, val sdk.ValAddress, power int64) {
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coin := sdk.NewCoin(sh.Denom, sdk.TokensFromConsensusPower(power))
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msg := stakingtypes.NewMsgDelegate(delegator, val, coin)
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sh.Handle(msg, true)
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}
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// Undelegate calls handler to unbound some stake from a validator.
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func (sh *Helper) Undelegate(delegator sdk.AccAddress, val sdk.ValAddress, amount sdk.Int, ok bool) *sdk.Result {
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unbondAmt := sdk.NewCoin(sh.Denom, amount)
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msg := stakingtypes.NewMsgUndelegate(delegator, val, unbondAmt)
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return sh.Handle(msg, ok)
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}
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// Handle calls staking handler on a given message
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func (sh *Helper) Handle(msg sdk.Msg, ok bool) *sdk.Result {
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res, err := sh.h(sh.Ctx, msg)
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if ok {
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require.NoError(sh.t, err)
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require.NotNil(sh.t, res)
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} else {
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require.Error(sh.t, err)
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require.Nil(sh.t, res)
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}
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return res
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}
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// CheckValidator asserts that a validor exists and has a given status (if status!="")
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// and if has a right jailed flag.
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func (sh *Helper) CheckValidator(addr sdk.ValAddress, status stakingtypes.BondStatus, jailed bool) stakingtypes.Validator {
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v, ok := sh.k.GetValidator(sh.Ctx, addr)
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require.True(sh.t, ok)
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require.Equal(sh.t, jailed, v.Jailed, "wrong Jalied status")
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if status >= 0 {
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require.Equal(sh.t, status, v.Status)
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}
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return v
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}
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// CheckDelegator asserts that a delegator exists
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func (sh *Helper) CheckDelegator(delegator sdk.AccAddress, val sdk.ValAddress, found bool) {
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_, ok := sh.k.GetDelegation(sh.Ctx, delegator, val)
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require.Equal(sh.t, ok, found)
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}
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// TurnBlock calls EndBlocker and updates the block time
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func (sh *Helper) TurnBlock(newTime time.Time) sdk.Context {
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sh.Ctx = sh.Ctx.WithBlockTime(newTime)
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staking.EndBlocker(sh.Ctx, sh.k)
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return sh.Ctx
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}
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// TurnBlockTimeDiff calls EndBlocker and updates the block time by adding the
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// duration to the current block time
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func (sh *Helper) TurnBlockTimeDiff(diff time.Duration) sdk.Context {
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sh.Ctx = sh.Ctx.WithBlockTime(sh.Ctx.BlockHeader().Time.Add(diff))
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staking.EndBlocker(sh.Ctx, sh.k)
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return sh.Ctx
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}
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// ZeroCommission constructs a commission rates with all zeros.
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func ZeroCommission() stakingtypes.CommissionRates {
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return stakingtypes.NewCommissionRates(sdk.ZeroDec(), sdk.ZeroDec(), sdk.ZeroDec())
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}
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