295 lines
11 KiB
Go
295 lines
11 KiB
Go
package stake
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import (
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// "errors"
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"fmt"
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"math/rand"
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"testing"
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"github.com/stretchr/testify/require"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/x/auth"
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"github.com/cosmos/cosmos-sdk/x/bank"
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"github.com/cosmos/cosmos-sdk/x/mock"
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abci "github.com/tendermint/tendermint/abci/types"
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"github.com/tendermint/tendermint/crypto"
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)
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var (
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stats = make(map[string]int)
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)
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// ModuleInvariants runs all invariants of the stake module.
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// Currently: total supply, positive power
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func ModuleInvariants(ck bank.Keeper, k Keeper) mock.Invariant {
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return func(t *testing.T, app *mock.App, log string) {
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SupplyInvariants(ck, k)(t, app, log)
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PositivePowerInvariant(k)(t, app, log)
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ValidatorSetInvariant(k)(t, app, log)
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}
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}
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// SupplyInvariants checks that the total supply reflects all held loose tokens, bonded tokens, and unbonding delegations
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func SupplyInvariants(ck bank.Keeper, k Keeper) mock.Invariant {
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return func(t *testing.T, app *mock.App, log string) {
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ctx := app.NewContext(false, abci.Header{})
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pool := k.GetPool(ctx)
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// Loose tokens should equal coin supply
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loose := sdk.ZeroInt()
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app.AccountMapper.IterateAccounts(ctx, func(acc auth.Account) bool {
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loose = loose.Add(acc.GetCoins().AmountOf("steak"))
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return false
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})
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require.True(t, sdk.NewInt(pool.LooseTokens).Equal(loose), "expected loose tokens to equal total steak held by accounts - pool.LooseTokens: %v, sum of account tokens: %v\nlog: %s",
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pool.LooseTokens, loose, log)
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stats["stake/invariant/looseTokens"] += 1
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// Bonded tokens should equal sum of tokens with bonded validators
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// Unbonded tokens should equal sum of tokens with unbonded validators
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bonded := sdk.ZeroRat()
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unbonded := sdk.ZeroRat()
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k.IterateValidators(ctx, func(_ int64, validator sdk.Validator) bool {
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switch validator.GetStatus() {
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case sdk.Bonded:
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bonded = bonded.Add(validator.GetPower())
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case sdk.Unbonding:
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// TODO
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case sdk.Unbonded:
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unbonded = unbonded.Add(validator.GetPower())
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}
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return false
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})
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require.True(t, sdk.NewRat(pool.BondedTokens).Equal(bonded), "expected bonded tokens to equal total steak held by bonded validators\nlog: %s", log)
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stats["stake/invariant/bondedTokens"] += 1
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require.True(t, sdk.NewRat(pool.UnbondedTokens).Equal(unbonded), "expected unbonded tokens to equal total steak held by unbonded validators\n log: %s", log)
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stats["stake/invariant/unbondedTokens"] += 1
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// TODO Unbonding tokens
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// TODO Inflation check on total supply
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}
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}
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// PositivePowerInvariant checks that all stored validators have > 0 power
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func PositivePowerInvariant(k Keeper) mock.Invariant {
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return func(t *testing.T, app *mock.App, log string) {
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ctx := app.NewContext(false, abci.Header{})
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k.IterateValidatorsBonded(ctx, func(_ int64, validator sdk.Validator) bool {
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require.True(t, validator.GetPower().GT(sdk.ZeroRat()), "validator with non-positive power stored")
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return false
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})
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stats["stake/invariant/positivePower"] += 1
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}
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}
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// ValidatorSetInvariant checks equivalence of Tendermint validator set and SDK validator set
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func ValidatorSetInvariant(k Keeper) mock.Invariant {
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return func(t *testing.T, app *mock.App, log string) {
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// TODO
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}
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}
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// SimulateMsgCreateValidator
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func SimulateMsgCreateValidator(m auth.AccountMapper, k Keeper) mock.TestAndRunMsg {
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return func(t *testing.T, r *rand.Rand, ctx sdk.Context, keys []crypto.PrivKey, log string) (action string, err sdk.Error) {
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denom := k.GetParams(ctx).BondDenom
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description := Description{
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Moniker: mock.RandStringOfLength(r, 10),
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}
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key := keys[r.Intn(len(keys))]
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pubkey := key.PubKey()
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address := sdk.AccAddress(pubkey.Address())
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amount := m.GetAccount(ctx, address).GetCoins().AmountOf(denom)
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if amount.GT(sdk.ZeroInt()) {
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amount = sdk.NewInt(int64(r.Intn(int(amount.Int64()))))
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}
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if amount.Equal(sdk.ZeroInt()) {
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return "nop", nil
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}
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msg := MsgCreateValidator{
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Description: description,
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ValidatorAddr: address,
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PubKey: pubkey,
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SelfDelegation: sdk.NewIntCoin(denom, amount),
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}
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require.Nil(t, msg.ValidateBasic(), "expected msg to pass ValidateBasic: %s", msg.GetSignBytes())
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result := handleMsgCreateValidator(ctx, msg, k)
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stats[fmt.Sprintf("stake/createvalidator/%v", result.IsOK())] += 1
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// require.True(t, result.IsOK(), "expected OK result but instead got %v", result)
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action = fmt.Sprintf("TestMsgCreateValidator: %s", msg.GetSignBytes())
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return action, nil
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}
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}
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// SimulateMsgEditValidator
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func SimulateMsgEditValidator(k Keeper) mock.TestAndRunMsg {
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return func(t *testing.T, r *rand.Rand, ctx sdk.Context, keys []crypto.PrivKey, log string) (action string, err sdk.Error) {
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description := Description{
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Moniker: mock.RandStringOfLength(r, 10),
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Identity: mock.RandStringOfLength(r, 10),
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Website: mock.RandStringOfLength(r, 10),
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Details: mock.RandStringOfLength(r, 10),
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}
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key := keys[r.Intn(len(keys))]
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pubkey := key.PubKey()
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address := sdk.AccAddress(pubkey.Address())
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msg := MsgEditValidator{
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Description: description,
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ValidatorAddr: address,
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}
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require.Nil(t, msg.ValidateBasic(), "expected msg to pass ValidateBasic: %s", msg.GetSignBytes())
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result := handleMsgEditValidator(ctx, msg, k)
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stats[fmt.Sprintf("stake/editvalidator/%v", result.IsOK())] += 1
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action = fmt.Sprintf("TestMsgEditValidator: %s", msg.GetSignBytes())
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return action, nil
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}
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}
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// SimulateMsgDelegate
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func SimulateMsgDelegate(m auth.AccountMapper, k Keeper) mock.TestAndRunMsg {
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return func(t *testing.T, r *rand.Rand, ctx sdk.Context, keys []crypto.PrivKey, log string) (action string, err sdk.Error) {
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denom := k.GetParams(ctx).BondDenom
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validatorKey := keys[r.Intn(len(keys))]
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validatorAddress := sdk.AccAddress(validatorKey.PubKey().Address())
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delegatorKey := keys[r.Intn(len(keys))]
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delegatorAddress := sdk.AccAddress(delegatorKey.PubKey().Address())
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amount := m.GetAccount(ctx, delegatorAddress).GetCoins().AmountOf(denom)
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if amount.GT(sdk.ZeroInt()) {
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amount = sdk.NewInt(int64(r.Intn(int(amount.Int64()))))
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}
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if amount.Equal(sdk.ZeroInt()) {
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return "nop", nil
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}
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msg := MsgDelegate{
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DelegatorAddr: delegatorAddress,
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ValidatorAddr: validatorAddress,
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Bond: sdk.NewIntCoin(denom, amount),
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}
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require.Nil(t, msg.ValidateBasic(), "expected msg to pass ValidateBasic: %s", msg.GetSignBytes())
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result := handleMsgDelegate(ctx, msg, k)
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stats[fmt.Sprintf("stake/delegate/%v", result.IsOK())] += 1
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action = fmt.Sprintf("TestMsgDelegate: %s", msg.GetSignBytes())
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return action, nil
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}
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}
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// SimulateMsgBeginUnbonding
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func SimulateMsgBeginUnbonding(m auth.AccountMapper, k Keeper) mock.TestAndRunMsg {
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return func(t *testing.T, r *rand.Rand, ctx sdk.Context, keys []crypto.PrivKey, log string) (action string, err sdk.Error) {
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msg := fmt.Sprintf("TestMsgBeginUnbonding with %s", "ok")
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return msg, nil
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}
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}
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// SimulateMsgCompleteUnbonding
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func SimulateMsgCompleteUnbonding(k Keeper) mock.TestAndRunMsg {
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return func(t *testing.T, r *rand.Rand, ctx sdk.Context, keys []crypto.PrivKey, log string) (action string, err sdk.Error) {
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msg := fmt.Sprintf("TestMsgCompleteUnbonding with %s", "ok")
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return msg, nil
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}
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}
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// SimulateMsgBeginRedelegate
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func SimulateMsgBeginRedelegate(m auth.AccountMapper, k Keeper) mock.TestAndRunMsg {
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return func(t *testing.T, r *rand.Rand, ctx sdk.Context, keys []crypto.PrivKey, log string) (action string, err sdk.Error) {
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denom := k.GetParams(ctx).BondDenom
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sourceValidatorKey := keys[r.Intn(len(keys))]
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sourceValidatorAddress := sdk.AccAddress(sourceValidatorKey.PubKey().Address())
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destValidatorKey := keys[r.Intn(len(keys))]
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destValidatorAddress := sdk.AccAddress(destValidatorKey.PubKey().Address())
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delegatorKey := keys[r.Intn(len(keys))]
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delegatorAddress := sdk.AccAddress(delegatorKey.PubKey().Address())
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// TODO
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amount := m.GetAccount(ctx, delegatorAddress).GetCoins().AmountOf(denom)
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if amount.GT(sdk.ZeroInt()) {
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amount = sdk.NewInt(int64(r.Intn(int(amount.Int64()))))
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}
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if amount.Equal(sdk.ZeroInt()) {
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return "nop", nil
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}
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msg := MsgBeginRedelegate{
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DelegatorAddr: delegatorAddress,
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ValidatorSrcAddr: sourceValidatorAddress,
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ValidatorDstAddr: destValidatorAddress,
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SharesAmount: sdk.NewRatFromInt(amount),
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}
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require.Nil(t, msg.ValidateBasic(), "expected msg to pass ValidateBasic: %s", msg.GetSignBytes())
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result := handleMsgBeginRedelegate(ctx, msg, k)
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stats[fmt.Sprintf("stake/beginredelegate/%v", result.IsOK())] += 1
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action = fmt.Sprintf("TestMsgBeginRedelegate: %s", msg.GetSignBytes())
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return action, nil
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}
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}
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// SimulateMsgCompleteRedelegate
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func SimulateMsgCompleteRedelegate(k Keeper) mock.TestAndRunMsg {
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return func(t *testing.T, r *rand.Rand, ctx sdk.Context, keys []crypto.PrivKey, log string) (action string, err sdk.Error) {
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msg := fmt.Sprintf("TestMsgCompleteRedelegate with %s", "ok")
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return msg, nil
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}
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}
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// SimulationSetup
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func SimulationSetup(mapp *mock.App, k Keeper) mock.RandSetup {
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return func(r *rand.Rand, privKeys []crypto.PrivKey) {
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ctx := mapp.NewContext(false, abci.Header{})
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InitGenesis(ctx, k, DefaultGenesisState())
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params := k.GetParams(ctx)
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denom := params.BondDenom
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loose := sdk.ZeroInt()
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mapp.AccountMapper.IterateAccounts(ctx, func(acc auth.Account) bool {
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balance := sdk.NewInt(int64(r.Intn(1000000)))
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acc.SetCoins(acc.GetCoins().Plus(sdk.Coins{sdk.NewIntCoin(denom, balance)}))
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mapp.AccountMapper.SetAccount(ctx, acc)
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loose = loose.Add(balance)
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return false
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})
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pool := k.GetPool(ctx)
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pool.LooseTokens += loose.Int64()
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k.SetPool(ctx, pool)
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}
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}
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// TestStakeWithRandomMessages
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func TestStakeWithRandomMessages(t *testing.T) {
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mapp := mock.NewApp()
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bank.RegisterWire(mapp.Cdc)
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mapper := mapp.AccountMapper
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coinKeeper := bank.NewKeeper(mapper)
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stakeKey := sdk.NewKVStoreKey("stake")
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stakeKeeper := NewKeeper(mapp.Cdc, stakeKey, coinKeeper, DefaultCodespace)
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mapp.Router().AddRoute("stake", NewHandler(stakeKeeper))
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mapp.SetEndBlocker(func(ctx sdk.Context, req abci.RequestEndBlock) abci.ResponseEndBlock {
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validatorUpdates := EndBlocker(ctx, stakeKeeper)
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return abci.ResponseEndBlock{
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ValidatorUpdates: validatorUpdates,
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}
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})
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err := mapp.CompleteSetup([]*sdk.KVStoreKey{stakeKey})
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if err != nil {
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panic(err)
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}
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mapp.SimpleRandomizedTestingFromSeed(
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t, 20, []mock.TestAndRunMsg{
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SimulateMsgCreateValidator(mapper, stakeKeeper),
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SimulateMsgEditValidator(stakeKeeper),
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SimulateMsgDelegate(mapper, stakeKeeper),
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SimulateMsgBeginUnbonding(mapper, stakeKeeper),
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SimulateMsgCompleteUnbonding(stakeKeeper),
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SimulateMsgBeginRedelegate(mapper, stakeKeeper),
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SimulateMsgCompleteRedelegate(stakeKeeper),
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}, []mock.RandSetup{
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SimulationSetup(mapp, stakeKeeper),
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}, []mock.Invariant{
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ModuleInvariants(coinKeeper, stakeKeeper),
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}, 10, 100, 500,
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)
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fmt.Printf("Stats: %v\n", stats)
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}
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