172 lines
6.2 KiB
Go
172 lines
6.2 KiB
Go
package slashing
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import (
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"testing"
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"github.com/stretchr/testify/require"
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abci "github.com/tendermint/tendermint/abci/types"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/x/stake"
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)
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// Test that a validator is slashed correctly
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// when we discover evidence of equivocation
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func TestHandleDoubleSign(t *testing.T) {
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// initial setup
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ctx, ck, sk, keeper := createTestInput(t)
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addr, val, amt := addrs[0], pks[0], sdk.NewInt(100)
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got := stake.NewHandler(sk)(ctx, newTestMsgCreateValidator(addr, val, amt))
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require.True(t, got.IsOK())
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stake.EndBlocker(ctx, sk)
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require.Equal(t, ck.GetCoins(ctx, addr), sdk.Coins{{sk.GetParams(ctx).BondDenom, initCoins.Sub(amt)}})
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require.True(t, sdk.NewRatFromInt(amt).Equal(sk.Validator(ctx, addr).GetPower()))
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// double sign less than max age
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keeper.handleDoubleSign(ctx, 0, 0, val)
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require.Equal(t, sdk.NewRatFromInt(amt).Mul(sdk.NewRat(19).Quo(sdk.NewRat(20))), sk.Validator(ctx, addr).GetPower())
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ctx = ctx.WithBlockHeader(abci.Header{Time: 300})
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// double sign past max age
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keeper.handleDoubleSign(ctx, 0, 0, val)
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require.Equal(t, sdk.NewRatFromInt(amt).Mul(sdk.NewRat(19).Quo(sdk.NewRat(20))), sk.Validator(ctx, addr).GetPower())
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}
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// Test a validator through uptime, downtime, revocation,
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// unrevocation, starting height reset, and revocation again
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func TestHandleAbsentValidator(t *testing.T) {
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// initial setup
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ctx, ck, sk, keeper := createTestInput(t)
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addr, val, amt := addrs[0], pks[0], sdk.NewInt(100)
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sh := stake.NewHandler(sk)
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slh := NewHandler(keeper)
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got := sh(ctx, newTestMsgCreateValidator(addr, val, amt))
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require.True(t, got.IsOK())
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stake.EndBlocker(ctx, sk)
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require.Equal(t, ck.GetCoins(ctx, addr), sdk.Coins{{sk.GetParams(ctx).BondDenom, initCoins.Sub(amt)}})
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require.True(t, sdk.NewRatFromInt(amt).Equal(sk.Validator(ctx, addr).GetPower()))
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info, found := keeper.getValidatorSigningInfo(ctx, val.Address())
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require.False(t, found)
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require.Equal(t, int64(0), info.StartHeight)
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require.Equal(t, int64(0), info.IndexOffset)
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require.Equal(t, int64(0), info.SignedBlocksCounter)
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require.Equal(t, int64(0), info.JailedUntil)
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height := int64(0)
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// 1000 first blocks OK
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for ; height < 1000; height++ {
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ctx = ctx.WithBlockHeight(height)
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keeper.handleValidatorSignature(ctx, val, true)
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}
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info, found = keeper.getValidatorSigningInfo(ctx, val.Address())
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require.True(t, found)
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require.Equal(t, int64(0), info.StartHeight)
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require.Equal(t, SignedBlocksWindow, info.SignedBlocksCounter)
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// 50 blocks missed
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for ; height < 1050; height++ {
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ctx = ctx.WithBlockHeight(height)
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keeper.handleValidatorSignature(ctx, val, false)
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}
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info, found = keeper.getValidatorSigningInfo(ctx, val.Address())
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require.True(t, found)
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require.Equal(t, int64(0), info.StartHeight)
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require.Equal(t, SignedBlocksWindow-50, info.SignedBlocksCounter)
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// validator should be bonded still
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validator, _ := sk.GetValidatorByPubKey(ctx, val)
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require.Equal(t, sdk.Bonded, validator.GetStatus())
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pool := sk.GetPool(ctx)
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require.Equal(t, int64(100), pool.BondedTokens)
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// 51st block missed
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ctx = ctx.WithBlockHeight(height)
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keeper.handleValidatorSignature(ctx, val, false)
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info, found = keeper.getValidatorSigningInfo(ctx, val.Address())
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require.True(t, found)
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require.Equal(t, int64(0), info.StartHeight)
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require.Equal(t, SignedBlocksWindow-51, info.SignedBlocksCounter)
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// validator should have been revoked
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validator, _ = sk.GetValidatorByPubKey(ctx, val)
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require.Equal(t, sdk.Unbonded, validator.GetStatus())
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// unrevocation should fail prior to jail expiration
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got = slh(ctx, NewMsgUnrevoke(addr))
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require.False(t, got.IsOK())
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// unrevocation should succeed after jail expiration
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ctx = ctx.WithBlockHeader(abci.Header{Time: int64(86400 * 2)})
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got = slh(ctx, NewMsgUnrevoke(addr))
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require.True(t, got.IsOK())
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// validator should be rebonded now
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validator, _ = sk.GetValidatorByPubKey(ctx, val)
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require.Equal(t, sdk.Bonded, validator.GetStatus())
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// validator should have been slashed
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pool = sk.GetPool(ctx)
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require.Equal(t, int64(99), pool.BondedTokens)
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// validator start height should have been changed
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info, found = keeper.getValidatorSigningInfo(ctx, val.Address())
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require.True(t, found)
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require.Equal(t, height, info.StartHeight)
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require.Equal(t, SignedBlocksWindow-51, info.SignedBlocksCounter)
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// validator should not be immediately revoked again
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height++
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ctx = ctx.WithBlockHeight(height)
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keeper.handleValidatorSignature(ctx, val, false)
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validator, _ = sk.GetValidatorByPubKey(ctx, val)
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require.Equal(t, sdk.Bonded, validator.GetStatus())
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// validator should be revoked again after 100 unsigned blocks
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nextHeight := height + 100
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for ; height <= nextHeight; height++ {
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ctx = ctx.WithBlockHeight(height)
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keeper.handleValidatorSignature(ctx, val, false)
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}
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validator, _ = sk.GetValidatorByPubKey(ctx, val)
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require.Equal(t, sdk.Unbonded, validator.GetStatus())
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}
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// Test a new validator entering the validator set
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// Ensure that SigningInfo.StartHeight is set correctly
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// and that they are not immediately revoked
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func TestHandleNewValidator(t *testing.T) {
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// initial setup
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ctx, ck, sk, keeper := createTestInput(t)
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addr, val, amt := addrs[0], pks[0], int64(100)
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sh := stake.NewHandler(sk)
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got := sh(ctx, newTestMsgCreateValidator(addr, val, sdk.NewInt(amt)))
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require.True(t, got.IsOK())
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stake.EndBlocker(ctx, sk)
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require.Equal(t, ck.GetCoins(ctx, addr), sdk.Coins{{sk.GetParams(ctx).BondDenom, initCoins.SubRaw(amt)}})
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require.Equal(t, sdk.NewRat(amt), sk.Validator(ctx, addr).GetPower())
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// 1000 first blocks not a validator
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ctx = ctx.WithBlockHeight(1001)
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// Now a validator, for two blocks
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keeper.handleValidatorSignature(ctx, val, true)
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ctx = ctx.WithBlockHeight(1002)
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keeper.handleValidatorSignature(ctx, val, false)
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info, found := keeper.getValidatorSigningInfo(ctx, val.Address())
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require.True(t, found)
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require.Equal(t, int64(1001), info.StartHeight)
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require.Equal(t, int64(2), info.IndexOffset)
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require.Equal(t, int64(1), info.SignedBlocksCounter)
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require.Equal(t, int64(0), info.JailedUntil)
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// validator should be bonded still, should not have been revoked or slashed
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validator, _ := sk.GetValidatorByPubKey(ctx, val)
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require.Equal(t, sdk.Bonded, validator.GetStatus())
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pool := sk.GetPool(ctx)
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require.Equal(t, int64(100), pool.BondedTokens)
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}
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