prysm-pulse/beacon-chain/state/v1/field_trie_test.go
2021-07-21 21:34:07 +00:00

78 lines
2.8 KiB
Go

package v1_test
import (
"testing"
types "github.com/prysmaticlabs/eth2-types"
v1 "github.com/prysmaticlabs/prysm/beacon-chain/state/v1"
ethpb "github.com/prysmaticlabs/prysm/proto/prysm/v1alpha1"
"github.com/prysmaticlabs/prysm/shared/params"
"github.com/prysmaticlabs/prysm/shared/testutil"
"github.com/prysmaticlabs/prysm/shared/testutil/assert"
"github.com/prysmaticlabs/prysm/shared/testutil/require"
)
func TestFieldTrie_NewTrie(t *testing.T) {
newState, _ := testutil.DeterministicGenesisState(t, 40)
// 5 represents the enum value of state roots
trie, err := v1.NewFieldTrie(5, newState.StateRoots(), uint64(params.BeaconConfig().SlotsPerHistoricalRoot))
require.NoError(t, err)
root, err := v1.RootsArrayHashTreeRoot(newState.StateRoots(), uint64(params.BeaconConfig().SlotsPerHistoricalRoot), "StateRoots")
require.NoError(t, err)
newRoot, err := trie.TrieRoot()
require.NoError(t, err)
assert.Equal(t, root, newRoot)
}
func TestFieldTrie_RecomputeTrie(t *testing.T) {
newState, _ := testutil.DeterministicGenesisState(t, 32)
// 10 represents the enum value of validators
trie, err := v1.NewFieldTrie(11, newState.Validators(), params.BeaconConfig().ValidatorRegistryLimit)
require.NoError(t, err)
changedIdx := []uint64{2, 29}
val1, err := newState.ValidatorAtIndex(10)
require.NoError(t, err)
val2, err := newState.ValidatorAtIndex(11)
require.NoError(t, err)
val1.Slashed = true
val1.ExitEpoch = 20
val2.Slashed = true
val2.ExitEpoch = 40
changedVals := []*ethpb.Validator{val1, val2}
require.NoError(t, newState.UpdateValidatorAtIndex(types.ValidatorIndex(changedIdx[0]), changedVals[0]))
require.NoError(t, newState.UpdateValidatorAtIndex(types.ValidatorIndex(changedIdx[1]), changedVals[1]))
expectedRoot, err := v1.ValidatorRegistryRoot(newState.Validators())
require.NoError(t, err)
root, err := trie.RecomputeTrie(changedIdx, newState.Validators())
require.NoError(t, err)
assert.Equal(t, expectedRoot, root)
}
func TestFieldTrie_CopyTrieImmutable(t *testing.T) {
newState, _ := testutil.DeterministicGenesisState(t, 32)
// 12 represents the enum value of randao mixes.
trie, err := v1.NewFieldTrie(13, newState.RandaoMixes(), uint64(params.BeaconConfig().EpochsPerHistoricalVector))
require.NoError(t, err)
newTrie := trie.CopyTrie()
changedIdx := []uint64{2, 29}
changedVals := [][32]byte{{'A', 'B'}, {'C', 'D'}}
require.NoError(t, newState.UpdateRandaoMixesAtIndex(changedIdx[0], changedVals[0][:]))
require.NoError(t, newState.UpdateRandaoMixesAtIndex(changedIdx[1], changedVals[1][:]))
root, err := trie.RecomputeTrie(changedIdx, newState.RandaoMixes())
require.NoError(t, err)
newRoot, err := newTrie.TrieRoot()
require.NoError(t, err)
if root == newRoot {
t.Errorf("Wanted roots to be different, but they are the same: %#x", root)
}
}