mirror of
https://github.com/OffchainLabs/prysm.git
synced 2026-01-09 13:28:01 -05:00
103 lines
3.4 KiB
Go
103 lines
3.4 KiB
Go
package stateV0
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import (
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"strconv"
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"testing"
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types "github.com/prysmaticlabs/eth2-types"
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ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
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pb "github.com/prysmaticlabs/prysm/proto/beacon/p2p/v1"
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"github.com/prysmaticlabs/prysm/shared/params"
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"github.com/prysmaticlabs/prysm/shared/testutil/assert"
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"github.com/prysmaticlabs/prysm/shared/testutil/require"
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)
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func TestFieldTrie_NewTrie(t *testing.T) {
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newState, err := state(40)
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require.NoError(t, err)
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// 5 represents the enum value of state roots
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trie, err := NewFieldTrie(5, newState.StateRoots(), uint64(params.BeaconConfig().SlotsPerHistoricalRoot))
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require.NoError(t, err)
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root, err := nocachedHasher.arraysRoot(newState.StateRoots(), uint64(params.BeaconConfig().SlotsPerHistoricalRoot), "StateRoots")
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require.NoError(t, err)
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newRoot, err := trie.TrieRoot()
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require.NoError(t, err)
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assert.Equal(t, root, newRoot)
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}
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func TestFieldTrie_RecomputeTrie(t *testing.T) {
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newState, err := state(32)
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require.NoError(t, err)
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// 10 represents the enum value of validators
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trie, err := NewFieldTrie(11, newState.Validators(), params.BeaconConfig().ValidatorRegistryLimit)
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require.NoError(t, err)
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changedIdx := []uint64{2, 29}
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val1, err := newState.ValidatorAtIndex(10)
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require.NoError(t, err)
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val2, err := newState.ValidatorAtIndex(11)
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require.NoError(t, err)
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val1.Slashed = true
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val1.ExitEpoch = 20
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val2.Slashed = true
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val2.ExitEpoch = 40
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changedVals := []*ethpb.Validator{val1, val2}
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require.NoError(t, newState.UpdateValidatorAtIndex(types.ValidatorIndex(changedIdx[0]), changedVals[0]))
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require.NoError(t, newState.UpdateValidatorAtIndex(types.ValidatorIndex(changedIdx[1]), changedVals[1]))
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expectedRoot, err := ValidatorRegistryRoot(newState.Validators())
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require.NoError(t, err)
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root, err := trie.RecomputeTrie(changedIdx, newState.Validators())
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require.NoError(t, err)
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assert.Equal(t, expectedRoot, root)
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}
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func TestFieldTrie_CopyTrieImmutable(t *testing.T) {
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newState, err := state(32)
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require.NoError(t, err)
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// 12 represents the enum value of randao mixes.
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trie, err := NewFieldTrie(13, newState.RandaoMixes(), uint64(params.BeaconConfig().EpochsPerHistoricalVector))
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require.NoError(t, err)
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newTrie := trie.CopyTrie()
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changedIdx := []uint64{2, 29}
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changedVals := [][32]byte{{'A', 'B'}, {'C', 'D'}}
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require.NoError(t, newState.UpdateRandaoMixesAtIndex(changedIdx[0], changedVals[0][:]))
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require.NoError(t, newState.UpdateRandaoMixesAtIndex(changedIdx[1], changedVals[1][:]))
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root, err := trie.RecomputeTrie(changedIdx, newState.RandaoMixes())
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require.NoError(t, err)
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newRoot, err := newTrie.TrieRoot()
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require.NoError(t, err)
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if root == newRoot {
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t.Errorf("Wanted roots to be different, but they are the same: %#x", root)
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}
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}
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func state(vCount uint64) (*BeaconState, error) {
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validators := make([]*ethpb.Validator, vCount)
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for i := 0; i < len(validators); i++ {
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k := make([]byte, 48)
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copy(k, strconv.Itoa(i))
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validators[i] = ðpb.Validator{
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PublicKey: k,
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WithdrawalCredentials: make([]byte, 32),
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ExitEpoch: params.BeaconConfig().FarFutureEpoch,
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}
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}
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return InitializeFromProto(&pb.BeaconState{
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Validators: validators,
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BlockRoots: make([][]byte, params.BeaconConfig().SlotsPerHistoricalRoot),
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StateRoots: make([][]byte, params.BeaconConfig().SlotsPerHistoricalRoot),
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RandaoMixes: make([][]byte, params.BeaconConfig().EpochsPerHistoricalVector),
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})
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}
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