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https://gitlab.com/pulsechaincom/prysm-pulse.git
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53f7030871
* handle trie recomputes * recomp * state trie * args * deep source * amend test * proofs test more fixes * tests pass
65 lines
2.1 KiB
Go
65 lines
2.1 KiB
Go
package v1_test
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import (
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"context"
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"testing"
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v1 "github.com/prysmaticlabs/prysm/beacon-chain/state/v1"
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"github.com/prysmaticlabs/prysm/container/trie"
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"github.com/prysmaticlabs/prysm/testing/require"
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"github.com/prysmaticlabs/prysm/testing/util"
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)
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func TestBeaconStateMerkleProofs(t *testing.T) {
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ctx := context.Background()
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st, _ := util.DeterministicGenesisState(t, 256)
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htr, err := st.HashTreeRoot(ctx)
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require.NoError(t, err)
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t.Run("current sync committee", func(t *testing.T) {
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_, err := st.CurrentSyncCommitteeProof(ctx)
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require.ErrorContains(t, "unsupported", err)
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})
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t.Run("next sync committee", func(t *testing.T) {
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_, err := st.NextSyncCommitteeProof(ctx)
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require.ErrorContains(t, "unsupported", err)
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})
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t.Run("finalized root", func(t *testing.T) {
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finalizedRoot := st.FinalizedCheckpoint().Root
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proof, err := st.FinalizedRootProof(ctx)
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require.NoError(t, err)
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gIndex := v1.FinalizedRootGeneralizedIndex()
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valid := trie.VerifyMerkleProof(htr[:], finalizedRoot, gIndex, proof)
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require.Equal(t, true, valid)
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})
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t.Run("recomputes root on dirty fields", func(t *testing.T) {
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currentRoot, err := st.HashTreeRoot(ctx)
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require.NoError(t, err)
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cpt := st.FinalizedCheckpoint()
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require.NoError(t, err)
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// Edit the checkpoint.
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cpt.Epoch = 100
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require.NoError(t, st.SetFinalizedCheckpoint(cpt))
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// Produce a proof for the finalized root.
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proof, err := st.FinalizedRootProof(ctx)
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require.NoError(t, err)
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// We expect the previous step to have triggered
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// a recomputation of dirty fields in the beacon state, resulting
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// in a new hash tree root as the finalized checkpoint had previously
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// changed and should have been marked as a dirty state field.
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// The proof validity should be false for the old root, but true for the new.
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finalizedRoot := st.FinalizedCheckpoint().Root
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gIndex := v1.FinalizedRootGeneralizedIndex()
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valid := trie.VerifyMerkleProof(currentRoot[:], finalizedRoot, gIndex, proof)
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require.Equal(t, false, valid)
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newRoot, err := st.HashTreeRoot(ctx)
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require.NoError(t, err)
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valid = trie.VerifyMerkleProof(newRoot[:], finalizedRoot, gIndex, proof)
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require.Equal(t, true, valid)
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})
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}
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