mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
synced 2025-01-06 01:32:18 +00:00
2179ac683e
* Add a random fuzz test to ssz to capture panics and compare the effectiveness of the cache. This comment shows a difference in state root calculation 52% of the time and what is even more concering is that spec tests pass with the flag on. * added case for one * bring down failure rate * prevent caching operations if no cache enabled * unit test and pretty printer * identify further sources of problems * no more panics * not panicking anymore * fix lint * Merge branch 'master' into fuzz-ssz * Merge branch 'master' into fuzz-ssz * passing up to 68 * Merge branch 'fuzz-ssz' of github.com:prysmaticlabs/prysm into fuzz-ssz * need to find the culprit for 100 * 100 passes, now only 16 out of 1000 * state roots being mutated * one out of 10k * fuzzing stuff * fix up lint * Merge branch 'master' into fuzz-ssz * cleanup * fixing more comments * Merge branch 'master' into fuzz-ssz
124 lines
2.7 KiB
Go
124 lines
2.7 KiB
Go
package stateutil
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import (
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"strconv"
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"testing"
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fuzz "github.com/google/gofuzz"
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ethereum_beacon_p2p_v1 "github.com/prysmaticlabs/prysm/proto/beacon/p2p/v1"
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)
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func TestStateRootCacheFuzz_100(t *testing.T) {
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fuzzStateRootCache(t, 0, 100)
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}
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func TestStateRootCacheFuzz_1000(t *testing.T) {
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fuzzStateRootCache(t, 1, 1000)
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}
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func TestStateRootCacheFuzz_10000(t *testing.T) {
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fuzzStateRootCache(t, 2, 10000)
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}
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func TestStateRootCacheFuzz_100000(t *testing.T) {
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fuzzStateRootCache(t, 3, 100000)
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}
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func TestStateRootCacheFuzz_1000000(t *testing.T) {
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fuzzStateRootCache(t, 4, 1000000)
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}
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func TestStateRootCacheFuzz_10000000(t *testing.T) {
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fuzzStateRootCache(t, 5, 10000000)
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}
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func fuzzStateRootCache(t *testing.T, seed int64, iterations uint64) {
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fuzzer := fuzz.NewWithSeed(seed)
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state := ðereum_beacon_p2p_v1.BeaconState{}
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hasher := &stateRootHasher{}
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hasherWithCache := globalHasher
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mismatch := 0
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mismatchedIndices := make([]uint64, 0)
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for i := uint64(0); i < iterations; i++ {
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if i == 501 {
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break
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}
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fuzzer.Fuzz(state)
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var a, b [32]byte
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func() {
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defer func() {
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if r := recover(); r != nil {
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t.Errorf("Non-cached HTR panicked on iteration %d", i)
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panic(r)
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}
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}()
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var err error
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a, err = hasher.hashTreeRootState(state)
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if err != nil {
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t.Fatal(err)
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}
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}()
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func() {
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defer func() {
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if r := recover(); r != nil {
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t.Errorf("Cached HTR panicked on iteration %d", i)
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panic(r)
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}
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}()
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var err error
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b, err = hasherWithCache.hashTreeRootState(state)
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if err != nil {
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t.Fatal(err)
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}
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}()
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if a != b {
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mismatch++
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mismatchedIndices = append(mismatchedIndices, i)
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}
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}
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if mismatch > 0 {
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t.Errorf("Mismatched indices: %v", mismatchedIndices)
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t.Fatalf("%d of %d random states had different roots", mismatch, iterations)
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}
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}
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func TestHashTreeRootState_ElementsChanged_RecomputeBranch(t *testing.T) {
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hasher := &stateRootHasher{}
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hasherWithCache := globalHasher
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state := ðereum_beacon_p2p_v1.BeaconState{}
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initialRoots := make([][]byte, 5)
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for i := 0; i < len(initialRoots); i++ {
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var someRt [32]byte
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copy(someRt[:], "hello")
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initialRoots[i] = someRt[:]
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}
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state.RandaoMixes = initialRoots
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if _, err := hasherWithCache.hashTreeRootState(state); err != nil {
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t.Fatal(err)
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}
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badRoots := make([][]byte, 5)
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for i := 0; i < len(badRoots); i++ {
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var someRt [32]byte
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copy(someRt[:], strconv.Itoa(i))
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badRoots[i] = someRt[:]
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}
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state.RandaoMixes = badRoots
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r1, err := hasher.hashTreeRootState(state)
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if err != nil {
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t.Fatal(err)
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}
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r2, err := hasherWithCache.hashTreeRootState(state)
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if err != nil {
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t.Fatal(err)
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}
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if r1 != r2 {
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t.Errorf("Wanted %#x (nocache), received %#x (withcache)", r1, r2)
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}
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}
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