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Diffstat (limited to 'core/state/snapshot/wipe_test.go')
-rw-r--r--core/state/snapshot/wipe_test.go124
1 files changed, 0 insertions, 124 deletions
diff --git a/core/state/snapshot/wipe_test.go b/core/state/snapshot/wipe_test.go
deleted file mode 100644
index a656982..0000000
--- a/core/state/snapshot/wipe_test.go
+++ /dev/null
@@ -1,124 +0,0 @@
-// Copyright 2019 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package snapshot
-
-import (
- "math/rand"
- "testing"
-
- "github.com/ava-labs/coreth/core/rawdb"
- "github.com/ethereum/go-ethereum/common"
- "github.com/ethereum/go-ethereum/ethdb/memorydb"
-)
-
-// Tests that given a database with random data content, all parts of a snapshot
-// can be crrectly wiped without touching anything else.
-func TestWipe(t *testing.T) {
- // Create a database with some random snapshot data
- db := memorydb.New()
-
- for i := 0; i < 128; i++ {
- account := randomHash()
- rawdb.WriteAccountSnapshot(db, account, randomHash().Bytes())
- for j := 0; j < 1024; j++ {
- rawdb.WriteStorageSnapshot(db, account, randomHash(), randomHash().Bytes())
- }
- }
- rawdb.WriteSnapshotRoot(db, randomHash())
-
- // Add some random non-snapshot data too to make wiping harder
- for i := 0; i < 65536; i++ {
- // Generate a key that's the wrong length for a state snapshot item
- var keysize int
- for keysize == 0 || keysize == 32 || keysize == 64 {
- keysize = 8 + rand.Intn(64) // +8 to ensure we will "never" randomize duplicates
- }
- // Randomize the suffix, dedup and inject it under the snapshot namespace
- keysuffix := make([]byte, keysize)
- rand.Read(keysuffix)
-
- if rand.Int31n(2) == 0 {
- db.Put(append(rawdb.SnapshotAccountPrefix, keysuffix...), randomHash().Bytes())
- } else {
- db.Put(append(rawdb.SnapshotStoragePrefix, keysuffix...), randomHash().Bytes())
- }
- }
- // Sanity check that all the keys are present
- var items int
-
- it := db.NewIterator(rawdb.SnapshotAccountPrefix, nil)
- defer it.Release()
-
- for it.Next() {
- key := it.Key()
- if len(key) == len(rawdb.SnapshotAccountPrefix)+common.HashLength {
- items++
- }
- }
- it = db.NewIterator(rawdb.SnapshotStoragePrefix, nil)
- defer it.Release()
-
- for it.Next() {
- key := it.Key()
- if len(key) == len(rawdb.SnapshotStoragePrefix)+2*common.HashLength {
- items++
- }
- }
- if items != 128+128*1024 {
- t.Fatalf("snapshot size mismatch: have %d, want %d", items, 128+128*1024)
- }
- if hash := rawdb.ReadSnapshotRoot(db); hash == (common.Hash{}) {
- t.Errorf("snapshot block marker mismatch: have %#x, want <not-nil>", hash)
- }
- // Wipe all snapshot entries from the database
- <-wipeSnapshot(db, true)
-
- // Iterate over the database end ensure no snapshot information remains
- it = db.NewIterator(rawdb.SnapshotAccountPrefix, nil)
- defer it.Release()
-
- for it.Next() {
- key := it.Key()
- if len(key) == len(rawdb.SnapshotAccountPrefix)+common.HashLength {
- t.Errorf("snapshot entry remained after wipe: %x", key)
- }
- }
- it = db.NewIterator(rawdb.SnapshotStoragePrefix, nil)
- defer it.Release()
-
- for it.Next() {
- key := it.Key()
- if len(key) == len(rawdb.SnapshotStoragePrefix)+2*common.HashLength {
- t.Errorf("snapshot entry remained after wipe: %x", key)
- }
- }
- if hash := rawdb.ReadSnapshotRoot(db); hash != (common.Hash{}) {
- t.Errorf("snapshot block marker remained after wipe: %#x", hash)
- }
- // Iterate over the database and ensure miscellaneous items are present
- items = 0
-
- it = db.NewIterator(nil, nil)
- defer it.Release()
-
- for it.Next() {
- items++
- }
- if items != 65536 {
- t.Fatalf("misc item count mismatch: have %d, want %d", items, 65536)
- }
-}