forked from cerc-io/plugeth
60 lines
1.8 KiB
Go
60 lines
1.8 KiB
Go
// Copyright 2023 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 utesting provides a standalone replacement for package testing.
|
|
//
|
|
// This package exists because package testing cannot easily be embedded into a
|
|
// standalone go program. It provides an API that mirrors the standard library
|
|
// testing API.
|
|
|
|
package blocktest
|
|
|
|
import (
|
|
"hash"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"golang.org/x/crypto/sha3"
|
|
)
|
|
|
|
// testHasher is the helper tool for transaction/receipt list hashing.
|
|
// The original hasher is trie, in order to get rid of import cycle,
|
|
// use the testing hasher instead.
|
|
type testHasher struct {
|
|
hasher hash.Hash
|
|
}
|
|
|
|
// NewHasher returns a new testHasher instance.
|
|
func NewHasher() *testHasher {
|
|
return &testHasher{hasher: sha3.NewLegacyKeccak256()}
|
|
}
|
|
|
|
// Reset resets the hash state.
|
|
func (h *testHasher) Reset() {
|
|
h.hasher.Reset()
|
|
}
|
|
|
|
// Update updates the hash state with the given key and value.
|
|
func (h *testHasher) Update(key, val []byte) error {
|
|
h.hasher.Write(key)
|
|
h.hasher.Write(val)
|
|
return nil
|
|
}
|
|
|
|
// Hash returns the hash value.
|
|
func (h *testHasher) Hash() common.Hash {
|
|
return common.BytesToHash(h.hasher.Sum(nil))
|
|
}
|