32 lines
571 B
Go
32 lines
571 B
Go
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package helper
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import (
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"hash"
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"github.com/ethereum/go-ethereum/common"
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"golang.org/x/crypto/sha3"
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)
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// testHasher (copied from go-ethereum/core/types/block_test.go)
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// satisfies types.TrieHasher
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type testHasher struct {
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hasher hash.Hash
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}
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func NewHasher() *testHasher {
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return &testHasher{hasher: sha3.NewLegacyKeccak256()}
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}
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func (h *testHasher) Reset() {
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h.hasher.Reset()
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}
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func (h *testHasher) Update(key, val []byte) {
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h.hasher.Write(key)
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h.hasher.Write(val)
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}
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func (h *testHasher) Hash() common.Hash {
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return common.BytesToHash(h.hasher.Sum(nil))
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}
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