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trie: test for edgecase in VerifyRangeProof #24257

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merged 3 commits into from
Jan 21, 2022
Merged

trie: test for edgecase in VerifyRangeProof #24257

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5d4154b
trie/proof: edge case for VerifyRangeProof
darioush Jan 19, 2022
696a1f8
more consistency with other tests in the file
darioush Jan 19, 2022
094cdac
trie: fix test todo
holiman Jan 21, 2022
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33 changes: 33 additions & 0 deletions trie/proof_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1067,3 +1067,36 @@ func nonRandomTrie(n int) (*Trie, map[string]*kv) {
}
return trie, vals
}

func TestRangeProofKeysWithSharedPrefix(t *testing.T) {
keys := [][]byte{
common.Hex2Bytes("aa10000000000000000000000000000000000000000000000000000000000000"),
common.Hex2Bytes("aa20000000000000000000000000000000000000000000000000000000000000"),
}
vals := [][]byte{
common.Hex2Bytes("02"),
common.Hex2Bytes("03"),
}
trie := new(Trie)
for i, key := range keys {
trie.Update(key, vals[i])
}
root := trie.Hash()
proof := memorydb.New()
start := common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000000")
end := common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")
if err := trie.Prove(start, 0, proof); err != nil {
t.Fatalf("failed to prove start: %v", err)
}
if err := trie.Prove(end, 0, proof); err != nil {
t.Fatalf("failed to prove end: %v", err)
}

more, err := VerifyRangeProof(root, start, end, keys, vals, proof)
if err != nil {
t.Fatalf("failed to verify range proof: %v", err)
}
if more != false {
t.Error("expected more to be false")
}
}