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common/bitutil: move fuzzer to other test packages

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This commit is contained in:
Martin Holst Swende 2023-10-27 16:56:35 +02:00
parent 6e6851f632
commit db7192f873
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GPG key ID: 683B438C05A5DDF0
2 changed files with 37 additions and 59 deletions
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59
common/bitutil/codec_fuzz_test.go
View file

@ -1,59 +0,0 @@
// 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 bitutil
import (
"bytes"
"testing"
)
func FuzzEncoder(f *testing.F) {
f.Fuzz(func(t *testing.T, data []byte) {
if err := testEncodingCycle(data); err != nil {
t.Fatal(err)
}
})
}
func FuzzDecoder(f *testing.F) {
f.Fuzz(func(t *testing.T, data []byte) {
fuzzDecode(data)
})
}
// fuzzDecode implements a go-fuzz fuzzer method to test the bit decoding and
// reencoding algorithm.
func fuzzDecode(data []byte) {
blob, err := DecompressBytes(data, 1024)
if err != nil {
return
}
// re-compress it (it's OK if the re-compressed differs from the
// original - the first input may not have been compressed at all)
comp := CompressBytes(blob)
if len(comp) > len(blob) {
// After compression, it must be smaller or equal
panic("bad compression")
}
// But decompressing it once again should work
decomp, err := DecompressBytes(data, 1024)
if err != nil {
panic(err)
}
if !bytes.Equal(decomp, blob) {
panic("content mismatch")
}
}

37
common/bitutil/compress_test.go
View file

@ -184,3 +184,40 @@ func benchmarkEncoding(b *testing.B, bytes int, fill float64) {
bitsetDecodeBytes(bitsetEncodeBytes(data), len(data))
}
}
func FuzzEncoder(f *testing.F) {
f.Fuzz(func(t *testing.T, data []byte) {
if err := testEncodingCycle(data); err != nil {
t.Fatal(err)
}
})
}
func FuzzDecoder(f *testing.F) {
f.Fuzz(func(t *testing.T, data []byte) {
fuzzDecode(data)
})
}
// fuzzDecode implements a go-fuzz fuzzer method to test the bit decoding and
// reencoding algorithm.
func fuzzDecode(data []byte) {
blob, err := DecompressBytes(data, 1024)
if err != nil {
return
}
// re-compress it (it's OK if the re-compressed differs from the
// original - the first input may not have been compressed at all)
comp := CompressBytes(blob)
if len(comp) > len(blob) {
// After compression, it must be smaller or equal
panic("bad compression")
}
// But decompressing it once again should work
decomp, err := DecompressBytes(data, 1024)
if err != nil {
panic(err)
}
if !bytes.Equal(decomp, blob) {
panic("content mismatch")
}
}