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// SPDX-License-Identifier: Apache-2.0

// Copyright (c) 2024-2026 Quad4.io

//go:build !js

package interfaces

import (

"crypto/sha256"

"encoding/hex"

"testing"

)

func FuzzParsePeerKeyPin(f *testing.F) {

f.Add("")

f.Add("aabbccddeeff00112233445566778899aabbccddeeff00112233445566778899")

f.Add("not-hex")

f.Add(hex.EncodeToString(make([]byte, sha256.Size)))

f.Fuzz(func(t *testing.T, s string) {

_, _ = parsePeerKeyPin(s)

})

}

func FuzzHDLCViaQUICDecoder(f *testing.F) {

f.Add([]byte{HDLCFlag, 0x01, 0x02, HDLCFlag})

f.Add([]byte{HDLCFlag, HDLCEsc, HDLCFlag ^ HDLCEscMask, HDLCFlag})

f.Add(make([]byte, 4096))

f.Fuzz(func(t *testing.T, data []byte) {

var n int

d := newHDLCToggleStreamDecoder(DefaultMTU, func(payload []byte) {

n++

if len(payload) > DefaultMTU {

t.Fatalf("payload larger than MTU: %d", len(payload))

}

})

// Feed in chunks to stress incremental decode.

for i := 0; i < len(data); {

end := min(i+17, len(data))

d.feed(data[i:end])

i = end

}

_ = n

})

}