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Add fuzz test for UnmarshalCandidate

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This commit is contained in:
Vinayak Mishra
2026-04-16 17:16:04 +05:45
committed by Jo Turk
parent 883b73c4c4
commit e6483a6066
1 changed files with 33 additions and 0 deletions
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candidate_test.go
+33
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@@ -1454,3 +1454,36 @@ func TestCandidateRemoveExtension(t *testing.T) {
require.Empty(t, candidate.Extensions())
})
}
func FuzzUnmarshalCandidate(f *testing.F) {
// Seed corpus from real-world ICE candidate strings covering all candidate
// types, address families, and extension combinations.
f.Add("750 1 udp 500 fcd9:e3b8:12ce:9fc5:74a5:c6bb:d8b:e08a 53987 typ host")
f.Add("4273957277 1 udp 2130706431 10.0.75.1 53634 typ host")
f.Add("1052353102 1 tcp 2128609279 192.168.0.196 0 typ host tcptype active")
f.Add("1380287402 1 udp 2130706431 e2494022-4d9a-4c1e-a750-cc48d4f8d6ee.local 60542 typ host")
f.Add("647372371 1 udp 1694498815 191.228.238.68 53991 typ srflx raddr 192.168.0.274 rport 53991")
//nolint: lll
f.Add("4207374052 1 tcp 1685790463 192.0.2.15 50000 typ prflx raddr 10.0.0.1 rport 12345 generation 0 network-id 2 network-cost 10")
f.Add("848194626 1 udp 16777215 50.0.0.1 5000 typ relay raddr 192.168.0.1 rport 5001")
f.Add("candidate:750 1 udp 500 127.0.0.1 80 typ host")
f.Add(" 1 udp 500 127.0.0.1 80 typ host")
f.Add("1052353102 1 tcp 2128609279 192.168.0.196 0 typ host tcptype passive")
f.Add("1052353102 1 tcp 2128609279 192.168.0.196 0 typ host tcptype so")
f.Add("750 1 udp 500 10.0.0.1 0 typ host")
f.Add("750 1 udp 500 10.0.0.1 65535 typ host")
f.Add("1380287402 1 udp 2130706431 redacted-ip.invalid 60542 typ host")
f.Fuzz(func(t *testing.T, raw string) {
candidate, err := UnmarshalCandidate(raw)
if err != nil {
return
}
// If parsing succeeded, marshaling must not panic.
marshaled := candidate.Marshal()
// Re-parsing the marshaled output must not panic either.
_, _ = UnmarshalCandidate(marshaled)
})
}