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Merge #20761: fuzz: Check that NULL_DATA is unspendable

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fa26303286 fuzz: Check that NULL_DATA is unspendable (MarcoFalke)

Pull request description:

  * Every script of type NULL_DATA must be unspendable
  * The only know types of unspendable scripts are NULL_DATA and certain NONSTANDARD scripts

ACKs for top commit:
  sipa:
    utACK fa26303286

Tree-SHA512: 8297fbacf32b4868b12accc1c052d352d02d96540a1fc883de9d04a3df8734116deecc33046495c9a3af6d79fec7f8d63afbfa5e401a2ca8d7c70f0f13735c0d
This commit is contained in:
MarcoFalke 2020-12-25 07:41:09 +01:00
commit 443988d406
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GPG key ID: D2EA4850E7528B25
1 changed files with 7 additions and 1 deletions
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8
src/test/fuzz/script.cpp
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@ -72,6 +72,13 @@ FUZZ_TARGET_INIT(script, initialize_script)
TxoutType which_type;
(void)IsStandard(script, which_type);
if (which_type == TxoutType::NULL_DATA) {
assert(script.IsUnspendable());
}
if (script.IsUnspendable()) {
assert(which_type == TxoutType::NULL_DATA ||
which_type == TxoutType::NONSTANDARD);
}
(void)RecursiveDynamicUsage(script);
@ -82,7 +89,6 @@ FUZZ_TARGET_INIT(script, initialize_script)
(void)script.IsPayToScriptHash();
(void)script.IsPayToWitnessScriptHash();
(void)script.IsPushOnly();
(void)script.IsUnspendable();
(void)script.GetSigOpCount(/* fAccurate= */ false);
(void)FormatScript(script);