Differential D5127 Diff 15992 src/test/txvalidationcache_tests.cpp

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src/test/txvalidationcache_tests.cpp

Show First 20 Lines • Show All 419 Lines • ▼ Show 20 Lines	// TODO: add tests for remaining script flags
}		}

// This should be valid under all script flags that support our sighash		// This should be valid under all script flags that support our sighash
// convention.		// convention.
ValidateCheckInputsForAllFlags(		ValidateCheckInputsForAllFlags(
CTransaction(tx), SCRIPT_ENABLE_REPLAY_PROTECTION,		CTransaction(tx), SCRIPT_ENABLE_REPLAY_PROTECTION,
SCRIPT_ENABLE_SIGHASH_FORKID \| SCRIPT_VERIFY_P2SH, true, 2);		SCRIPT_ENABLE_SIGHASH_FORKID \| SCRIPT_VERIFY_P2SH, true, 2);

		{
		// Try checking this valid transaction with sigchecks limiter
		// supplied. Each input consumes 1 sigcheck.

		CValidationState state;
		CTransaction transaction(tx);
		PrecomputedTransactionData txdata(transaction);
		uint32_t flags =
		STANDARD_SCRIPT_VERIFY_FLAGS \| SCRIPT_REPORT_SIGCHECKS;
		int nSigChecksDummy;

		/**
		* Parallel validation initially works (no cached value), but
		* evaluation of the script checks produces a failure.
		*/
		std::vector<CScriptCheck> scriptchecks1;
		CheckInputsLimiter sigchecklimiter1(1);
		BOOST_CHECK(CheckInputs(transaction, state, pcoinsTip.get(), true,
		flags, true, true, txdata, nSigChecksDummy,
		&scriptchecks1, &sigchecklimiter1));
		// the first check passes but it did consume the limit.
		BOOST_CHECK(scriptchecks1[1]());
		BOOST_CHECK(sigchecklimiter1.check());
		// the second check (the first input) fails due to the limiter.
		BOOST_CHECK(!scriptchecks1[0]());
		BOOST_CHECK_EQUAL(scriptchecks1[0].GetScriptError(),
		ScriptError::SIGCHECKS_LIMIT_EXCEEDED);
		BOOST_CHECK(!sigchecklimiter1.check());

		// Serial validation fails with the limiter.
		CheckInputsLimiter sigchecklimiter2(1);
		CValidationState state2;
		BOOST_CHECK(!CheckInputs(transaction, state2, pcoinsTip.get(), true,
		flags, true, true, txdata, nSigChecksDummy,
		nullptr, &sigchecklimiter2));
		BOOST_CHECK(!sigchecklimiter2.check());
		BOOST_CHECK_EQUAL(state2.GetRejectReason(), "too-many-sigchecks");

		/**
		* A slightly more permissive limiter (just enough) passes, and
		* allows caching the result.
		*/
		std::vector<CScriptCheck> scriptchecks3;
		CheckInputsLimiter sigchecklimiter3(2);
		// first in parallel
		BOOST_CHECK(CheckInputs(transaction, state, pcoinsTip.get(), true,
		flags, true, true, txdata, nSigChecksDummy,
		&scriptchecks3, &sigchecklimiter3));
		BOOST_CHECK(scriptchecks3[1]());
		BOOST_CHECK(scriptchecks3[0]());
		BOOST_CHECK(sigchecklimiter3.check());
		// then in serial, caching the result.
		CheckInputsLimiter sigchecklimiter4(2);
		BOOST_CHECK(CheckInputs(transaction, state, pcoinsTip.get(), true,
		flags, true, true, txdata, nSigChecksDummy,
		nullptr, &sigchecklimiter4));
		BOOST_CHECK(sigchecklimiter4.check());
		// now in parallel again, grabbing the cached result.
		std::vector<CScriptCheck> scriptchecks5;
		CheckInputsLimiter sigchecklimiter5(2);
		BOOST_CHECK(CheckInputs(transaction, state, pcoinsTip.get(), true,
		flags, true, true, txdata, nSigChecksDummy,
		&scriptchecks5, &sigchecklimiter5));
		BOOST_CHECK(scriptchecks5.empty());
		BOOST_CHECK(sigchecklimiter5.check());

		/**
		* Going back to the lower limit, we now fail immediately due to the
		* caching.
		*/
		CheckInputsLimiter sigchecklimiter6(1);
		CValidationState state6;
		BOOST_CHECK(!CheckInputs(transaction, state6, pcoinsTip.get(), true,
		flags, true, true, txdata, nSigChecksDummy,
		nullptr, &sigchecklimiter6));
		BOOST_CHECK_EQUAL(state6.GetRejectReason(), "too-many-sigchecks");
		BOOST_CHECK(!sigchecklimiter6.check());
		// even in parallel validation, immediate fail from the cache.
		std::vector<CScriptCheck> scriptchecks7;
		CheckInputsLimiter sigchecklimiter7(1);
		CValidationState state7;
		BOOST_CHECK(!CheckInputs(transaction, state7, pcoinsTip.get(), true,
		flags, true, true, txdata, nSigChecksDummy,
		&scriptchecks7, &sigchecklimiter7));
		BOOST_CHECK_EQUAL(state7.GetRejectReason(), "too-many-sigchecks");
		BOOST_CHECK(!sigchecklimiter7.check());
		BOOST_CHECK(scriptchecks7.empty());
		}

// Check that if the second input is invalid, but the first input is		// Check that if the second input is invalid, but the first input is
// valid, the transaction is not cached.		// valid, the transaction is not cached.
// Invalidate vin[1]		// Invalidate vin[1]
tx.vin[1].scriptSig = CScript();		tx.vin[1].scriptSig = CScript();

CValidationState state;		CValidationState state;
CTransaction transaction(tx);		CTransaction transaction(tx);
PrecomputedTransactionData txdata(transaction);		PrecomputedTransactionData txdata(transaction);
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