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versionbits: Add explicit NEVER_ACTIVE deployments

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Previously we used deployments that would timeout prior to Bitcoin's
invention, which allowed the deployment to still be activated in unit
tests. This switches those deployments to be truly never active.

Github-Pull: #21377
Rebased-From: 55ac5f568a
This commit is contained in:
Anthony Towns 2021-03-27 23:00:14 +10:00 • committed by Andrew Chow
parent b529222ad1
commit 3acf0379e0
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GPG key ID: 17565732E08E5E41
6 changed files with 48 additions and 41 deletions
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27
src/test/fuzz/versionbits.cpp
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@ -160,13 +160,12 @@ void test_one_input(const std::vector<uint8_t>& buffer)
} else {
if (fuzzed_data_provider.ConsumeBool()) {
start_time = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
timeout = Consensus::BIP9Deployment::NO_TIMEOUT;
always_active_test = true;
} else {
start_time = 1199145601; // January 1, 2008
timeout = 1230767999; // December 31, 2008
start_time = Consensus::BIP9Deployment::NEVER_ACTIVE;
never_active_test = true;
}
timeout = fuzzed_data_provider.ConsumeBool() ? Consensus::BIP9Deployment::NO_TIMEOUT : fuzzed_data_provider.ConsumeIntegral<int64_t>();
}
int min_activation = fuzzed_data_provider.ConsumeIntegralInRange<int>(0, period * max_periods);
@ -318,7 +317,7 @@ void test_one_input(const std::vector<uint8_t>& buffer)
assert(exp_state == ThresholdState::ACTIVE || exp_state == ThresholdState::LOCKED_IN);
break;
case ThresholdState::FAILED:
assert(current_block->GetMedianTimePast() >= checker.m_end);
assert(never_active_test || current_block->GetMedianTimePast() >= checker.m_end);
assert(exp_state != ThresholdState::LOCKED_IN && exp_state != ThresholdState::ACTIVE);
break;
default:
@ -330,25 +329,19 @@ void test_one_input(const std::vector<uint8_t>& buffer)
assert(state == ThresholdState::ACTIVE || state == ThresholdState::FAILED);
}
// "always active" has additional restrictions
if (always_active_test) {
// "always active" has additional restrictions
assert(state == ThresholdState::ACTIVE);
assert(exp_state == ThresholdState::ACTIVE);
assert(since == 0);
} else if (never_active_test) {
// "never active" does too
assert(state == ThresholdState::FAILED);
assert(exp_state == ThresholdState::FAILED);
assert(since == 0);
} else {
// except for always active, the initial state is always DEFINED
// for signalled deployments, the initial state is always DEFINED
assert(since > 0 || state == ThresholdState::DEFINED);
assert(exp_since > 0 || exp_state == ThresholdState::DEFINED);
}
// "never active" does too
if (never_active_test) {
assert(state == ThresholdState::FAILED);
assert(since == period);
if (exp_since == 0) {
assert(exp_state == ThresholdState::DEFINED);
} else {
assert(exp_state == ThresholdState::FAILED);
}
}
}