added deployments tests from bitcoin + fixes
This commit is contained in:
parent
75389e6169
commit
3db431aa8e
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@ -2,14 +2,14 @@ use chain::BlockHeader;
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use {BlockRef, BlockHeaderProvider};
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use {BlockRef, BlockHeaderProvider};
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pub struct BlockAncestors<'a> {
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pub struct BlockAncestors<'a> {
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block: BlockRef,
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block: Option<BlockRef>,
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headers: &'a BlockHeaderProvider,
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headers: &'a BlockHeaderProvider,
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}
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}
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impl<'a> BlockAncestors<'a> {
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impl<'a> BlockAncestors<'a> {
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pub fn new(block: BlockRef, headers: &'a BlockHeaderProvider) -> Self {
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pub fn new(block: BlockRef, headers: &'a BlockHeaderProvider) -> Self {
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BlockAncestors {
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BlockAncestors {
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block: block,
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block: Some(block),
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headers: headers,
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headers: headers,
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}
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}
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}
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}
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@ -19,10 +19,11 @@ impl<'a> Iterator for BlockAncestors<'a> {
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type Item = BlockHeader;
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type Item = BlockHeader;
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fn next(&mut self) -> Option<Self::Item> {
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fn next(&mut self) -> Option<Self::Item> {
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let result = self.headers.block_header(self.block.clone());
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let result = self.block.take().and_then(|block| self.headers.block_header(block));
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if let Some(ref header) = result {
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self.block = match result {
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self.block = BlockRef::Hash(header.previous_header_hash.clone());
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Some(ref header) => Some(BlockRef::Hash(header.previous_header_hash.clone())),
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}
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None => None,
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};
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result
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result
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}
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}
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}
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}
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@ -6,7 +6,7 @@ use hash::H256;
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use db::{BlockHeaderProvider, BlockRef, BlockAncestors, BlockIterator};
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use db::{BlockHeaderProvider, BlockRef, BlockAncestors, BlockIterator};
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use timestamp::median_timestamp;
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use timestamp::median_timestamp;
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#[derive(Debug, Clone, Copy)]
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#[derive(Debug, PartialEq, Clone, Copy)]
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enum ThresholdState {
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enum ThresholdState {
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Defined,
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Defined,
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Started,
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Started,
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@ -73,7 +73,7 @@ impl Deployments {
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match consensus.csv_deployment {
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match consensus.csv_deployment {
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Some(csv) => {
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Some(csv) => {
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let mut cache = self.cache.lock();
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let mut cache = self.cache.lock();
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threshold_state(&mut cache, csv, number, headers, consensus).is_active()
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threshold_state(&mut cache, csv, number, headers, consensus.miner_confirmation_window, consensus.rule_change_activation_threshold).is_active()
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},
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},
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None => false
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None => false
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}
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}
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@ -84,7 +84,7 @@ impl Deployments {
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match consensus.segwit_deployment {
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match consensus.segwit_deployment {
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Some(segwit) => {
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Some(segwit) => {
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let mut cache = self.cache.lock();
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let mut cache = self.cache.lock();
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threshold_state(&mut cache, segwit, number, headers, consensus).is_active()
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threshold_state(&mut cache, segwit, number, headers, consensus.miner_confirmation_window, consensus.rule_change_activation_threshold).is_active()
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},
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},
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None => false
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None => false
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}
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}
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@ -111,7 +111,7 @@ impl<'a> BlockDeployments<'a> {
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}
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}
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/// Calculates threshold state of given deployment
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/// Calculates threshold state of given deployment
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fn threshold_state(cache: &mut DeploymentStateCache, deployment: Deployment, number: u32, headers: &BlockHeaderProvider, consensus: &ConsensusParams) -> ThresholdState {
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fn threshold_state(cache: &mut DeploymentStateCache, deployment: Deployment, number: u32, headers: &BlockHeaderProvider, miner_confirmation_window: u32, rule_change_activation_threshold: u32) -> ThresholdState {
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// deployments are checked using previous block index
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// deployments are checked using previous block index
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if let Some(activation) = deployment.activation {
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if let Some(activation) = deployment.activation {
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if activation <= number {
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if activation <= number {
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@ -121,8 +121,13 @@ fn threshold_state(cache: &mut DeploymentStateCache, deployment: Deployment, num
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}
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}
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}
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}
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// number is number of block which is currently validating
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// => it is not in database
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// we need to make all checks for previous blocks
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let number = number.saturating_sub(1);
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// get number of the first block in the period
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// get number of the first block in the period
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let number = first_of_the_period(number.saturating_sub(1), consensus.miner_confirmation_window);
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let number = first_of_the_period(number, miner_confirmation_window);
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let hash = match headers.block_header(BlockRef::Number(number)) {
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let hash = match headers.block_header(BlockRef::Number(number)) {
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Some(header) => header.hash(),
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Some(header) => header.hash(),
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@ -140,9 +145,8 @@ fn threshold_state(cache: &mut DeploymentStateCache, deployment: Deployment, num
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if deployment_state.state.is_final() {
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if deployment_state.state.is_final() {
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return deployment_state.state
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return deployment_state.state
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}
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}
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let from_block = deployment_state.block_number + consensus.miner_confirmation_window;
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let threshold_state = deployment_state.state;
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let threshold_state = deployment_state.state;
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let deployment_iter = ThresholdIterator::new(deployment, headers, from_block, consensus, threshold_state);
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let deployment_iter = ThresholdIterator::new(deployment, headers, number, miner_confirmation_window, rule_change_activation_threshold, threshold_state);
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let state = match deployment_iter.last() {
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let state = match deployment_iter.last() {
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Some(state) => state,
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Some(state) => state,
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None => DeploymentState {
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None => DeploymentState {
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@ -156,7 +160,7 @@ fn threshold_state(cache: &mut DeploymentStateCache, deployment: Deployment, num
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result
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result
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},
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},
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Entry::Vacant(entry) => {
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Entry::Vacant(entry) => {
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let deployment_iter = ThresholdIterator::new(deployment, headers, 0, consensus, ThresholdState::Defined);
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let deployment_iter = ThresholdIterator::new(deployment, headers, miner_confirmation_window - 1, miner_confirmation_window, rule_change_activation_threshold, ThresholdState::Defined);
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let state = deployment_iter.last().unwrap_or_default();
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let state = deployment_iter.last().unwrap_or_default();
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let result = state.state;
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let result = state.state;
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entry.insert(state);
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entry.insert(state);
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@ -184,17 +188,19 @@ struct ThresholdIterator<'a> {
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deployment: Deployment,
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deployment: Deployment,
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block_iterator: BlockIterator<'a>,
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block_iterator: BlockIterator<'a>,
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headers: &'a BlockHeaderProvider,
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headers: &'a BlockHeaderProvider,
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consensus: &'a ConsensusParams,
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miner_confirmation_window: u32,
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rule_change_activation_threshold: u32,
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last_state: ThresholdState,
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last_state: ThresholdState,
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}
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}
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impl<'a> ThresholdIterator<'a> {
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impl<'a> ThresholdIterator<'a> {
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fn new(deployment: Deployment, headers: &'a BlockHeaderProvider, to_check: u32, consensus: &'a ConsensusParams, state: ThresholdState) -> Self {
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fn new(deployment: Deployment, headers: &'a BlockHeaderProvider, to_check: u32, miner_confirmation_window: u32, rule_change_activation_threshold: u32, state: ThresholdState) -> Self {
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ThresholdIterator {
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ThresholdIterator {
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deployment: deployment,
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deployment: deployment,
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block_iterator: BlockIterator::new(to_check, consensus.miner_confirmation_window, headers),
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block_iterator: BlockIterator::new(to_check, miner_confirmation_window, headers),
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headers: headers,
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headers: headers,
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consensus: consensus,
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miner_confirmation_window: miner_confirmation_window,
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rule_change_activation_threshold: rule_change_activation_threshold,
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last_state: state,
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last_state: state,
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}
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}
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}
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}
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@ -223,8 +229,8 @@ impl<'a> Iterator for ThresholdIterator<'a> {
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if median >= self.deployment.timeout {
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if median >= self.deployment.timeout {
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self.last_state = ThresholdState::Failed;
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self.last_state = ThresholdState::Failed;
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} else {
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} else {
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let count = count_deployment_matches(block_number, self.headers, self.deployment, self.consensus.miner_confirmation_window);
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let count = count_deployment_matches(block_number, self.headers, self.deployment, self.miner_confirmation_window);
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if count >= self.consensus.rule_change_activation_threshold as usize {
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if count >= self.rule_change_activation_threshold as usize {
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self.last_state = ThresholdState::LockedIn;
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self.last_state = ThresholdState::LockedIn;
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}
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}
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}
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}
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@ -249,7 +255,78 @@ impl<'a> Iterator for ThresholdIterator<'a> {
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#[cfg(test)]
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#[cfg(test)]
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mod tests {
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mod tests {
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use super::first_of_the_period;
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use std::collections::HashMap;
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use chain::BlockHeader;
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use db::{BlockHeaderProvider, BlockRef};
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use network::Deployment;
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use hash::H256;
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use primitives::bytes::Bytes;
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use super::{DeploymentStateCache, ThresholdState, first_of_the_period, threshold_state};
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const MINER_CONFIRMATION_WINDOW: u32 = 1000;
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const RULE_CHANGE_ACTIVATION_THRESHOLD: u32 = 900;
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#[derive(Default)]
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struct DeploymentHeaderProvider {
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pub by_height: Vec<BlockHeader>,
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pub by_hash: HashMap<H256, usize>,
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}
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impl DeploymentHeaderProvider {
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pub fn mine(&mut self, height: u32, time: u32, version: u32) {
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let mut previous_header_hash = self.by_height.last().map(|h| h.previous_header_hash.clone()).unwrap_or(H256::default());
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while self.by_height.len() < height as usize {
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let header = BlockHeader {
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version: version,
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previous_header_hash: previous_header_hash,
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merkle_root_hash: Default::default(),
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time: time,
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bits: 0.into(),
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nonce: height,
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};
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previous_header_hash = header.hash();
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self.by_height.push(header);
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self.by_hash.insert(previous_header_hash.clone(), self.by_height.len() - 1);
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}
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}
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}
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impl BlockHeaderProvider for DeploymentHeaderProvider {
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fn block_header_bytes(&self, _block_ref: BlockRef) -> Option<Bytes> {
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unimplemented!()
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}
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fn block_header(&self, block_ref: BlockRef) -> Option<BlockHeader> {
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match block_ref {
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BlockRef::Number(height) => self.by_height.get(height as usize).cloned(),
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BlockRef::Hash(hash) => self.by_hash.get(&hash).and_then(|height| self.by_height.get(*height)).cloned(),
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}
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}
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}
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fn make_test_time(height: u32) -> u32 {
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1415926536 + 600 * height
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}
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fn prepare_deployments() -> (DeploymentStateCache, DeploymentHeaderProvider, Deployment) {
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let (mut cache, headers, deployment) = (
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DeploymentStateCache::default(),
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DeploymentHeaderProvider::default(),
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Deployment {
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name: "test",
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bit: 0,
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start_time: make_test_time(10000),
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timeout: make_test_time(20000),
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activation: None,
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},
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);
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assert_eq!(threshold_state(&mut cache, deployment, 0, &headers, MINER_CONFIRMATION_WINDOW, RULE_CHANGE_ACTIVATION_THRESHOLD), ThresholdState::Defined);
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assert_eq!(threshold_state(&mut DeploymentStateCache::default(), deployment, 0, &headers, MINER_CONFIRMATION_WINDOW, RULE_CHANGE_ACTIVATION_THRESHOLD), ThresholdState::Defined);
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(cache, headers, deployment)
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}
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#[test]
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#[test]
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fn test_first_of_the_period() {
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fn test_first_of_the_period() {
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@ -263,4 +340,125 @@ mod tests {
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assert_eq!(8063, first_of_the_period(10000, window));
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assert_eq!(8063, first_of_the_period(10000, window));
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assert_eq!(8063, first_of_the_period(10001, window));
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assert_eq!(8063, first_of_the_period(10001, window));
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}
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}
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// https://github.com/bitcoin/bitcoin/blob/a90e6d2bffc422ddcdb771c53aac0bceb970a2c4/src/test/versionbits_tests.cpp#L149
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#[test]
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fn test_threshold_state_defined_to_failed() {
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let (mut cache, mut headers, deployment) = prepare_deployments();
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let test_cases = vec![
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(1, make_test_time(1), 0x20000001, ThresholdState::Defined),
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(11, make_test_time(11), 0x20000001, ThresholdState::Defined),
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(989, make_test_time(989), 0x20000001, ThresholdState::Defined),
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(999, make_test_time(20000), 0x20000001, ThresholdState::Defined),
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(1000, make_test_time(30000), 0x20000001, ThresholdState::Failed),
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(1999, make_test_time(30001), 0x20000001, ThresholdState::Failed),
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(2000, make_test_time(30002), 0x20000001, ThresholdState::Failed),
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(2001, make_test_time(30003), 0x20000001, ThresholdState::Failed),
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(2999, make_test_time(30004), 0x20000001, ThresholdState::Failed),
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(3000, make_test_time(30005), 0x20000001, ThresholdState::Failed),
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];
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for (height, time, version, state) in test_cases {
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headers.mine(height, time, version);
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assert_eq!(threshold_state(&mut cache, deployment, height, &headers, MINER_CONFIRMATION_WINDOW, RULE_CHANGE_ACTIVATION_THRESHOLD), state);
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assert_eq!(threshold_state(&mut DeploymentStateCache::default(), deployment, height, &headers, MINER_CONFIRMATION_WINDOW, RULE_CHANGE_ACTIVATION_THRESHOLD), state);
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}
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}
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// https://github.com/bitcoin/bitcoin/blob/a90e6d2bffc422ddcdb771c53aac0bceb970a2c4/src/test/versionbits_tests.cpp#L162
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#[test]
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fn test_threshold_state_defined_to_started_to_failed() {
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let (mut cache, mut headers, deployment) = prepare_deployments();
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let test_cases = vec![
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(1, make_test_time(1), 0x20000000, ThresholdState::Defined),
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(1000, make_test_time(10000) - 1, 0x20000001, ThresholdState::Defined),
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(2000, make_test_time(10000), 0x20000001, ThresholdState::Started),
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(2051, make_test_time(10010), 0x20000000, ThresholdState::Started),
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(2950, make_test_time(10020), 0x20000001, ThresholdState::Started),
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(3000, make_test_time(20000), 0x20000000, ThresholdState::Failed),
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(4000, make_test_time(20010), 0x20000001, ThresholdState::Failed),
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];
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for (height, time, version, state) in test_cases {
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headers.mine(height, time, version);
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assert_eq!(threshold_state(&mut cache, deployment, height, &headers, MINER_CONFIRMATION_WINDOW, RULE_CHANGE_ACTIVATION_THRESHOLD), state);
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assert_eq!(threshold_state(&mut DeploymentStateCache::default(), deployment, height, &headers, MINER_CONFIRMATION_WINDOW, RULE_CHANGE_ACTIVATION_THRESHOLD), state);
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}
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}
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// https://github.com/bitcoin/bitcoin/blob/a90e6d2bffc422ddcdb771c53aac0bceb970a2c4/src/test/versionbits_tests.cpp#L172
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#[test]
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fn test_threshold_state_defined_to_started_to_failed_when_threshold_reached() {
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let (mut cache, mut headers, deployment) = prepare_deployments();
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let test_cases = vec![
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(1, make_test_time(1), 0x20000000, ThresholdState::Defined),
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(1000, make_test_time(10000) - 1, 0x20000001, ThresholdState::Defined),
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(2000, make_test_time(10000), 0x20000001, ThresholdState::Started),
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(2999, make_test_time(30000), 0x20000001, ThresholdState::Started),
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(3000, make_test_time(30000), 0x20000001, ThresholdState::Failed),
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(3999, make_test_time(30001), 0x20000000, ThresholdState::Failed),
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(4000, make_test_time(30002), 0x20000000, ThresholdState::Failed),
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(14333, make_test_time(30003), 0x20000000, ThresholdState::Failed),
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(20000, make_test_time(40000), 0x20000000, ThresholdState::Failed),
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];
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for (height, time, version, state) in test_cases {
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headers.mine(height, time, version);
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assert_eq!(threshold_state(&mut cache, deployment, height, &headers, MINER_CONFIRMATION_WINDOW, RULE_CHANGE_ACTIVATION_THRESHOLD), state);
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assert_eq!(threshold_state(&mut DeploymentStateCache::default(), deployment, height, &headers, MINER_CONFIRMATION_WINDOW, RULE_CHANGE_ACTIVATION_THRESHOLD), state);
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}
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}
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// https://github.com/bitcoin/bitcoin/blob/a90e6d2bffc422ddcdb771c53aac0bceb970a2c4/src/test/versionbits_tests.cpp#L184
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#[test]
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||||||
|
fn test_threshold_state_defined_to_started_to_lockedin() {
|
||||||
|
let (mut cache, mut headers, deployment) = prepare_deployments();
|
||||||
|
let test_cases = vec![
|
||||||
|
(1, make_test_time(1), 0x20000000, ThresholdState::Defined),
|
||||||
|
(1000, make_test_time(10000) - 1, 0x20000001, ThresholdState::Defined),
|
||||||
|
(2000, make_test_time(10000), 0x20000001, ThresholdState::Started),
|
||||||
|
(2050, make_test_time(10010), 0x20000000, ThresholdState::Started),
|
||||||
|
(2950, make_test_time(10020), 0x20000001, ThresholdState::Started),
|
||||||
|
(2999, make_test_time(19999), 0x20000000, ThresholdState::Started),
|
||||||
|
(3000, make_test_time(29999), 0x20000000, ThresholdState::LockedIn),
|
||||||
|
(3999, make_test_time(30001), 0x20000000, ThresholdState::LockedIn),
|
||||||
|
(4000, make_test_time(30002), 0x20000000, ThresholdState::Active),
|
||||||
|
(14333, make_test_time(30003), 0x20000000, ThresholdState::Active),
|
||||||
|
(24000, make_test_time(40000), 0x20000000, ThresholdState::Active),
|
||||||
|
];
|
||||||
|
|
||||||
|
for (height, time, version, state) in test_cases {
|
||||||
|
headers.mine(height, time, version);
|
||||||
|
|
||||||
|
assert_eq!(threshold_state(&mut cache, deployment, height, &headers, MINER_CONFIRMATION_WINDOW, RULE_CHANGE_ACTIVATION_THRESHOLD), state);
|
||||||
|
assert_eq!(threshold_state(&mut DeploymentStateCache::default(), deployment, height, &headers, MINER_CONFIRMATION_WINDOW, RULE_CHANGE_ACTIVATION_THRESHOLD), state);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// https://github.com/bitcoin/bitcoin/blob/a90e6d2bffc422ddcdb771c53aac0bceb970a2c4/src/test/versionbits_tests.cpp#L198
|
||||||
|
#[test]
|
||||||
|
fn test_threshold_state_defined_multiple_to_started_multiple_to_failed() {
|
||||||
|
let (mut cache, mut headers, deployment) = prepare_deployments();
|
||||||
|
let test_cases = vec![
|
||||||
|
(999, make_test_time(999), 0x20000000, ThresholdState::Defined),
|
||||||
|
(1000, make_test_time(1000), 0x20000000, ThresholdState::Defined),
|
||||||
|
(2000, make_test_time(2000), 0x20000000, ThresholdState::Defined),
|
||||||
|
(3000, make_test_time(10000), 0x20000000, ThresholdState::Started),
|
||||||
|
(4000, make_test_time(10000), 0x20000000, ThresholdState::Started),
|
||||||
|
(5000, make_test_time(10000), 0x20000000, ThresholdState::Started),
|
||||||
|
(6000, make_test_time(20000), 0x20000000, ThresholdState::Failed),
|
||||||
|
(7000, make_test_time(20000), 0x20000001, ThresholdState::Failed),
|
||||||
|
];
|
||||||
|
|
||||||
|
for (height, time, version, state) in test_cases {
|
||||||
|
headers.mine(height, time, version);
|
||||||
|
|
||||||
|
assert_eq!(threshold_state(&mut cache, deployment, height, &headers, MINER_CONFIRMATION_WINDOW, RULE_CHANGE_ACTIVATION_THRESHOLD), state);
|
||||||
|
assert_eq!(threshold_state(&mut DeploymentStateCache::default(), deployment, height, &headers, MINER_CONFIRMATION_WINDOW, RULE_CHANGE_ACTIVATION_THRESHOLD), state);
|
||||||
|
}
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
Loading…
Reference in New Issue