2020-07-22 05:10:02 -07:00
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//! Consensus parameter tests for Zebra.
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use super::*;
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use NetworkUpgrade::*;
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use std::collections::HashSet;
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use zebra_chain::types::BlockHeight;
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use zebra_chain::{Network, Network::*};
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/// Check that the activation heights and network upgrades are unique.
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#[test]
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fn activation_bijective() {
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let mainnet_activations = NetworkUpgrade::activation_list(Mainnet);
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let mainnet_heights: HashSet<&BlockHeight> = mainnet_activations.keys().collect();
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assert_eq!(MAINNET_ACTIVATION_HEIGHTS.len(), mainnet_heights.len());
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let mainnet_nus: HashSet<&NetworkUpgrade> = mainnet_activations.values().collect();
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assert_eq!(MAINNET_ACTIVATION_HEIGHTS.len(), mainnet_nus.len());
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let testnet_activations = NetworkUpgrade::activation_list(Testnet);
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let testnet_heights: HashSet<&BlockHeight> = testnet_activations.keys().collect();
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assert_eq!(TESTNET_ACTIVATION_HEIGHTS.len(), testnet_heights.len());
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let testnet_nus: HashSet<&NetworkUpgrade> = testnet_activations.values().collect();
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assert_eq!(TESTNET_ACTIVATION_HEIGHTS.len(), testnet_nus.len());
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}
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#[test]
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fn activation_extremes_mainnet() {
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activation_extremes(Mainnet)
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}
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#[test]
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fn activation_extremes_testnet() {
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activation_extremes(Testnet)
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}
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/// Test the activation_list, activation_height, current, and next functions
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/// for `network` with extreme values.
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fn activation_extremes(network: Network) {
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// The first two upgrades are BeforeOverwinter and Overwinter
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assert_eq!(
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NetworkUpgrade::activation_list(network).get(&BlockHeight(0)),
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Some(&BeforeOverwinter)
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);
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assert_eq!(
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BeforeOverwinter.activation_height(network),
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Some(BlockHeight(0))
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);
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assert_eq!(
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NetworkUpgrade::current(network, BlockHeight(0)),
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BeforeOverwinter
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);
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assert_eq!(
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NetworkUpgrade::next(network, BlockHeight(0)),
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Some(Overwinter)
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);
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// We assume that the last upgrade we know about continues forever
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// (even if we suspect that won't be true)
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assert_ne!(
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NetworkUpgrade::activation_list(network).get(&BlockHeight::MAX),
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Some(&BeforeOverwinter)
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);
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assert_ne!(
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NetworkUpgrade::current(network, BlockHeight::MAX),
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BeforeOverwinter
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);
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assert_eq!(NetworkUpgrade::next(network, BlockHeight::MAX), None);
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}
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#[test]
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fn activation_consistent_mainnet() {
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activation_consistent(Mainnet)
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}
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#[test]
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fn activation_consistent_testnet() {
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activation_consistent(Testnet)
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}
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2020-07-22 19:52:57 -07:00
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/// Check that the activation_height, current, and next functions are consistent
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/// for `network`.
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2020-07-22 05:10:02 -07:00
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fn activation_consistent(network: Network) {
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let activation_list = NetworkUpgrade::activation_list(network);
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let network_upgrades: HashSet<&NetworkUpgrade> = activation_list.values().collect();
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for &network_upgrade in network_upgrades {
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let height = network_upgrade
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.activation_height(network)
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.expect("activations must have a height");
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assert_eq!(NetworkUpgrade::current(network, height), network_upgrade);
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// Network upgrades don't repeat
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assert_ne!(NetworkUpgrade::next(network, height), Some(network_upgrade));
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assert_ne!(
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NetworkUpgrade::next(network, BlockHeight(height.0 + 1)),
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Some(network_upgrade)
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);
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assert_ne!(
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NetworkUpgrade::next(network, BlockHeight::MAX),
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Some(network_upgrade)
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);
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}
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}
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2020-07-22 05:34:48 -07:00
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/// Check that the network upgrades and branch ids are unique.
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#[test]
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fn branch_id_bijective() {
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let branch_id_list = NetworkUpgrade::branch_id_list();
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let nus: HashSet<&NetworkUpgrade> = branch_id_list.keys().collect();
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assert_eq!(CONSENSUS_BRANCH_IDS.len(), nus.len());
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let branch_ids: HashSet<&ConsensusBranchId> = branch_id_list.values().collect();
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assert_eq!(CONSENSUS_BRANCH_IDS.len(), branch_ids.len());
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}
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#[test]
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fn branch_id_extremes_mainnet() {
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branch_id_extremes(Mainnet)
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}
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#[test]
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fn branch_id_extremes_testnet() {
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branch_id_extremes(Testnet)
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}
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/// Test the branch_id_list, branch_id, and current functions for `network` with
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/// extreme values.
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fn branch_id_extremes(network: Network) {
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// Branch ids were introduced in Overwinter
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assert_eq!(
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NetworkUpgrade::branch_id_list().get(&BeforeOverwinter),
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None
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);
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assert_eq!(ConsensusBranchId::current(network, BlockHeight(0)), None);
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assert_eq!(
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NetworkUpgrade::branch_id_list().get(&Overwinter).cloned(),
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Overwinter.branch_id()
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);
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// We assume that the last upgrade we know about continues forever
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// (even if we suspect that won't be true)
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assert_ne!(
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NetworkUpgrade::branch_id_list().get(&NetworkUpgrade::current(network, BlockHeight::MAX)),
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None
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);
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assert_ne!(ConsensusBranchId::current(network, BlockHeight::MAX), None);
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}
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#[test]
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fn branch_id_consistent_mainnet() {
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branch_id_consistent(Mainnet)
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}
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#[test]
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fn branch_id_consistent_testnet() {
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branch_id_consistent(Testnet)
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}
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/// Check that the branch_id and current functions are consistent for `network`.
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fn branch_id_consistent(network: Network) {
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let branch_id_list = NetworkUpgrade::branch_id_list();
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let network_upgrades: HashSet<&NetworkUpgrade> = branch_id_list.keys().collect();
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for &network_upgrade in network_upgrades {
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let height = network_upgrade.activation_height(network);
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// Skip network upgrades that don't have activation heights yet
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if let Some(height) = height {
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assert_eq!(
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ConsensusBranchId::current(network, height),
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network_upgrade.branch_id()
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);
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}
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}
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}
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