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poa-network-consensus-contracts

Build Status

Security Audit

Start POA network

  • Install npm dependencies npm i
  • Generate flat sources of contracts with the script ./make_flat.sh
  • We need a bytecode of PoaNetworkConsensus contract to add it to spec.json of the network.
    Go to scripts directory and run poa-bytecode.js: 
$ cd scripts
$ npm i
$ MASTER_OF_CEREMONY=0x0039F22efB07A647557C7C5d17854CFD6D489eF3 node poa-bytecode.js

It will show the bytecode of PoaNetworkConsensus contract. Copy the bytecode and paste it into spec.json.

Add Contracts to Parity UI.

Start Parity UI. In the contracts section press Develop button. Select 0.4.24 Solidity compiler version. Set Optimize to true.

  • In Parity UI Contracts tab choose watch custom contract. Paste bytecode and ABI of PoaNetworkConsensus contract from Remix.

Compile and deploy contracts in the next sequence:

  • ProxyStorage_flat.sol - Deploy ProxyStorage contract.
  • EternalStorageProxy_flat.sol - Deploy EternalStorageProxy contract with constructor parameters:
    _proxyStorage - equal to zero, _implementationAddress - address of ProxyStorage contract.
  • Make a call to ProxyStorage init with _poaConsensus parameter equal to the address of PoaNetworkConsensus contract, using the address of EternalStorageProxy and ABI of ProxyStorage.
  • Select PoaNetworkConsensus contract and call setProxyStorage with the address of ProxyStorage contract.
  • KeysManager_flat.sol - Deploy KeysManager contract.
  • EternalStorageProxy_flat.sol - Deploy EternalStorageProxy contract with constructor parameters:
    _proxyStorage - address of ProxyStorage contract, _implementationAddress - address of KeysManager contract.
  • Make a call to KeysManager init with _previousKeysManager parameter equal to 0x0000000000000000000000000000000000000000, using the address of EternalStorageProxy and ABI of KeysManager.
  • BallotsStorage_flat.sol - Deploy BallotsStorage contract.
  • EternalStorageProxy_flat.sol - Deploy EternalStorageProxy contract with constructor parameters:
    _proxyStorage - address of ProxyStorage contract, _implementationAddress - address of BallotsStorage contract.
  • Make a call to BallotsStorage init with _thresholds parameter equal to [3, 2], using the address of EternalStorageProxy and ABI of BallotsStorage.
  • VotingToChangeKeys_flat.sol - Deploy VotingToChangeKeys contract.
  • EternalStorageProxy_flat.sol - Deploy EternalStorageProxy contract with constructor parameters:
    _proxyStorage - address of ProxyStorage contract, _implementationAddress - address of VotingToChangeKeys contract.
  • Make a call to VotingToChangeKeys init with _minBallotDuration parameter equal to 172800, using the address of EternalStorageProxy and ABI of VotingToChangeKeys.
  • Make a call to VotingToChangeKeys migrateDisable, using the address of EternalStorageProxy and ABI of VotingToChangeKeys.
  • VotingToChangeMinThreshold_flat.sol - Deploy VotingToChangeMinThreshold contract.
  • EternalStorageProxy_flat.sol - Deploy EternalStorageProxy contract with constructor parameters:
    _proxyStorage - address of ProxyStorage contract, _implementationAddress - address of VotingToChangeMinThreshold contract.
  • Make a call to VotingToChangeMinThreshold init with _minBallotDuration parameter equal to 172800 and _minPossibleThreshold parameter equal to 3, using the address of EternalStorageProxy and ABI of VotingToChangeMinThreshold.
  • Make a call to VotingToChangeMinThreshold migrateDisable, using the address of EternalStorageProxy and ABI of VotingToChangeMinThreshold.
  • VotingToChangeProxyAddress_flat.sol - Deploy VotingToChangeProxyAddress contract.
  • EternalStorageProxy_flat.sol - Deploy EternalStorageProxy contract with constructor parameters:
    _proxyStorage - address of ProxyStorage contract, _implementationAddress - address of VotingToChangeProxyAddress contract.
  • Make a call to VotingToChangeProxyAddress init with _minBallotDuration parameter equal to 172800, using the address of EternalStorageProxy and ABI of VotingToChangeProxyAddress.
  • Make a call to VotingToChangeProxyAddress migrateDisable, using the address of EternalStorageProxy and ABI of VotingToChangeProxyAddress.
  • ValidatorMetadata_flat.sol - Deploy ValidatorMetadata contract.
  • EternalStorageProxy_flat.sol - Deploy EternalStorageProxy contract with constructor parameters:
    _proxyStorage - address of ProxyStorage contract, _implementationAddress - address of ValidatorMetadata contract.
  • VotingToManageEmissionFunds_flat.sol - Deploy VotingToManageEmissionFunds contract.
  • EternalStorageProxy_flat.sol - Deploy EternalStorageProxy contract with constructor parameters:
    _proxyStorage - address of ProxyStorage contract, _implementationAddress - address of VotingToManageEmissionFunds contract.
  • EmissionFunds_flat.sol - Deploy EmissionFunds contract with constructor parameter _votingToManageEmissionFunds equal to EternalStorageProxy address of VotingToManageEmissionFunds contract.
  • RewardByBlock_flat.sol - Deploy RewardByBlock contract and replace emissionFunds constant value 0x00... inside it with the address of deployed EmissionFunds. Then deploy RewardByBlock.
  • EternalStorageProxy_flat.sol - Deploy EternalStorageProxy contract with constructor parameters:
    _proxyStorage - address of ProxyStorage contract, _implementationAddress - address of RewardByBlock contract.
  • Make a call to VotingToManageEmissionFunds init, using the address of EternalStorageProxy and ABI of VotingToManageEmissionFunds, with the next parameters:
    _emissionFunds - address of EmissionFunds contract, _emissionReleaseTime - your emission release unix timestamp, _emissionReleaseThreshold - your emission release threshold in seconds, _distributionThreshold - your distribution threshold in seconds.
  • Select deployed ProxyStorage contract and make a call from MoC address to initializeAddresses with relevant addresses.

Unit tests

Full Test Report

  Contract: BallotsStorage [all features]
    #init
      ✓ prevent from double init
      ✓ thresholds are correct (40ms)
    #migrate
      ✓ should copy thresholds from an old contract (282ms)
    #setThreshold
      ✓ can only be called from votingToChangeThreshold address (66ms)
      ✓ cannot be set for Invalid threshold (200ms)
      ✓ new value cannot be equal to 0 (124ms)
      ✓ sets new value for Keys threshold (57ms)
      ✓ sets new value for MetadataChange threshold (71ms)
    #getProxyThreshold
      ✓ return value is correct (392ms)
      ✓ return value is correct if MoC is removed (1286ms)
    #getVotingToChangeThreshold
      ✓ returns voting to change min threshold address (71ms)
    #getBallotLimitPerValidator
      ✓ returns correct limit (253ms)
      ✓ returns correct limit if MoC is removed (1044ms)
    #upgradeTo
      ✓ may only be called by ProxyStorage (131ms)
      ✓ should change implementation address (145ms)
      ✓ should increment implementation version (125ms)
      ✓ new implementation should work (156ms)
      ✓ new implementation should use the same proxyStorage address (121ms)
      ✓ new implementation should use the same storage (157ms)
  Contract: BallotsStorage upgraded [all features]
    #init
      ✓ prevent from double init
      ✓ thresholds are correct
    #migrate
      ✓ should copy thresholds from an old contract (222ms)
    #setThreshold
      ✓ can only be called from votingToChangeThreshold address (58ms)
      ✓ cannot be set for Invalid threshold (181ms)
      ✓ new value cannot be equal to 0 (138ms)
      ✓ sets new value for Keys threshold (53ms)
      ✓ sets new value for MetadataChange threshold (66ms)
    #getProxyThreshold
      ✓ return value is correct (370ms)
      ✓ return value is correct if MoC is removed (1220ms)
    #getVotingToChangeThreshold
      ✓ returns voting to change min threshold address (51ms)
    #getBallotLimitPerValidator
      ✓ returns correct limit (243ms)
      ✓ returns correct limit if MoC is removed (1079ms)
  Contract: EmissionFunds [all features]
    constructor
      ✓ should save VotingToManageEmissionFunds address
    #fallback
      ✓ should receive funds (327ms)
    #sendFundsTo
      ✓ may only be called by VotingToManageEmissionFunds (39ms)
      ✓ should send funds to receiver (332ms)
      ✓ should send entire amount (339ms)
      ✓ should not send funds if amount greater than balance (319ms)
      ✓ should not send funds if amount is too much (312ms)
      ✓ should be fulfilled if receiver is 0x0 (168ms)
      ✓ should be fulfilled if amount is zero (328ms)
      ✓ should fail if receiver address is not full (664ms)
    #burnFunds
      ✓ may only be called by VotingToManageEmissionFunds
      ✓ should burn funds (163ms)
      ✓ should burn entire amount (165ms)
      ✓ should not burn funds if amount greater than balance (165ms)
      ✓ should not burn funds if amount is too much (263ms)
      ✓ should be fulfilled if amount is zero (159ms)
    #freezeFunds
      ✓ may only be called by VotingToManageEmissionFunds (45ms)
      ✓ should freeze funds (168ms)
      ✓ should be fulfilled if amount is zero (159ms)
  Contract: EternalStorageProxy [all features]
    constructor
      ✓ should revert if implementation address is equal to 0x0
      ✓ should allow ProxyStorage address equal to 0x0 (53ms)
      ✓ should set ProxyStorage address (52ms)
      ✓ should set implementation address (61ms)
      ✓ should set owner (42ms)
    #renounceOwnership
      ✓ may only be called by an owner
      ✓ should set owner to 0x0
    #transferOwnership
      ✓ may only be called by an owner (129ms)
      ✓ should change owner
      ✓ should not change owner if its address is 0x0
    #upgradeTo
      ✓ may only be called by ProxyStorage (41ms)
      ✓ should not change implementation address if it is the same
      ✓ should not change implementation address if it is 0x0
      ✓ should change implementation address
      ✓ should increment version (53ms)
  Contract: KeysManager [all features]
    #constructor
      ✓ sets masterOfCeremony, proxyStorage, poaConsensus (133ms)
      ✓ adds masterOfCeremony to validators hash
      ✓ cannot be called twice
    #initiateKeys
      ✓ can only be called by master of ceremony (104ms)
      ✓ cannot allow 0x0 addresses (57ms)
      ✓ should not allow to initialize already initialized key (74ms)
      ✓ should not allow to initialize already initialized key after validator created mining key (172ms)
      ✓ should not equal to master of ceremony
      ✓ should not allow to initialize more than maxNumberOfInitialKeys (595ms)
      ✓ should increment initialKeyCount by 1 (80ms)
      ✓ should set initialKeys hash to activated status (103ms)
    #createKeys
      ✓ should only be called from initialized key (162ms)
      ✓ params should not be equal to 0x0 (209ms)
      ✓ params should not be equal to each other (138ms)
      ✓ any of params should not be equal to initialKey (231ms)
      ✓ should not allow passing the same key after it is already created (355ms)
      ✓ should assign mining, voting, payout keys to relative mappings (184ms)
      ✓ should assign voting <-> mining key and payout <-> mining key relationships (156ms)
      ✓ adds validator to poaConsensus contract (156ms)
      ✓ should set validatorKeys hash (149ms)
      ✓ should set validatorKeys hash (148ms)
    #addMiningKey
      ✓ may only be called if KeysManager.init had been called before (85ms)
      ✓ should only be called from votingToChangeKeys (111ms)
      ✓ should not let add more than maxLimit (64ms)
      ✓ should set validatorKeys hash (92ms)
    #addVotingKey
      ✓ may only be called if KeysManager.init had been called before (125ms)
      ✓ may only be called if params are not the same (150ms)
      ✓ should add VotingKey (165ms)
      ✓ should only be called if mining is active (239ms)
      ✓ swaps keys if voting already exists (236ms)
    #addPayoutKey
      ✓ may only be called if KeysManager.init had been called before (132ms)
      ✓ may only be called if params are not the same (147ms)
      ✓ should add PayoutKey (175ms)
      ✓ should only be called if mining is active (321ms)
      ✓ swaps keys if voting already exists (252ms)
    #removeMiningKey
      ✓ may only be called if KeysManager.init had been called before (183ms)
      ✓ should remove miningKey (667ms)
      ✓ removes validator from poaConsensus (331ms)
      ✓ removes MoC from poaConsensus (1040ms)
      ✓ should still enforce removal of votingKey to 0x0 even if voting key did not exist (299ms)
    #removeVotingKey
      ✓ may only be called if KeysManager.init had been called before (208ms)
      ✓ should be successful only for active voting key (245ms)
      ✓ should remove votingKey (283ms)
    #removePayoutKey
      ✓ may only be called if KeysManager.init had been called before (215ms)
      ✓ should be successful only for active payout key (257ms)
      ✓ should remove payoutKey (274ms)
    #swapMiningKey
      ✓ should swap mining key (702ms)
      ✓ should swap MoC (352ms)
      ✓ should keep voting and payout keys (531ms)
    #swapVotingKey
      ✓ should swap voting key (221ms)
    #swapPayoutKey
      ✓ should swap payout key (256ms)
    #migrateInitialKey
      ✓ can copy initial keys (390ms)
    #migrateMiningKey
      ✓ copies validator keys (1208ms)
      ✓ throws when trying to copy invalid mining key (208ms)
    #upgradeTo
      ✓ may only be called by ProxyStorage (99ms)
      ✓ should change implementation address (174ms)
      ✓ should increment implementation version (89ms)
      ✓ new implementation should work (123ms)
      ✓ new implementation should use the same proxyStorage address (186ms)
      ✓ new implementation should use the same storage (324ms)
  Contract: KeysManager upgraded [all features]
    #constructor
      ✓ sets masterOfCeremony, proxyStorage, poaConsensus (169ms)
      ✓ adds masterOfCeremony to validators hash
      ✓ cannot be called twice
    #initiateKeys
      ✓ can only be called by master of ceremony (81ms)
      ✓ cannot allow 0x0 addresses (64ms)
      ✓ should not allow to initialize already initialized key (87ms)
      ✓ should not allow to initialize already initialized key after validator created mining key (185ms)
      ✓ should not equal to master of ceremony (44ms)
      ✓ should not allow to initialize more than maxNumberOfInitialKeys (674ms)
      ✓ should increment initialKeyCount by 1 (82ms)
      ✓ should set initialKeys hash to activated status (100ms)
    #createKeys
      ✓ should only be called from initialized key (182ms)
      ✓ params should not be equal to 0x0 (246ms)
      ✓ params should not be equal to each other (149ms)
      ✓ any of params should not be equal to initialKey (152ms)
      ✓ should not allow passing the same key after it is already created (380ms)
      ✓ should assign mining, voting, payout keys to relative mappings (171ms)
      ✓ should assign voting <-> mining key and payout <-> mining key relationships (187ms)
      ✓ adds validator to poaConsensus contract (154ms)
      ✓ should set validatorKeys hash (165ms)
      ✓ should set validatorKeys hash (247ms)
    #addMiningKey
      ✓ may only be called if KeysManager.init had been called before (88ms)
      ✓ should only be called from votingToChangeKeys (122ms)
      ✓ should not let add more than maxLimit (50ms)
      ✓ should set validatorKeys hash (108ms)
    #addVotingKey
      ✓ may only be called if KeysManager.init had been called before (117ms)
      ✓ may only be called if params are not the same (156ms)
      ✓ should add VotingKey (179ms)
      ✓ should only be called if mining is active (239ms)
      ✓ swaps keys if voting already exists (238ms)
    #addPayoutKey
      ✓ may only be called if KeysManager.init had been called before (145ms)
      ✓ may only be called if params are not the same (143ms)
      ✓ should add PayoutKey (169ms)
      ✓ should only be called if mining is active (344ms)
      ✓ swaps keys if voting already exists (251ms)
    #removeMiningKey
      ✓ may only be called if KeysManager.init had been called before (181ms)
      ✓ should remove miningKey (707ms)
      ✓ removes validator from poaConsensus (348ms)
      ✓ removes MoC from poaConsensus (1048ms)
      ✓ should still enforce removal of votingKey to 0x0 even if voting key did not exist (308ms)
    #removeVotingKey
      ✓ may only be called if KeysManager.init had been called before (216ms)
      ✓ should be successful only for active voting key (229ms)
      ✓ should remove votingKey (377ms)
    #removePayoutKey
      ✓ may only be called if KeysManager.init had been called before (206ms)
      ✓ should be successful only for active payout key (231ms)
      ✓ should remove payoutKey (260ms)
    #swapMiningKey
      ✓ should swap mining key (737ms)
      ✓ should swap MoC (384ms)
      ✓ should keep voting and payout keys (523ms)
    #swapVotingKey
      ✓ should swap voting key (230ms)
    #swapPayoutKey
      ✓ should swap payout key (283ms)
    #migrateInitialKey
      ✓ can copy initial keys (445ms)
    #migrateMiningKey
      ✓ copies validator keys (1228ms)
      ✓ throws when trying to copy invalid mining key (205ms)
  Contract: ValidatorMetadata [all features]
    #createMetadata
      ✓ happy path (170ms)
      ✓ should not let create metadata if fullAddress is too long (200ms)
      ✓ should not let create metadata if called by non-voting key (86ms)
      ✓ should not let create metadata if called second time (153ms)
    #clearMetadata
      ✓ happy path (770ms)
    #moveMetadata
      ✓ happy path (1142ms)
    #initMetadata
      ✓ happy path (441ms)
    #changeRequest
      ✓ happy path (248ms)
      ✓ should not let call if there is no metadata
      ✓ resets confirmations when changeRequest recreated (515ms)
    #cancelPendingChange
      ✓ happy path (473ms)
      ✓ should not let delete records for someone else miningKey (490ms)
    #confirmPendingChange
      ✓ should not let confirm your own changes (236ms)
      ✓ should confirm changes (316ms)
      ✓ prevent from double voting (337ms)
      ✓ should not exceed confirmations limit (577ms)
    #finalize
      ✓ happy path (758ms)
    #getMinThreshold
      ✓ returns default value
    #upgradeTo
      ✓ may only be called by ProxyStorage (82ms)
      ✓ should change implementation address (79ms)
      ✓ should increment implementation version (80ms)
      ✓ new implementation should work (120ms)
      ✓ new implementation should use the same proxyStorage address (80ms)
      ✓ new implementation should use the same storage (321ms)
  Contract: ValidatorMetadata upgraded [all features]
    #createMetadata
      ✓ happy path (169ms)
      ✓ should not let create metadata if fullAddress is too long (210ms)
      ✓ should not let create metadata if called by non-voting key (88ms)
      ✓ should not let create metadata if called second time (145ms)
    #clearMetadata
      ✓ happy path (677ms)
    #moveMetadata
      ✓ happy path (1014ms)
    #initMetadata
      ✓ happy path (553ms)
    #changeRequest
      ✓ happy path (165ms)
      ✓ should not let call if there is no metadata
      ✓ resets confirmations when changeRequest recreated (495ms)
    #cancelPendingChange
      ✓ happy path (586ms)
      ✓ should not let delete records for someone else miningKey (490ms)
    #confirmPendingChange
      ✓ should not let confirm your own changes (415ms)
      ✓ should confirm changes (310ms)
      ✓ prevent from double voting (383ms)
      ✓ should not exceed confirmations limit (608ms)
    #finalize
      ✓ happy path (760ms)
    #getMinThreshold
      ✓ returns default value
  Contract: PoaNetworkConsensus [all features]
    default values
      ✓ finalized should be false
      ✓ checks systemAddress
      ✓ allows you to set current list of validators (87ms)
      ✓ validators in the list must differ (129ms)
    #finalizeChange
      ✓ should only be called by systemAddress (79ms)
      ✓ should set finalized to true (73ms)
      ✓ should set currentValidators to pendingList (78ms)
      ✓ set currentValidators to pendingList after addValidator call (301ms)
    #addValidator
      ✓ should only be called from keys manager (63ms)
      ✓ should not allow to add already existing validator (78ms)
      ✓ should not allow 0x0 addresses (74ms)
      ✓ should set validatorsState for new validator (80ms)
      ✓ should set finalized to false (72ms)
      ✓ should emit InitiateChange with blockhash and pendingList as params (284ms)
    #swapValidatorKey
      ✓ should swap validator key (294ms)
      ✓ should swap MoC (271ms)
    #removeValidator
      ✓ should remove validator (95ms)
      ✓ should remove MoC (249ms)
      ✓ should only be called from keys manager (112ms)
      ✓ should only be allowed to remove from existing set of validators (46ms)
      ✓ should decrease length of pendingList (258ms)
      ✓ should change validatorsState (100ms)
      ✓ should set finalized to false (114ms)
    #setProxyStorage
      ✓ can be called by MoC (62ms)
      ✓ can be called by owner (67ms)
      ✓ can only be called once
      ✓ cannot be set to 0x0 address
      ✓ sets proxyStorage (51ms)
      ✓ sets wasProxyStorageSet (47ms)
      ✓ emits MoCInitializedProxyStorage (38ms)
      ✓ #getKeysManager (58ms)
    #isValidator
      ✓ returns true for validator
    #isValidatorFinalized
      ✓ returns true for finalized validator (1654ms)
  Contract: ProxyStorage [all features]
    #constructor
      ✓ sets PoA
    #initializeAddresses
      ✓ sets all addresses (158ms)
      ✓ prevents Moc to call it more than once (89ms)
    #setContractAddress
      ✓ can only be called from votingToChangeProxy address (93ms)
      ✓ cannot be set to 0x0 address (69ms)
      ✓ sets keysManager (142ms)
      ✓ sets votingToChangeKeys (154ms)
      ✓ sets votingToChangeMinThreshold (253ms)
      ✓ sets ballotsStorage (142ms)
      ✓ sets poaConsensus (81ms)
      ✓ sets validatorMetadata (227ms)
      ✓ changes proxyStorage (itself) implementation (205ms)
    #upgradeTo
      ✓ may only be called by ProxyStorage (itself) (119ms)
      ✓ should change implementation address (115ms)
      ✓ should increment implementation version (127ms)
      ✓ new implementation should work (168ms)
      ✓ new implementation should use the same storage (182ms)
  Contract: ProxyStorage upgraded [all features]
    #constructor
      ✓ sets PoA
    #initializeAddresses
      ✓ sets all addresses (165ms)
      ✓ prevents Moc to call it more than once (81ms)
    #setContractAddress
      ✓ can only be called from votingToChangeProxy address (180ms)
      ✓ cannot be set to 0x0 address (67ms)
      ✓ sets keysManager (158ms)
      ✓ sets votingToChangeKeys (163ms)
      ✓ sets votingToChangeMinThreshold (144ms)
      ✓ sets ballotsStorage (253ms)
      ✓ sets poaConsensus (81ms)
      ✓ sets validatorMetadata (172ms)
      ✓ changes proxyStorage (itself) implementation (145ms)
  Contract: RewardByBlock [all features]
    #reward
      ✓ may only be called by system address (94ms)
      ✓ should revert if input array contains more than one item
      ✓ should revert if lengths of input arrays are not equal (38ms)
      ✓ should revert if `kind` parameter is not 0
      ✓ should revert if mining key does not exist (252ms)
      ✓ should assign rewards to payout key and EmissionFunds (88ms)
      ✓ should assign reward to mining key if payout key is 0 (143ms)
      ✓ should assign rewards to extra receivers and clear extra receivers list (369ms)
    #addExtraReceiver
      ✓ may only be called by bridge contract (59ms)
      ✓ should revert if receiver address is 0x0
      ✓ should revert if amount is 0 (39ms)
      ✓ can only be called once for the same recipient (79ms)
      ✓ should add receivers (214ms)
    #upgradeTo
      ✓ may only be called by ProxyStorage (111ms)
      ✓ should change implementation address (111ms)
      ✓ should increment implementation version (116ms)
      ✓ new implementation should work (154ms)
      ✓ new implementation should use the same proxyStorage address (112ms)
  Contract: RewardByBlock upgraded [all features]
    #reward
      ✓ may only be called by system address (89ms)
      ✓ should revert if input array contains more than one item
      ✓ should revert if lengths of input arrays are not equal (46ms)
      ✓ should revert if `kind` parameter is not 0 (48ms)
      ✓ should revert if mining key does not exist (246ms)
      ✓ should assign rewards to payout key and EmissionFunds (81ms)
      ✓ should assign reward to mining key if payout key is 0 (121ms)
      ✓ should assign rewards to extra receivers and clear extra receivers list (421ms)
    #addExtraReceiver
      ✓ may only be called by bridge contract (68ms)
      ✓ should revert if receiver address is 0x0 (45ms)
      ✓ should revert if amount is 0 (47ms)
      ✓ can only be called once for the same recipient (72ms)
      ✓ should add receivers (199ms)
  Contract: RewardByTime [all features]
    #reward
      ✓ may only be called by system address (152ms)
      ✓ should assign rewards to payout keys and EmissionFunds (3292ms)
      ✓ should work fine after some validators are removed and added (1355ms)
    #upgradeTo
      ✓ may only be called by ProxyStorage (108ms)
      ✓ should change implementation address (111ms)
      ✓ should increment implementation version (112ms)
      ✓ new implementation should work (259ms)
      ✓ new implementation should use the same proxyStorage address (113ms)
  Contract: RewardByTime upgraded [all features]
    #reward
      ✓ may only be called by system address (150ms)
      ✓ should assign rewards to payout keys and EmissionFunds (3160ms)
      ✓ should work fine after some validators are removed and added (1459ms)
  Contract: Voting to change keys [all features]
    #createBallot
      ✓ happy path (705ms)
      ✓ should not let create voting with invalid duration (170ms)
      ✓ should not let add votingKey for MoC (416ms)
      ✓ should not let add votingKey for 0x0 (447ms)
      ✓ should not let add payoutKey for 0x0 (588ms)
      ✓ should not let create more ballots than the limit (10140ms)
    #createBallotToAddNewValidator
      ✓ happy path (296ms)
      ✓ deny adding already existed voting key
      ✓ deny adding already existed payout key (199ms)
      ✓ should create validator with all keys after finalization (1282ms)
      ✓ should allow removing new validator if finalizeChange did not happen (2249ms)
    #vote
      ✓ should let a validator to vote (194ms)
      ✓ reject vote should be accepted (199ms)
      ✓ should allow multiple voters to vote (875ms)
      ✓ should not let vote nonVoting key (57ms)
      ✓ should not let vote before startTime key (102ms)
      ✓ should not let vote after endTime key (97ms)
      ✓ should not let vote with already voted key (271ms)
      ✓ should not let vote with invalid choice (267ms)
      ✓ should not let vote with invalid id (170ms)
    #finalize
      ✓ happy path - no action since it did not meet minimum number of totalVoters (803ms)
      ✓ finalize addition of payout key (933ms)
      ✓ finalize addition of VotingKey (1027ms)
      ✓ cannot create ballot for using previous mining key (2257ms)
      ✓ finalize addition of MiningKey (1144ms)
      ✓ finalize removal of MiningKey (2097ms)
      ✓ finalize removal of VotingKey (1237ms)
      ✓ finalize removal of PayoutKey (1178ms)
      ✓ finalize swap of VotingKey (1216ms)
      ✓ finalize swap of PayoutKey (1178ms)
      ✓ finalize swap of MiningKey (1373ms)
      ✓ prevent double finalize (1841ms)
      ✓ allowed at once after all validators gave their votes (1730ms)
    #migrate
      ✓ should copy a ballot to the new contract (2013ms)
    #upgradeTo
      ✓ may only be called by ProxyStorage (98ms)
      ✓ should change implementation address (101ms)
      ✓ should increment implementation version (98ms)
      ✓ new implementation should work (148ms)
      ✓ new implementation should use the same proxyStorage address (186ms)
      ✓ new implementation should use the same storage (963ms)
  Contract: Voting to change keys upgraded [all features]
    #createBallot
      ✓ happy path (782ms)
      ✓ should not let create voting with invalid duration (187ms)
      ✓ should not let add votingKey for MoC (624ms)
      ✓ should not let add votingKey for 0x0 (518ms)
      ✓ should not let add payoutKey for 0x0 (480ms)
      ✓ should not let create more ballots than the limit (10430ms)
    #createBallotToAddNewValidator
      ✓ happy path (316ms)
      ✓ deny adding already existed voting key
      ✓ deny adding already existed payout key (227ms)
      ✓ should create validator with all keys after finalization (1418ms)
      ✓ should allow removing new validator if finalizeChange did not happen (2165ms)
    #vote
      ✓ should let a validator to vote (190ms)
      ✓ reject vote should be accepted (196ms)
      ✓ should allow multiple voters to vote (831ms)
      ✓ should not let vote nonVoting key (57ms)
      ✓ should not let vote before startTime key (93ms)
      ✓ should not let vote after endTime key (94ms)
      ✓ should not let vote with already voted key (191ms)
      ✓ should not let vote with invalid choice (179ms)
      ✓ should not let vote with invalid id (173ms)
    #finalize
      ✓ happy path - no action since it did not meet minimum number of totalVoters (830ms)
      ✓ finalize addition of payout key (910ms)
      ✓ finalize addition of VotingKey (1022ms)
      ✓ cannot create ballot for using previous mining key (2234ms)
      ✓ finalize addition of MiningKey (1023ms)
      ✓ finalize removal of MiningKey (2017ms)
      ✓ finalize removal of VotingKey (1237ms)
      ✓ finalize removal of PayoutKey (1142ms)
      ✓ finalize swap of VotingKey (1172ms)
      ✓ finalize swap of PayoutKey (1155ms)
      ✓ finalize swap of MiningKey (1503ms)
      ✓ prevent double finalize (1828ms)
      ✓ allowed at once after all validators gave their votes (1722ms)
    #migrate
      ✓ should copy a ballot to the new contract (2024ms)
  Contract: VotingToChangeMinThreshold [all features]
    #createBallot
      ✓ happy path (377ms)
      ✓ proposed value should be more than or equal to 3
      ✓ proposed value should not be equal to the same value
      ✓ should not let create more ballots than the limit (10284ms)
    #vote
      ✓ should let a validator to vote (181ms)
      ✓ reject vote should be accepted (407ms)
      ✓ should allow multiple voters to vote (422ms)
      ✓ should not let vote nonVoting key (69ms)
      ✓ should not let vote before startTime key (91ms)
      ✓ should not let vote after endTime key (95ms)
      ✓ should not let vote with already voted key (209ms)
      ✓ should not let vote with invalid choice (166ms)
      ✓ should not let vote with invalid id (169ms)
    #finalize
      ✓ does not change if it did not pass minimum threshold (561ms)
      ✓ should change to proposedValue when quorum is reached (1253ms)
      ✓ prevents double finalize (1671ms)
      ✓ allowed at once after all validators gave their votes (2039ms)
      ✓ should decrease validator limit only once when calling finalize more than once (1589ms)
    #migrate
      ✓ should copy a ballot to the new contract (1495ms)
    #upgradeTo
      ✓ may only be called by ProxyStorage (77ms)
      ✓ should change implementation address (93ms)
      ✓ should increment implementation version (91ms)
      ✓ new implementation should work (120ms)
      ✓ new implementation should use the same proxyStorage address (89ms)
      ✓ new implementation should use the same storage (585ms)
  Contract: VotingToChangeMinThreshold upgraded [all features]
    #createBallot
      ✓ happy path (271ms)
      ✓ proposed value should be more than or equal to 3 (133ms)
      ✓ proposed value should not be equal to the same value
      ✓ should not let create more ballots than the limit (10305ms)
    #vote
      ✓ should let a validator to vote (194ms)
      ✓ reject vote should be accepted (190ms)
      ✓ should allow multiple voters to vote (481ms)
      ✓ should not let vote nonVoting key (51ms)
      ✓ should not let vote before startTime key (108ms)
      ✓ should not let vote after endTime key (108ms)
      ✓ should not let vote with already voted key (193ms)
      ✓ should not let vote with invalid choice (182ms)
      ✓ should not let vote with invalid id (262ms)
    #finalize
      ✓ does not change if it did not pass minimum threshold (560ms)
      ✓ should change to proposedValue when quorum is reached (1312ms)
      ✓ prevents double finalize (1806ms)
      ✓ allowed at once after all validators gave their votes (2331ms)
      ✓ should decrease validator limit only once when calling finalize more than once (1595ms)
    #migrate
      ✓ should copy a ballot to the new contract (1508ms)
  Contract: VotingToChangeProxyAddress [all features]
    #createBallot
      ✓ happy path (278ms)
      ✓ proposed address should not be 0x0
      ✓ can create multiple ballots (489ms)
      ✓ should not let create more ballots than the limit (9893ms)
    #vote
      ✓ should let a validator to vote (183ms)
      ✓ reject vote should be accepted (284ms)
      ✓ should allow multiple voters to vote (852ms)
      ✓ should not let vote nonVoting key (52ms)
      ✓ should not let vote before startTime key (103ms)
      ✓ should not let vote after endTime key (97ms)
      ✓ should not let vote with already voted key (195ms)
      ✓ should not let vote with invalid choice (181ms)
      ✓ should not let vote with invalid id (180ms)
    #finalize
      ✓ does not change if it did not pass minimum threshold (598ms)
      ✓ should change KeysManager implementation (920ms)
      ✓ should change VotingToChangeKeys implementation (1053ms)
      ✓ should change VotingToChangeMinThreshold implementation (995ms)
      ✓ should change VotingToChangeProxy implementation (1083ms)
      ✓ should change BallotsStorage implementation (1075ms)
      ✓ should change ValidatorMetadata implementation (1062ms)
      ✓ should change ProxyStorage implementation (1068ms)
      ✓ prevents double finalize (1513ms)
      ✓ allowed at once after all validators gave their votes (1768ms)
    #migrate
      ✓ should copy a ballot to the new contract (1995ms)
    #upgradeTo
      ✓ may only be called by ProxyStorage (88ms)
      ✓ should change implementation address (87ms)
      ✓ should increment implementation version (113ms)
      ✓ new implementation should work (139ms)
      ✓ new implementation should use the same proxyStorage address (86ms)
      ✓ new implementation should use the same storage (620ms)
  Contract: VotingToChangeProxyAddress upgraded [all features]
    #createBallot
      ✓ happy path (395ms)
      ✓ proposed address should not be 0x0 (119ms)
      ✓ can create multiple ballots (394ms)
      ✓ should not let create more ballots than the limit (10105ms)
    #vote
      ✓ should let a validator to vote (179ms)
      ✓ reject vote should be accepted (194ms)
      ✓ should allow multiple voters to vote (805ms)
      ✓ should not let vote nonVoting key (55ms)
      ✓ should not let vote before startTime key (103ms)
      ✓ should not let vote after endTime key (213ms)
      ✓ should not let vote with already voted key (224ms)
      ✓ should not let vote with invalid choice (225ms)
      ✓ should not let vote with invalid id (196ms)
    #finalize
      ✓ does not change if it did not pass minimum threshold (684ms)
      ✓ should change KeysManager implementation (1177ms)
      ✓ should change VotingToChangeKeys implementation (1182ms)
      ✓ should change VotingToChangeMinThreshold implementation (1065ms)
      ✓ should change VotingToChangeProxy implementation (1115ms)
      ✓ should change BallotsStorage implementation (985ms)
      ✓ should change ValidatorMetadata implementation (1082ms)
      ✓ should change ProxyStorage implementation (1080ms)
      ✓ prevents double finalize (1522ms)
      ✓ allowed at once after all validators gave their votes (1686ms)
    #migrate
      ✓ should copy a ballot to the new contract (2022ms)
  Contract: VotingToManageEmissionFunds [all features]
    #init
      ✓ should change state correctly (119ms)
      ✓ cannot be called more than once
    #createBallot
      ✓ happy path (866ms)
      ✓ may only be called by valid voting key (139ms)
      ✓ endTime must be greater than startTime
      ✓ startTime must be greater than current time (39ms)
      ✓ cannot be called before emission release time (64ms)
      ✓ ballot cannot last longer than distribution threshold (55ms)
      ✓ receiver address should not be 0x0 (64ms)
      ✓ cannot create multiple ballots during the same distribution period (435ms)
      ✓ should allow creating new ballot after the next emission release threshold (490ms)
    #cancelNewBallot
      ✓ happy path (880ms)
      ✓ cannot cancel nonexistent or finalized ballot (341ms)
      ✓ may only be called by creator of a ballot (232ms)
      ✓ may only be called within ballot canceling threshold (265ms)
      ✓ cannot cancel already cancelled ballot (221ms)
      ✓ should restore emission release time (493ms)
    #refreshEmissionReleaseTime
      ✓ should not update until the next threshold (130ms)
      ✓ should update to the next threshold (72ms)
      ✓ should update to the future threshold (86ms)
    #vote
      ✓ should let a validator to vote (959ms)
      ✓ should allow multiple voters to vote (1497ms)
      ✓ should not let vote by nonvoting key (57ms)
      ✓ should not let vote before startTime (94ms)
      ✓ should not let vote after endTime (260ms)
      ✓ should not let vote with already voted key (207ms)
      ✓ should not let vote with invalid choice (152ms)
      ✓ should not let vote with invalid id (164ms)
      ✓ should not let vote if already finalized (1535ms)
      ✓ should not let vote with old miningKey (2431ms)
      ✓ should not let vote if ballot is canceled (256ms)
    #finalize
      ✓ happy path (591ms)
      ✓ freeze funds if it did not pass minimum voters count (1036ms)
      ✓ freeze funds if there is no majority of 3 votes (1322ms)
      ✓ freeze funds if there is no majority of 4 votes (1678ms)
      ✓ send funds to receiver if most votes are for sending (2089ms)
      ✓ send funds to receiver if most votes are for sending (1749ms)
      ✓ burn funds if most votes are for burning (1704ms)
      ✓ prevents finalize with invalid id (280ms)
      ✓ do not let finalize if a ballot is active (189ms)
      ✓ finalize immediately if the last validator gave his vote (1187ms)
      ✓ does not finalize immediately until ballot canceling threshold is reached (1236ms)
      ✓ prevents double finalize (279ms)
      ✓ should refresh emission release time (256ms)
      ✓ deny finalization if the voting key is a contract (703ms)
      ✓ deny finalization within ballot canceling threshold (301ms)
      ✓ deny finalization of canceled ballot (461ms)
    #upgradeTo
      ✓ may only be called by ProxyStorage (91ms)
      ✓ should change implementation address (92ms)
      ✓ should increment implementation version (91ms)
      ✓ new implementation should work (129ms)
      ✓ new implementation should use the same proxyStorage address (92ms)
      ✓ new implementation should use the same storage (960ms)
  Contract: VotingToManageEmissionFunds upgraded [all features]
    #init
      ✓ should change state correctly (111ms)
      ✓ cannot be called more than once
    #createBallot
      ✓ happy path (835ms)
      ✓ may only be called by valid voting key (142ms)
      ✓ endTime must be greater than startTime (45ms)
      ✓ startTime must be greater than current time (126ms)
      ✓ cannot be called before emission release time (64ms)
      ✓ ballot cannot last longer than distribution threshold (41ms)
      ✓ receiver address should not be 0x0 (52ms)
      ✓ cannot create multiple ballots during the same distribution period (467ms)
      ✓ should allow creating new ballot after the next emission release threshold (464ms)
    #cancelNewBallot
      ✓ happy path (878ms)
      ✓ cannot cancel nonexistent or finalized ballot (300ms)
      ✓ may only be called by creator of a ballot (290ms)
      ✓ may only be called within ballot canceling threshold (250ms)
      ✓ cannot cancel already cancelled ballot (244ms)
      ✓ should restore emission release time (601ms)
    #refreshEmissionReleaseTime
      ✓ should not update until the next threshold (129ms)
      ✓ should update to the next threshold (273ms)
      ✓ should update to the future threshold (72ms)
    #vote
      ✓ should let a validator to vote (842ms)
      ✓ should allow multiple voters to vote (1572ms)
      ✓ should not let vote by nonvoting key (60ms)
      ✓ should not let vote before startTime (89ms)
      ✓ should not let vote after endTime (253ms)
      ✓ should not let vote with already voted key (202ms)
      ✓ should not let vote with invalid choice (173ms)
      ✓ should not let vote with invalid id (155ms)
      ✓ should not let vote if already finalized (1404ms)
      ✓ should not let vote with old miningKey (2283ms)
      ✓ should not let vote if ballot is canceled (152ms)
    #finalize
      ✓ happy path (569ms)
      ✓ freeze funds if it did not pass minimum voters count (1142ms)
      ✓ freeze funds if there is no majority of 3 votes (1393ms)
      ✓ freeze funds if there is no majority of 4 votes (1872ms)
      ✓ send funds to receiver if most votes are for sending (2304ms)
      ✓ send funds to receiver if most votes are for sending (1816ms)
      ✓ burn funds if most votes are for burning (1898ms)
      ✓ prevents finalize with invalid id (209ms)
      ✓ do not let finalize if a ballot is active (211ms)
      ✓ finalize immediately if the last validator gave his vote (1281ms)
      ✓ does not finalize immediately until ballot canceling threshold is reached (1316ms)
      ✓ prevents double finalize (292ms)
      ✓ should refresh emission release time (265ms)
      ✓ deny finalization if the voting key is a contract (737ms)
      ✓ deny finalization within ballot canceling threshold (305ms)
      ✓ deny finalization of canceled ballot (284ms)
  598 passing (18m)