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@ -2,6 +2,8 @@ package test |
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import ( |
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"context" |
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"encoding/binary" |
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"encoding/json" |
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"fmt" |
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"math/big" |
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"time" |
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@ -13,67 +15,273 @@ import ( |
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"github.com/hermeznetwork/hermez-node/log" |
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"github.com/hermeznetwork/hermez-node/utils" |
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"github.com/iden3/go-iden3-crypto/babyjub" |
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"github.com/mitchellh/copystructure" |
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) |
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// RollupBlock stores all the data related to the Rollup SC from an ethereum block
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type RollupBlock struct { |
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State eth.RollupState |
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Vars eth.RollupVariables |
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Events eth.RollupEvents |
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} |
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// AuctionBlock stores all the data related to the Auction SC from an ethereum block
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type AuctionBlock struct { |
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State eth.AuctionState |
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Vars eth.AuctionVariables |
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Events eth.AuctionEvents |
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} |
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// EthereumBlock stores all the generic data related to the an ethereum block
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type EthereumBlock struct { |
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BlockNum int64 |
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Time int64 |
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Hash ethCommon.Hash |
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ParentHash ethCommon.Hash |
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// state ethState
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} |
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// Block represents a ethereum block
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type Block struct { |
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Rollup *RollupBlock |
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Auction *AuctionBlock |
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Eth *EthereumBlock |
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} |
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// type ethState struct {
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// blockNum int64
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// }
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// type state struct {
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// rollupState eth.RollupState
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// rollupVars eth.RollupVariables
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// auctionState eth.AuctionState
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// auctionVars eth.AuctionVariables
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// eth ethState
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// }
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// ClientSetup is used to initialize the constants of the Smart Contracts and
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// other details of the test Client
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type ClientSetup struct { |
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RollupConstants *eth.RollupConstants |
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RollupVariables *eth.RollupVariables |
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AuctionConstants *eth.AuctionConstants |
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AuctionVariables *eth.AuctionVariables |
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VerifyProof bool |
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} |
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// Timer is an interface to simulate a source of time, useful to advance time
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// virtually.
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type Timer interface { |
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Time() int64 |
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} |
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// type forgeBatchArgs struct {
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// ethTx *types.Transaction
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// blockNum int64
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// blockHash ethCommon.Hash
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// }
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// Client implements the eth.ClientInterface interface, allowing to manipulate the
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// values for testing, working with deterministic results.
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type Client struct { |
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log bool |
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blockNum *big.Int |
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log bool |
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rollupConstants *eth.RollupConstants |
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auctionConstants *eth.AuctionConstants |
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blocks map[int64]*Block |
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// state state
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blockNum int64 // last mined block num
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maxBlockNum int64 // highest block num calculated
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timer Timer |
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hasher hasher |
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forgeBatchArgsPending map[ethCommon.Hash]*eth.RollupForgeBatchArgs |
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forgeBatchArgs map[ethCommon.Hash]*eth.RollupForgeBatchArgs |
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} |
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// NewClient returns a new test Client that implements the eth.IClient
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// interface, at the given initialBlockNumber.
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func NewClient(l bool, initialBlockNumber int64) *Client { |
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func NewClient(l bool, timer Timer, setup *ClientSetup) *Client { |
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blocks := make(map[int64]*Block) |
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blockNum := int64(0) |
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hasher := hasher{} |
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// Add ethereum genesis block
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mapL1TxQueue := make(map[int64]*eth.QueueStruct) |
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mapL1TxQueue[0] = eth.NewQueueStruct() |
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mapL1TxQueue[1] = eth.NewQueueStruct() |
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blockCurrent := Block{ |
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Rollup: &RollupBlock{ |
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State: eth.RollupState{ |
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StateRoot: big.NewInt(0), |
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ExitRoots: make([]*big.Int, 0), |
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ExitNullifierMap: make(map[[256 / 8]byte]bool), |
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TokenList: make([]ethCommon.Address, 0), |
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TokenMap: make(map[ethCommon.Address]bool), |
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MapL1TxQueue: mapL1TxQueue, |
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LastL1L2Batch: 0, |
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CurrentToForgeL1TxsNum: 0, |
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LastToForgeL1TxsNum: 1, |
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CurrentIdx: 0, |
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}, |
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Vars: *setup.RollupVariables, |
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Events: eth.NewRollupEvents(), |
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}, |
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Auction: &AuctionBlock{ |
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State: eth.AuctionState{ |
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Slots: make(map[int64]eth.SlotState), |
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PendingBalances: make(map[ethCommon.Address]*big.Int), |
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Coordinators: make(map[ethCommon.Address]eth.Coordinator), |
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}, |
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Vars: *setup.AuctionVariables, |
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Events: eth.NewAuctionEvents(), |
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}, |
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Eth: &EthereumBlock{ |
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BlockNum: blockNum, |
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Time: timer.Time(), |
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Hash: hasher.Next(), |
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ParentHash: ethCommon.Hash{}, |
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}, |
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} |
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blocks[blockNum] = &blockCurrent |
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blockNextRaw, err := copystructure.Copy(&blockCurrent) |
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if err != nil { |
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panic(err) |
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} |
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blockNext := blockNextRaw.(*Block) |
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blocks[blockNum+1] = blockNext |
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return &Client{ |
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log: l, |
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blockNum: big.NewInt(initialBlockNumber), |
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log: l, |
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rollupConstants: setup.RollupConstants, |
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auctionConstants: setup.AuctionConstants, |
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blocks: blocks, |
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timer: timer, |
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hasher: hasher, |
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forgeBatchArgsPending: make(map[ethCommon.Hash]*eth.RollupForgeBatchArgs), |
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forgeBatchArgs: make(map[ethCommon.Hash]*eth.RollupForgeBatchArgs), |
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} |
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} |
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// Advance moves one block forward
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func (c *Client) Advance() { |
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c.blockNum = c.blockNum.Add(c.blockNum, big.NewInt(1)) |
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//
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// Mock Control
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//
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// Debugf calls log.Debugf if c.log is true
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func (c *Client) Debugf(template string, args ...interface{}) { |
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if c.log { |
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log.Debugf("TestEthClient blockNum advanced: %d", c.blockNum) |
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log.Debugf(template, args...) |
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} |
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} |
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// SetBlockNum sets the Client.blockNum to the given blockNum
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func (c *Client) SetBlockNum(blockNum *big.Int) { |
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c.blockNum = blockNum |
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// Debugw calls log.Debugw if c.log is true
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func (c *Client) Debugw(template string, kv ...interface{}) { |
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if c.log { |
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log.Debugf("TestEthClient blockNum set to: %d", c.blockNum) |
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log.Debugw(template, kv...) |
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} |
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} |
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// EthCurrentBlock returns the current blockNum
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func (c *Client) EthCurrentBlock() (*big.Int, error) { |
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return c.blockNum, nil |
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type hasher struct { |
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counter uint64 |
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} |
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func newHeader(number *big.Int) *types.Header { |
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return &types.Header{ |
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Number: number, |
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Time: uint64(number.Int64()), |
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// Next returns the next hash
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func (h *hasher) Next() ethCommon.Hash { |
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var hash ethCommon.Hash |
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binary.LittleEndian.PutUint64(hash[:], h.counter) |
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h.counter++ |
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return hash |
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} |
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func (c *Client) nextBlock() *Block { |
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return c.blocks[c.blockNum+1] |
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} |
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// CtlMineBlock moves one block forward
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func (c *Client) CtlMineBlock() { |
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blockCurrent := c.nextBlock() |
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c.blockNum++ |
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c.maxBlockNum = c.blockNum |
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blockCurrent.Eth = &EthereumBlock{ |
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BlockNum: c.blockNum, |
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Time: c.timer.Time(), |
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Hash: c.hasher.Next(), |
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ParentHash: blockCurrent.Eth.Hash, |
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} |
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for ethTxHash, forgeBatchArgs := range c.forgeBatchArgsPending { |
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c.forgeBatchArgs[ethTxHash] = forgeBatchArgs |
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} |
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c.forgeBatchArgsPending = make(map[ethCommon.Hash]*eth.RollupForgeBatchArgs) |
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blockNextRaw, err := copystructure.Copy(blockCurrent) |
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if err != nil { |
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panic(err) |
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} |
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blockNext := blockNextRaw.(*Block) |
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blockNext.Rollup.Events = eth.NewRollupEvents() |
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blockNext.Auction.Events = eth.NewAuctionEvents() |
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c.blocks[c.blockNum+1] = blockNext |
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c.Debugw("TestClient mined block", "blockNum", c.blockNum) |
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} |
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// CtlRollback discards the last mined block. Use this to replace a mined
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// block to simulate reorgs.
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func (c *Client) CtlRollback() { |
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if c.blockNum == 0 { |
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panic("Can't rollback at blockNum = 0") |
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} |
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delete(c.blocks, c.blockNum+1) // delete next block
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delete(c.blocks, c.blockNum) // delete current block
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c.blockNum-- |
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blockCurrent := c.blocks[c.blockNum] |
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blockNextRaw, err := copystructure.Copy(blockCurrent) |
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if err != nil { |
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panic(err) |
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} |
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blockNext := blockNextRaw.(*Block) |
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blockNext.Rollup.Events = eth.NewRollupEvents() |
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blockNext.Auction.Events = eth.NewAuctionEvents() |
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c.blocks[c.blockNum+1] = blockNext |
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} |
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//
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// Ethereum
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//
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// EthCurrentBlock returns the current blockNum
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func (c *Client) EthCurrentBlock() (int64, error) { |
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if c.blockNum < c.maxBlockNum { |
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panic("blockNum has decreased. " + |
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"After a rollback you must mine to reach the same or higher blockNum") |
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} |
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return c.blockNum, nil |
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} |
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// func newHeader(number *big.Int) *types.Header {
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// return &types.Header{
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// Number: number,
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// Time: uint64(number.Int64()),
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// }
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// }
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// EthHeaderByNumber returns the *types.Header for the given block number in a
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// deterministic way.
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func (c *Client) EthHeaderByNumber(ctx context.Context, number *big.Int) (*types.Header, error) { |
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return newHeader(number), nil |
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} |
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// func (c *Client) EthHeaderByNumber(ctx context.Context, number *big.Int) (*types.Header, error) {
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// return newHeader(number), nil
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// }
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// EthBlockByNumber returns the *common.Block for the given block number in a
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// deterministic way.
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func (c *Client) EthBlockByNumber(ctx context.Context, number *big.Int) (*common.Block, error) { |
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header := newHeader(number) |
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func (c *Client) EthBlockByNumber(ctx context.Context, blockNum int64) (*common.Block, error) { |
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block, ok := c.blocks[blockNum] |
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if !ok { |
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return nil, fmt.Errorf("block not found") |
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} |
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return &common.Block{ |
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EthBlockNum: uint64(number.Int64()), |
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Timestamp: time.Unix(number.Int64(), 0), |
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Hash: header.Hash(), |
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EthBlockNum: blockNum, |
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Timestamp: time.Unix(block.Eth.Time, 0), |
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Hash: block.Eth.Hash, |
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ParentHash: block.Eth.ParentHash, |
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}, nil |
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} |
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@ -83,14 +291,78 @@ var errTODO = fmt.Errorf("TODO: Not implemented yet") |
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// Rollup
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//
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// CtlAddL1TxUser adds an L1TxUser to the L1UserTxs queue of the Rollup
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func (c *Client) CtlAddL1TxUser(l1Tx *common.L1Tx) { |
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nextBlock := c.nextBlock() |
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r := nextBlock.Rollup |
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queue := r.State.MapL1TxQueue[r.State.LastToForgeL1TxsNum] |
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if len(queue.L1TxQueue) >= c.rollupConstants.MaxL1UserTx { |
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r.State.LastToForgeL1TxsNum++ |
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r.State.MapL1TxQueue[r.State.LastToForgeL1TxsNum] = eth.NewQueueStruct() |
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queue = r.State.MapL1TxQueue[r.State.LastToForgeL1TxsNum] |
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} |
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if int64(l1Tx.FromIdx) > r.State.CurrentIdx { |
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panic("l1Tx.FromIdx > r.State.CurrentIdx") |
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} |
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if int(l1Tx.TokenID)+1 > len(r.State.TokenList) { |
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panic("l1Tx.TokenID + 1 > len(r.State.TokenList)") |
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} |
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queue.L1TxQueue = append(queue.L1TxQueue, *l1Tx) |
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r.Events.L1UserTx = append(r.Events.L1UserTx, eth.RollupEventL1UserTx{L1Tx: *l1Tx}) |
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} |
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func (c *Client) newTransaction(name string, value interface{}) *types.Transaction { |
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data, err := json.Marshal(value) |
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if err != nil { |
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panic(err) |
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} |
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return types.NewTransaction(0, ethCommon.Address{}, nil, 0, nil, |
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data) |
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} |
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// RollupForgeBatch is the interface to call the smart contract function
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func (c *Client) RollupForgeBatch(*eth.RollupForgeBatchArgs) (*types.Transaction, error) { |
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return nil, errTODO |
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} |
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// CtlAddBatch adds forged batch to the Rollup, without checking any ZKProof
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func (c *Client) CtlAddBatch(args *eth.RollupForgeBatchArgs) { |
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nextBlock := c.nextBlock() |
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r := nextBlock.Rollup |
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r.State.StateRoot = args.NewStRoot |
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if args.NewLastIdx < r.State.CurrentIdx { |
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panic("args.NewLastIdx < r.State.CurrentIdx") |
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} |
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r.State.CurrentIdx = args.NewLastIdx |
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r.State.ExitRoots = append(r.State.ExitRoots, args.NewExitRoot) |
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if args.L1Batch { |
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r.State.CurrentToForgeL1TxsNum++ |
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if r.State.CurrentToForgeL1TxsNum == r.State.LastToForgeL1TxsNum { |
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r.State.LastToForgeL1TxsNum++ |
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r.State.MapL1TxQueue[r.State.LastToForgeL1TxsNum] = eth.NewQueueStruct() |
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} |
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} |
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ethTx := c.newTransaction("forgebatch", args) |
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c.forgeBatchArgsPending[ethTx.Hash()] = args |
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r.Events.ForgeBatch = append(r.Events.ForgeBatch, eth.RollupEventForgeBatch{ |
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BatchNum: int64(len(r.State.ExitRoots)), |
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EthTxHash: ethTx.Hash(), |
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}) |
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} |
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// RollupAddToken is the interface to call the smart contract function
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func (c *Client) RollupAddToken(tokenAddress ethCommon.Address) (*types.Transaction, error) { |
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return nil, errTODO |
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nextBlock := c.nextBlock() |
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r := nextBlock.Rollup |
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if _, ok := r.State.TokenMap[tokenAddress]; ok { |
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return nil, fmt.Errorf("Token %v already registered", tokenAddress) |
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} |
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r.State.TokenMap[tokenAddress] = true |
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r.State.TokenList = append(r.State.TokenList, tokenAddress) |
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r.Events.AddToken = append(r.Events.AddToken, eth.RollupEventAddToken{Address: tokenAddress, |
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TokenID: uint32(len(r.State.TokenList) - 1)}) |
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return c.newTransaction("addtoken", tokenAddress), nil |
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} |
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// RollupWithdrawSNARK is the interface to call the smart contract function
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@ -185,12 +457,20 @@ func (c *Client) RollupConstants() (*eth.RollupConstants, error) { |
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// RollupEventsByBlock returns the events in a block that happened in the Rollup Smart Contract
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func (c *Client) RollupEventsByBlock(blockNum int64) (*eth.RollupEvents, *ethCommon.Hash, error) { |
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return nil, nil, errTODO |
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block, ok := c.blocks[blockNum] |
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if !ok { |
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return nil, nil, fmt.Errorf("Block %v doesn't exist", blockNum) |
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} |
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return &block.Rollup.Events, &block.Eth.Hash, nil |
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} |
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// RollupForgeBatchArgs returns the arguments used in a ForgeBatch call in the Rollup Smart Contract in the given transaction
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func (c *Client) RollupForgeBatchArgs(transaction *types.Transaction) (*eth.RollupForgeBatchArgs, error) { |
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return nil, errTODO |
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func (c *Client) RollupForgeBatchArgs(ethTxHash ethCommon.Hash) (*eth.RollupForgeBatchArgs, error) { |
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forgeBatchArgs, ok := c.forgeBatchArgs[ethTxHash] |
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if !ok { |
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return nil, fmt.Errorf("transaction not found") |
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} |
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return forgeBatchArgs, nil |
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} |
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//
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Eduard S
4 years ago