forked from cerc-io/plugeth
511 lines
18 KiB
Go
511 lines
18 KiB
Go
// Copyright 2016 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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// This file contains some shares testing functionality, common to multiple
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// different files and modules being tested.
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package les
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import (
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"context"
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"crypto/rand"
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"math/big"
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"sync"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/accounts/abi/bind"
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"github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/mclock"
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"github.com/ethereum/go-ethereum/consensus/ethash"
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"github.com/ethereum/go-ethereum/contracts/checkpointoracle/contract"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/rawdb"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/eth"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/event"
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"github.com/ethereum/go-ethereum/les/flowcontrol"
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"github.com/ethereum/go-ethereum/light"
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"github.com/ethereum/go-ethereum/p2p"
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"github.com/ethereum/go-ethereum/p2p/enode"
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"github.com/ethereum/go-ethereum/params"
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)
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var (
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bankKey, _ = crypto.GenerateKey()
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bankAddr = crypto.PubkeyToAddress(bankKey.PublicKey)
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bankFunds = big.NewInt(1000000000000000000)
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userKey1, _ = crypto.GenerateKey()
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userKey2, _ = crypto.GenerateKey()
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userAddr1 = crypto.PubkeyToAddress(userKey1.PublicKey)
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userAddr2 = crypto.PubkeyToAddress(userKey2.PublicKey)
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testContractCode = common.Hex2Bytes("606060405260cc8060106000396000f360606040526000357c01000000000000000000000000000000000000000000000000000000009004806360cd2685146041578063c16431b914606b57603f565b005b6055600480803590602001909190505060a9565b6040518082815260200191505060405180910390f35b60886004808035906020019091908035906020019091905050608a565b005b80600060005083606481101560025790900160005b50819055505b5050565b6000600060005082606481101560025790900160005b5054905060c7565b91905056")
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testContractAddr common.Address
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testContractCodeDeployed = testContractCode[16:]
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testContractDeployed = uint64(2)
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testEventEmitterCode = common.Hex2Bytes("60606040523415600e57600080fd5b7f57050ab73f6b9ebdd9f76b8d4997793f48cf956e965ee070551b9ca0bb71584e60405160405180910390a160358060476000396000f3006060604052600080fd00a165627a7a723058203f727efcad8b5811f8cb1fc2620ce5e8c63570d697aef968172de296ea3994140029")
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// Checkpoint registrar relative
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registrarAddr common.Address
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signerKey, _ = crypto.GenerateKey()
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signerAddr = crypto.PubkeyToAddress(signerKey.PublicKey)
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)
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var (
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// The block frequency for creating checkpoint(only used in test)
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sectionSize = big.NewInt(512)
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// The number of confirmations needed to generate a checkpoint(only used in test).
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processConfirms = big.NewInt(4)
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//
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testBufLimit = uint64(1000000)
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testBufRecharge = uint64(1000)
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)
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/*
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contract test {
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uint256[100] data;
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function Put(uint256 addr, uint256 value) {
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data[addr] = value;
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}
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function Get(uint256 addr) constant returns (uint256 value) {
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return data[addr];
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}
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}
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*/
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// prepareTestchain pre-commits specified number customized blocks into chain.
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func prepareTestchain(n int, backend *backends.SimulatedBackend) {
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var (
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ctx = context.Background()
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signer = types.HomesteadSigner{}
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)
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for i := 0; i < n; i++ {
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switch i {
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case 0:
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// deploy checkpoint contract
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registrarAddr, _, _, _ = contract.DeployCheckpointOracle(bind.NewKeyedTransactor(bankKey), backend, []common.Address{signerAddr}, sectionSize, processConfirms, big.NewInt(1))
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// bankUser transfers some ether to user1
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nonce, _ := backend.PendingNonceAt(ctx, bankAddr)
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tx, _ := types.SignTx(types.NewTransaction(nonce, userAddr1, big.NewInt(10000), params.TxGas, nil, nil), signer, bankKey)
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backend.SendTransaction(ctx, tx)
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case 1:
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bankNonce, _ := backend.PendingNonceAt(ctx, bankAddr)
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userNonce1, _ := backend.PendingNonceAt(ctx, userAddr1)
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// bankUser transfers more ether to user1
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tx1, _ := types.SignTx(types.NewTransaction(bankNonce, userAddr1, big.NewInt(1000), params.TxGas, nil, nil), signer, bankKey)
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backend.SendTransaction(ctx, tx1)
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// user1 relays ether to user2
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tx2, _ := types.SignTx(types.NewTransaction(userNonce1, userAddr2, big.NewInt(1000), params.TxGas, nil, nil), signer, userKey1)
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backend.SendTransaction(ctx, tx2)
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// user1 deploys a test contract
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tx3, _ := types.SignTx(types.NewContractCreation(userNonce1+1, big.NewInt(0), 200000, big.NewInt(0), testContractCode), signer, userKey1)
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backend.SendTransaction(ctx, tx3)
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testContractAddr = crypto.CreateAddress(userAddr1, userNonce1+1)
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// user1 deploys a event contract
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tx4, _ := types.SignTx(types.NewContractCreation(userNonce1+2, big.NewInt(0), 200000, big.NewInt(0), testEventEmitterCode), signer, userKey1)
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backend.SendTransaction(ctx, tx4)
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case 2:
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// bankUser transfer some ether to signer
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bankNonce, _ := backend.PendingNonceAt(ctx, bankAddr)
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tx1, _ := types.SignTx(types.NewTransaction(bankNonce, signerAddr, big.NewInt(1000000000), params.TxGas, nil, nil), signer, bankKey)
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backend.SendTransaction(ctx, tx1)
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// invoke test contract
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data := common.Hex2Bytes("C16431B900000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000001")
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tx2, _ := types.SignTx(types.NewTransaction(bankNonce+1, testContractAddr, big.NewInt(0), 100000, nil, data), signer, bankKey)
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backend.SendTransaction(ctx, tx2)
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case 3:
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// invoke test contract
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bankNonce, _ := backend.PendingNonceAt(ctx, bankAddr)
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data := common.Hex2Bytes("C16431B900000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002")
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tx, _ := types.SignTx(types.NewTransaction(bankNonce, testContractAddr, big.NewInt(0), 100000, nil, data), signer, bankKey)
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backend.SendTransaction(ctx, tx)
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}
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backend.Commit()
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}
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}
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// testIndexers creates a set of indexers with specified params for testing purpose.
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func testIndexers(db ethdb.Database, odr light.OdrBackend, config *light.IndexerConfig) []*core.ChainIndexer {
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var indexers [3]*core.ChainIndexer
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indexers[0] = light.NewChtIndexer(db, odr, config.ChtSize, config.ChtConfirms)
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indexers[1] = eth.NewBloomIndexer(db, config.BloomSize, config.BloomConfirms)
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indexers[2] = light.NewBloomTrieIndexer(db, odr, config.BloomSize, config.BloomTrieSize)
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// make bloomTrieIndexer as a child indexer of bloom indexer.
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indexers[1].AddChildIndexer(indexers[2])
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return indexers[:]
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}
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// newTestProtocolManager creates a new protocol manager for testing purposes,
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// with the given number of blocks already known, potential notification
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// channels for different events and relative chain indexers array.
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func newTestProtocolManager(lightSync bool, blocks int, odr *LesOdr, indexers []*core.ChainIndexer, peers *peerSet, db ethdb.Database, ulcServers []string, ulcFraction int, testCost uint64, clock mclock.Clock) (*ProtocolManager, *backends.SimulatedBackend, error) {
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var (
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evmux = new(event.TypeMux)
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engine = ethash.NewFaker()
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gspec = core.Genesis{
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Config: params.AllEthashProtocolChanges,
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Alloc: core.GenesisAlloc{bankAddr: {Balance: bankFunds}},
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}
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pool txPool
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chain BlockChain
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exitCh = make(chan struct{})
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)
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gspec.MustCommit(db)
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if peers == nil {
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peers = newPeerSet()
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}
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// create a simulation backend and pre-commit several customized block to the database.
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simulation := backends.NewSimulatedBackendWithDatabase(db, gspec.Alloc, 100000000)
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prepareTestchain(blocks, simulation)
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// initialize empty chain for light client or pre-committed chain for server.
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if lightSync {
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chain, _ = light.NewLightChain(odr, gspec.Config, engine, nil)
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} else {
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chain = simulation.Blockchain()
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config := core.DefaultTxPoolConfig
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config.Journal = ""
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pool = core.NewTxPool(config, gspec.Config, simulation.Blockchain())
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}
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// Create contract registrar
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indexConfig := light.TestServerIndexerConfig
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if lightSync {
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indexConfig = light.TestClientIndexerConfig
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}
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config := ¶ms.CheckpointOracleConfig{
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Address: crypto.CreateAddress(bankAddr, 0),
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Signers: []common.Address{signerAddr},
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Threshold: 1,
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}
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var reg *checkpointOracle
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if indexers != nil {
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getLocal := func(index uint64) params.TrustedCheckpoint {
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chtIndexer := indexers[0]
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sectionHead := chtIndexer.SectionHead(index)
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return params.TrustedCheckpoint{
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SectionIndex: index,
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SectionHead: sectionHead,
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CHTRoot: light.GetChtRoot(db, index, sectionHead),
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BloomRoot: light.GetBloomTrieRoot(db, index, sectionHead),
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}
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}
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reg = newCheckpointOracle(config, getLocal)
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}
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pm, err := NewProtocolManager(gspec.Config, nil, indexConfig, ulcServers, ulcFraction, lightSync, NetworkId, evmux, peers, chain, pool, db, odr, nil, reg, exitCh, new(sync.WaitGroup), func() bool { return true })
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if err != nil {
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return nil, nil, err
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}
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// Registrar initialization could failed if checkpoint contract is not specified.
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if pm.reg != nil {
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pm.reg.start(simulation)
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}
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// Set up les server stuff.
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if !lightSync {
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srv := &LesServer{lesCommons: lesCommons{protocolManager: pm, chainDb: db}}
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pm.server = srv
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pm.servingQueue = newServingQueue(int64(time.Millisecond*10), 1)
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pm.servingQueue.setThreads(4)
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srv.defParams = flowcontrol.ServerParams{
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BufLimit: testBufLimit,
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MinRecharge: testBufRecharge,
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}
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srv.testCost = testCost
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srv.fcManager = flowcontrol.NewClientManager(nil, clock)
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}
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pm.Start(1000)
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return pm, simulation, nil
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}
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// newTestProtocolManagerMust creates a new protocol manager for testing purposes,
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// with the given number of blocks already known, potential notification channels
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// for different events and relative chain indexers array. In case of an error, the
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// constructor force-fails the test.
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func newTestProtocolManagerMust(t *testing.T, lightSync bool, blocks int, odr *LesOdr, indexers []*core.ChainIndexer, peers *peerSet, db ethdb.Database, ulcServers []string, ulcFraction int) (*ProtocolManager, *backends.SimulatedBackend) {
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pm, backend, err := newTestProtocolManager(lightSync, blocks, odr, indexers, peers, db, ulcServers, ulcFraction, 0, &mclock.System{})
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if err != nil {
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t.Fatalf("Failed to create protocol manager: %v", err)
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}
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return pm, backend
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}
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// testPeer is a simulated peer to allow testing direct network calls.
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type testPeer struct {
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net p2p.MsgReadWriter // Network layer reader/writer to simulate remote messaging
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app *p2p.MsgPipeRW // Application layer reader/writer to simulate the local side
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*peer
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}
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// newTestPeer creates a new peer registered at the given protocol manager.
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func newTestPeer(t *testing.T, name string, version int, pm *ProtocolManager, shake bool, testCost uint64) (*testPeer, <-chan error) {
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// Create a message pipe to communicate through
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app, net := p2p.MsgPipe()
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// Generate a random id and create the peer
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var id enode.ID
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rand.Read(id[:])
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peer := pm.newPeer(version, NetworkId, p2p.NewPeer(id, name, nil), net)
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// Start the peer on a new thread
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errc := make(chan error, 1)
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go func() {
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select {
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case pm.newPeerCh <- peer:
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errc <- pm.handle(peer)
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case <-pm.quitSync:
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errc <- p2p.DiscQuitting
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}
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}()
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tp := &testPeer{
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app: app,
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net: net,
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peer: peer,
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}
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// Execute any implicitly requested handshakes and return
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if shake {
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var (
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genesis = pm.blockchain.Genesis()
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head = pm.blockchain.CurrentHeader()
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td = pm.blockchain.GetTd(head.Hash(), head.Number.Uint64())
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)
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tp.handshake(t, td, head.Hash(), head.Number.Uint64(), genesis.Hash(), testCost)
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}
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return tp, errc
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}
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func newTestPeerPair(name string, version int, pm, pm2 *ProtocolManager) (*peer, <-chan error, *peer, <-chan error) {
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// Create a message pipe to communicate through
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app, net := p2p.MsgPipe()
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// Generate a random id and create the peer
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var id enode.ID
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rand.Read(id[:])
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peer := pm.newPeer(version, NetworkId, p2p.NewPeer(id, name, nil), net)
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peer2 := pm2.newPeer(version, NetworkId, p2p.NewPeer(id, name, nil), app)
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// Start the peer on a new thread
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errc := make(chan error, 1)
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errc2 := make(chan error, 1)
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go func() {
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select {
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case pm.newPeerCh <- peer:
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errc <- pm.handle(peer)
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case <-pm.quitSync:
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errc <- p2p.DiscQuitting
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}
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}()
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go func() {
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select {
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case pm2.newPeerCh <- peer2:
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errc2 <- pm2.handle(peer2)
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case <-pm2.quitSync:
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errc2 <- p2p.DiscQuitting
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}
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}()
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return peer, errc, peer2, errc2
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}
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// handshake simulates a trivial handshake that expects the same state from the
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// remote side as we are simulating locally.
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func (p *testPeer) handshake(t *testing.T, td *big.Int, head common.Hash, headNum uint64, genesis common.Hash, testCost uint64) {
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var expList keyValueList
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expList = expList.add("protocolVersion", uint64(p.version))
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expList = expList.add("networkId", uint64(NetworkId))
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expList = expList.add("headTd", td)
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expList = expList.add("headHash", head)
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expList = expList.add("headNum", headNum)
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expList = expList.add("genesisHash", genesis)
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sendList := make(keyValueList, len(expList))
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copy(sendList, expList)
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expList = expList.add("serveHeaders", nil)
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expList = expList.add("serveChainSince", uint64(0))
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expList = expList.add("serveStateSince", uint64(0))
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expList = expList.add("serveRecentState", uint64(core.TriesInMemory-4))
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expList = expList.add("txRelay", nil)
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expList = expList.add("flowControl/BL", testBufLimit)
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expList = expList.add("flowControl/MRR", testBufRecharge)
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expList = expList.add("flowControl/MRC", testCostList(testCost))
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if err := p2p.ExpectMsg(p.app, StatusMsg, expList); err != nil {
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t.Fatalf("status recv: %v", err)
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}
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if err := p2p.Send(p.app, StatusMsg, sendList); err != nil {
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t.Fatalf("status send: %v", err)
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}
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p.fcParams = flowcontrol.ServerParams{
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BufLimit: testBufLimit,
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MinRecharge: testBufRecharge,
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}
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}
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// close terminates the local side of the peer, notifying the remote protocol
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// manager of termination.
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func (p *testPeer) close() {
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p.app.Close()
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}
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// TestEntity represents a network entity for testing with necessary auxiliary fields.
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type TestEntity struct {
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db ethdb.Database
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rPeer *peer
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tPeer *testPeer
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peers *peerSet
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pm *ProtocolManager
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backend *backends.SimulatedBackend
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// Indexers
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chtIndexer *core.ChainIndexer
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bloomIndexer *core.ChainIndexer
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bloomTrieIndexer *core.ChainIndexer
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}
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// newServerEnv creates a server testing environment with a connected test peer for testing purpose.
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func newServerEnv(t *testing.T, blocks int, protocol int, waitIndexers func(*core.ChainIndexer, *core.ChainIndexer, *core.ChainIndexer)) (*TestEntity, func()) {
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db := rawdb.NewMemoryDatabase()
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indexers := testIndexers(db, nil, light.TestServerIndexerConfig)
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pm, b := newTestProtocolManagerMust(t, false, blocks, nil, indexers, nil, db, nil, 0)
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peer, _ := newTestPeer(t, "peer", protocol, pm, true, 0)
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cIndexer, bIndexer, btIndexer := indexers[0], indexers[1], indexers[2]
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cIndexer.Start(pm.blockchain.(*core.BlockChain))
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bIndexer.Start(pm.blockchain.(*core.BlockChain))
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// Wait until indexers generate enough index data.
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if waitIndexers != nil {
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waitIndexers(cIndexer, bIndexer, btIndexer)
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}
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return &TestEntity{
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db: db,
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tPeer: peer,
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pm: pm,
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backend: b,
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chtIndexer: cIndexer,
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bloomIndexer: bIndexer,
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bloomTrieIndexer: btIndexer,
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}, func() {
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peer.close()
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// Note bloom trie indexer will be closed by it parent recursively.
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cIndexer.Close()
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bIndexer.Close()
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b.Close()
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}
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}
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// newClientServerEnv creates a client/server arch environment with a connected les server and light client pair
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// for testing purpose.
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func newClientServerEnv(t *testing.T, blocks int, protocol int, waitIndexers func(*core.ChainIndexer, *core.ChainIndexer, *core.ChainIndexer), newPeer bool) (*TestEntity, *TestEntity, func()) {
|
|
db, ldb := rawdb.NewMemoryDatabase(), rawdb.NewMemoryDatabase()
|
|
peers, lPeers := newPeerSet(), newPeerSet()
|
|
|
|
dist := newRequestDistributor(lPeers, make(chan struct{}), &mclock.System{})
|
|
rm := newRetrieveManager(lPeers, dist, nil)
|
|
odr := NewLesOdr(ldb, light.TestClientIndexerConfig, rm)
|
|
|
|
indexers := testIndexers(db, nil, light.TestServerIndexerConfig)
|
|
lIndexers := testIndexers(ldb, odr, light.TestClientIndexerConfig)
|
|
|
|
cIndexer, bIndexer, btIndexer := indexers[0], indexers[1], indexers[2]
|
|
lcIndexer, lbIndexer, lbtIndexer := lIndexers[0], lIndexers[1], lIndexers[2]
|
|
|
|
odr.SetIndexers(lcIndexer, lbtIndexer, lbIndexer)
|
|
|
|
pm, b := newTestProtocolManagerMust(t, false, blocks, nil, indexers, peers, db, nil, 0)
|
|
lpm, lb := newTestProtocolManagerMust(t, true, 0, odr, lIndexers, lPeers, ldb, nil, 0)
|
|
|
|
startIndexers := func(clientMode bool, pm *ProtocolManager) {
|
|
if clientMode {
|
|
lcIndexer.Start(pm.blockchain.(*light.LightChain))
|
|
lbIndexer.Start(pm.blockchain.(*light.LightChain))
|
|
} else {
|
|
cIndexer.Start(pm.blockchain.(*core.BlockChain))
|
|
bIndexer.Start(pm.blockchain.(*core.BlockChain))
|
|
}
|
|
}
|
|
|
|
startIndexers(false, pm)
|
|
startIndexers(true, lpm)
|
|
|
|
// Execute wait until function if it is specified.
|
|
if waitIndexers != nil {
|
|
waitIndexers(cIndexer, bIndexer, btIndexer)
|
|
}
|
|
|
|
var (
|
|
peer, lPeer *peer
|
|
err1, err2 <-chan error
|
|
)
|
|
if newPeer {
|
|
peer, err1, lPeer, err2 = newTestPeerPair("peer", protocol, pm, lpm)
|
|
select {
|
|
case <-time.After(time.Millisecond * 100):
|
|
case err := <-err1:
|
|
t.Fatalf("peer 1 handshake error: %v", err)
|
|
case err := <-err2:
|
|
t.Fatalf("peer 2 handshake error: %v", err)
|
|
}
|
|
}
|
|
|
|
return &TestEntity{
|
|
db: db,
|
|
pm: pm,
|
|
rPeer: peer,
|
|
peers: peers,
|
|
backend: b,
|
|
chtIndexer: cIndexer,
|
|
bloomIndexer: bIndexer,
|
|
bloomTrieIndexer: btIndexer,
|
|
}, &TestEntity{
|
|
db: ldb,
|
|
pm: lpm,
|
|
rPeer: lPeer,
|
|
peers: lPeers,
|
|
backend: lb,
|
|
chtIndexer: lcIndexer,
|
|
bloomIndexer: lbIndexer,
|
|
bloomTrieIndexer: lbtIndexer,
|
|
}, func() {
|
|
// Note bloom trie indexers will be closed by their parents recursively.
|
|
cIndexer.Close()
|
|
bIndexer.Close()
|
|
lcIndexer.Close()
|
|
lbIndexer.Close()
|
|
b.Close()
|
|
lb.Close()
|
|
}
|
|
}
|