599 lines
19 KiB
Go
599 lines
19 KiB
Go
// Copyright 2019 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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package les
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import (
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"fmt"
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"math/rand"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/common/mclock"
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"github.com/ethereum/go-ethereum/core/rawdb"
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lps "github.com/ethereum/go-ethereum/les/lespay/server"
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"github.com/ethereum/go-ethereum/p2p/enode"
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"github.com/ethereum/go-ethereum/p2p/enr"
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"github.com/ethereum/go-ethereum/p2p/nodestate"
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)
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func TestClientPoolL10C100Free(t *testing.T) {
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testClientPool(t, 10, 100, 0, true)
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}
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func TestClientPoolL40C200Free(t *testing.T) {
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testClientPool(t, 40, 200, 0, true)
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}
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func TestClientPoolL100C300Free(t *testing.T) {
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testClientPool(t, 100, 300, 0, true)
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}
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func TestClientPoolL10C100P4(t *testing.T) {
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testClientPool(t, 10, 100, 4, false)
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}
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func TestClientPoolL40C200P30(t *testing.T) {
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testClientPool(t, 40, 200, 30, false)
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}
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func TestClientPoolL100C300P20(t *testing.T) {
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testClientPool(t, 100, 300, 20, false)
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}
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const testClientPoolTicks = 100000
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type poolTestPeer struct {
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node *enode.Node
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index int
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disconnCh chan int
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cap uint64
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inactiveAllowed bool
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}
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func testStateMachine() *nodestate.NodeStateMachine {
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return nodestate.NewNodeStateMachine(nil, nil, mclock.System{}, serverSetup)
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}
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func newPoolTestPeer(i int, disconnCh chan int) *poolTestPeer {
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return &poolTestPeer{
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index: i,
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disconnCh: disconnCh,
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node: enode.SignNull(&enr.Record{}, enode.ID{byte(i % 256), byte(i >> 8)}),
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}
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}
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func (i *poolTestPeer) Node() *enode.Node {
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return i.node
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}
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func (i *poolTestPeer) freeClientId() string {
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return fmt.Sprintf("addr #%d", i.index)
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}
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func (i *poolTestPeer) updateCapacity(cap uint64) {
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i.cap = cap
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}
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func (i *poolTestPeer) freeze() {}
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func (i *poolTestPeer) allowInactive() bool {
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return i.inactiveAllowed
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}
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func getBalance(pool *clientPool, p *poolTestPeer) (pos, neg uint64) {
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temp := pool.ns.GetField(p.node, clientInfoField) == nil
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if temp {
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pool.ns.SetField(p.node, connAddressField, p.freeClientId())
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}
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n, _ := pool.ns.GetField(p.node, pool.BalanceField).(*lps.NodeBalance)
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pos, neg = n.GetBalance()
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if temp {
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pool.ns.SetField(p.node, connAddressField, nil)
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}
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return
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}
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func addBalance(pool *clientPool, id enode.ID, amount int64) {
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pool.forClients([]enode.ID{id}, func(c *clientInfo) {
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c.balance.AddBalance(amount)
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})
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}
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func checkDiff(a, b uint64) bool {
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maxDiff := (a + b) / 2000
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if maxDiff < 1 {
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maxDiff = 1
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}
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return a > b+maxDiff || b > a+maxDiff
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}
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func testClientPool(t *testing.T, activeLimit, clientCount, paidCount int, randomDisconnect bool) {
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rand.Seed(time.Now().UnixNano())
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var (
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clock mclock.Simulated
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db = rawdb.NewMemoryDatabase()
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connected = make([]bool, clientCount)
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connTicks = make([]int, clientCount)
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disconnCh = make(chan int, clientCount)
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disconnFn = func(id enode.ID) {
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disconnCh <- int(id[0]) + int(id[1])<<8
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}
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pool = newClientPool(testStateMachine(), db, 1, 0, &clock, disconnFn)
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)
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pool.ns.Start()
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pool.setLimits(activeLimit, uint64(activeLimit))
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pool.setDefaultFactors(lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1}, lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1})
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// pool should accept new peers up to its connected limit
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for i := 0; i < activeLimit; i++ {
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if cap, _ := pool.connect(newPoolTestPeer(i, disconnCh)); cap != 0 {
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connected[i] = true
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} else {
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t.Fatalf("Test peer #%d rejected", i)
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}
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}
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// randomly connect and disconnect peers, expect to have a similar total connection time at the end
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for tickCounter := 0; tickCounter < testClientPoolTicks; tickCounter++ {
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clock.Run(1 * time.Second)
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if tickCounter == testClientPoolTicks/4 {
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// give a positive balance to some of the peers
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amount := testClientPoolTicks / 2 * int64(time.Second) // enough for half of the simulation period
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for i := 0; i < paidCount; i++ {
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addBalance(pool, newPoolTestPeer(i, disconnCh).node.ID(), amount)
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}
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}
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i := rand.Intn(clientCount)
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if connected[i] {
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if randomDisconnect {
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pool.disconnect(newPoolTestPeer(i, disconnCh))
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connected[i] = false
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connTicks[i] += tickCounter
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}
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} else {
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if cap, _ := pool.connect(newPoolTestPeer(i, disconnCh)); cap != 0 {
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connected[i] = true
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connTicks[i] -= tickCounter
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} else {
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pool.disconnect(newPoolTestPeer(i, disconnCh))
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}
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}
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pollDisconnects:
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for {
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select {
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case i := <-disconnCh:
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pool.disconnect(newPoolTestPeer(i, disconnCh))
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if connected[i] {
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connTicks[i] += tickCounter
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connected[i] = false
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}
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default:
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break pollDisconnects
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}
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}
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}
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expTicks := testClientPoolTicks/2*activeLimit/clientCount + testClientPoolTicks/2*(activeLimit-paidCount)/(clientCount-paidCount)
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expMin := expTicks - expTicks/5
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expMax := expTicks + expTicks/5
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paidTicks := testClientPoolTicks/2*activeLimit/clientCount + testClientPoolTicks/2
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paidMin := paidTicks - paidTicks/5
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paidMax := paidTicks + paidTicks/5
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// check if the total connected time of peers are all in the expected range
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for i, c := range connected {
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if c {
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connTicks[i] += testClientPoolTicks
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}
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min, max := expMin, expMax
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if i < paidCount {
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// expect a higher amount for clients with a positive balance
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min, max = paidMin, paidMax
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}
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if connTicks[i] < min || connTicks[i] > max {
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t.Errorf("Total connected time of test node #%d (%d) outside expected range (%d to %d)", i, connTicks[i], min, max)
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}
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}
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pool.stop()
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}
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func testPriorityConnect(t *testing.T, pool *clientPool, p *poolTestPeer, cap uint64, expSuccess bool) {
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if cap, _ := pool.connect(p); cap == 0 {
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if expSuccess {
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t.Fatalf("Failed to connect paid client")
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} else {
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return
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}
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}
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if _, err := pool.setCapacity(p.node, "", cap, defaultConnectedBias, true); err != nil {
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if expSuccess {
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t.Fatalf("Failed to raise capacity of paid client")
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} else {
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return
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}
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}
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if !expSuccess {
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t.Fatalf("Should reject high capacity paid client")
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}
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}
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func TestConnectPaidClient(t *testing.T) {
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var (
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clock mclock.Simulated
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db = rawdb.NewMemoryDatabase()
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)
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pool := newClientPool(testStateMachine(), db, 1, defaultConnectedBias, &clock, func(id enode.ID) {})
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pool.ns.Start()
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defer pool.stop()
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pool.setLimits(10, uint64(10))
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pool.setDefaultFactors(lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1}, lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1})
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// Add balance for an external client and mark it as paid client
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addBalance(pool, newPoolTestPeer(0, nil).node.ID(), int64(time.Minute))
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testPriorityConnect(t, pool, newPoolTestPeer(0, nil), 10, true)
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}
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func TestConnectPaidClientToSmallPool(t *testing.T) {
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var (
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clock mclock.Simulated
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db = rawdb.NewMemoryDatabase()
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)
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pool := newClientPool(testStateMachine(), db, 1, defaultConnectedBias, &clock, func(id enode.ID) {})
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pool.ns.Start()
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defer pool.stop()
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pool.setLimits(10, uint64(10)) // Total capacity limit is 10
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pool.setDefaultFactors(lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1}, lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1})
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// Add balance for an external client and mark it as paid client
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addBalance(pool, newPoolTestPeer(0, nil).node.ID(), int64(time.Minute))
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// Connect a fat paid client to pool, should reject it.
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testPriorityConnect(t, pool, newPoolTestPeer(0, nil), 100, false)
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}
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func TestConnectPaidClientToFullPool(t *testing.T) {
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var (
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clock mclock.Simulated
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db = rawdb.NewMemoryDatabase()
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)
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removeFn := func(enode.ID) {} // Noop
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pool := newClientPool(testStateMachine(), db, 1, defaultConnectedBias, &clock, removeFn)
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pool.ns.Start()
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defer pool.stop()
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pool.setLimits(10, uint64(10)) // Total capacity limit is 10
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pool.setDefaultFactors(lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1}, lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1})
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for i := 0; i < 10; i++ {
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addBalance(pool, newPoolTestPeer(i, nil).node.ID(), int64(time.Second*20))
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pool.connect(newPoolTestPeer(i, nil))
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}
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addBalance(pool, newPoolTestPeer(11, nil).node.ID(), int64(time.Second*2)) // Add low balance to new paid client
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if cap, _ := pool.connect(newPoolTestPeer(11, nil)); cap != 0 {
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t.Fatalf("Low balance paid client should be rejected")
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}
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clock.Run(time.Second)
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addBalance(pool, newPoolTestPeer(12, nil).node.ID(), int64(time.Minute*5)) // Add high balance to new paid client
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if cap, _ := pool.connect(newPoolTestPeer(12, nil)); cap == 0 {
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t.Fatalf("High balance paid client should be accepted")
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}
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}
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func TestPaidClientKickedOut(t *testing.T) {
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var (
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clock mclock.Simulated
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db = rawdb.NewMemoryDatabase()
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kickedCh = make(chan int, 100)
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)
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removeFn := func(id enode.ID) {
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kickedCh <- int(id[0])
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}
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pool := newClientPool(testStateMachine(), db, 1, defaultConnectedBias, &clock, removeFn)
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pool.ns.Start()
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pool.bt.SetExpirationTCs(0, 0)
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defer pool.stop()
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pool.setLimits(10, uint64(10)) // Total capacity limit is 10
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pool.setDefaultFactors(lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1}, lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1})
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for i := 0; i < 10; i++ {
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addBalance(pool, newPoolTestPeer(i, kickedCh).node.ID(), 10000000000) // 10 second allowance
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pool.connect(newPoolTestPeer(i, kickedCh))
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clock.Run(time.Millisecond)
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}
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clock.Run(defaultConnectedBias + time.Second*11)
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if cap, _ := pool.connect(newPoolTestPeer(11, kickedCh)); cap == 0 {
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t.Fatalf("Free client should be accepted")
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}
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select {
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case id := <-kickedCh:
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if id != 0 {
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t.Fatalf("Kicked client mismatch, want %v, got %v", 0, id)
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}
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case <-time.NewTimer(time.Second).C:
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t.Fatalf("timeout")
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}
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}
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func TestConnectFreeClient(t *testing.T) {
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var (
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clock mclock.Simulated
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db = rawdb.NewMemoryDatabase()
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)
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pool := newClientPool(testStateMachine(), db, 1, defaultConnectedBias, &clock, func(id enode.ID) {})
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pool.ns.Start()
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defer pool.stop()
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pool.setLimits(10, uint64(10))
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pool.setDefaultFactors(lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1}, lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1})
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if cap, _ := pool.connect(newPoolTestPeer(0, nil)); cap == 0 {
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t.Fatalf("Failed to connect free client")
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}
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testPriorityConnect(t, pool, newPoolTestPeer(0, nil), 2, false)
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}
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func TestConnectFreeClientToFullPool(t *testing.T) {
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var (
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clock mclock.Simulated
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db = rawdb.NewMemoryDatabase()
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)
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removeFn := func(enode.ID) {} // Noop
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pool := newClientPool(testStateMachine(), db, 1, defaultConnectedBias, &clock, removeFn)
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pool.ns.Start()
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defer pool.stop()
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pool.setLimits(10, uint64(10)) // Total capacity limit is 10
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pool.setDefaultFactors(lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1}, lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1})
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for i := 0; i < 10; i++ {
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pool.connect(newPoolTestPeer(i, nil))
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}
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if cap, _ := pool.connect(newPoolTestPeer(11, nil)); cap != 0 {
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t.Fatalf("New free client should be rejected")
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}
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clock.Run(time.Minute)
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if cap, _ := pool.connect(newPoolTestPeer(12, nil)); cap != 0 {
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t.Fatalf("New free client should be rejected")
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}
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clock.Run(time.Millisecond)
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clock.Run(4 * time.Minute)
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if cap, _ := pool.connect(newPoolTestPeer(13, nil)); cap == 0 {
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t.Fatalf("Old client connects more than 5min should be kicked")
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}
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}
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func TestFreeClientKickedOut(t *testing.T) {
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var (
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clock mclock.Simulated
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db = rawdb.NewMemoryDatabase()
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kicked = make(chan int, 100)
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)
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removeFn := func(id enode.ID) { kicked <- int(id[0]) }
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pool := newClientPool(testStateMachine(), db, 1, defaultConnectedBias, &clock, removeFn)
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pool.ns.Start()
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defer pool.stop()
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pool.setLimits(10, uint64(10)) // Total capacity limit is 10
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pool.setDefaultFactors(lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1}, lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1})
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for i := 0; i < 10; i++ {
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pool.connect(newPoolTestPeer(i, kicked))
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clock.Run(time.Millisecond)
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}
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if cap, _ := pool.connect(newPoolTestPeer(10, kicked)); cap != 0 {
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t.Fatalf("New free client should be rejected")
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}
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select {
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case <-kicked:
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case <-time.NewTimer(time.Second).C:
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t.Fatalf("timeout")
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}
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pool.disconnect(newPoolTestPeer(10, kicked))
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clock.Run(5 * time.Minute)
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for i := 0; i < 10; i++ {
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pool.connect(newPoolTestPeer(i+10, kicked))
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}
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for i := 0; i < 10; i++ {
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select {
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case id := <-kicked:
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if id >= 10 {
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t.Fatalf("Old client should be kicked, now got: %d", id)
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}
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case <-time.NewTimer(time.Second).C:
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t.Fatalf("timeout")
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}
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}
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}
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func TestPositiveBalanceCalculation(t *testing.T) {
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var (
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clock mclock.Simulated
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db = rawdb.NewMemoryDatabase()
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kicked = make(chan int, 10)
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)
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removeFn := func(id enode.ID) { kicked <- int(id[0]) } // Noop
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pool := newClientPool(testStateMachine(), db, 1, defaultConnectedBias, &clock, removeFn)
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pool.ns.Start()
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defer pool.stop()
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pool.setLimits(10, uint64(10)) // Total capacity limit is 10
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pool.setDefaultFactors(lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1}, lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1})
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addBalance(pool, newPoolTestPeer(0, kicked).node.ID(), int64(time.Minute*3))
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testPriorityConnect(t, pool, newPoolTestPeer(0, kicked), 10, true)
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clock.Run(time.Minute)
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pool.disconnect(newPoolTestPeer(0, kicked))
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pb, _ := getBalance(pool, newPoolTestPeer(0, kicked))
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if checkDiff(pb, uint64(time.Minute*2)) {
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t.Fatalf("Positive balance mismatch, want %v, got %v", uint64(time.Minute*2), pb)
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}
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}
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func TestDowngradePriorityClient(t *testing.T) {
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var (
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clock mclock.Simulated
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db = rawdb.NewMemoryDatabase()
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kicked = make(chan int, 10)
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)
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removeFn := func(id enode.ID) { kicked <- int(id[0]) } // Noop
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pool := newClientPool(testStateMachine(), db, 1, defaultConnectedBias, &clock, removeFn)
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pool.ns.Start()
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defer pool.stop()
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pool.setLimits(10, uint64(10)) // Total capacity limit is 10
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pool.setDefaultFactors(lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1}, lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 1})
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p := newPoolTestPeer(0, kicked)
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addBalance(pool, p.node.ID(), int64(time.Minute))
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testPriorityConnect(t, pool, p, 10, true)
|
|
if p.cap != 10 {
|
|
t.Fatalf("The capacity of priority peer hasn't been updated, got: %d", p.cap)
|
|
}
|
|
|
|
clock.Run(time.Minute) // All positive balance should be used up.
|
|
time.Sleep(300 * time.Millisecond) // Ensure the callback is called
|
|
if p.cap != 1 {
|
|
t.Fatalf("The capcacity of peer should be downgraded, got: %d", p.cap)
|
|
}
|
|
pb, _ := getBalance(pool, newPoolTestPeer(0, kicked))
|
|
if pb != 0 {
|
|
t.Fatalf("Positive balance mismatch, want %v, got %v", 0, pb)
|
|
}
|
|
|
|
addBalance(pool, newPoolTestPeer(0, kicked).node.ID(), int64(time.Minute))
|
|
pb, _ = getBalance(pool, newPoolTestPeer(0, kicked))
|
|
if checkDiff(pb, uint64(time.Minute)) {
|
|
t.Fatalf("Positive balance mismatch, want %v, got %v", uint64(time.Minute), pb)
|
|
}
|
|
}
|
|
|
|
func TestNegativeBalanceCalculation(t *testing.T) {
|
|
var (
|
|
clock mclock.Simulated
|
|
db = rawdb.NewMemoryDatabase()
|
|
)
|
|
pool := newClientPool(testStateMachine(), db, 1, defaultConnectedBias, &clock, func(id enode.ID) {})
|
|
pool.ns.Start()
|
|
defer pool.stop()
|
|
pool.setLimits(10, uint64(10)) // Total capacity limit is 10
|
|
pool.setDefaultFactors(lps.PriceFactors{TimeFactor: 1e-3, CapacityFactor: 0, RequestFactor: 1}, lps.PriceFactors{TimeFactor: 1e-3, CapacityFactor: 0, RequestFactor: 1})
|
|
|
|
for i := 0; i < 10; i++ {
|
|
pool.connect(newPoolTestPeer(i, nil))
|
|
}
|
|
clock.Run(time.Second)
|
|
|
|
for i := 0; i < 10; i++ {
|
|
pool.disconnect(newPoolTestPeer(i, nil))
|
|
_, nb := getBalance(pool, newPoolTestPeer(i, nil))
|
|
if nb != 0 {
|
|
t.Fatalf("Short connection shouldn't be recorded")
|
|
}
|
|
}
|
|
for i := 0; i < 10; i++ {
|
|
pool.connect(newPoolTestPeer(i, nil))
|
|
}
|
|
clock.Run(time.Minute)
|
|
for i := 0; i < 10; i++ {
|
|
pool.disconnect(newPoolTestPeer(i, nil))
|
|
_, nb := getBalance(pool, newPoolTestPeer(i, nil))
|
|
if checkDiff(nb, uint64(time.Minute)/1000) {
|
|
t.Fatalf("Negative balance mismatch, want %v, got %v", uint64(time.Minute)/1000, nb)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestInactiveClient(t *testing.T) {
|
|
var (
|
|
clock mclock.Simulated
|
|
db = rawdb.NewMemoryDatabase()
|
|
)
|
|
pool := newClientPool(testStateMachine(), db, 1, defaultConnectedBias, &clock, func(id enode.ID) {})
|
|
pool.ns.Start()
|
|
defer pool.stop()
|
|
pool.setLimits(2, uint64(2))
|
|
|
|
p1 := newPoolTestPeer(1, nil)
|
|
p1.inactiveAllowed = true
|
|
p2 := newPoolTestPeer(2, nil)
|
|
p2.inactiveAllowed = true
|
|
p3 := newPoolTestPeer(3, nil)
|
|
p3.inactiveAllowed = true
|
|
addBalance(pool, p1.node.ID(), 1000*int64(time.Second))
|
|
addBalance(pool, p3.node.ID(), 2000*int64(time.Second))
|
|
// p1: 1000 p2: 0 p3: 2000
|
|
p1.cap, _ = pool.connect(p1)
|
|
if p1.cap != 1 {
|
|
t.Fatalf("Failed to connect peer #1")
|
|
}
|
|
p2.cap, _ = pool.connect(p2)
|
|
if p2.cap != 1 {
|
|
t.Fatalf("Failed to connect peer #2")
|
|
}
|
|
p3.cap, _ = pool.connect(p3)
|
|
if p3.cap != 1 {
|
|
t.Fatalf("Failed to connect peer #3")
|
|
}
|
|
if p2.cap != 0 {
|
|
t.Fatalf("Failed to deactivate peer #2")
|
|
}
|
|
addBalance(pool, p2.node.ID(), 3000*int64(time.Second))
|
|
// p1: 1000 p2: 3000 p3: 2000
|
|
if p2.cap != 1 {
|
|
t.Fatalf("Failed to activate peer #2")
|
|
}
|
|
if p1.cap != 0 {
|
|
t.Fatalf("Failed to deactivate peer #1")
|
|
}
|
|
addBalance(pool, p2.node.ID(), -2500*int64(time.Second))
|
|
// p1: 1000 p2: 500 p3: 2000
|
|
if p1.cap != 1 {
|
|
t.Fatalf("Failed to activate peer #1")
|
|
}
|
|
if p2.cap != 0 {
|
|
t.Fatalf("Failed to deactivate peer #2")
|
|
}
|
|
pool.setDefaultFactors(lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 0}, lps.PriceFactors{TimeFactor: 1, CapacityFactor: 0, RequestFactor: 0})
|
|
p4 := newPoolTestPeer(4, nil)
|
|
addBalance(pool, p4.node.ID(), 1500*int64(time.Second))
|
|
// p1: 1000 p2: 500 p3: 2000 p4: 1500
|
|
p4.cap, _ = pool.connect(p4)
|
|
if p4.cap != 1 {
|
|
t.Fatalf("Failed to activate peer #4")
|
|
}
|
|
if p1.cap != 0 {
|
|
t.Fatalf("Failed to deactivate peer #1")
|
|
}
|
|
clock.Run(time.Second * 600)
|
|
// manually trigger a check to avoid a long real-time wait
|
|
pool.ns.SetState(p1.node, pool.UpdateFlag, nodestate.Flags{}, 0)
|
|
pool.ns.SetState(p1.node, nodestate.Flags{}, pool.UpdateFlag, 0)
|
|
// p1: 1000 p2: 500 p3: 2000 p4: 900
|
|
if p1.cap != 1 {
|
|
t.Fatalf("Failed to activate peer #1")
|
|
}
|
|
if p4.cap != 0 {
|
|
t.Fatalf("Failed to deactivate peer #4")
|
|
}
|
|
pool.disconnect(p2)
|
|
pool.disconnect(p4)
|
|
addBalance(pool, p1.node.ID(), -1000*int64(time.Second))
|
|
if p1.cap != 1 {
|
|
t.Fatalf("Should not deactivate peer #1")
|
|
}
|
|
if p2.cap != 0 {
|
|
t.Fatalf("Should not activate peer #2")
|
|
}
|
|
}
|