2020-09-14 23:44:20 +03:00
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// 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 server
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import (
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2021-02-19 17:53:12 +03:00
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"math"
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2020-09-14 23:44:20 +03:00
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"math/rand"
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"reflect"
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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/ethdb/memorydb"
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"github.com/ethereum/go-ethereum/les/utils"
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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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var (
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testFlag = testSetup.NewFlag("testFlag")
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connAddrFlag = testSetup.NewField("connAddr", reflect.TypeOf(""))
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btTestSetup = NewBalanceTrackerSetup(testSetup)
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)
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func init() {
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btTestSetup.Connect(connAddrFlag, ppTestSetup.CapacityField)
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}
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type zeroExpirer struct{}
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func (z zeroExpirer) SetRate(now mclock.AbsTime, rate float64) {}
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func (z zeroExpirer) SetLogOffset(now mclock.AbsTime, logOffset utils.Fixed64) {}
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func (z zeroExpirer) LogOffset(now mclock.AbsTime) utils.Fixed64 { return 0 }
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type balanceTestSetup struct {
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clock *mclock.Simulated
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ns *nodestate.NodeStateMachine
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bt *BalanceTracker
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}
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func newBalanceTestSetup() *balanceTestSetup {
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clock := &mclock.Simulated{}
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ns := nodestate.NewNodeStateMachine(nil, nil, clock, testSetup)
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db := memorydb.New()
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bt := NewBalanceTracker(ns, btTestSetup, db, clock, zeroExpirer{}, zeroExpirer{})
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ns.Start()
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return &balanceTestSetup{
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clock: clock,
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ns: ns,
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bt: bt,
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}
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}
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func (b *balanceTestSetup) newNode(capacity uint64) *NodeBalance {
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node := enode.SignNull(&enr.Record{}, enode.ID{})
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b.ns.SetState(node, testFlag, nodestate.Flags{}, 0)
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b.ns.SetField(node, btTestSetup.connAddressField, "")
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2021-02-19 17:53:12 +03:00
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if capacity != 0 {
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b.ns.SetField(node, ppTestSetup.CapacityField, capacity)
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}
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2020-09-14 23:44:20 +03:00
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n, _ := b.ns.GetField(node, btTestSetup.BalanceField).(*NodeBalance)
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return n
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}
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func (b *balanceTestSetup) stop() {
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b.bt.Stop()
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b.ns.Stop()
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}
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func TestAddBalance(t *testing.T) {
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b := newBalanceTestSetup()
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defer b.stop()
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node := b.newNode(1000)
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var inputs = []struct {
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delta int64
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expect [2]uint64
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total uint64
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expectErr bool
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}{
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{100, [2]uint64{0, 100}, 100, false},
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{-100, [2]uint64{100, 0}, 0, false},
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{-100, [2]uint64{0, 0}, 0, false},
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{1, [2]uint64{0, 1}, 1, false},
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{maxBalance, [2]uint64{0, 0}, 0, true},
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}
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for _, i := range inputs {
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old, new, err := node.AddBalance(i.delta)
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if i.expectErr {
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if err == nil {
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t.Fatalf("Expect get error but nil")
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}
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continue
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} else if err != nil {
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t.Fatalf("Expect get no error but %v", err)
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}
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if old != i.expect[0] || new != i.expect[1] {
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t.Fatalf("Positive balance mismatch, got %v -> %v", old, new)
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}
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if b.bt.TotalTokenAmount() != i.total {
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t.Fatalf("Total positive balance mismatch, want %v, got %v", i.total, b.bt.TotalTokenAmount())
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}
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}
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}
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func TestSetBalance(t *testing.T) {
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b := newBalanceTestSetup()
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defer b.stop()
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node := b.newNode(1000)
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var inputs = []struct {
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pos, neg uint64
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}{
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{1000, 0},
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{0, 1000},
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{1000, 1000},
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}
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for _, i := range inputs {
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node.SetBalance(i.pos, i.neg)
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pos, neg := node.GetBalance()
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if pos != i.pos {
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t.Fatalf("Positive balance mismatch, want %v, got %v", i.pos, pos)
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}
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if neg != i.neg {
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t.Fatalf("Negative balance mismatch, want %v, got %v", i.neg, neg)
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}
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}
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}
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func TestBalanceTimeCost(t *testing.T) {
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b := newBalanceTestSetup()
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defer b.stop()
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node := b.newNode(1000)
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b.ns.SetField(node.node, ppTestSetup.CapacityField, uint64(1))
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node.SetPriceFactors(PriceFactors{1, 0, 1}, PriceFactors{1, 0, 1})
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node.SetBalance(uint64(time.Minute), 0) // 1 minute time allowance
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var inputs = []struct {
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runTime time.Duration
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expPos uint64
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expNeg uint64
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}{
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{time.Second, uint64(time.Second * 59), 0},
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{0, uint64(time.Second * 59), 0},
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{time.Second * 59, 0, 0},
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{time.Second, 0, uint64(time.Second)},
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}
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for _, i := range inputs {
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b.clock.Run(i.runTime)
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if pos, _ := node.GetBalance(); pos != i.expPos {
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t.Fatalf("Positive balance mismatch, want %v, got %v", i.expPos, pos)
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}
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if _, neg := node.GetBalance(); neg != i.expNeg {
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t.Fatalf("Negative balance mismatch, want %v, got %v", i.expNeg, neg)
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}
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}
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node.SetBalance(uint64(time.Minute), 0) // Refill 1 minute time allowance
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for _, i := range inputs {
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b.clock.Run(i.runTime)
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if pos, _ := node.GetBalance(); pos != i.expPos {
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t.Fatalf("Positive balance mismatch, want %v, got %v", i.expPos, pos)
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}
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if _, neg := node.GetBalance(); neg != i.expNeg {
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t.Fatalf("Negative balance mismatch, want %v, got %v", i.expNeg, neg)
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}
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}
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}
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func TestBalanceReqCost(t *testing.T) {
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b := newBalanceTestSetup()
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defer b.stop()
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node := b.newNode(1000)
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node.SetPriceFactors(PriceFactors{1, 0, 1}, PriceFactors{1, 0, 1})
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b.ns.SetField(node.node, ppTestSetup.CapacityField, uint64(1))
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node.SetBalance(uint64(time.Minute), 0) // 1 minute time serving time allowance
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var inputs = []struct {
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reqCost uint64
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expPos uint64
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expNeg uint64
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}{
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{uint64(time.Second), uint64(time.Second * 59), 0},
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{0, uint64(time.Second * 59), 0},
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{uint64(time.Second * 59), 0, 0},
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{uint64(time.Second), 0, uint64(time.Second)},
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}
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for _, i := range inputs {
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node.RequestServed(i.reqCost)
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if pos, _ := node.GetBalance(); pos != i.expPos {
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t.Fatalf("Positive balance mismatch, want %v, got %v", i.expPos, pos)
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}
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if _, neg := node.GetBalance(); neg != i.expNeg {
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t.Fatalf("Negative balance mismatch, want %v, got %v", i.expNeg, neg)
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}
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}
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}
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func TestBalanceToPriority(t *testing.T) {
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b := newBalanceTestSetup()
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defer b.stop()
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node := b.newNode(1000)
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node.SetPriceFactors(PriceFactors{1, 0, 1}, PriceFactors{1, 0, 1})
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var inputs = []struct {
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pos uint64
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neg uint64
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priority int64
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}{
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{1000, 0, 1},
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{2000, 0, 2}, // Higher balance, higher priority value
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{0, 0, 0},
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{0, 1000, -1000},
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}
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for _, i := range inputs {
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node.SetBalance(i.pos, i.neg)
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2021-03-01 12:24:20 +03:00
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priority := node.Priority(1000)
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2020-09-14 23:44:20 +03:00
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if priority != i.priority {
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t.Fatalf("Priority mismatch, want %v, got %v", i.priority, priority)
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}
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}
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}
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func TestEstimatedPriority(t *testing.T) {
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b := newBalanceTestSetup()
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defer b.stop()
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node := b.newNode(1000000000)
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node.SetPriceFactors(PriceFactors{1, 0, 1}, PriceFactors{1, 0, 1})
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b.ns.SetField(node.node, ppTestSetup.CapacityField, uint64(1))
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node.SetBalance(uint64(time.Minute), 0)
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var inputs = []struct {
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runTime time.Duration // time cost
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futureTime time.Duration // diff of future time
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reqCost uint64 // single request cost
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priority int64 // expected estimated priority
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}{
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{time.Second, time.Second, 0, 58},
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{0, time.Second, 0, 58},
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// 2 seconds time cost, 1 second estimated time cost, 10^9 request cost,
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// 10^9 estimated request cost per second.
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{time.Second, time.Second, 1000000000, 55},
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// 3 seconds time cost, 3 second estimated time cost, 10^9*2 request cost,
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// 4*10^9 estimated request cost.
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{time.Second, 3 * time.Second, 1000000000, 48},
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// All positive balance is used up
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{time.Second * 55, 0, 0, 0},
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// 1 minute estimated time cost, 4/58 * 10^9 estimated request cost per sec.
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{0, time.Minute, 0, -int64(time.Minute) - int64(time.Second)*120/29},
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}
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for _, i := range inputs {
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b.clock.Run(i.runTime)
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node.RequestServed(i.reqCost)
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2021-03-01 12:24:20 +03:00
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priority := node.EstimatePriority(1000000000, 0, i.futureTime, 0, false)
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2020-09-14 23:44:20 +03:00
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if priority != i.priority {
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t.Fatalf("Estimated priority mismatch, want %v, got %v", i.priority, priority)
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}
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}
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}
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func TestPosBalanceMissing(t *testing.T) {
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b := newBalanceTestSetup()
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defer b.stop()
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node := b.newNode(1000)
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node.SetPriceFactors(PriceFactors{1, 0, 1}, PriceFactors{1, 0, 1})
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b.ns.SetField(node.node, ppTestSetup.CapacityField, uint64(1))
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var inputs = []struct {
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pos, neg uint64
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priority int64
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cap uint64
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after time.Duration
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expect uint64
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}{
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{uint64(time.Second * 2), 0, 0, 1, time.Second, 0},
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{uint64(time.Second * 2), 0, 0, 1, 2 * time.Second, 1},
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{uint64(time.Second * 2), 0, int64(time.Second), 1, 2 * time.Second, uint64(time.Second) + 1},
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{0, 0, int64(time.Second), 1, time.Second, uint64(2*time.Second) + 1},
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{0, 0, -int64(time.Second), 1, time.Second, 1},
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}
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for _, i := range inputs {
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node.SetBalance(i.pos, i.neg)
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got := node.PosBalanceMissing(i.priority, i.cap, i.after)
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if got != i.expect {
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t.Fatalf("Missing budget mismatch, want %v, got %v", i.expect, got)
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}
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}
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}
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func TestPostiveBalanceCounting(t *testing.T) {
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b := newBalanceTestSetup()
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defer b.stop()
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var nodes []*NodeBalance
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for i := 0; i < 100; i += 1 {
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node := b.newNode(1000000)
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node.SetPriceFactors(PriceFactors{1, 0, 1}, PriceFactors{1, 0, 1})
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nodes = append(nodes, node)
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}
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// Allocate service token
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var sum uint64
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for i := 0; i < 100; i += 1 {
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amount := int64(rand.Intn(100) + 100)
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nodes[i].AddBalance(amount)
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sum += uint64(amount)
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}
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if b.bt.TotalTokenAmount() != sum {
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t.Fatalf("Invalid token amount")
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}
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// Change client status
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for i := 0; i < 100; i += 1 {
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if rand.Intn(2) == 0 {
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b.ns.SetField(nodes[i].node, ppTestSetup.CapacityField, uint64(1))
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}
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}
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if b.bt.TotalTokenAmount() != sum {
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t.Fatalf("Invalid token amount")
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}
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for i := 0; i < 100; i += 1 {
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if rand.Intn(2) == 0 {
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b.ns.SetField(nodes[i].node, ppTestSetup.CapacityField, uint64(1))
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}
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}
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if b.bt.TotalTokenAmount() != sum {
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t.Fatalf("Invalid token amount")
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}
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}
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func TestCallbackChecking(t *testing.T) {
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|
b := newBalanceTestSetup()
|
|
|
|
defer b.stop()
|
|
|
|
node := b.newNode(1000000)
|
|
|
|
node.SetPriceFactors(PriceFactors{1, 0, 1}, PriceFactors{1, 0, 1})
|
|
|
|
|
|
|
|
var inputs = []struct {
|
|
|
|
priority int64
|
|
|
|
expDiff time.Duration
|
|
|
|
}{
|
|
|
|
{500, time.Millisecond * 500},
|
|
|
|
{0, time.Second},
|
|
|
|
{-int64(time.Second), 2 * time.Second},
|
|
|
|
}
|
|
|
|
node.SetBalance(uint64(time.Second), 0)
|
|
|
|
for _, i := range inputs {
|
|
|
|
diff, _ := node.timeUntil(i.priority)
|
|
|
|
if diff != i.expDiff {
|
|
|
|
t.Fatalf("Time difference mismatch, want %v, got %v", i.expDiff, diff)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
func TestCallback(t *testing.T) {
|
|
|
|
b := newBalanceTestSetup()
|
|
|
|
defer b.stop()
|
|
|
|
node := b.newNode(1000)
|
|
|
|
node.SetPriceFactors(PriceFactors{1, 0, 1}, PriceFactors{1, 0, 1})
|
|
|
|
b.ns.SetField(node.node, ppTestSetup.CapacityField, uint64(1))
|
|
|
|
|
|
|
|
callCh := make(chan struct{}, 1)
|
|
|
|
node.SetBalance(uint64(time.Minute), 0)
|
|
|
|
node.addCallback(balanceCallbackZero, 0, func() { callCh <- struct{}{} })
|
|
|
|
|
|
|
|
b.clock.Run(time.Minute)
|
|
|
|
select {
|
|
|
|
case <-callCh:
|
|
|
|
case <-time.NewTimer(time.Second).C:
|
|
|
|
t.Fatalf("Callback hasn't been called yet")
|
|
|
|
}
|
|
|
|
|
|
|
|
node.SetBalance(uint64(time.Minute), 0)
|
|
|
|
node.addCallback(balanceCallbackZero, 0, func() { callCh <- struct{}{} })
|
|
|
|
node.removeCallback(balanceCallbackZero)
|
|
|
|
|
|
|
|
b.clock.Run(time.Minute)
|
|
|
|
select {
|
|
|
|
case <-callCh:
|
|
|
|
t.Fatalf("Callback shouldn't be called")
|
|
|
|
case <-time.NewTimer(time.Millisecond * 100).C:
|
|
|
|
}
|
|
|
|
}
|
2021-02-19 17:53:12 +03:00
|
|
|
|
|
|
|
func TestBalancePersistence(t *testing.T) {
|
|
|
|
clock := &mclock.Simulated{}
|
|
|
|
ns := nodestate.NewNodeStateMachine(nil, nil, clock, testSetup)
|
|
|
|
db := memorydb.New()
|
|
|
|
posExp := &utils.Expirer{}
|
|
|
|
negExp := &utils.Expirer{}
|
|
|
|
posExp.SetRate(clock.Now(), math.Log(2)/float64(time.Hour*2)) // halves every two hours
|
|
|
|
negExp.SetRate(clock.Now(), math.Log(2)/float64(time.Hour)) // halves every hour
|
|
|
|
bt := NewBalanceTracker(ns, btTestSetup, db, clock, posExp, negExp)
|
|
|
|
ns.Start()
|
|
|
|
bts := &balanceTestSetup{
|
|
|
|
clock: clock,
|
|
|
|
ns: ns,
|
|
|
|
bt: bt,
|
|
|
|
}
|
|
|
|
var nb *NodeBalance
|
|
|
|
exp := func(expPos, expNeg uint64) {
|
|
|
|
pos, neg := nb.GetBalance()
|
|
|
|
if pos != expPos {
|
|
|
|
t.Fatalf("Positive balance incorrect, want %v, got %v", expPos, pos)
|
|
|
|
}
|
|
|
|
if neg != expNeg {
|
|
|
|
t.Fatalf("Positive balance incorrect, want %v, got %v", expPos, pos)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
expTotal := func(expTotal uint64) {
|
|
|
|
total := bt.TotalTokenAmount()
|
|
|
|
if total != expTotal {
|
|
|
|
t.Fatalf("Total token amount incorrect, want %v, got %v", expTotal, total)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
expTotal(0)
|
|
|
|
nb = bts.newNode(0)
|
|
|
|
expTotal(0)
|
|
|
|
nb.SetBalance(16000000000, 16000000000)
|
|
|
|
exp(16000000000, 16000000000)
|
|
|
|
expTotal(16000000000)
|
|
|
|
clock.Run(time.Hour * 2)
|
|
|
|
exp(8000000000, 4000000000)
|
|
|
|
expTotal(8000000000)
|
|
|
|
bt.Stop()
|
|
|
|
ns.Stop()
|
|
|
|
|
|
|
|
clock = &mclock.Simulated{}
|
|
|
|
ns = nodestate.NewNodeStateMachine(nil, nil, clock, testSetup)
|
|
|
|
posExp = &utils.Expirer{}
|
|
|
|
negExp = &utils.Expirer{}
|
|
|
|
posExp.SetRate(clock.Now(), math.Log(2)/float64(time.Hour*2)) // halves every two hours
|
|
|
|
negExp.SetRate(clock.Now(), math.Log(2)/float64(time.Hour)) // halves every hour
|
|
|
|
bt = NewBalanceTracker(ns, btTestSetup, db, clock, posExp, negExp)
|
|
|
|
ns.Start()
|
|
|
|
bts = &balanceTestSetup{
|
|
|
|
clock: clock,
|
|
|
|
ns: ns,
|
|
|
|
bt: bt,
|
|
|
|
}
|
|
|
|
expTotal(8000000000)
|
|
|
|
nb = bts.newNode(0)
|
|
|
|
exp(8000000000, 4000000000)
|
|
|
|
expTotal(8000000000)
|
|
|
|
clock.Run(time.Hour * 2)
|
|
|
|
exp(4000000000, 1000000000)
|
|
|
|
expTotal(4000000000)
|
|
|
|
bt.Stop()
|
|
|
|
ns.Stop()
|
|
|
|
}
|