plugeth/les/balance_test.go
gary rong 0ce5e113be les: rework clientpool (#20077)
* les: rework clientpool
2019-11-02 13:02:35 +01:00

261 lines
7.2 KiB
Go

// Copyright 2019 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package les
import (
"testing"
"time"
"github.com/ethereum/go-ethereum/common/mclock"
)
func TestSetBalance(t *testing.T) {
var clock = &mclock.Simulated{}
var inputs = []struct {
pos uint64
neg uint64
}{
{1000, 0},
{0, 1000},
{1000, 1000},
}
tracker := balanceTracker{}
tracker.init(clock, 1000)
defer tracker.stop(clock.Now())
for _, i := range inputs {
tracker.setBalance(i.pos, i.neg)
pos, neg := tracker.getBalance(clock.Now())
if pos != i.pos {
t.Fatalf("Positive balance mismatch, want %v, got %v", i.pos, pos)
}
if neg != i.neg {
t.Fatalf("Negative balance mismatch, want %v, got %v", i.neg, neg)
}
}
}
func TestBalanceTimeCost(t *testing.T) {
var (
clock = &mclock.Simulated{}
tracker = balanceTracker{}
)
tracker.init(clock, 1000)
defer tracker.stop(clock.Now())
tracker.setFactors(false, 1, 1)
tracker.setFactors(true, 1, 1)
tracker.setBalance(uint64(time.Minute), 0) // 1 minute time allowance
var inputs = []struct {
runTime time.Duration
expPos uint64
expNeg uint64
}{
{time.Second, uint64(time.Second * 59), 0},
{0, uint64(time.Second * 59), 0},
{time.Second * 59, 0, 0},
{time.Second, 0, uint64(time.Second)},
}
for _, i := range inputs {
clock.Run(i.runTime)
if pos, _ := tracker.getBalance(clock.Now()); pos != i.expPos {
t.Fatalf("Positive balance mismatch, want %v, got %v", i.expPos, pos)
}
if _, neg := tracker.getBalance(clock.Now()); neg != i.expNeg {
t.Fatalf("Negative balance mismatch, want %v, got %v", i.expNeg, neg)
}
}
tracker.setBalance(uint64(time.Minute), 0) // Refill 1 minute time allowance
for _, i := range inputs {
clock.Run(i.runTime)
if pos, _ := tracker.getBalance(clock.Now()); pos != i.expPos {
t.Fatalf("Positive balance mismatch, want %v, got %v", i.expPos, pos)
}
if _, neg := tracker.getBalance(clock.Now()); neg != i.expNeg {
t.Fatalf("Negative balance mismatch, want %v, got %v", i.expNeg, neg)
}
}
}
func TestBalanceReqCost(t *testing.T) {
var (
clock = &mclock.Simulated{}
tracker = balanceTracker{}
)
tracker.init(clock, 1000)
defer tracker.stop(clock.Now())
tracker.setFactors(false, 1, 1)
tracker.setFactors(true, 1, 1)
tracker.setBalance(uint64(time.Minute), 0) // 1 minute time serving time allowance
var inputs = []struct {
reqCost uint64
expPos uint64
expNeg uint64
}{
{uint64(time.Second), uint64(time.Second * 59), 0},
{0, uint64(time.Second * 59), 0},
{uint64(time.Second * 59), 0, 0},
{uint64(time.Second), 0, uint64(time.Second)},
}
for _, i := range inputs {
tracker.requestCost(i.reqCost)
if pos, _ := tracker.getBalance(clock.Now()); pos != i.expPos {
t.Fatalf("Positive balance mismatch, want %v, got %v", i.expPos, pos)
}
if _, neg := tracker.getBalance(clock.Now()); neg != i.expNeg {
t.Fatalf("Negative balance mismatch, want %v, got %v", i.expNeg, neg)
}
}
}
func TestBalanceToPriority(t *testing.T) {
var (
clock = &mclock.Simulated{}
tracker = balanceTracker{}
)
tracker.init(clock, 1000) // cap = 1000
defer tracker.stop(clock.Now())
tracker.setFactors(false, 1, 1)
tracker.setFactors(true, 1, 1)
var inputs = []struct {
pos uint64
neg uint64
priority int64
}{
{1000, 0, ^int64(1)},
{2000, 0, ^int64(2)}, // Higher balance, lower priority value
{0, 0, 0},
{0, 1000, 1000},
}
for _, i := range inputs {
tracker.setBalance(i.pos, i.neg)
priority := tracker.getPriority(clock.Now())
if priority != i.priority {
t.Fatalf("Priority mismatch, want %v, got %v", i.priority, priority)
}
}
}
func TestEstimatedPriority(t *testing.T) {
var (
clock = &mclock.Simulated{}
tracker = balanceTracker{}
)
tracker.init(clock, 1000000000) // cap = 1000,000,000
defer tracker.stop(clock.Now())
tracker.setFactors(false, 1, 1)
tracker.setFactors(true, 1, 1)
tracker.setBalance(uint64(time.Minute), 0)
var inputs = []struct {
runTime time.Duration // time cost
futureTime time.Duration // diff of future time
reqCost uint64 // single request cost
priority int64 // expected estimated priority
}{
{time.Second, time.Second, 0, ^int64(58)},
{0, time.Second, 0, ^int64(58)},
// 2 seconds time cost, 1 second estimated time cost, 10^9 request cost,
// 10^9 estimated request cost per second.
{time.Second, time.Second, 1000000000, ^int64(55)},
// 3 seconds time cost, 3 second estimated time cost, 10^9*2 request cost,
// 4*10^9 estimated request cost.
{time.Second, 3 * time.Second, 1000000000, ^int64(48)},
// All positive balance is used up
{time.Second * 55, 0, 0, 0},
// 1 minute estimated time cost, 4/58 * 10^9 estimated request cost per sec.
{0, time.Minute, 0, int64(time.Minute) + int64(time.Second)*120/29},
}
for _, i := range inputs {
clock.Run(i.runTime)
tracker.requestCost(i.reqCost)
priority := tracker.estimatedPriority(clock.Now()+mclock.AbsTime(i.futureTime), true)
if priority != i.priority {
t.Fatalf("Estimated priority mismatch, want %v, got %v", i.priority, priority)
}
}
}
func TestCallbackChecking(t *testing.T) {
var (
clock = &mclock.Simulated{}
tracker = balanceTracker{}
)
tracker.init(clock, 1000000) // cap = 1000,000
defer tracker.stop(clock.Now())
tracker.setFactors(false, 1, 1)
tracker.setFactors(true, 1, 1)
var inputs = []struct {
priority int64
expDiff time.Duration
}{
{^int64(500), time.Millisecond * 500},
{0, time.Second},
{int64(time.Second), 2 * time.Second},
}
tracker.setBalance(uint64(time.Second), 0)
for _, i := range inputs {
diff, _ := tracker.timeUntil(i.priority)
if diff != i.expDiff {
t.Fatalf("Time difference mismatch, want %v, got %v", i.expDiff, diff)
}
}
}
func TestCallback(t *testing.T) {
var (
clock = &mclock.Simulated{}
tracker = balanceTracker{}
)
tracker.init(clock, 1000) // cap = 1000
defer tracker.stop(clock.Now())
tracker.setFactors(false, 1, 1)
tracker.setFactors(true, 1, 1)
callCh := make(chan struct{}, 1)
tracker.setBalance(uint64(time.Minute), 0)
tracker.addCallback(balanceCallbackZero, 0, func() { callCh <- struct{}{} })
clock.Run(time.Minute)
select {
case <-callCh:
case <-time.NewTimer(time.Second).C:
t.Fatalf("Callback hasn't been called yet")
}
tracker.setBalance(uint64(time.Minute), 0)
tracker.addCallback(balanceCallbackZero, 0, func() { callCh <- struct{}{} })
tracker.removeCallback(balanceCallbackZero)
clock.Run(time.Minute)
select {
case <-callCh:
t.Fatalf("Callback shouldn't be called")
case <-time.NewTimer(time.Millisecond * 100).C:
}
}