mirror of
https://github.com/rclone/rclone
synced 2024-11-13 12:09:47 +01:00
437 lines
11 KiB
Go
437 lines
11 KiB
Go
package pacer
|
|
|
|
import (
|
|
"fmt"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/ncw/rclone/fs"
|
|
"github.com/pkg/errors"
|
|
)
|
|
|
|
func TestNew(t *testing.T) {
|
|
const expectedRetries = 7
|
|
fs.Config.LowLevelRetries = expectedRetries
|
|
p := New()
|
|
if p.minSleep != 10*time.Millisecond {
|
|
t.Errorf("minSleep")
|
|
}
|
|
if p.maxSleep != 2*time.Second {
|
|
t.Errorf("maxSleep")
|
|
}
|
|
if p.sleepTime != p.minSleep {
|
|
t.Errorf("sleepTime")
|
|
}
|
|
if p.retries != expectedRetries {
|
|
t.Errorf("retries want %v got %v", expectedRetries, p.retries)
|
|
}
|
|
if p.decayConstant != 2 {
|
|
t.Errorf("decayConstant")
|
|
}
|
|
if p.attackConstant != 1 {
|
|
t.Errorf("attackConstant")
|
|
}
|
|
if cap(p.pacer) != 1 {
|
|
t.Errorf("pacer 1")
|
|
}
|
|
if len(p.pacer) != 1 {
|
|
t.Errorf("pacer 2")
|
|
}
|
|
if fmt.Sprintf("%p", p.calculatePace) != fmt.Sprintf("%p", p.defaultPacer) {
|
|
t.Errorf("calculatePace")
|
|
}
|
|
if p.maxConnections != fs.Config.Checkers+fs.Config.Transfers {
|
|
t.Errorf("maxConnections")
|
|
}
|
|
if cap(p.connTokens) != fs.Config.Checkers+fs.Config.Transfers {
|
|
t.Errorf("connTokens")
|
|
}
|
|
if p.consecutiveRetries != 0 {
|
|
t.Errorf("consecutiveRetries")
|
|
}
|
|
}
|
|
|
|
func TestSetSleep(t *testing.T) {
|
|
p := New().SetSleep(2 * time.Millisecond)
|
|
if p.sleepTime != 2*time.Millisecond {
|
|
t.Errorf("didn't set")
|
|
}
|
|
}
|
|
|
|
func TestGetSleep(t *testing.T) {
|
|
p := New().SetSleep(2 * time.Millisecond)
|
|
if p.GetSleep() != 2*time.Millisecond {
|
|
t.Errorf("didn't get")
|
|
}
|
|
}
|
|
|
|
func TestSetMinSleep(t *testing.T) {
|
|
p := New().SetMinSleep(1 * time.Millisecond)
|
|
if p.minSleep != 1*time.Millisecond {
|
|
t.Errorf("didn't set")
|
|
}
|
|
}
|
|
|
|
func TestSetMaxSleep(t *testing.T) {
|
|
p := New().SetMaxSleep(100 * time.Second)
|
|
if p.maxSleep != 100*time.Second {
|
|
t.Errorf("didn't set")
|
|
}
|
|
}
|
|
|
|
func TestMaxConnections(t *testing.T) {
|
|
p := New().SetMaxConnections(20)
|
|
if p.maxConnections != 20 {
|
|
t.Errorf("maxConnections")
|
|
}
|
|
if cap(p.connTokens) != 20 {
|
|
t.Errorf("connTokens")
|
|
}
|
|
p.SetMaxConnections(0)
|
|
if p.maxConnections != 0 {
|
|
t.Errorf("maxConnections is not 0")
|
|
}
|
|
if p.connTokens != nil {
|
|
t.Errorf("connTokens is not nil")
|
|
}
|
|
}
|
|
|
|
func TestSetDecayConstant(t *testing.T) {
|
|
p := New().SetDecayConstant(17)
|
|
if p.decayConstant != 17 {
|
|
t.Errorf("didn't set")
|
|
}
|
|
}
|
|
|
|
func TestDecay(t *testing.T) {
|
|
p := New().SetMinSleep(time.Microsecond).SetPacer(DefaultPacer).SetMaxSleep(time.Second)
|
|
for _, test := range []struct {
|
|
in time.Duration
|
|
attackConstant uint
|
|
want time.Duration
|
|
}{
|
|
{8 * time.Millisecond, 1, 4 * time.Millisecond},
|
|
{1 * time.Millisecond, 0, time.Microsecond},
|
|
{1 * time.Millisecond, 2, (3 * time.Millisecond) / 4},
|
|
{1 * time.Millisecond, 3, (7 * time.Millisecond) / 8},
|
|
} {
|
|
p.sleepTime = test.in
|
|
p.SetDecayConstant(test.attackConstant)
|
|
p.defaultPacer(false)
|
|
got := p.sleepTime
|
|
if got != test.want {
|
|
t.Errorf("bad sleep want %v got %v", test.want, got)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestSetAttackConstant(t *testing.T) {
|
|
p := New().SetAttackConstant(19)
|
|
if p.attackConstant != 19 {
|
|
t.Errorf("didn't set")
|
|
}
|
|
}
|
|
|
|
func TestAttack(t *testing.T) {
|
|
p := New().SetMinSleep(time.Microsecond).SetPacer(DefaultPacer).SetMaxSleep(time.Second)
|
|
for _, test := range []struct {
|
|
in time.Duration
|
|
attackConstant uint
|
|
want time.Duration
|
|
}{
|
|
{1 * time.Millisecond, 1, 2 * time.Millisecond},
|
|
{1 * time.Millisecond, 0, time.Second},
|
|
{1 * time.Millisecond, 2, (4 * time.Millisecond) / 3},
|
|
{1 * time.Millisecond, 3, (8 * time.Millisecond) / 7},
|
|
} {
|
|
p.sleepTime = test.in
|
|
p.SetAttackConstant(test.attackConstant)
|
|
p.defaultPacer(true)
|
|
got := p.sleepTime
|
|
if got != test.want {
|
|
t.Errorf("bad sleep want %v got %v", test.want, got)
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
func TestSetRetries(t *testing.T) {
|
|
p := New().SetRetries(18)
|
|
if p.retries != 18 {
|
|
t.Errorf("didn't set")
|
|
}
|
|
}
|
|
|
|
func TestSetPacer(t *testing.T) {
|
|
p := New().SetPacer(AmazonCloudDrivePacer)
|
|
if fmt.Sprintf("%p", p.calculatePace) != fmt.Sprintf("%p", p.acdPacer) {
|
|
t.Errorf("calculatePace is not acdPacer")
|
|
}
|
|
p.SetPacer(GoogleDrivePacer)
|
|
if fmt.Sprintf("%p", p.calculatePace) != fmt.Sprintf("%p", p.drivePacer) {
|
|
t.Errorf("calculatePace is not drivePacer")
|
|
}
|
|
p.SetPacer(DefaultPacer)
|
|
if fmt.Sprintf("%p", p.calculatePace) != fmt.Sprintf("%p", p.defaultPacer) {
|
|
t.Errorf("calculatePace is not defaultPacer")
|
|
}
|
|
}
|
|
|
|
// emptyTokens empties the pacer of all its tokens
|
|
func emptyTokens(p *Pacer) {
|
|
for len(p.pacer) != 0 {
|
|
<-p.pacer
|
|
}
|
|
for len(p.connTokens) != 0 {
|
|
<-p.connTokens
|
|
}
|
|
}
|
|
|
|
// waitForPace waits for duration for the pace to arrive
|
|
// returns the time that it arrived or a zero time
|
|
func waitForPace(p *Pacer, duration time.Duration) (when time.Time) {
|
|
select {
|
|
case <-time.After(duration):
|
|
return
|
|
case <-p.pacer:
|
|
return time.Now()
|
|
}
|
|
}
|
|
|
|
func TestBeginCall(t *testing.T) {
|
|
p := New().SetMaxConnections(10).SetMinSleep(1 * time.Millisecond)
|
|
emptyTokens(p)
|
|
go p.beginCall()
|
|
if !waitForPace(p, 10*time.Millisecond).IsZero() {
|
|
t.Errorf("beginSleep fired too early #1")
|
|
}
|
|
startTime := time.Now()
|
|
p.pacer <- struct{}{}
|
|
time.Sleep(1 * time.Millisecond)
|
|
connTime := time.Now()
|
|
p.connTokens <- struct{}{}
|
|
time.Sleep(1 * time.Millisecond)
|
|
paceTime := waitForPace(p, 10*time.Millisecond)
|
|
if paceTime.IsZero() {
|
|
t.Errorf("beginSleep didn't fire")
|
|
} else if paceTime.Sub(startTime) < 0 {
|
|
t.Errorf("pace arrived before returning pace token")
|
|
} else if paceTime.Sub(connTime) < 0 {
|
|
t.Errorf("pace arrived before sending conn token")
|
|
}
|
|
}
|
|
|
|
func TestBeginCallZeroConnections(t *testing.T) {
|
|
p := New().SetMaxConnections(0).SetMinSleep(1 * time.Millisecond)
|
|
emptyTokens(p)
|
|
go p.beginCall()
|
|
if !waitForPace(p, 10*time.Millisecond).IsZero() {
|
|
t.Errorf("beginSleep fired too early #1")
|
|
}
|
|
startTime := time.Now()
|
|
p.pacer <- struct{}{}
|
|
time.Sleep(1 * time.Millisecond)
|
|
paceTime := waitForPace(p, 10*time.Millisecond)
|
|
if paceTime.IsZero() {
|
|
t.Errorf("beginSleep didn't fire")
|
|
} else if paceTime.Sub(startTime) < 0 {
|
|
t.Errorf("pace arrived before returning pace token")
|
|
}
|
|
}
|
|
|
|
func TestDefaultPacer(t *testing.T) {
|
|
p := New().SetMinSleep(time.Millisecond).SetPacer(DefaultPacer).SetMaxSleep(time.Second).SetDecayConstant(2)
|
|
for _, test := range []struct {
|
|
in time.Duration
|
|
retry bool
|
|
want time.Duration
|
|
}{
|
|
{time.Millisecond, true, 2 * time.Millisecond},
|
|
{time.Second, true, time.Second},
|
|
{(3 * time.Second) / 4, true, time.Second},
|
|
{time.Second, false, 750 * time.Millisecond},
|
|
{1000 * time.Microsecond, false, time.Millisecond},
|
|
{1200 * time.Microsecond, false, time.Millisecond},
|
|
} {
|
|
p.sleepTime = test.in
|
|
p.defaultPacer(test.retry)
|
|
got := p.sleepTime
|
|
if got != test.want {
|
|
t.Errorf("bad sleep want %v got %v", test.want, got)
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
func TestAmazonCloudDrivePacer(t *testing.T) {
|
|
p := New().SetMinSleep(time.Millisecond).SetPacer(AmazonCloudDrivePacer).SetMaxSleep(time.Second).SetDecayConstant(2)
|
|
// Do lots of times because of the random number!
|
|
for _, test := range []struct {
|
|
in time.Duration
|
|
consecutiveRetries int
|
|
retry bool
|
|
want time.Duration
|
|
}{
|
|
{time.Millisecond, 0, true, time.Millisecond},
|
|
{10 * time.Millisecond, 0, true, time.Millisecond},
|
|
{1 * time.Second, 1, true, 500 * time.Millisecond},
|
|
{1 * time.Second, 2, true, 1 * time.Second},
|
|
{1 * time.Second, 3, true, 2 * time.Second},
|
|
{1 * time.Second, 4, true, 4 * time.Second},
|
|
{1 * time.Second, 5, true, 8 * time.Second},
|
|
{1 * time.Second, 6, true, 16 * time.Second},
|
|
{1 * time.Second, 7, true, 32 * time.Second},
|
|
{1 * time.Second, 8, true, 64 * time.Second},
|
|
{1 * time.Second, 9, true, 128 * time.Second},
|
|
{1 * time.Second, 10, true, 128 * time.Second},
|
|
{1 * time.Second, 11, true, 128 * time.Second},
|
|
} {
|
|
const n = 1000
|
|
var sum time.Duration
|
|
// measure average time over n cycles
|
|
for i := 0; i < n; i++ {
|
|
p.sleepTime = test.in
|
|
p.consecutiveRetries = test.consecutiveRetries
|
|
p.acdPacer(test.retry)
|
|
sum += p.sleepTime
|
|
}
|
|
got := sum / n
|
|
//t.Logf("%+v: got = %v", test, got)
|
|
if got < (test.want*9)/10 || got > (test.want*11)/10 {
|
|
t.Fatalf("%+v: bad sleep want %v+/-10%% got %v", test, test.want, got)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestGoogleDrivePacer(t *testing.T) {
|
|
p := New().SetMinSleep(time.Millisecond).SetPacer(GoogleDrivePacer).SetMaxSleep(time.Second).SetDecayConstant(2)
|
|
// Do lots of times because of the random number!
|
|
for _, test := range []struct {
|
|
in time.Duration
|
|
consecutiveRetries int
|
|
retry bool
|
|
want time.Duration
|
|
}{
|
|
{time.Millisecond, 0, true, time.Millisecond},
|
|
{10 * time.Millisecond, 0, true, time.Millisecond},
|
|
{1 * time.Second, 1, true, 1*time.Second + 500*time.Millisecond},
|
|
{1 * time.Second, 2, true, 2*time.Second + 500*time.Millisecond},
|
|
{1 * time.Second, 3, true, 4*time.Second + 500*time.Millisecond},
|
|
{1 * time.Second, 4, true, 8*time.Second + 500*time.Millisecond},
|
|
{1 * time.Second, 5, true, 16*time.Second + 500*time.Millisecond},
|
|
{1 * time.Second, 6, true, 16*time.Second + 500*time.Millisecond},
|
|
{1 * time.Second, 7, true, 16*time.Second + 500*time.Millisecond},
|
|
} {
|
|
const n = 1000
|
|
var sum time.Duration
|
|
// measure average time over n cycles
|
|
for i := 0; i < n; i++ {
|
|
p.sleepTime = test.in
|
|
p.consecutiveRetries = test.consecutiveRetries
|
|
p.drivePacer(test.retry)
|
|
sum += p.sleepTime
|
|
}
|
|
got := sum / n
|
|
//t.Logf("%+v: got = %v", test, got)
|
|
if got < (test.want*9)/10 || got > (test.want*11)/10 {
|
|
t.Fatalf("%+v: bad sleep want %v+/-10%% got %v", test, test.want, got)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestEndCall(t *testing.T) {
|
|
p := New().SetMaxConnections(5)
|
|
emptyTokens(p)
|
|
p.consecutiveRetries = 1
|
|
p.endCall(true)
|
|
if len(p.connTokens) != 1 {
|
|
t.Errorf("Expecting 1 token")
|
|
}
|
|
if p.consecutiveRetries != 2 {
|
|
t.Errorf("Bad consecutive retries")
|
|
}
|
|
}
|
|
|
|
func TestEndCallZeroConnections(t *testing.T) {
|
|
p := New().SetMaxConnections(0)
|
|
emptyTokens(p)
|
|
p.consecutiveRetries = 1
|
|
p.endCall(false)
|
|
if len(p.connTokens) != 0 {
|
|
t.Errorf("Expecting 0 token")
|
|
}
|
|
if p.consecutiveRetries != 0 {
|
|
t.Errorf("Bad consecutive retries")
|
|
}
|
|
}
|
|
|
|
var errFoo = errors.New("foo")
|
|
|
|
type dummyPaced struct {
|
|
retry bool
|
|
called int
|
|
}
|
|
|
|
func (dp *dummyPaced) fn() (bool, error) {
|
|
dp.called++
|
|
return dp.retry, errFoo
|
|
}
|
|
|
|
func Test_callNoRetry(t *testing.T) {
|
|
p := New().SetMinSleep(time.Millisecond).SetMaxSleep(2 * time.Millisecond)
|
|
|
|
dp := &dummyPaced{retry: false}
|
|
err := p.call(dp.fn, 10)
|
|
if dp.called != 1 {
|
|
t.Errorf("called want %d got %d", 1, dp.called)
|
|
}
|
|
if err != errFoo {
|
|
t.Errorf("err want %v got %v", errFoo, err)
|
|
}
|
|
}
|
|
|
|
func Test_callRetry(t *testing.T) {
|
|
p := New().SetMinSleep(time.Millisecond).SetMaxSleep(2 * time.Millisecond)
|
|
|
|
dp := &dummyPaced{retry: true}
|
|
err := p.call(dp.fn, 10)
|
|
if dp.called != 10 {
|
|
t.Errorf("called want %d got %d", 10, dp.called)
|
|
}
|
|
if err == errFoo {
|
|
t.Errorf("err didn't want %v got %v", errFoo, err)
|
|
}
|
|
_, ok := err.(fs.Retrier)
|
|
if !ok {
|
|
t.Errorf("didn't return a retry error")
|
|
}
|
|
}
|
|
|
|
func TestCall(t *testing.T) {
|
|
p := New().SetMinSleep(time.Millisecond).SetMaxSleep(2 * time.Millisecond).SetRetries(20)
|
|
|
|
dp := &dummyPaced{retry: true}
|
|
err := p.Call(dp.fn)
|
|
if dp.called != 20 {
|
|
t.Errorf("called want %d got %d", 20, dp.called)
|
|
}
|
|
_, ok := err.(fs.Retrier)
|
|
if !ok {
|
|
t.Errorf("didn't return a retry error")
|
|
}
|
|
}
|
|
|
|
func TestCallNoRetry(t *testing.T) {
|
|
p := New().SetMinSleep(time.Millisecond).SetMaxSleep(2 * time.Millisecond).SetRetries(20)
|
|
|
|
dp := &dummyPaced{retry: true}
|
|
err := p.CallNoRetry(dp.fn)
|
|
if dp.called != 1 {
|
|
t.Errorf("called want %d got %d", 1, dp.called)
|
|
}
|
|
_, ok := err.(fs.Retrier)
|
|
if !ok {
|
|
t.Errorf("didn't return a retry error")
|
|
}
|
|
}
|