You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
311 lines
6.0 KiB
311 lines
6.0 KiB
package clist
|
|
|
|
import (
|
|
"fmt"
|
|
"runtime"
|
|
"sync/atomic"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
tmrand "github.com/tendermint/tendermint/libs/rand"
|
|
)
|
|
|
|
func TestPanicOnMaxLength(t *testing.T) {
|
|
maxLength := 1000
|
|
|
|
l := newWithMax(maxLength)
|
|
for i := 0; i < maxLength; i++ {
|
|
l.PushBack(1)
|
|
}
|
|
assert.Panics(t, func() {
|
|
l.PushBack(1)
|
|
})
|
|
}
|
|
|
|
func TestSmall(t *testing.T) {
|
|
l := New()
|
|
el1 := l.PushBack(1)
|
|
el2 := l.PushBack(2)
|
|
el3 := l.PushBack(3)
|
|
if l.Len() != 3 {
|
|
t.Error("Expected len 3, got ", l.Len())
|
|
}
|
|
|
|
//fmt.Printf("%p %v\n", el1, el1)
|
|
//fmt.Printf("%p %v\n", el2, el2)
|
|
//fmt.Printf("%p %v\n", el3, el3)
|
|
|
|
r1 := l.Remove(el1)
|
|
|
|
//fmt.Printf("%p %v\n", el1, el1)
|
|
//fmt.Printf("%p %v\n", el2, el2)
|
|
//fmt.Printf("%p %v\n", el3, el3)
|
|
|
|
r2 := l.Remove(el2)
|
|
|
|
//fmt.Printf("%p %v\n", el1, el1)
|
|
//fmt.Printf("%p %v\n", el2, el2)
|
|
//fmt.Printf("%p %v\n", el3, el3)
|
|
|
|
r3 := l.Remove(el3)
|
|
|
|
if r1 != 1 {
|
|
t.Error("Expected 1, got ", r1)
|
|
}
|
|
if r2 != 2 {
|
|
t.Error("Expected 2, got ", r2)
|
|
}
|
|
if r3 != 3 {
|
|
t.Error("Expected 3, got ", r3)
|
|
}
|
|
if l.Len() != 0 {
|
|
t.Error("Expected len 0, got ", l.Len())
|
|
}
|
|
|
|
}
|
|
|
|
// This test is quite hacky because it relies on SetFinalizer
|
|
// which isn't guaranteed to run at all.
|
|
//nolint:unused,deadcode
|
|
func _TestGCFifo(t *testing.T) {
|
|
if runtime.GOARCH != "amd64" {
|
|
t.Skipf("Skipping on non-amd64 machine")
|
|
}
|
|
|
|
const numElements = 1000000
|
|
l := New()
|
|
gcCount := new(uint64)
|
|
|
|
// SetFinalizer doesn't work well with circular structures,
|
|
// so we construct a trivial non-circular structure to
|
|
// track.
|
|
type value struct {
|
|
Int int
|
|
}
|
|
done := make(chan struct{})
|
|
|
|
for i := 0; i < numElements; i++ {
|
|
v := new(value)
|
|
v.Int = i
|
|
l.PushBack(v)
|
|
runtime.SetFinalizer(v, func(v *value) {
|
|
atomic.AddUint64(gcCount, 1)
|
|
})
|
|
}
|
|
|
|
for el := l.Front(); el != nil; {
|
|
l.Remove(el)
|
|
//oldEl := el
|
|
el = el.Next()
|
|
//oldEl.DetachPrev()
|
|
//oldEl.DetachNext()
|
|
}
|
|
|
|
runtime.GC()
|
|
time.Sleep(time.Second * 3)
|
|
runtime.GC()
|
|
time.Sleep(time.Second * 3)
|
|
_ = done
|
|
|
|
if *gcCount != numElements {
|
|
t.Errorf("expected gcCount to be %v, got %v", numElements,
|
|
*gcCount)
|
|
}
|
|
}
|
|
|
|
// This test is quite hacky because it relies on SetFinalizer
|
|
// which isn't guaranteed to run at all.
|
|
//nolint:unused,deadcode
|
|
func _TestGCRandom(t *testing.T) {
|
|
if runtime.GOARCH != "amd64" {
|
|
t.Skipf("Skipping on non-amd64 machine")
|
|
}
|
|
|
|
const numElements = 1000000
|
|
l := New()
|
|
gcCount := 0
|
|
|
|
// SetFinalizer doesn't work well with circular structures,
|
|
// so we construct a trivial non-circular structure to
|
|
// track.
|
|
type value struct {
|
|
Int int
|
|
}
|
|
|
|
for i := 0; i < numElements; i++ {
|
|
v := new(value)
|
|
v.Int = i
|
|
l.PushBack(v)
|
|
runtime.SetFinalizer(v, func(v *value) {
|
|
gcCount++
|
|
})
|
|
}
|
|
|
|
els := make([]*CElement, 0, numElements)
|
|
for el := l.Front(); el != nil; el = el.Next() {
|
|
els = append(els, el)
|
|
}
|
|
|
|
for _, i := range tmrand.Perm(numElements) {
|
|
el := els[i]
|
|
l.Remove(el)
|
|
_ = el.Next()
|
|
}
|
|
|
|
runtime.GC()
|
|
time.Sleep(time.Second * 3)
|
|
|
|
if gcCount != numElements {
|
|
t.Errorf("expected gcCount to be %v, got %v", numElements,
|
|
gcCount)
|
|
}
|
|
}
|
|
|
|
func TestScanRightDeleteRandom(t *testing.T) {
|
|
|
|
const numElements = 1000
|
|
const numTimes = 100
|
|
const numScanners = 10
|
|
|
|
l := New()
|
|
stop := make(chan struct{})
|
|
|
|
els := make([]*CElement, numElements)
|
|
for i := 0; i < numElements; i++ {
|
|
el := l.PushBack(i)
|
|
els[i] = el
|
|
}
|
|
|
|
// Launch scanner routines that will rapidly iterate over elements.
|
|
for i := 0; i < numScanners; i++ {
|
|
go func(scannerID int) {
|
|
var el *CElement
|
|
restartCounter := 0
|
|
counter := 0
|
|
FOR_LOOP:
|
|
for {
|
|
select {
|
|
case <-stop:
|
|
fmt.Println("stopped")
|
|
break FOR_LOOP
|
|
default:
|
|
}
|
|
if el == nil {
|
|
el = l.FrontWait()
|
|
restartCounter++
|
|
}
|
|
el = el.Next()
|
|
counter++
|
|
}
|
|
fmt.Printf("Scanner %v restartCounter: %v counter: %v\n", scannerID, restartCounter, counter)
|
|
}(i)
|
|
}
|
|
|
|
// Remove an element, push back an element.
|
|
for i := 0; i < numTimes; i++ {
|
|
// Pick an element to remove
|
|
rmElIdx := tmrand.Intn(len(els))
|
|
rmEl := els[rmElIdx]
|
|
|
|
// Remove it
|
|
l.Remove(rmEl)
|
|
//fmt.Print(".")
|
|
|
|
// Insert a new element
|
|
newEl := l.PushBack(-1*i - 1)
|
|
els[rmElIdx] = newEl
|
|
|
|
if i%100000 == 0 {
|
|
fmt.Printf("Pushed %vK elements so far...\n", i/1000)
|
|
}
|
|
|
|
}
|
|
|
|
// Stop scanners
|
|
close(stop)
|
|
// time.Sleep(time.Second * 1)
|
|
|
|
// And remove all the elements.
|
|
for el := l.Front(); el != nil; el = el.Next() {
|
|
l.Remove(el)
|
|
}
|
|
if l.Len() != 0 {
|
|
t.Fatal("Failed to remove all elements from CList")
|
|
}
|
|
}
|
|
|
|
func TestWaitChan(t *testing.T) {
|
|
l := New()
|
|
ch := l.WaitChan()
|
|
|
|
// 1) add one element to an empty list
|
|
go l.PushBack(1)
|
|
<-ch
|
|
|
|
// 2) and remove it
|
|
el := l.Front()
|
|
v := l.Remove(el)
|
|
if v != 1 {
|
|
t.Fatal("where is 1 coming from?")
|
|
}
|
|
|
|
// 3) test iterating forward and waiting for Next (NextWaitChan and Next)
|
|
el = l.PushBack(0)
|
|
|
|
done := make(chan struct{})
|
|
pushed := 0
|
|
go func() {
|
|
for i := 1; i < 100; i++ {
|
|
l.PushBack(i)
|
|
pushed++
|
|
time.Sleep(time.Duration(tmrand.Intn(25)) * time.Millisecond)
|
|
}
|
|
// apply a deterministic pause so the counter has time to catch up
|
|
time.Sleep(25 * time.Millisecond)
|
|
close(done)
|
|
}()
|
|
|
|
next := el
|
|
seen := 0
|
|
FOR_LOOP:
|
|
for {
|
|
select {
|
|
case <-next.NextWaitChan():
|
|
next = next.Next()
|
|
seen++
|
|
if next == nil {
|
|
t.Fatal("Next should not be nil when waiting on NextWaitChan")
|
|
}
|
|
case <-done:
|
|
break FOR_LOOP
|
|
case <-time.After(10 * time.Second):
|
|
t.Fatal("max execution time")
|
|
}
|
|
}
|
|
|
|
if pushed != seen {
|
|
t.Fatalf("number of pushed items (%d) not equal to number of seen items (%d)", pushed, seen)
|
|
}
|
|
|
|
// 4) test iterating backwards (PrevWaitChan and Prev)
|
|
prev := next
|
|
seen = 0
|
|
FOR_LOOP2:
|
|
for {
|
|
select {
|
|
case <-prev.PrevWaitChan():
|
|
prev = prev.Prev()
|
|
seen++
|
|
if prev == nil {
|
|
t.Fatal("expected PrevWaitChan to block forever on nil when reached first elem")
|
|
}
|
|
case <-time.After(3 * time.Second):
|
|
break FOR_LOOP2
|
|
}
|
|
}
|
|
|
|
if pushed != seen {
|
|
t.Fatalf("number of pushed items (%d) not equal to number of seen items (%d)", pushed, seen)
|
|
}
|
|
}
|