forked from mirror/ants
327 lines
8.5 KiB
Go
327 lines
8.5 KiB
Go
// MIT License
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// Copyright (c) 2018 Andy Pan
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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package ants_test
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import (
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"runtime"
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"sync"
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"sync/atomic"
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"testing"
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"time"
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"github.com/panjf2000/ants"
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)
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const (
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_ = 1 << (10 * iota)
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KiB // 1024
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MiB // 1048576
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GiB // 1073741824
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TiB // 1099511627776 (超过了int32的范围)
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PiB // 1125899906842624
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EiB // 1152921504606846976
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ZiB // 1180591620717411303424 (超过了int64的范围)
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YiB // 1208925819614629174706176
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)
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const (
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Param = 100
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AntsSize = 1000
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TestSize = 10000
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n = 100000
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)
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func SkipIfNotMultiCores(t *testing.T) {
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if runtime.GOMAXPROCS(0) == 1 {
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t.SkipNow()
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}
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}
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var curMem uint64
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// TestAntsPoolWaitToGetWorker is used to test waiting to get worker.
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func TestAntsPoolWaitToGetWorker(t *testing.T) {
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SkipIfNotMultiCores(t)
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var wg sync.WaitGroup
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p, _ := ants.NewPool(AntsSize)
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defer p.Release()
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for i := 0; i < n; i++ {
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wg.Add(1)
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p.Submit(func() {
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demoPoolFunc(Param)
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wg.Done()
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})
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}
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wg.Wait()
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t.Logf("pool, running workers number:%d", p.Running())
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mem := runtime.MemStats{}
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runtime.ReadMemStats(&mem)
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curMem = mem.TotalAlloc/MiB - curMem
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t.Logf("memory usage:%d MB", curMem)
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}
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// TestAntsPoolWithFuncWaitToGetWorker is used to test waiting to get worker.
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func TestAntsPoolWithFuncWaitToGetWorker(t *testing.T) {
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SkipIfNotMultiCores(t)
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var wg sync.WaitGroup
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p, _ := ants.NewPoolWithFunc(AntsSize, func(i interface{}) {
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demoPoolFunc(i)
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wg.Done()
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})
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defer p.Release()
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for i := 0; i < n; i++ {
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wg.Add(1)
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p.Serve(Param)
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}
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wg.Wait()
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t.Logf("pool with func, running workers number:%d", p.Running())
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mem := runtime.MemStats{}
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runtime.ReadMemStats(&mem)
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curMem = mem.TotalAlloc/MiB - curMem
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t.Logf("memory usage:%d MB", curMem)
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}
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// TestAntsPoolGetWorkerFromCache is used to test getting worker from sync.Pool.
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func TestAntsPoolGetWorkerFromCache(t *testing.T) {
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SkipIfNotMultiCores(t)
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p, _ := ants.NewPool(TestSize)
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defer p.Release()
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for i := 0; i < AntsSize; i++ {
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p.Submit(demoFunc)
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}
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time.Sleep(2 * ants.DefaultCleanIntervalTime * time.Second)
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p.Submit(demoFunc)
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t.Logf("pool, running workers number:%d", p.Running())
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mem := runtime.MemStats{}
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runtime.ReadMemStats(&mem)
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curMem = mem.TotalAlloc/MiB - curMem
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t.Logf("memory usage:%d MB", curMem)
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}
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// TestAntsPoolWithFuncGetWorkerFromCache is used to test getting worker from sync.Pool.
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func TestAntsPoolWithFuncGetWorkerFromCache(t *testing.T) {
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SkipIfNotMultiCores(t)
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dur := 10
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p, _ := ants.NewPoolWithFunc(TestSize, demoPoolFunc)
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defer p.Release()
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for i := 0; i < AntsSize; i++ {
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p.Serve(dur)
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}
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time.Sleep(2 * ants.DefaultCleanIntervalTime * time.Second)
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p.Serve(dur)
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t.Logf("pool with func, running workers number:%d", p.Running())
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mem := runtime.MemStats{}
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runtime.ReadMemStats(&mem)
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curMem = mem.TotalAlloc/MiB - curMem
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t.Logf("memory usage:%d MB", curMem)
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}
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//-------------------------------------------------------------------------------------------
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// Contrast between goroutines without a pool and goroutines with ants pool.
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//-------------------------------------------------------------------------------------------
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func TestNoPool(t *testing.T) {
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SkipIfNotMultiCores(t)
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var wg sync.WaitGroup
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for i := 0; i < n; i++ {
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wg.Add(1)
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go func() {
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demoFunc()
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wg.Done()
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}()
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}
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wg.Wait()
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mem := runtime.MemStats{}
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runtime.ReadMemStats(&mem)
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curMem = mem.TotalAlloc/MiB - curMem
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t.Logf("memory usage:%d MB", curMem)
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}
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func TestAntsPool(t *testing.T) {
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SkipIfNotMultiCores(t)
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defer ants.Release()
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var wg sync.WaitGroup
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for i := 0; i < n; i++ {
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wg.Add(1)
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ants.Submit(func() {
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demoFunc()
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wg.Done()
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})
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}
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wg.Wait()
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t.Logf("pool, capacity:%d", ants.Cap())
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t.Logf("pool, running workers number:%d", ants.Running())
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t.Logf("pool, free workers number:%d", ants.Free())
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mem := runtime.MemStats{}
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runtime.ReadMemStats(&mem)
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curMem = mem.TotalAlloc/MiB - curMem
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t.Logf("memory usage:%d MB", curMem)
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}
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//-------------------------------------------------------------------------------------------
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//-------------------------------------------------------------------------------------------
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func TestPanicHandler(t *testing.T) {
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SkipIfNotMultiCores(t)
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p0, err := ants.NewPool(10)
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if err != nil {
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t.Fatalf("create new pool failed: %s", err.Error())
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}
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defer p0.Release()
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var panicCounter int64
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var wg sync.WaitGroup
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p0.PanicHandler = func(p interface{}) {
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defer wg.Done()
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atomic.AddInt64(&panicCounter, 1)
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t.Logf("catch panic with PanicHandler: %v", p)
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}
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wg.Add(1)
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p0.Submit(func() {
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panic("Oops!")
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})
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wg.Wait()
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c := atomic.LoadInt64(&panicCounter)
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if c != 1 {
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t.Errorf("panic handler didn't work, panicCounter: %d", c)
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}
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if p0.Running() != 0 {
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t.Errorf("pool should be empty after panic")
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}
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p1, err := ants.NewPoolWithFunc(10, func(p interface{}) {
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panic(p)
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})
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if err != nil {
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t.Fatalf("create new pool with func failed: %s", err.Error())
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}
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defer p1.Release()
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p1.PanicHandler = func(p interface{}) {
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defer wg.Done()
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atomic.AddInt64(&panicCounter, 1)
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}
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wg.Add(1)
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p1.Serve("Oops!")
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wg.Wait()
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c = atomic.LoadInt64(&panicCounter)
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if c != 2 {
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t.Errorf("panic handler didn't work, panicCounter: %d", c)
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}
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if p1.Running() != 0 {
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t.Errorf("pool should be empty after panic")
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}
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}
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func TestPoolPanicWithoutHandler(t *testing.T) {
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SkipIfNotMultiCores(t)
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p0, err := ants.NewPool(10)
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if err != nil {
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t.Fatalf("create new pool failed: %s", err.Error())
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}
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defer p0.Release()
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p0.Submit(func() {
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panic("Oops!")
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})
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p1, err := ants.NewPoolWithFunc(10, func(p interface{}) {
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panic(p)
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})
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if err != nil {
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t.Fatalf("create new pool with func failed: %s", err.Error())
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}
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defer p1.Release()
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p1.Serve("Oops!")
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}
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func TestPurge(t *testing.T) {
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SkipIfNotMultiCores(t)
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p, err := ants.NewTimingPool(10, 1)
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defer p.Release()
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if err != nil {
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t.Fatalf("create TimingPool failed: %s", err.Error())
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}
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p.Submit(demoFunc)
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time.Sleep(ants.DefaultCleanIntervalTime * time.Second)
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if p.Running() != 0 {
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t.Error("all p should be purged")
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}
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p1, err := ants.NewTimingPoolWithFunc(10, 1, demoPoolFunc)
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defer p1.Release()
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if err != nil {
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t.Fatalf("create TimingPoolWithFunc failed: %s", err.Error())
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}
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p1.Serve(1)
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time.Sleep(ants.DefaultCleanIntervalTime * time.Second)
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if p.Running() != 0 {
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t.Error("all p should be purged")
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}
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}
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func TestRestCodeCoverage(t *testing.T) {
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SkipIfNotMultiCores(t)
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_, err := ants.NewTimingPool(-1, -1)
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t.Log(err)
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_, err = ants.NewTimingPool(1, -1)
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t.Log(err)
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_, err = ants.NewTimingPoolWithFunc(-1, -1, demoPoolFunc)
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t.Log(err)
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_, err = ants.NewTimingPoolWithFunc(1, -1, demoPoolFunc)
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t.Log(err)
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p0, _ := ants.NewPool(TestSize)
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defer p0.Submit(demoFunc)
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defer p0.Release()
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for i := 0; i < n; i++ {
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p0.Submit(demoFunc)
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}
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t.Logf("pool, capacity:%d", p0.Cap())
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t.Logf("pool, running workers number:%d", p0.Running())
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t.Logf("pool, free workers number:%d", p0.Free())
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p0.Tune(TestSize)
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p0.Tune(AntsSize)
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t.Logf("pool, after tuning capacity, capacity:%d, running:%d", p0.Cap(), p0.Running())
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p, _ := ants.NewPoolWithFunc(TestSize, demoPoolFunc)
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defer p.Serve(Param)
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defer p.Release()
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for i := 0; i < n; i++ {
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p.Serve(Param)
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}
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time.Sleep(ants.DefaultCleanIntervalTime * time.Second)
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t.Logf("pool with func, capacity:%d", p.Cap())
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t.Logf("pool with func, running workers number:%d", p.Running())
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t.Logf("pool with func, free workers number:%d", p.Free())
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p.Tune(TestSize)
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p.Tune(AntsSize)
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t.Logf("pool with func, after tuning capacity, capacity:%d, running:%d", p.Cap(), p.Running())
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}
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func TestInSingleCore(t *testing.T) {
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t.Log("workerChanCap in ants tested.")
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}
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