112 lines
1.6 KiB
Go
112 lines
1.6 KiB
Go
/*
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* @Author: your name
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* @Date: 2021-08-02 00:02:17
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* @LastEditTime: 2021-08-02 00:32:36
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* @LastEditors: Please set LastEditors
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* @Description: In User Settings Edit
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* @FilePath: \background\test\goroutine_test.go
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*/
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package test
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import (
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"context"
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"sync"
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"testing"
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"time"
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)
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func TestWaitGroup(t *testing.T) {
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var wg sync.WaitGroup
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wg.Add(2)
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go func () {
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time.Sleep(3*time.Second)
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t.Logf("job 1 done")
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wg.Done()
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}()
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go func () {
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time.Sleep(2 * time.Second)
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t.Logf("job 2 done")
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wg.Done()
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}()
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wg.Wait()
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t.Log("all finish")
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}
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func TestChanel(t *testing.T){
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exit := make(chan bool)
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go func () {
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for {
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select {
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case <-exit:
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t.Logf("exit 1")
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return
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case <- time.After(1 * time.Second) :
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t.Logf("time out ")
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}
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}
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}()
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go func () {
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for {
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select {
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case <-exit:
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t.Logf("exit 2")
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return
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case <- time.After(1 * time.Second) :
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t.Logf("time out ")
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}
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}
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}()
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time.Sleep(5 * time.Second)
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exit <- true
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t.Logf("finish")
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}
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func TestContext(t *testing.T){
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ctx,cancel := context.WithCancel(context.Background())
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go func () {
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for {
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select {
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case <-ctx.Done():
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t.Logf("exit")
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return
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case <- time.After(1 * time.Second) :
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t.Logf("time out ")
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}
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}
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}()
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go func () {
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for {
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select {
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case <-ctx.Done():
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t.Logf("exit")
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return
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case <- time.After(1 * time.Second) :
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t.Logf("time out ")
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}
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}
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}()
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go func () {
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for {
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select {
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case <-ctx.Done():
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t.Logf("exit")
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return
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case <- time.After(1 * time.Second) :
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t.Logf("time out ")
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}
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}
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}()
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time.Sleep(5 * time.Second)
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cancel()
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t.Logf("finish")
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} |