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async_test.go
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async_test.go
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package async_test
import (
"context"
"errors"
"net/http"
"os"
"os/signal"
"syscall"
"testing"
"time"
"github.com/jharshman/async"
)
func Test_RunWithClose(t *testing.T) {
s := http.Server{
Addr: ":8080",
Handler: http.DefaultServeMux,
}
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
w.Write([]byte("OK"))
})
job := async.Job{
Run: func() error {
return s.ListenAndServe()
},
Close: func() error {
return s.Shutdown(context.Background())
},
}
sig, ack, err := job.RunWithClose()
closeChan := make(chan os.Signal, 1)
signal.Notify(closeChan, syscall.SIGTERM, syscall.SIGINT)
// go routine to notify close after short wait
go func() {
<-time.After(time.Second * 5)
syscall.Kill(syscall.Getpid(), syscall.SIGINT)
}()
LOOP:
for {
select {
case <-closeChan:
sig <- 1
break LOOP
case <-ack:
break LOOP
case e := <-err:
t.Errorf("%v\n", e)
break LOOP
}
}
}
func TestJob_Execute(t *testing.T) {
s := http.Server{
Addr: ":8080",
Handler: http.DefaultServeMux,
}
http.HandleFunc("/foo", func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
w.Write([]byte("OK"))
})
job := async.Job{
Run: func() error {
return s.ListenAndServe()
},
Close: func() error {
return s.Shutdown(context.Background())
},
Signals: []os.Signal{syscall.SIGINT},
}
// go routine to notify close after short wait
go func() {
<-time.After(time.Second * 5)
syscall.Kill(syscall.Getpid(), syscall.SIGINT)
}()
err := job.Execute()
if err != nil {
t.Error(err)
}
}
func TestJob_ExecuteRunWithErrors(t *testing.T) {
job := async.Job{
Run: func() error {
return errors.New("some error")
},
Close: func() error {
return nil
},
Signals: []os.Signal{syscall.SIGINT},
}
// go routine to notify close after short wait
go func() {
<-time.After(time.Second * 5)
syscall.Kill(syscall.Getpid(), syscall.SIGINT)
}()
// error expected here
err := job.Execute()
if err == nil {
t.Error(err)
}
}
func TestJob_ExecuteCloseWithErrors(t *testing.T) {
job := async.Job{
Run: func() error {
return nil
},
Close: func() error {
return errors.New("some error")
},
Signals: []os.Signal{syscall.SIGINT},
}
// go routine to notify close after short wait
go func() {
<-time.After(time.Second * 5)
syscall.Kill(syscall.Getpid(), syscall.SIGINT)
}()
// error expected here
err := job.Execute()
if err == nil {
t.Error(err)
}
}
func TestJob_ExecuteNoCloseDefined(t *testing.T) {
job := async.Job{
Run: func() error {
return nil
},
Signals: []os.Signal{syscall.SIGINT},
}
// error expected here
err := job.Execute()
if err == nil {
t.Error(err)
}
}
func TestJob_ExecuteNoRunDefined(t *testing.T) {
job := async.Job{
Close: func() error {
return nil
},
Signals: []os.Signal{syscall.SIGINT},
}
// error expected here
err := job.Execute()
if err == nil {
t.Error(err)
}
}
func TestJob_SignalToClose(t *testing.T) {
job := async.Job{
Run: func() error {
return nil
},
Close: func() error {
return nil
},
Signals: []os.Signal{syscall.SIGINT},
}
// go routine to notify close after short wait
go func() {
<-time.After(time.Second * 5)
job.SignalToClose()
}()
err := job.Execute()
if err != nil {
t.Error(err)
}
}