netbird/management/server/scheduler_test.go

120 lines
3.0 KiB
Go

package server
import (
"context"
"fmt"
"math/rand"
"runtime"
"sync"
"testing"
"time"
"github.com/stretchr/testify/assert"
)
func TestScheduler_Performance(t *testing.T) {
scheduler := NewDefaultScheduler()
n := 500
wg := &sync.WaitGroup{}
wg.Add(n)
maxMs := 500
minMs := 50
for i := 0; i < n; i++ {
millis := time.Duration(rand.Intn(maxMs-minMs)+minMs) * time.Millisecond
go scheduler.Schedule(context.Background(), millis, fmt.Sprintf("test-scheduler-job-%d", i), func() (nextRunIn time.Duration, reschedule bool) {
time.Sleep(millis)
wg.Done()
return 0, false
})
}
timeout := 3 * time.Second
if runtime.GOOS == "windows" {
// sleep and ticker are slower on windows see https://github.com/golang/go/issues/44343
timeout = 5 * time.Second
}
failed := waitTimeout(wg, timeout)
if failed {
t.Fatal("timed out while waiting for test to finish")
return
}
assert.Len(t, scheduler.jobs, 0)
}
func TestScheduler_Cancel(t *testing.T) {
jobID1 := "test-scheduler-job-1"
jobID2 := "test-scheduler-job-2"
scheduler := NewDefaultScheduler()
tChan := make(chan struct{})
p := []string{jobID1, jobID2}
scheduletime := 2 * time.Millisecond
sleepTime := 4 * time.Millisecond
if runtime.GOOS == "windows" {
// sleep and ticker are slower on windows see https://github.com/golang/go/issues/44343
sleepTime = 20 * time.Millisecond
}
scheduler.Schedule(context.Background(), scheduletime, jobID1, func() (nextRunIn time.Duration, reschedule bool) {
tt := p[0]
<-tChan
t.Logf("job %s", tt)
return scheduletime, true
})
scheduler.Schedule(context.Background(), scheduletime, jobID2, func() (nextRunIn time.Duration, reschedule bool) {
return scheduletime, true
})
time.Sleep(sleepTime)
assert.Len(t, scheduler.jobs, 2)
scheduler.Cancel(context.Background(), []string{jobID1})
close(tChan)
p = []string{}
time.Sleep(sleepTime)
assert.Len(t, scheduler.jobs, 1)
assert.NotNil(t, scheduler.jobs[jobID2])
}
func TestScheduler_Schedule(t *testing.T) {
jobID := "test-scheduler-job-1"
scheduler := NewDefaultScheduler()
wg := &sync.WaitGroup{}
wg.Add(1)
// job without reschedule should be triggered once
job := func() (nextRunIn time.Duration, reschedule bool) {
wg.Done()
return 0, false
}
scheduler.Schedule(context.Background(), 300*time.Millisecond, jobID, job)
failed := waitTimeout(wg, time.Second)
if failed {
t.Fatal("timed out while waiting for test to finish")
return
}
// job with reschedule should be triggered at least twice
wg = &sync.WaitGroup{}
mx := &sync.Mutex{}
scheduledTimes := 0
wg.Add(2)
job = func() (nextRunIn time.Duration, reschedule bool) {
mx.Lock()
defer mx.Unlock()
// ensure we repeat only twice
if scheduledTimes < 2 {
wg.Done()
scheduledTimes++
return 300 * time.Millisecond, true
}
return 0, false
}
scheduler.Schedule(context.Background(), 300*time.Millisecond, jobID, job)
failed = waitTimeout(wg, time.Second)
if failed {
t.Fatal("timed out while waiting for test to finish")
return
}
scheduler.cancel(context.Background(), jobID)
}