mirror of
https://github.com/go-gitea/gitea
synced 2024-12-25 01:54:26 +00:00
e6103955cc
Fix #30643 The old test code is not stable due to the data-race described in the TODO added at that time. Make it stable, and remove a debug-only field from old test code.
286 lines
9.2 KiB
Go
286 lines
9.2 KiB
Go
// Copyright 2023 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package queue
|
|
|
|
import (
|
|
"context"
|
|
"slices"
|
|
"strconv"
|
|
"sync"
|
|
"sync/atomic"
|
|
"testing"
|
|
"time"
|
|
|
|
"code.gitea.io/gitea/modules/setting"
|
|
"code.gitea.io/gitea/modules/test"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
func runWorkerPoolQueue[T any](q *WorkerPoolQueue[T]) func() {
|
|
go q.Run()
|
|
return func() {
|
|
q.ShutdownWait(1 * time.Second)
|
|
}
|
|
}
|
|
|
|
func TestWorkerPoolQueueUnhandled(t *testing.T) {
|
|
oldUnhandledItemRequeueDuration := unhandledItemRequeueDuration.Load()
|
|
unhandledItemRequeueDuration.Store(0)
|
|
defer unhandledItemRequeueDuration.Store(oldUnhandledItemRequeueDuration)
|
|
|
|
mu := sync.Mutex{}
|
|
|
|
test := func(t *testing.T, queueSetting setting.QueueSettings) {
|
|
queueSetting.Length = 100
|
|
queueSetting.Type = "channel"
|
|
queueSetting.Datadir = t.TempDir() + "/test-queue"
|
|
m := map[int]int{}
|
|
|
|
// odds are handled once, evens are handled twice
|
|
handler := func(items ...int) (unhandled []int) {
|
|
testRecorder.Record("handle:%v", items)
|
|
for _, item := range items {
|
|
mu.Lock()
|
|
if item%2 == 0 && m[item] == 0 {
|
|
unhandled = append(unhandled, item)
|
|
}
|
|
m[item]++
|
|
mu.Unlock()
|
|
}
|
|
return unhandled
|
|
}
|
|
|
|
q, _ := newWorkerPoolQueueForTest("test-workpoolqueue", queueSetting, handler, false)
|
|
stop := runWorkerPoolQueue(q)
|
|
for i := 0; i < queueSetting.Length; i++ {
|
|
testRecorder.Record("push:%v", i)
|
|
assert.NoError(t, q.Push(i))
|
|
}
|
|
assert.NoError(t, q.FlushWithContext(context.Background(), 0))
|
|
stop()
|
|
|
|
ok := true
|
|
for i := 0; i < queueSetting.Length; i++ {
|
|
if i%2 == 0 {
|
|
ok = ok && assert.EqualValues(t, 2, m[i], "test %s: item %d", t.Name(), i)
|
|
} else {
|
|
ok = ok && assert.EqualValues(t, 1, m[i], "test %s: item %d", t.Name(), i)
|
|
}
|
|
}
|
|
if !ok {
|
|
t.Logf("m: %v", m)
|
|
t.Logf("records: %v", testRecorder.Records())
|
|
}
|
|
testRecorder.Reset()
|
|
}
|
|
|
|
runCount := 2 // we can run these tests even hundreds times to see its stability
|
|
t.Run("1/1", func(t *testing.T) {
|
|
for i := 0; i < runCount; i++ {
|
|
test(t, setting.QueueSettings{BatchLength: 1, MaxWorkers: 1})
|
|
}
|
|
})
|
|
t.Run("3/1", func(t *testing.T) {
|
|
for i := 0; i < runCount; i++ {
|
|
test(t, setting.QueueSettings{BatchLength: 3, MaxWorkers: 1})
|
|
}
|
|
})
|
|
t.Run("4/5", func(t *testing.T) {
|
|
for i := 0; i < runCount; i++ {
|
|
test(t, setting.QueueSettings{BatchLength: 4, MaxWorkers: 5})
|
|
}
|
|
})
|
|
}
|
|
|
|
func TestWorkerPoolQueuePersistence(t *testing.T) {
|
|
runCount := 2 // we can run these tests even hundreds times to see its stability
|
|
t.Run("1/1", func(t *testing.T) {
|
|
for i := 0; i < runCount; i++ {
|
|
testWorkerPoolQueuePersistence(t, setting.QueueSettings{BatchLength: 1, MaxWorkers: 1, Length: 100})
|
|
}
|
|
})
|
|
t.Run("3/1", func(t *testing.T) {
|
|
for i := 0; i < runCount; i++ {
|
|
testWorkerPoolQueuePersistence(t, setting.QueueSettings{BatchLength: 3, MaxWorkers: 1, Length: 100})
|
|
}
|
|
})
|
|
t.Run("4/5", func(t *testing.T) {
|
|
for i := 0; i < runCount; i++ {
|
|
testWorkerPoolQueuePersistence(t, setting.QueueSettings{BatchLength: 4, MaxWorkers: 5, Length: 100})
|
|
}
|
|
})
|
|
}
|
|
|
|
func testWorkerPoolQueuePersistence(t *testing.T, queueSetting setting.QueueSettings) {
|
|
testCount := queueSetting.Length
|
|
queueSetting.Type = "level"
|
|
queueSetting.Datadir = t.TempDir() + "/test-queue"
|
|
|
|
mu := sync.Mutex{}
|
|
|
|
var tasksQ1, tasksQ2 []string
|
|
q1 := func() {
|
|
startWhenAllReady := make(chan struct{}) // only start data consuming when the "testCount" tasks are all pushed into queue
|
|
stopAt20Shutdown := make(chan struct{}) // stop and shutdown at the 20th item
|
|
|
|
testHandler := func(data ...string) []string {
|
|
<-startWhenAllReady
|
|
time.Sleep(10 * time.Millisecond)
|
|
for _, s := range data {
|
|
mu.Lock()
|
|
tasksQ1 = append(tasksQ1, s)
|
|
mu.Unlock()
|
|
|
|
if s == "task-20" {
|
|
close(stopAt20Shutdown)
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
q, _ := newWorkerPoolQueueForTest("pr_patch_checker_test", queueSetting, testHandler, true)
|
|
stop := runWorkerPoolQueue(q)
|
|
for i := 0; i < testCount; i++ {
|
|
_ = q.Push("task-" + strconv.Itoa(i))
|
|
}
|
|
close(startWhenAllReady)
|
|
<-stopAt20Shutdown // it's possible to have more than 20 tasks executed
|
|
stop()
|
|
}
|
|
|
|
q1() // run some tasks and shutdown at an intermediate point
|
|
|
|
time.Sleep(100 * time.Millisecond) // because the handler in q1 has a slight delay, we need to wait for it to finish
|
|
|
|
q2 := func() {
|
|
testHandler := func(data ...string) []string {
|
|
for _, s := range data {
|
|
mu.Lock()
|
|
tasksQ2 = append(tasksQ2, s)
|
|
mu.Unlock()
|
|
}
|
|
return nil
|
|
}
|
|
|
|
q, _ := newWorkerPoolQueueForTest("pr_patch_checker_test", queueSetting, testHandler, true)
|
|
stop := runWorkerPoolQueue(q)
|
|
assert.NoError(t, q.FlushWithContext(context.Background(), 0))
|
|
stop()
|
|
}
|
|
|
|
q2() // restart the queue to continue to execute the tasks in it
|
|
|
|
assert.NotZero(t, len(tasksQ1))
|
|
assert.NotZero(t, len(tasksQ2))
|
|
assert.EqualValues(t, testCount, len(tasksQ1)+len(tasksQ2))
|
|
}
|
|
|
|
func TestWorkerPoolQueueActiveWorkers(t *testing.T) {
|
|
defer test.MockVariableValue(&workerIdleDuration, 300*time.Millisecond)()
|
|
|
|
handler := func(items ...int) (unhandled []int) {
|
|
time.Sleep(100 * time.Millisecond)
|
|
return nil
|
|
}
|
|
|
|
q, _ := newWorkerPoolQueueForTest("test-workpoolqueue", setting.QueueSettings{Type: "channel", BatchLength: 1, MaxWorkers: 1, Length: 100}, handler, false)
|
|
stop := runWorkerPoolQueue(q)
|
|
for i := 0; i < 5; i++ {
|
|
assert.NoError(t, q.Push(i))
|
|
}
|
|
|
|
time.Sleep(50 * time.Millisecond)
|
|
assert.EqualValues(t, 1, q.GetWorkerNumber())
|
|
assert.EqualValues(t, 1, q.GetWorkerActiveNumber())
|
|
time.Sleep(500 * time.Millisecond)
|
|
assert.EqualValues(t, 1, q.GetWorkerNumber())
|
|
assert.EqualValues(t, 0, q.GetWorkerActiveNumber())
|
|
time.Sleep(workerIdleDuration)
|
|
assert.EqualValues(t, 1, q.GetWorkerNumber()) // there is at least one worker after the queue begins working
|
|
stop()
|
|
|
|
q, _ = newWorkerPoolQueueForTest("test-workpoolqueue", setting.QueueSettings{Type: "channel", BatchLength: 1, MaxWorkers: 3, Length: 100}, handler, false)
|
|
stop = runWorkerPoolQueue(q)
|
|
for i := 0; i < 15; i++ {
|
|
assert.NoError(t, q.Push(i))
|
|
}
|
|
|
|
time.Sleep(50 * time.Millisecond)
|
|
assert.EqualValues(t, 3, q.GetWorkerNumber())
|
|
assert.EqualValues(t, 3, q.GetWorkerActiveNumber())
|
|
time.Sleep(500 * time.Millisecond)
|
|
assert.EqualValues(t, 3, q.GetWorkerNumber())
|
|
assert.EqualValues(t, 0, q.GetWorkerActiveNumber())
|
|
time.Sleep(workerIdleDuration)
|
|
assert.EqualValues(t, 1, q.GetWorkerNumber()) // there is at least one worker after the queue begins working
|
|
stop()
|
|
}
|
|
|
|
func TestWorkerPoolQueueShutdown(t *testing.T) {
|
|
oldUnhandledItemRequeueDuration := unhandledItemRequeueDuration.Load()
|
|
unhandledItemRequeueDuration.Store(int64(100 * time.Millisecond))
|
|
defer unhandledItemRequeueDuration.Store(oldUnhandledItemRequeueDuration)
|
|
|
|
// simulate a slow handler, it doesn't handle any item (all items will be pushed back to the queue)
|
|
handlerCalled := make(chan struct{})
|
|
handler := func(items ...int) (unhandled []int) {
|
|
if items[0] == 0 {
|
|
close(handlerCalled)
|
|
}
|
|
time.Sleep(400 * time.Millisecond)
|
|
return items
|
|
}
|
|
|
|
qs := setting.QueueSettings{Type: "level", Datadir: t.TempDir() + "/queue", BatchLength: 3, MaxWorkers: 4, Length: 20}
|
|
q, _ := newWorkerPoolQueueForTest("test-workpoolqueue", qs, handler, false)
|
|
stop := runWorkerPoolQueue(q)
|
|
for i := 0; i < qs.Length; i++ {
|
|
assert.NoError(t, q.Push(i))
|
|
}
|
|
<-handlerCalled
|
|
time.Sleep(200 * time.Millisecond) // wait for a while to make sure all workers are active
|
|
assert.EqualValues(t, 4, q.GetWorkerActiveNumber())
|
|
stop() // stop triggers shutdown
|
|
assert.EqualValues(t, 0, q.GetWorkerActiveNumber())
|
|
|
|
// no item was ever handled, so we still get all of them again
|
|
q, _ = newWorkerPoolQueueForTest("test-workpoolqueue", qs, handler, false)
|
|
assert.EqualValues(t, 20, q.GetQueueItemNumber())
|
|
}
|
|
|
|
func TestWorkerPoolQueueWorkerIdleReset(t *testing.T) {
|
|
defer test.MockVariableValue(&workerIdleDuration, 10*time.Millisecond)()
|
|
defer mockBackoffDuration(5 * time.Millisecond)()
|
|
|
|
var q *WorkerPoolQueue[int]
|
|
var handledCount atomic.Int32
|
|
var hasOnlyOneWorkerRunning atomic.Bool
|
|
handler := func(items ...int) (unhandled []int) {
|
|
handledCount.Add(int32(len(items)))
|
|
// make each work have different duration, and check the active worker number periodically
|
|
var activeNums []int
|
|
for i := 0; i < 5-items[0]%2; i++ {
|
|
time.Sleep(workerIdleDuration * 2)
|
|
activeNums = append(activeNums, q.GetWorkerActiveNumber())
|
|
}
|
|
// When the queue never becomes empty, the existing workers should keep working
|
|
// It is not 100% true at the moment because the data-race in workergroup.go is not resolved, see that TODO */
|
|
// If the "active worker numbers" is like [2 2 ... 1 1], it means that an existing worker exited and the no new worker is started.
|
|
if slices.Equal([]int{1, 1}, activeNums[len(activeNums)-2:]) {
|
|
hasOnlyOneWorkerRunning.Store(true)
|
|
}
|
|
return nil
|
|
}
|
|
q, _ = newWorkerPoolQueueForTest("test-workpoolqueue", setting.QueueSettings{Type: "channel", BatchLength: 1, MaxWorkers: 2, Length: 100}, handler, false)
|
|
stop := runWorkerPoolQueue(q)
|
|
for i := 0; i < 100; i++ {
|
|
assert.NoError(t, q.Push(i))
|
|
}
|
|
time.Sleep(500 * time.Millisecond)
|
|
assert.Greater(t, int(handledCount.Load()), 4) // make sure there are enough items handled during the test
|
|
assert.False(t, hasOnlyOneWorkerRunning.Load(), "a slow handler should not block other workers from starting")
|
|
stop()
|
|
}
|