mirror of
https://github.com/hibiken/asynq.git
synced 2024-12-25 07:12:17 +08:00
517 lines
14 KiB
Go
517 lines
14 KiB
Go
// Copyright 2020 Kentaro Hibino. All rights reserved.
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// Use of this source code is governed by a MIT license
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// that can be found in the LICENSE file.
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package asynq
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import (
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"context"
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"fmt"
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"sort"
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"sync"
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"testing"
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"time"
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"github.com/google/go-cmp/cmp"
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"github.com/google/go-cmp/cmp/cmpopts"
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h "github.com/hibiken/asynq/internal/asynqtest"
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"github.com/hibiken/asynq/internal/base"
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"github.com/hibiken/asynq/internal/rdb"
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)
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// fakeHeartbeater receives from starting and finished channels and do nothing.
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func fakeHeartbeater(starting, finished <-chan *base.TaskMessage, done <-chan struct{}) {
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for {
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select {
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case <-starting:
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case <-finished:
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case <-done:
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return
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}
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}
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}
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func TestProcessorSuccess(t *testing.T) {
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r := setup(t)
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rdbClient := rdb.NewRDB(r)
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m1 := h.NewTaskMessage("send_email", nil)
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m2 := h.NewTaskMessage("gen_thumbnail", nil)
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m3 := h.NewTaskMessage("reindex", nil)
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m4 := h.NewTaskMessage("sync", nil)
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t1 := NewTask(m1.Type, m1.Payload)
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t2 := NewTask(m2.Type, m2.Payload)
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t3 := NewTask(m3.Type, m3.Payload)
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t4 := NewTask(m4.Type, m4.Payload)
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tests := []struct {
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enqueued []*base.TaskMessage // initial default queue state
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incoming []*base.TaskMessage // tasks to be enqueued during run
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wantProcessed []*Task // tasks to be processed at the end
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}{
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{
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enqueued: []*base.TaskMessage{m1},
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incoming: []*base.TaskMessage{m2, m3, m4},
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wantProcessed: []*Task{t1, t2, t3, t4},
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},
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{
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enqueued: []*base.TaskMessage{},
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incoming: []*base.TaskMessage{m1},
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wantProcessed: []*Task{t1},
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},
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}
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for _, tc := range tests {
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h.FlushDB(t, r) // clean up db before each test case.
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h.SeedEnqueuedQueue(t, r, tc.enqueued) // initialize default queue.
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// instantiate a new processor
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var mu sync.Mutex
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var processed []*Task
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handler := func(ctx context.Context, task *Task) error {
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mu.Lock()
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defer mu.Unlock()
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processed = append(processed, task)
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return nil
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}
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starting := make(chan *base.TaskMessage)
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finished := make(chan *base.TaskMessage)
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done := make(chan struct{})
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defer func() { close(done) }()
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go fakeHeartbeater(starting, finished, done)
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p := newProcessor(processorParams{
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logger: testLogger,
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broker: rdbClient,
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retryDelayFunc: defaultDelayFunc,
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syncCh: nil,
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cancelations: base.NewCancelations(),
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concurrency: 10,
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queues: defaultQueueConfig,
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strictPriority: false,
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errHandler: nil,
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shutdownTimeout: defaultShutdownTimeout,
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starting: starting,
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finished: finished,
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})
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p.handler = HandlerFunc(handler)
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p.start(&sync.WaitGroup{})
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for _, msg := range tc.incoming {
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err := rdbClient.Enqueue(msg)
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if err != nil {
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p.terminate()
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t.Fatal(err)
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}
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}
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time.Sleep(2 * time.Second) // wait for two second to allow all enqueued tasks to be processed.
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p.terminate()
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mu.Lock()
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if diff := cmp.Diff(tc.wantProcessed, processed, sortTaskOpt, cmp.AllowUnexported(Payload{})); diff != "" {
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t.Errorf("mismatch found in processed tasks; (-want, +got)\n%s", diff)
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}
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mu.Unlock()
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if l := r.LLen(base.InProgressQueue).Val(); l != 0 {
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t.Errorf("%q has %d tasks, want 0", base.InProgressQueue, l)
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}
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}
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}
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func TestProcessorRetry(t *testing.T) {
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r := setup(t)
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rdbClient := rdb.NewRDB(r)
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m1 := h.NewTaskMessage("send_email", nil)
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m1.Retried = m1.Retry // m1 has reached its max retry count
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m2 := h.NewTaskMessage("gen_thumbnail", nil)
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m3 := h.NewTaskMessage("reindex", nil)
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m4 := h.NewTaskMessage("sync", nil)
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errMsg := "something went wrong"
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// r* is m* after retry
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r1 := *m1
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r1.ErrorMsg = errMsg
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r2 := *m2
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r2.ErrorMsg = errMsg
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r2.Retried = m2.Retried + 1
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r3 := *m3
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r3.ErrorMsg = errMsg
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r3.Retried = m3.Retried + 1
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r4 := *m4
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r4.ErrorMsg = errMsg
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r4.Retried = m4.Retried + 1
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now := time.Now()
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tests := []struct {
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enqueued []*base.TaskMessage // initial default queue state
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incoming []*base.TaskMessage // tasks to be enqueued during run
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delay time.Duration // retry delay duration
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handler Handler // task handler
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wait time.Duration // wait duration between starting and stopping processor for this test case
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wantRetry []h.ZSetEntry // tasks in retry queue at the end
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wantDead []*base.TaskMessage // tasks in dead queue at the end
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wantErrCount int // number of times error handler should be called
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}{
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{
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enqueued: []*base.TaskMessage{m1, m2},
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incoming: []*base.TaskMessage{m3, m4},
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delay: time.Minute,
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handler: HandlerFunc(func(ctx context.Context, task *Task) error {
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return fmt.Errorf(errMsg)
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}),
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wait: 2 * time.Second,
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wantRetry: []h.ZSetEntry{
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{Msg: &r2, Score: float64(now.Add(time.Minute).Unix())},
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{Msg: &r3, Score: float64(now.Add(time.Minute).Unix())},
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{Msg: &r4, Score: float64(now.Add(time.Minute).Unix())},
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},
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wantDead: []*base.TaskMessage{&r1},
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wantErrCount: 4,
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},
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}
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for _, tc := range tests {
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h.FlushDB(t, r) // clean up db before each test case.
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h.SeedEnqueuedQueue(t, r, tc.enqueued) // initialize default queue.
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// instantiate a new processor
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delayFunc := func(n int, e error, t *Task) time.Duration {
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return tc.delay
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}
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var (
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mu sync.Mutex // guards n
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n int // number of times error handler is called
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)
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errHandler := func(t *Task, err error, retried, maxRetry int) {
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mu.Lock()
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defer mu.Unlock()
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n++
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}
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starting := make(chan *base.TaskMessage)
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finished := make(chan *base.TaskMessage)
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done := make(chan struct{})
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defer func() { close(done) }()
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go fakeHeartbeater(starting, finished, done)
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p := newProcessor(processorParams{
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logger: testLogger,
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broker: rdbClient,
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retryDelayFunc: delayFunc,
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syncCh: nil,
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cancelations: base.NewCancelations(),
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concurrency: 10,
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queues: defaultQueueConfig,
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strictPriority: false,
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errHandler: ErrorHandlerFunc(errHandler),
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shutdownTimeout: defaultShutdownTimeout,
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starting: starting,
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finished: finished,
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})
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p.handler = tc.handler
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p.start(&sync.WaitGroup{})
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for _, msg := range tc.incoming {
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err := rdbClient.Enqueue(msg)
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if err != nil {
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p.terminate()
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t.Fatal(err)
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}
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}
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time.Sleep(tc.wait) // FIXME: This makes test flaky.
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p.terminate()
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cmpOpt := cmpopts.EquateApprox(0, float64(time.Second)) // allow up to a second difference in zset score
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gotRetry := h.GetRetryEntries(t, r)
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if diff := cmp.Diff(tc.wantRetry, gotRetry, h.SortZSetEntryOpt, cmpOpt); diff != "" {
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t.Errorf("mismatch found in %q after running processor; (-want, +got)\n%s", base.RetryQueue, diff)
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}
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gotDead := h.GetDeadMessages(t, r)
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if diff := cmp.Diff(tc.wantDead, gotDead, h.SortMsgOpt); diff != "" {
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t.Errorf("mismatch found in %q after running processor; (-want, +got)\n%s", base.DeadQueue, diff)
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}
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if l := r.LLen(base.InProgressQueue).Val(); l != 0 {
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t.Errorf("%q has %d tasks, want 0", base.InProgressQueue, l)
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}
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if n != tc.wantErrCount {
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t.Errorf("error handler was called %d times, want %d", n, tc.wantErrCount)
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}
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}
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}
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func TestProcessorQueues(t *testing.T) {
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sortOpt := cmp.Transformer("SortStrings", func(in []string) []string {
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out := append([]string(nil), in...) // Copy input to avoid mutating it
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sort.Strings(out)
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return out
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})
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tests := []struct {
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queueCfg map[string]int
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want []string
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}{
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{
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queueCfg: map[string]int{
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"high": 6,
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"default": 3,
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"low": 1,
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},
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want: []string{"high", "default", "low"},
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},
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{
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queueCfg: map[string]int{
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"default": 1,
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},
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want: []string{"default"},
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},
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}
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for _, tc := range tests {
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starting := make(chan *base.TaskMessage)
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finished := make(chan *base.TaskMessage)
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done := make(chan struct{})
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defer func() { close(done) }()
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go fakeHeartbeater(starting, finished, done)
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p := newProcessor(processorParams{
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logger: testLogger,
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broker: nil,
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retryDelayFunc: defaultDelayFunc,
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syncCh: nil,
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cancelations: base.NewCancelations(),
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concurrency: 10,
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queues: tc.queueCfg,
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strictPriority: false,
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errHandler: nil,
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shutdownTimeout: defaultShutdownTimeout,
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starting: starting,
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finished: finished,
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})
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got := p.queues()
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if diff := cmp.Diff(tc.want, got, sortOpt); diff != "" {
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t.Errorf("with queue config: %v\n(*processor).queues() = %v, want %v\n(-want,+got):\n%s",
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tc.queueCfg, got, tc.want, diff)
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}
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}
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}
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func TestProcessorWithStrictPriority(t *testing.T) {
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r := setup(t)
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rdbClient := rdb.NewRDB(r)
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m1 := h.NewTaskMessage("send_email", nil)
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m2 := h.NewTaskMessage("send_email", nil)
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m3 := h.NewTaskMessage("send_email", nil)
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m4 := h.NewTaskMessage("gen_thumbnail", nil)
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m5 := h.NewTaskMessage("gen_thumbnail", nil)
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m6 := h.NewTaskMessage("sync", nil)
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m7 := h.NewTaskMessage("sync", nil)
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t1 := NewTask(m1.Type, m1.Payload)
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t2 := NewTask(m2.Type, m2.Payload)
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t3 := NewTask(m3.Type, m3.Payload)
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t4 := NewTask(m4.Type, m4.Payload)
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t5 := NewTask(m5.Type, m5.Payload)
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t6 := NewTask(m6.Type, m6.Payload)
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t7 := NewTask(m7.Type, m7.Payload)
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tests := []struct {
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enqueued map[string][]*base.TaskMessage // initial queues state
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wait time.Duration // wait duration between starting and stopping processor for this test case
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wantProcessed []*Task // tasks to be processed at the end
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}{
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{
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enqueued: map[string][]*base.TaskMessage{
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base.DefaultQueueName: {m4, m5},
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"critical": {m1, m2, m3},
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"low": {m6, m7},
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},
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wait: time.Second,
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wantProcessed: []*Task{t1, t2, t3, t4, t5, t6, t7},
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},
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}
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for _, tc := range tests {
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h.FlushDB(t, r) // clean up db before each test case.
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for qname, msgs := range tc.enqueued {
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h.SeedEnqueuedQueue(t, r, msgs, qname)
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}
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// instantiate a new processor
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var mu sync.Mutex
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var processed []*Task
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handler := func(ctx context.Context, task *Task) error {
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mu.Lock()
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defer mu.Unlock()
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processed = append(processed, task)
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return nil
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}
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queueCfg := map[string]int{
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"critical": 3,
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base.DefaultQueueName: 2,
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"low": 1,
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}
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starting := make(chan *base.TaskMessage)
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finished := make(chan *base.TaskMessage)
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done := make(chan struct{})
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defer func() { close(done) }()
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go fakeHeartbeater(starting, finished, done)
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p := newProcessor(processorParams{
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logger: testLogger,
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broker: rdbClient,
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retryDelayFunc: defaultDelayFunc,
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syncCh: nil,
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cancelations: base.NewCancelations(),
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concurrency: 1, // Set concurrency to 1 to make sure tasks are processed one at a time.
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queues: queueCfg,
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strictPriority: true,
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errHandler: nil,
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shutdownTimeout: defaultShutdownTimeout,
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starting: starting,
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finished: finished,
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})
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p.handler = HandlerFunc(handler)
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p.start(&sync.WaitGroup{})
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time.Sleep(tc.wait)
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p.terminate()
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if diff := cmp.Diff(tc.wantProcessed, processed, cmp.AllowUnexported(Payload{})); diff != "" {
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t.Errorf("mismatch found in processed tasks; (-want, +got)\n%s", diff)
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}
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if l := r.LLen(base.InProgressQueue).Val(); l != 0 {
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t.Errorf("%q has %d tasks, want 0", base.InProgressQueue, l)
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}
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}
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}
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func TestPerform(t *testing.T) {
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tests := []struct {
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desc string
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handler HandlerFunc
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task *Task
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wantErr bool
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}{
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{
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desc: "handler returns nil",
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handler: func(ctx context.Context, t *Task) error {
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return nil
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},
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task: NewTask("gen_thumbnail", map[string]interface{}{"src": "some/img/path"}),
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wantErr: false,
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},
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{
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desc: "handler returns error",
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handler: func(ctx context.Context, t *Task) error {
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return fmt.Errorf("something went wrong")
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},
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task: NewTask("gen_thumbnail", map[string]interface{}{"src": "some/img/path"}),
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wantErr: true,
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},
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{
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desc: "handler panics",
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handler: func(ctx context.Context, t *Task) error {
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panic("something went terribly wrong")
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},
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task: NewTask("gen_thumbnail", map[string]interface{}{"src": "some/img/path"}),
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wantErr: true,
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},
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}
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for _, tc := range tests {
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got := perform(context.Background(), tc.task, tc.handler)
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if !tc.wantErr && got != nil {
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t.Errorf("%s: perform() = %v, want nil", tc.desc, got)
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continue
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}
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if tc.wantErr && got == nil {
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t.Errorf("%s: perform() = nil, want non-nil error", tc.desc)
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continue
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}
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}
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}
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func TestGCD(t *testing.T) {
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tests := []struct {
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input []int
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want int
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}{
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{[]int{6, 2, 12}, 2},
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{[]int{3, 3, 3}, 3},
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{[]int{6, 3, 1}, 1},
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{[]int{1}, 1},
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{[]int{1, 0, 2}, 1},
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{[]int{8, 0, 4}, 4},
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{[]int{9, 12, 18, 30}, 3},
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}
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for _, tc := range tests {
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got := gcd(tc.input...)
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if got != tc.want {
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t.Errorf("gcd(%v) = %d, want %d", tc.input, got, tc.want)
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}
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}
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}
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func TestNormalizeQueues(t *testing.T) {
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tests := []struct {
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input map[string]int
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want map[string]int
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}{
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{
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input: map[string]int{
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"high": 100,
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"default": 20,
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"low": 5,
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},
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want: map[string]int{
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"high": 20,
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"default": 4,
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"low": 1,
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},
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},
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{
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input: map[string]int{
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"default": 10,
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},
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want: map[string]int{
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"default": 1,
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},
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},
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{
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input: map[string]int{
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"critical": 5,
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"default": 1,
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},
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want: map[string]int{
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"critical": 5,
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"default": 1,
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},
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},
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{
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input: map[string]int{
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"critical": 6,
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"default": 3,
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"low": 0,
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},
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want: map[string]int{
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"critical": 2,
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"default": 1,
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"low": 0,
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},
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},
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}
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for _, tc := range tests {
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got := normalizeQueues(tc.input)
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if diff := cmp.Diff(tc.want, got); diff != "" {
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t.Errorf("normalizeQueues(%v) = %v, want %v; (-want, +got):\n%s",
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tc.input, got, tc.want, diff)
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}
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}
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}
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