forked from robfig/cron
-
Notifications
You must be signed in to change notification settings - Fork 2
/
cron_test.go
1137 lines (967 loc) · 27 KB
/
cron_test.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
package cron
import (
"bytes"
"container/heap"
"fmt"
"log"
"strings"
"sync"
"sync/atomic"
"testing"
"time"
)
// Many tests schedule a job for every second, and then wait at most a second
// for it to run. This amount is just slightly larger than 1 second to
// compensate for a few milliseconds of runtime.
const OneSecond = 1*time.Second + 50*time.Millisecond
type testIdGenerator struct {
test string
}
func (t *testIdGenerator) Generator() EntryID {
return t.test
}
type syncWriter struct {
wr bytes.Buffer
m sync.Mutex
}
func (sw *syncWriter) Write(data []byte) (n int, err error) {
sw.m.Lock()
n, err = sw.wr.Write(data)
sw.m.Unlock()
return
}
func (sw *syncWriter) String() string {
sw.m.Lock()
defer sw.m.Unlock()
return sw.wr.String()
}
func newBufLogger(sw *syncWriter) Logger {
return PrintfLogger(log.New(sw, "", log.LstdFlags))
}
func TestFuncPanicRecovery(t *testing.T) {
var buf syncWriter
cron := New(WithParser(secondParser),
WithChain(Recover(newBufLogger(&buf))))
cron.Start()
defer cron.Stop()
cron.AddFunc("* * * * * ?", func() {
panic("YOLO")
})
select {
case <-time.After(OneSecond):
if !strings.Contains(buf.String(), "YOLO") {
t.Error("expected a panic to be logged, got none")
}
return
}
}
type DummyJob struct{}
func (d DummyJob) Run() {
panic("YOLO")
}
func TestJobPanicRecovery(t *testing.T) {
var job DummyJob
var buf syncWriter
cron := New(WithParser(secondParser),
WithChain(Recover(newBufLogger(&buf))))
cron.Start()
defer cron.Stop()
cron.AddJob("* * * * * ?", job)
select {
case <-time.After(OneSecond):
if !strings.Contains(buf.String(), "YOLO") {
t.Error("expected a panic to be logged, got none")
}
return
}
}
// Start and stop cron with no entries.
func TestNoEntries(t *testing.T) {
cron := newWithSeconds()
cron.Start()
select {
case <-time.After(OneSecond):
t.Fatal("expected cron will be stopped immediately")
case <-stop(cron):
}
}
// Start, stop, then add an entry. Verify entry doesn't run.
func TestStopCausesJobsToNotRun(t *testing.T) {
wg := &sync.WaitGroup{}
wg.Add(1)
cron := newWithSeconds()
cron.Start()
cron.Stop()
cron.AddFunc("* * * * * ?", func() { wg.Done() })
select {
case <-time.After(OneSecond):
// No job ran!
case <-wait(wg):
t.Fatal("expected stopped cron does not run any job")
}
}
// Add a job, start cron, expect it runs.
func TestAddBeforeRunning(t *testing.T) {
wg := &sync.WaitGroup{}
wg.Add(1)
cron := newWithSeconds()
cron.AddFunc("* * * * * ?", func() { wg.Done() })
cron.Start()
defer cron.Stop()
// Give cron 2 seconds to run our job (which is always activated).
select {
case <-time.After(OneSecond):
t.Fatal("expected job runs")
case <-wait(wg):
}
}
// Start cron, add a job, expect it runs.
func TestAddWhileRunning(t *testing.T) {
wg := &sync.WaitGroup{}
wg.Add(1)
cron := newWithSeconds()
cron.Start()
defer cron.Stop()
cron.AddFunc("* * * * * ?", func() { wg.Done() })
select {
case <-time.After(OneSecond):
t.Fatal("expected job runs")
case <-wait(wg):
}
}
// Test for #34. Adding a job after calling start results in multiple job invocations
func TestAddWhileRunningWithDelay(t *testing.T) {
cron := newWithSeconds()
cron.Start()
defer cron.Stop()
time.Sleep(5 * time.Second)
var calls int64
cron.AddFunc("* * * * * *", func() { atomic.AddInt64(&calls, 1) })
<-time.After(OneSecond)
if atomic.LoadInt64(&calls) != 1 {
t.Errorf("called %d times, expected 1\n", calls)
}
}
// Test cancel simple job,cancel op invalid
func TestCancelSimpleJob(t *testing.T) {
cron := New(WithParser(secondParser), WithChain())
cron.Start()
defer cron.Stop()
time.Sleep(5 * time.Second)
var calls int64
id, err := cron.AddFunc("@every 5s", func() {
time.Sleep(3)
atomic.AddInt64(&calls, 1)
})
if err != nil {
t.Errorf("unexpected error %\n", err)
}
<-time.After(OneSecond * 6)
cron.CancelEntry(id)
<-time.After(OneSecond * 4)
if atomic.LoadInt64(&calls) != 2 {
t.Errorf("called %d times, expected 2\n", calls)
}
}
// Test cancel option job,cancel op valid
func TestCancelOptionJob(t *testing.T) {
cron := newWithSeconds()
cron.Start()
defer cron.Stop()
var calls int64
id, err := cron.AddOptionFunc("@every 5s", func(option *JobOption) {
ctx := option.Context
select {
case <-time.After(OneSecond * 3):
atomic.AddInt64(&calls, 1)
return
case <-ctx.Done():
return
}
})
if err != nil {
t.Errorf("unexpected error %\n", err)
}
<-time.After(OneSecond * 6)
cron.CancelEntry(id)
<-time.After(OneSecond * 8)
if atomic.LoadInt64(&calls) != 1 {
t.Errorf("called %d times, expected 1\n", calls)
}
<-time.After(OneSecond * 5)
if atomic.LoadInt64(&calls) != 2 {
t.Errorf("called %d times, expected 2\n", calls)
}
}
// Test timeout option job,cancel op valid
func TestTimeoutOptionJob(t *testing.T) {
testTimeoutForSimple := func() {
cron := newWithSeconds()
cron.Start()
defer cron.Stop()
var calls int64
_, err := cron.AddOptionFunc("@every 5s", func(option *JobOption) {
ctx := option.Context
select {
case <-time.After(OneSecond * 3):
atomic.AddInt64(&calls, 1)
return
case <-ctx.Done():
return
}
}, func(entry *Entry) {
entry.Timeout = OneSecond * 2
})
if err != nil {
t.Errorf("unexpected error %\n", err)
}
<-time.After(OneSecond * 8)
if atomic.LoadInt64(&calls) != 0 {
t.Errorf("called %d times, expected 0\n", calls)
}
}
testTimeoutForCancel := func() {
cron := newWithSeconds()
cron.Start()
defer cron.Stop()
var calls int64
id, err := cron.AddOptionFunc("@every 5s", func(option *JobOption) {
ctx := option.Context
select {
case <-time.After(OneSecond * 2):
atomic.AddInt64(&calls, 1)
return
case <-ctx.Done():
return
}
}, func(entry *Entry) {
entry.Timeout = OneSecond * 3
})
if err != nil {
t.Errorf("unexpected error %\n", err)
}
<-time.After(OneSecond * 1)
cron.CancelEntry(id)
if atomic.LoadInt64(&calls) != 0 {
t.Errorf("called %d times, expected 0\n", calls)
}
}
t.Run("test for timeout", func(t *testing.T) {
t.Run("simple timeout case", func(t *testing.T) {
testTimeoutForSimple()
})
t.Run("Cancel ahead of time without timeout", func(t *testing.T) {
testTimeoutForCancel()
})
})
}
func TestDisabledIdGenerator(t *testing.T) {
cron := New(WithParser(secondParser), DisabledIdGenerator(), WithChain())
cron.Start()
defer cron.Stop()
var calls int64
id, err := cron.AddOptionFunc("* * * * * ?", func(o *JobOption) {
atomic.AddInt64(&calls, 1)
}, func(entry *Entry) {
entry.ID = "123"
})
if err != nil {
t.Fatal(err)
}
<-time.After(OneSecond)
if id != "123" {
t.Errorf("id is %s, expected \"123\"\n", id)
}
if atomic.LoadInt64(&calls) != 1 {
t.Errorf("called %d times, expected 1\n", calls)
}
}
func TestForIdGenerator(t *testing.T) {
cron := New(WithParser(secondParser), WithIdGenerator(&testIdGenerator{
test: "321",
}), WithChain())
cron.Start()
defer cron.Stop()
var calls int64
id, err := cron.AddOptionFunc("* * * * * ?", func(o *JobOption) {
atomic.AddInt64(&calls, 1)
})
if err != nil {
t.Fatal(err)
}
<-time.After(OneSecond)
if id != "321" {
t.Errorf("id is %s, expected \"321\"\n", id)
}
if atomic.LoadInt64(&calls) != 1 {
t.Errorf("called %d times, expected 1\n", calls)
}
}
func TestRemoveOptionJob(t *testing.T) {
cron := newWithSeconds()
cron.Start()
defer cron.Stop()
id, err := cron.AddOptionFunc("* * * * * ?", func(o *JobOption) {
cron.Remove(o.GetID())
})
if err != nil {
t.Fatal(err)
}
for range time.After(OneSecond) {
if ok := cron.hasEntry(id); ok {
t.Errorf("test remove option job: want removed(true), got not removed(false)")
} else {
return
}
}
}
// Add a job, remove a job, start cron, expect nothing runs.
func TestRemoveBeforeRunning(t *testing.T) {
wg := &sync.WaitGroup{}
wg.Add(1)
cron := newWithSeconds()
id, _ := cron.AddFunc("* * * * * ?", func() { wg.Done() })
cron.Remove(id)
cron.Start()
defer cron.Stop()
select {
case <-time.After(OneSecond):
// Success, shouldn't run
case <-wait(wg):
t.FailNow()
}
}
// Start cron, add a job, remove it, expect it doesn't run.
func TestRemoveWhileRunning(t *testing.T) {
wg := &sync.WaitGroup{}
wg.Add(1)
cron := newWithSeconds()
cron.Start()
defer cron.Stop()
id, _ := cron.AddFunc("* * * * * ?", func() { wg.Done() })
cron.Remove(id)
select {
case <-time.After(OneSecond):
case <-wait(wg):
t.FailNow()
}
}
// Test timing with Entries.
func TestSnapshotEntries(t *testing.T) {
wg := &sync.WaitGroup{}
wg.Add(1)
cron := New()
cron.AddFunc("@every 2s", func() { wg.Done() })
cron.Start()
defer cron.Stop()
// Cron should fire in 2 seconds. After 1 second, call Entries.
select {
case <-time.After(OneSecond):
cron.Entries()
}
// Even though Entries was called, the cron should fire at the 2 second mark.
select {
case <-time.After(OneSecond):
t.Error("expected job runs at 2 second mark")
case <-wait(wg):
}
}
// Test that the entries are correctly sorted.
// Add a bunch of long-in-the-future entries, and an immediate entry, and ensure
// that the immediate entry runs immediately.
// Also: Test that multiple jobs run in the same instant.
func TestMultipleEntries(t *testing.T) {
wg := &sync.WaitGroup{}
wg.Add(2)
cron := newWithSeconds()
cron.AddFunc("0 0 0 1 1 ?", func() {})
cron.AddFunc("* * * * * ?", func() { wg.Done() })
id1, _ := cron.AddFunc("* * * * * ?", func() { t.Fatal() })
id2, _ := cron.AddFunc("* * * * * ?", func() { t.Fatal() })
cron.AddFunc("0 0 0 31 12 ?", func() {})
cron.AddFunc("* * * * * ?", func() { wg.Done() })
cron.Remove(id1)
cron.Start()
cron.Remove(id2)
defer cron.Stop()
select {
case <-time.After(OneSecond):
t.Error("expected job run in proper order")
case <-wait(wg):
}
}
// Test running the same job twice.
func TestRunningJobTwice(t *testing.T) {
wg := &sync.WaitGroup{}
wg.Add(2)
cron := newWithSeconds()
cron.AddFunc("0 0 0 1 1 ?", func() {})
cron.AddFunc("0 0 0 31 12 ?", func() {})
cron.AddFunc("* * * * * ?", func() { wg.Done() })
cron.Start()
defer cron.Stop()
select {
case <-time.After(2 * OneSecond):
t.Error("expected job fires 2 times")
case <-wait(wg):
}
}
func TestRunningMultipleSchedules(t *testing.T) {
wg := &sync.WaitGroup{}
wg.Add(2)
cron := newWithSeconds()
cron.AddFunc("0 0 0 1 1 ?", func() {})
cron.AddFunc("0 0 0 31 12 ?", func() {})
cron.AddFunc("* * * * * ?", func() { wg.Done() })
cron.Schedule(Every(time.Minute), FuncJob(func() {}))
cron.Schedule(Every(time.Second), FuncJob(func() { wg.Done() }))
cron.Schedule(Every(time.Hour), FuncJob(func() {}))
cron.Start()
defer cron.Stop()
select {
case <-time.After(2 * OneSecond):
t.Error("expected job fires 2 times")
case <-wait(wg):
}
}
// Test that the cron is run in the local time zone (as opposed to UTC).
func TestLocalTimezone(t *testing.T) {
wg := &sync.WaitGroup{}
wg.Add(2)
now := time.Now()
// FIX: Issue #205
// This calculation doesn't work in seconds 58 or 59.
// Take the easy way out and sleep.
if now.Second() >= 58 {
time.Sleep(2 * time.Second)
now = time.Now()
}
spec := fmt.Sprintf("%d,%d %d %d %d %d ?",
now.Second()+1, now.Second()+2, now.Minute(), now.Hour(), now.Day(), now.Month())
cron := newWithSeconds()
cron.AddFunc(spec, func() { wg.Done() })
cron.Start()
defer cron.Stop()
select {
case <-time.After(OneSecond * 2):
t.Error("expected job fires 2 times")
case <-wait(wg):
}
}
// Test that the cron is run in the given time zone (as opposed to local).
func TestNonLocalTimezone(t *testing.T) {
wg := &sync.WaitGroup{}
wg.Add(2)
loc, err := time.LoadLocation("Atlantic/Cape_Verde")
if err != nil {
fmt.Printf("Failed to load time zone Atlantic/Cape_Verde: %+v", err)
t.Fail()
}
now := time.Now().In(loc)
// FIX: Issue #205
// This calculation doesn't work in seconds 58 or 59.
// Take the easy way out and sleep.
if now.Second() >= 58 {
time.Sleep(2 * time.Second)
now = time.Now().In(loc)
}
spec := fmt.Sprintf("%d,%d %d %d %d %d ?",
now.Second()+1, now.Second()+2, now.Minute(), now.Hour(), now.Day(), now.Month())
cron := New(WithLocation(loc), WithParser(secondParser))
cron.AddFunc(spec, func() { wg.Done() })
cron.Start()
defer cron.Stop()
select {
case <-time.After(OneSecond * 2):
t.Error("expected job fires 2 times")
case <-wait(wg):
}
}
// Test that calling stop before start silently returns without
// blocking the stop channel.
func TestStopWithoutStart(t *testing.T) {
cron := New()
cron.Stop()
}
type testJob struct {
wg *sync.WaitGroup
name string
}
func (t testJob) Run() {
t.wg.Done()
}
// Test that adding an invalid job spec returns an error
func TestInvalidJobSpec(t *testing.T) {
cron := New()
_, err := cron.AddJob("this will not parse", nil)
if err == nil {
t.Errorf("expected an error with invalid spec, got nil")
}
}
// Test blocking run method behaves as Start()
func TestBlockingRun(t *testing.T) {
wg := &sync.WaitGroup{}
wg.Add(1)
cron := newWithSeconds()
cron.AddFunc("* * * * * ?", func() { wg.Done() })
var unblockChan = make(chan struct{})
go func() {
cron.Run()
close(unblockChan)
}()
defer cron.Stop()
select {
case <-time.After(OneSecond):
t.Error("expected job fires")
case <-unblockChan:
t.Error("expected that Run() blocks")
case <-wait(wg):
}
}
// Test that double-running is a no-op
func TestStartNoop(t *testing.T) {
var tickChan = make(chan struct{}, 2)
cron := newWithSeconds()
cron.AddFunc("* * * * * ?", func() {
tickChan <- struct{}{}
})
cron.Start()
defer cron.Stop()
// Wait for the first firing to ensure the runner is going
<-tickChan
cron.Start()
<-tickChan
// Fail if this job fires again in a short period, indicating a double-run
select {
case <-time.After(time.Millisecond):
case <-tickChan:
t.Error("expected job fires exactly twice")
}
}
// Simple test using Runnables.
func TestJob(t *testing.T) {
wg := &sync.WaitGroup{}
wg.Add(1)
cron := newWithSeconds()
cron.AddJob("0 0 0 30 Feb ?", testJob{wg, "job0"})
cron.AddJob("0 0 0 1 1 ?", testJob{wg, "job1"})
job2, _ := cron.AddJob("* * * * * ?", testJob{wg, "job2"})
cron.AddJob("1 0 0 1 1 ?", testJob{wg, "job3"})
cron.Schedule(Every(5*time.Second+5*time.Nanosecond), testJob{wg, "job4"})
job5 := cron.Schedule(Every(5*time.Minute), testJob{wg, "job5"})
// Test getting an Entry pre-Start.
if actualName := cron.Entry(job2).Job.(testJob).name; actualName != "job2" {
t.Error("wrong job retrieved:", actualName)
}
if actualName := cron.Entry(job5).Job.(testJob).name; actualName != "job5" {
t.Error("wrong job retrieved:", actualName)
}
cron.Start()
defer cron.Stop()
select {
case <-time.After(OneSecond):
t.FailNow()
case <-wait(wg):
}
// Ensure the entries are in the right order.
expecteds := []string{"job2", "job4", "job5", "job1", "job3", "job0"}
var actuals []string
clone := new(EntryHeap)
for len(cron.entries) > 0 {
entry := heap.Pop(&cron.entries).(*Entry)
actuals = append(actuals, entry.Job.(testJob).name)
heap.Push(clone, entry)
}
cron.entries = *clone
for i, expected := range expecteds {
if actuals[i] != expected {
t.Fatalf("Jobs not in the right order. (expected) %s != %s (actual)", expecteds, actuals)
}
}
// Test getting Entries.
if actualName := cron.Entry(job2).Job.(testJob).name; actualName != "job2" {
t.Error("wrong job retrieved:", actualName)
}
if actualName := cron.Entry(job5).Job.(testJob).name; actualName != "job5" {
t.Error("wrong job retrieved:", actualName)
}
}
// Issue #206
// Ensure that the next run of a job after removing an entry is accurate.
func TestScheduleAfterRemoval(t *testing.T) {
var wg1 sync.WaitGroup
var wg2 sync.WaitGroup
wg1.Add(1)
wg2.Add(1)
// The first time this job is run, set a timer and remove the other job
// 750ms later. Correct behavior would be to still run the job again in
// 250ms, but the bug would cause it to run instead 1s later.
var calls int
var mu sync.Mutex
cron := newWithSeconds()
hourJob := cron.Schedule(Every(time.Hour), FuncJob(func() {}))
cron.Schedule(Every(time.Second), FuncJob(func() {
mu.Lock()
defer mu.Unlock()
switch calls {
case 0:
wg1.Done()
calls++
case 1:
time.Sleep(750 * time.Millisecond)
cron.Remove(hourJob)
calls++
case 2:
calls++
wg2.Done()
case 3:
panic("unexpected 3rd call")
}
}))
cron.Start()
defer cron.Stop()
// the first run might be any length of time 0 - 1s, since the schedule
// rounds to the second. wait for the first run to true up.
wg1.Wait()
select {
case <-time.After(2 * OneSecond):
t.Error("expected job fires 2 times")
case <-wait(&wg2):
}
}
type ZeroSchedule struct{}
func (*ZeroSchedule) Next(time.Time) time.Time {
return time.Time{}
}
func (*ZeroSchedule) Prev(time.Time) time.Time {
return time.Time{}
}
func (*ZeroSchedule) IsOnce() bool {
return false
}
// Tests that job without time does not run
func TestJobWithZeroTimeDoesNotRun(t *testing.T) {
cron := newWithSeconds()
var calls int64
cron.AddFunc("* * * * * *", func() { atomic.AddInt64(&calls, 1) })
cron.Schedule(new(ZeroSchedule), FuncJob(func() { t.Error("expected zero task will not run") }))
cron.Start()
defer cron.Stop()
<-time.After(OneSecond)
if atomic.LoadInt64(&calls) != 1 {
t.Errorf("called %d times, expected 1\n", calls)
}
}
func TestStopAndWait(t *testing.T) {
t.Run("nothing running, returns immediately", func(t *testing.T) {
cron := newWithSeconds()
cron.Start()
ctx := cron.Stop()
select {
case <-ctx.Done():
case <-time.After(time.Millisecond):
t.Error("context was not done immediately")
}
})
t.Run("repeated calls to Stop", func(t *testing.T) {
cron := newWithSeconds()
cron.Start()
_ = cron.Stop()
time.Sleep(time.Millisecond)
ctx := cron.Stop()
select {
case <-ctx.Done():
case <-time.After(time.Millisecond):
t.Error("context was not done immediately")
}
})
t.Run("a couple fast jobs added, still returns immediately", func(t *testing.T) {
cron := newWithSeconds()
cron.AddFunc("* * * * * *", func() {})
cron.Start()
cron.AddFunc("* * * * * *", func() {})
cron.AddFunc("* * * * * *", func() {})
cron.AddFunc("* * * * * *", func() {})
time.Sleep(time.Second)
ctx := cron.Stop()
select {
case <-ctx.Done():
case <-time.After(time.Millisecond):
t.Error("context was not done immediately")
}
})
t.Run("a couple fast jobs and a slow job added, waits for slow job", func(t *testing.T) {
cron := newWithSeconds()
cron.AddFunc("* * * * * *", func() {})
cron.Start()
cron.AddFunc("* * * * * *", func() { time.Sleep(2 * time.Second) })
cron.AddFunc("* * * * * *", func() {})
time.Sleep(time.Second)
ctx := cron.Stop()
// Verify that it is not done for at least 750ms
select {
case <-ctx.Done():
t.Error("context was done too quickly immediately")
case <-time.After(750 * time.Millisecond):
// expected, because the job sleeping for 1 second is still running
}
// Verify that it IS done in the next 500ms (giving 250ms buffer)
select {
case <-ctx.Done():
// expected
case <-time.After(1500 * time.Millisecond):
t.Error("context not done after job should have completed")
}
})
t.Run("repeated calls to stop, waiting for completion and after", func(t *testing.T) {
cron := newWithSeconds()
cron.AddFunc("* * * * * *", func() {})
cron.AddFunc("* * * * * *", func() { time.Sleep(2 * time.Second) })
cron.Start()
cron.AddFunc("* * * * * *", func() {})
time.Sleep(time.Second)
ctx := cron.Stop()
ctx2 := cron.Stop()
// Verify that it is not done for at least 1500ms
select {
case <-ctx.Done():
t.Error("context was done too quickly immediately")
case <-ctx2.Done():
t.Error("context2 was done too quickly immediately")
case <-time.After(1500 * time.Millisecond):
// expected, because the job sleeping for 2 seconds is still running
}
// Verify that it IS done in the next 1s (giving 500ms buffer)
select {
case <-ctx.Done():
// expected
case <-time.After(time.Second):
t.Error("context not done after job should have completed")
}
// Verify that ctx2 is also done.
select {
case <-ctx2.Done():
// expected
case <-time.After(time.Millisecond):
t.Error("context2 not done even though context1 is")
}
// Verify that a new context retrieved from stop is immediately done.
ctx3 := cron.Stop()
select {
case <-ctx3.Done():
// expected
case <-time.After(time.Millisecond):
t.Error("context not done even when cron Stop is completed")
}
})
}
func TestJobWithCustomPrev(t *testing.T) {
cron := New()
var calls int64
// running every 3s, but starting 2s in the past
// expected timeline: 1s ... 4s ... stop (2 calls)
// if prev was ignored, the func would only be called once (at 3s)
cron.AddFunc("@every 3s", func() { atomic.AddInt64(&calls, 1) }, WithPrev(time.Now().Add(-2*time.Second)))
cron.Start()
time.Sleep(5 * time.Second)
if atomic.LoadInt64(&calls) != 2 {
t.Errorf("called %d times, expected 2\n", calls)
}
}
func TestMultiThreadedStartAndStop(t *testing.T) {
cron := New()
go cron.Run()
time.Sleep(2 * time.Millisecond)
cron.Stop()
}
func TestCron_UpdateSchedule(t *testing.T) {
executionInterval := func(entry Entry) time.Duration {
// To get a more accurate measurement of the execution interval, finding the time
// difference between the next execution time and the one that follows.
next := entry.Next
return entry.Schedule.Next(next).Sub(next)
}
checkNoError := func(err error) {
if err != nil {
t.Error(err)
}
}
testScheduleUpdateBeforeStartingCronJob := func(usingSpecString bool) {
oldSpec := "?/10 * * * * *"
newSpec := "?/5 * * * * *"
cron := New(WithSeconds())
id, err := cron.AddFunc(oldSpec, func() {})
checkNoError(err)
executionIntervalOldSpec := executionInterval(cron.Entries()[0])
// Updating schedule.
if usingSpecString {
checkNoError(cron.UpdateScheduleWithSpec(id, newSpec))
} else {
newSpecSchedule, err := cron.parser.Parse(newSpec)
checkNoError(err)
checkNoError(cron.UpdateSchedule(id, newSpecSchedule))
}
executionIntervalNewSpec := executionInterval(cron.Entries()[0])
if executionIntervalOldSpec.Seconds() != (executionIntervalNewSpec.Seconds() * 2) {
t.Fatal("failed to update schedule")
}
}
testScheduleUpdateAfterStartingCronJob := func(usingSpecString bool) {
oldSpec := "@every 50s"
newSpec := "@every 5s"
cron := New(WithSeconds())
executionCounterOldSpec := int64(0)
executionCounterNewSpec := int64(0)
updated := make(chan struct{})
id, err := cron.AddFunc(oldSpec, func() {
select {
case <-updated:
atomic.AddInt64(&executionCounterNewSpec, 1)
default:
atomic.AddInt64(&executionCounterOldSpec, 1)
}
})
checkNoError(err)
cron.Start()
select {
case <-time.After(5 * time.Second):
// Notifying the job to increment executionCounterNewSpec.
close(updated)
if usingSpecString {
// Updating schedule.
checkNoError(cron.UpdateScheduleWithSpec(id, newSpec))
} else {
newSpecSchedule, err := cron.parser.Parse(newSpec)
checkNoError(err)
checkNoError(cron.UpdateSchedule(id, newSpecSchedule))
}
}
// Allow at least 1 execution of the job.
select {
case <-time.After(10 * time.Second):
cron.Stop()
}
// Given the old schedule (old spec), the job should not have executed
// at all.
if atomic.LoadInt64(&executionCounterOldSpec) != 0 {
t.Fatal("job ran sooner than it was supposed to")
}
// With the updated schedule (new spec), the job should have executed