88 lines
1.6 KiB
Go
88 lines
1.6 KiB
Go
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// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information
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package sync2_test
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import (
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"context"
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"fmt"
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"sync/atomic"
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"testing"
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"time"
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"golang.org/x/sync/errgroup"
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"storj.io/storj/internal/sync2"
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)
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func TestCycle_Basic(t *testing.T) {
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ctx := context.Background()
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var inplace sync2.Cycle
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inplace.SetInterval(time.Second)
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var pointer = sync2.NewCycle(time.Second)
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for _, cycle := range []*sync2.Cycle{pointer, &inplace} {
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cycle := cycle
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t.Run("", func(t *testing.T) {
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defer cycle.Close()
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t.Parallel()
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count := int64(0)
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var group errgroup.Group
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start := time.Now()
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cycle.Start(ctx, &group, func(ctx context.Context) error {
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atomic.AddInt64(&count, 1)
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return nil
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})
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group.Go(func() error {
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defer cycle.Stop()
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const expected = 10
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cycle.Pause()
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startingCount := atomic.LoadInt64(&count)
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for i := 0; i < expected-1; i++ {
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cycle.Trigger()
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}
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cycle.TriggerWait()
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countAfterTrigger := atomic.LoadInt64(&count)
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change := countAfterTrigger - startingCount
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if expected != change {
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return fmt.Errorf("invalid triggers expected %d got %d", expected, change)
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}
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cycle.Restart()
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time.Sleep(3 * time.Second)
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countAfterRestart := atomic.LoadInt64(&count)
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if countAfterRestart == countAfterTrigger {
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return fmt.Errorf("cycle has not restarted")
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}
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return nil
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})
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err := group.Wait()
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if err != nil {
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t.Error(err)
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}
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testDuration := time.Since(start)
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if testDuration > 7*time.Second {
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t.Errorf("test took too long %v, expected approximately 3s", testDuration)
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}
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// shouldn't block
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cycle.Trigger()
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})
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}
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}
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