54 lines
1.0 KiB
Go
54 lines
1.0 KiB
Go
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package media_test
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import (
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"context"
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"sync"
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"testing"
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"time"
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"git.netflux.io/rob/clipper/media"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"go.uber.org/zap"
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)
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func TestWorkerPool(t *testing.T) {
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ctx := context.Background()
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p := media.NewWorkerPool(2, 1, zap.NewNop().Sugar())
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p.Run()
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const taskCount = 4
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const dur = time.Millisecond * 100
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ch := make(chan error, taskCount)
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var wg sync.WaitGroup
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wg.Add(taskCount)
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for i := 0; i < taskCount; i++ {
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go func() {
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defer wg.Done()
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ch <- p.WaitForTask(ctx, func() error { time.Sleep(dur); return nil })
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}()
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}
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wg.Wait()
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close(ch)
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var okCount, errCount int
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for err := range ch {
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if err == nil {
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okCount++
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} else {
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errCount++
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require.EqualError(t, err, "worker queue full")
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}
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}
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// There can either be 1 or 2 failures, depending on whether a worker picks
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// up one job before the last one is added to the queue.
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ok := (okCount == 2 && errCount == 2) || (okCount == 3 && errCount == 1)
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assert.True(t, ok)
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}
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