46 lines
1.2 KiB
Go
46 lines
1.2 KiB
Go
package job
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import (
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"testing"
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"time"
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"github.com/cenkalti/backoff/v4"
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)
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func TestJobBackOff(t *testing.T) {
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var (
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testInitialInterval = 500 * time.Millisecond
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testRandomizationFactor = 0.1
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testMultiplier = 2.0
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testMaxInterval = 5 * time.Second
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testMinJobInterval = 1 * time.Second
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)
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exp := NewBackOff(backoff.NewExponentialBackOff())
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exp.InitialInterval = testInitialInterval
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exp.RandomizationFactor = testRandomizationFactor
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exp.Multiplier = testMultiplier
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exp.MaxInterval = testMaxInterval
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exp.MinJobInterval = testMinJobInterval
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exp.Reset()
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expectedResults := []time.Duration{500, 500, 500, 1000, 2000, 4000, 5000, 5000, 500, 1000, 2000, 4000, 5000, 5000}
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for i, d := range expectedResults {
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expectedResults[i] = d * time.Millisecond
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}
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for i, expected := range expectedResults {
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// Assert that the next backoff falls in the expected range.
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minInterval := expected - time.Duration(testRandomizationFactor*float64(expected))
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maxInterval := expected + time.Duration(testRandomizationFactor*float64(expected))
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if i < 3 || i == 8 {
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time.Sleep(2 * time.Second)
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}
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actualInterval := exp.NextBackOff()
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if !(minInterval <= actualInterval && actualInterval <= maxInterval) {
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t.Error("error")
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}
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}
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}
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