73 lines
1.6 KiB
Go
73 lines
1.6 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: BUSL-1.1
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package helper
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import (
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"testing"
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"time"
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"github.com/shoenig/test/must"
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)
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func Test_Backoff(t *testing.T) {
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const MaxUint = ^uint64(0)
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const MaxInt = int64(MaxUint >> 1)
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cases := []struct {
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name string
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backoffBase time.Duration
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backoffLimit time.Duration
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attempt uint64
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expectedResult time.Duration
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}{
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{
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name: "backoff limit clamps for high base",
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backoffBase: time.Hour,
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backoffLimit: time.Minute,
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attempt: 1,
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expectedResult: time.Minute,
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},
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{
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name: "backoff limit clamps for boundary attempt",
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backoffBase: time.Hour,
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backoffLimit: time.Minute,
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attempt: 63,
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expectedResult: time.Minute,
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},
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{
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name: "small retry value",
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backoffBase: time.Minute,
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backoffLimit: time.Hour,
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attempt: 0,
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expectedResult: time.Minute,
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},
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{
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name: "first retry value",
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backoffBase: time.Minute,
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backoffLimit: time.Hour,
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attempt: 1,
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expectedResult: 2 * time.Minute,
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},
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{
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name: "fifth retry value",
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backoffBase: time.Minute,
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backoffLimit: time.Hour,
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attempt: 5,
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expectedResult: 32 * time.Minute,
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},
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{
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name: "sixth retry value",
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backoffBase: time.Minute,
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backoffLimit: time.Hour,
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attempt: 6,
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expectedResult: time.Hour,
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},
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}
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for _, tc := range cases {
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result := Backoff(tc.backoffBase, tc.backoffLimit, tc.attempt)
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must.Eq(t, tc.expectedResult, result)
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}
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}
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