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go-zero/core/retry/backoff/backoff_test.go

31 lines
596 B
Go

package backoff
import (
"testing"
"time"
"github.com/stretchr/testify/assert"
)
func TestWaitBetween(t *testing.T) {
fn := Interval(time.Second)
assert.EqualValues(t, time.Second, fn(1))
}
func TestExponential(t *testing.T) {
fn := Exponential(time.Second)
assert.EqualValues(t, time.Second, fn(1))
}
func TestLinearWithJitter(t *testing.T) {
const rounds = 1000000
var total time.Duration
fn := LinearWithJitter(time.Second, 0.5)
for i := 0; i < rounds; i++ {
total += fn(1)
}
// 0.1% tolerance
assert.True(t, total/time.Duration(rounds)-time.Second < time.Millisecond)
}