39 lines
1.1 KiB
Go
39 lines
1.1 KiB
Go
// Copyright 2023 PingCAP, Inc.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package backoff
|
|
|
|
import (
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
func TestExponential(t *testing.T) {
|
|
backoffer := NewExponential(1, 1, 1)
|
|
for i := 0; i < 10; i++ {
|
|
require.Equal(t, time.Duration(1), backoffer.Backoff(i))
|
|
}
|
|
backoffer = NewExponential(1, 1, 10)
|
|
for i := 0; i < 10; i++ {
|
|
require.Equal(t, time.Duration(1), backoffer.Backoff(i))
|
|
}
|
|
backoffer = NewExponential(1, 2, 10)
|
|
res := []time.Duration{1, 2, 4, 8, 10, 10, 10, 10, 10, 10}
|
|
for i := 0; i < 10; i++ {
|
|
require.Equal(t, res[i], backoffer.Backoff(i))
|
|
}
|
|
}
|