github.com/livekit/protocol@v1.16.1-0.20240517185851-47e4c6bba773/utils/hedge_test.go (about)

     1  // Copyright 2023 LiveKit, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package utils
    16  
    17  import (
    18  	"context"
    19  	"testing"
    20  	"time"
    21  
    22  	"github.com/stretchr/testify/require"
    23  	"go.uber.org/atomic"
    24  )
    25  
    26  func TestHedgeCall(t *testing.T) {
    27  	var attempts atomic.Uint32
    28  	res, err := HedgeCall(context.Background(), HedgeParams[uint32]{
    29  		Timeout:     200 * time.Millisecond,
    30  		RetryDelay:  50 * time.Millisecond,
    31  		MaxAttempts: 2,
    32  		Func: func(context.Context) (uint32, error) {
    33  			n := attempts.Add(1)
    34  			time.Sleep(75 * time.Millisecond)
    35  			return n, nil
    36  		},
    37  	})
    38  	require.NoError(t, err)
    39  	require.EqualValues(t, 1, res)
    40  	require.EqualValues(t, 2, attempts.Load())
    41  }