github.com/cloudwego/hertz@v0.9.3/pkg/app/client/retry/retry_test.go (about)

     1  /*
     2   * Copyright 2022 CloudWeGo Authors
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   *     http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16  
    17  package retry
    18  
    19  import (
    20  	"math"
    21  	"testing"
    22  	"time"
    23  
    24  	"github.com/cloudwego/hertz/pkg/common/test/assert"
    25  )
    26  
    27  func TestApply(t *testing.T) {
    28  	delayPolicyFunc := func(attempts uint, err error, retryConfig *Config) time.Duration {
    29  		return time.Second
    30  	}
    31  	options := []Option{}
    32  	options = append(options, WithMaxAttemptTimes(100), WithInitDelay(time.Second),
    33  		WithMaxDelay(time.Second), WithDelayPolicy(delayPolicyFunc), WithMaxJitter(time.Second))
    34  
    35  	config := Config{}
    36  	config.Apply(options)
    37  
    38  	assert.DeepEqual(t, uint(100), config.MaxAttemptTimes)
    39  	assert.DeepEqual(t, time.Second, config.Delay)
    40  	assert.DeepEqual(t, time.Second, config.MaxDelay)
    41  	assert.DeepEqual(t, time.Second, Delay(0, nil, &config))
    42  	assert.DeepEqual(t, time.Second, config.MaxJitter)
    43  }
    44  
    45  func TestPolicy(t *testing.T) {
    46  	dur := DefaultDelayPolicy(0, nil, nil)
    47  	assert.DeepEqual(t, 0*time.Millisecond, dur)
    48  
    49  	config := Config{
    50  		Delay: time.Second,
    51  	}
    52  	dur = FixedDelayPolicy(0, nil, &config)
    53  	assert.DeepEqual(t, time.Second, dur)
    54  
    55  	dur = RandomDelayPolicy(0, nil, &config)
    56  	assert.DeepEqual(t, 0*time.Millisecond, dur)
    57  	config.MaxJitter = time.Second * 1
    58  	dur = RandomDelayPolicy(0, nil, &config)
    59  	assert.NotEqual(t, time.Second*1, dur)
    60  
    61  	dur = BackOffDelayPolicy(0, nil, &config)
    62  	assert.DeepEqual(t, time.Second*1, dur)
    63  	config.Delay = time.Duration(-1)
    64  	dur = BackOffDelayPolicy(0, nil, &config)
    65  	assert.DeepEqual(t, time.Second*0, dur)
    66  	config.Delay = time.Duration(1)
    67  	dur = BackOffDelayPolicy(63, nil, &config)
    68  	durExp := config.Delay << 62
    69  	assert.DeepEqual(t, durExp, dur)
    70  
    71  	dur = Delay(0, nil, &config)
    72  	assert.DeepEqual(t, 0*time.Millisecond, dur)
    73  	delayPolicyFunc := func(attempts uint, err error, retryConfig *Config) time.Duration {
    74  		return time.Second
    75  	}
    76  	config.DelayPolicy = delayPolicyFunc
    77  	config.MaxDelay = time.Second / 2
    78  	dur = Delay(0, nil, &config)
    79  	assert.DeepEqual(t, config.MaxDelay, dur)
    80  
    81  	delayPolicyFunc2 := func(attempts uint, err error, retryConfig *Config) time.Duration {
    82  		return time.Duration(math.MaxInt64)
    83  	}
    84  	delayFunc := CombineDelay(delayPolicyFunc2, delayPolicyFunc)
    85  	dur = delayFunc(0, nil, &config)
    86  	assert.DeepEqual(t, time.Duration(math.MaxInt64), dur)
    87  }