go.uber.org/yarpc@v1.72.1/x/yarpctest/repeat.go (about)

     1  // Copyright (c) 2022 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package yarpctest
    22  
    23  import (
    24  	"fmt"
    25  	"sync"
    26  	"testing"
    27  
    28  	"go.uber.org/yarpc/x/yarpctest/api"
    29  )
    30  
    31  // RepeatAction will call the provided action a set number of times (the action
    32  // must be idempotent).
    33  func RepeatAction(action Action, times int) api.Action {
    34  	return api.ActionFunc(func(t testing.TB) {
    35  		for i := 0; i < times; i++ {
    36  			action.Run(t)
    37  		}
    38  	})
    39  }
    40  
    41  // ConcurrentAction will call the provided action in n concurrent threads at the
    42  // same time.
    43  func ConcurrentAction(action Action, threads int) api.Action {
    44  	return api.ActionFunc(func(t testing.TB) {
    45  		var wg sync.WaitGroup
    46  		for i := 0; i < threads; i++ {
    47  			wg.Add(1)
    48  			go func(name string) {
    49  				api.Run(
    50  					name,
    51  					t,
    52  					func(t testing.TB) {
    53  						action.Run(t)
    54  					},
    55  				)
    56  				wg.Done()
    57  			}(fmt.Sprint(i))
    58  		}
    59  		wg.Wait()
    60  	})
    61  }