github.com/GoWebProd/gip@v0.0.0-20230623090727-b60d41d5d320/cond/cond_test.go (about)

     1  package cond
     2  
     3  import (
     4  	"sync"
     5  	"testing"
     6  	"time"
     7  )
     8  
     9  func TestSingle(t *testing.T) {
    10  	var (
    11  		c Single
    12  		v int
    13  	)
    14  
    15  	go func() {
    16  		time.Sleep(10 * time.Millisecond)
    17  
    18  		v = 1
    19  
    20  		c.Done()
    21  	}()
    22  
    23  	c.Wait()
    24  
    25  	if v != 1 {
    26  		t.Fatalf("bad value: %d", v)
    27  	}
    28  
    29  	c.Wait()
    30  }
    31  
    32  func TestMulti(t *testing.T) {
    33  	var (
    34  		c   Multi
    35  		v   int
    36  		wg  sync.WaitGroup
    37  		err bool
    38  	)
    39  
    40  	for i := 0; i < 100; i++ {
    41  		wg.Add(1)
    42  
    43  		go func() {
    44  			defer wg.Done()
    45  
    46  			c.Wait()
    47  
    48  			if v != 1 {
    49  				err = true
    50  			}
    51  		}()
    52  	}
    53  
    54  	time.Sleep(10 * time.Millisecond)
    55  
    56  	v = 1
    57  
    58  	c.Done()
    59  	wg.Wait()
    60  
    61  	if err {
    62  		t.Fatal("one of goroutines failed")
    63  	}
    64  
    65  	c.Wait()
    66  }