Godeps/_workspace/src/github.com/obscuren/qml/cdata/cdata_test.go


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42

package cdata

import (
    "runtime"
    "sync"
    "testing"
)

type refPair struct {
    ref1, ref2 uintptr
}

func TestRef(t *testing.T) {
    const N = 10
    runtime.LockOSThread()
    exit := sync.WaitGroup{}
    exit.Add(1)
    defer exit.Done()
    wg := sync.WaitGroup{}
    wg.Add(N)
    ch := make(chan refPair)
    for i := 0; i < N; i++ {
        go func() {
            runtime.LockOSThread()
            wg.Done()
            ch <- refPair{Ref(), Ref()}
            exit.Wait()
        }()
    }
    wg.Wait()
    refs := make(map[uintptr]bool)
    for i := 0; i < N; i++ {
        pair := <-ch
        if pair.ref1 != pair.ref2 {
            t.Fatalf("found inconsistent ref: %d != %d", pair.ref1, pair.ref2)
        }
        if refs[pair.ref1] {
            t.Fatalf("found duplicated ref: %d", pair.ref1)
        }
        refs[pair.ref1] = true
    }
}