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package netns
import (
"runtime"
"sync"
"testing"
)
func TestGetNewSetDelete(t *testing.T) {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
origns, err := Get()
if err != nil {
t.Fatal(err)
}
newns, err := New()
if err != nil {
t.Fatal(err)
}
if origns.Equal(newns) {
t.Fatal("New ns failed")
}
if err := Set(origns); err != nil {
t.Fatal(err)
}
newns.Close()
if newns.IsOpen() {
t.Fatal("newns still open after close", newns)
}
ns, err := Get()
if err != nil {
t.Fatal(err)
}
if !ns.Equal(origns) {
t.Fatal("Reset ns failed", origns, newns, ns)
}
}
func TestNone(t *testing.T) {
ns := None()
if ns.IsOpen() {
t.Fatal("None ns is open", ns)
}
}
func TestThreaded(t *testing.T) {
ncpu := runtime.GOMAXPROCS(-1)
if ncpu < 2 {
t.Skip("-cpu=2 or larger required")
}
// Lock this thread simply to ensure other threads get used.
runtime.LockOSThread()
defer runtime.UnlockOSThread()
wg := &sync.WaitGroup{}
for i := 0; i < ncpu; i++ {
wg.Add(1)
go func() {
defer wg.Done()
TestGetNewSetDelete(t)
}()
}
wg.Wait()
}
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