nettest
最后更新于：2022-04-02 02:46:53
[TOC]
## 语法
### Func
```
func LocalPath() (string, error)
func LoopbackInterface() (*net.Interface, error)
func MulticastSource(network string, ifi *net.Interface) (net.IP, error)
func NewLocalListener(network string) (net.Listener, error)
func NewLocalPacketListener(network string) (net.PacketConn, error)
func RoutedInterface(network string, flags net.Flags) (*net.Interface, error)
func SupportsIPv4() bool
func SupportsIPv6() bool
func SupportsRawSocket() bool
func TestConn(t *testing.T, mp MakePipe)
func TestableAddress(network, address string) bool
func TestableNetwork(network string) bool
```
## 实例
### NewLocalListener
```
// 底层就是 127.0.0.1:0 ,生成一个随机端口
listener, err := nettest.NewLocalListener("tcp")
if err != nil {
log.Fatal(err)
}
dial, err := net.Dial("tcp", listener.Addr().String())
dial.Write([]byte(`hello world`))
```
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