You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: reqfamily_test.go
    path of file: ./repos/turn/internal/proto
    
    the code of the file until where you have to start completion: // SPDX-FileCopyrightText: 2023 The Pion community <https://pion.ly>
// SPDX-License-Identifier: MIT

package proto

import (
	"errors"
	"testing"

	"github.com/pion/stun/v2"
)

func TestRequeste
    
func TestRequestedAddressFamily(t *testing.T) {
	t.Run("String", func(t *testing.T) {
		if RequestedFamilyIPv4.String() != "IPv4" {
			t.Errorf("bad string %q, expected %q", RequestedFamilyIPv4,
				"IPv4",
			)
		}
		if RequestedFamilyIPv6.String() != "IPv6" {
			t.Errorf("bad string %q, expected %q", RequestedFamilyIPv6,
				"IPv6",
			)
		}
		if RequestedAddressFamily(0x04).String() != "unknown" {
			t.Error("should be unknown")
		}
	})
	t.Run("NoAlloc", func(t *testing.T) {
		m := &stun.Message{}
		if wasAllocs(func() {
			// On stack.
			r := RequestedFamilyIPv4
			r.AddTo(m) //nolint
			m.Reset()
		}) {
			t.Error("Unexpected allocations")
		}

		r := new(RequestedAddressFamily)
		*r = RequestedFamilyIPv4
		if wasAllocs(func() {
			// On heap.
			r.AddTo(m) //nolint
			m.Reset()
		}) {
			t.Error("Unexpected allocations")
		}
	})
	t.Run("AddTo", func(t *testing.T) {
		m := new(stun.Message)
		r := RequestedFamilyIPv4
		if err := r.AddTo(m); err != nil {
			t.Error(err)
		}
		m.WriteHeader()
		t.Run("GetFrom", func(t *testing.T) {
			decoded := new(stun.Message)
			if _, err := decoded.Write(m.Raw); err != nil {
				t.Fatal("failed to decode message:", err)
			}
			var req RequestedAddressFamily
			if err := req.GetFrom(decoded); err != nil {
				t.Fatal(err)
			}
			if req != r {
				t.Errorf("Decoded %q, expected %q", req, r)
			}
			if wasAllocs(func() {
				r.GetFrom(decoded) //nolint
			}) {
				t.Error("Unexpected allocations")
			}
			t.Run("HandleErr", func(t *testing.T) {
				m := new(stun.Message)
				var handle RequestedAddressFamily
				if err := handle.GetFrom(m); !errors.Is(err, stun.ErrAttributeNotFound) {
					t.Errorf("%v should be not found", err)
				}
				m.Add(stun.AttrRequestedAddressFamily, []byte{1, 2, 3})
				if !stun.IsAttrSizeInvalid(handle.GetFrom(m)) {
					t.Error("IsAttrSizeInvalid should be true")
				}
				m.Reset()
				m.Add(stun.AttrRequestedAddressFamily, []byte{5, 0, 0, 0})
				if handle.GetFrom(m) == nil {
					t.Error("should error on invalid value")
				}
			})
		})
	})
}