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: config_test.go
    path of file: ./repos/istio/tools/istio-iptables/pkg/config
    
    the code of the file until where you have to start completion: // Copyright Istio Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package config

import (
	"net"
	"net/netip"
	"testing"
)

var tesrLocalIPAddrs = func(ips []netip.Addr) ([]net.Addr, error) {
	var IPAddrs []net.Addr
	for i := 0; i < len(ips); i++ {
		var ipAddr net.Addr
		ipNetAddr := &net.IPNet{IP: net.ParseIP(ips[i].String())}
		ipAddr = ipNetAddr
		IPAddrs = append(IPAddrs, ipAddr)
	}
	return IPAddrs, nil
}

func TestGetLocalIP(t *testing.T) {
	tests := []struct {
		name     string
		lipas    func() ([]net.Addr, error)
		isDS     bool
		expected bool
	}{
		{
			name: "ipv4 only local ip addresses",
			lipas: func() ([]net.Addr, error) {
				return tesrLocalIPAddrs([]netip.Addr{
					netip.MustParseAddr("127.0.0.1"),
					netip.MustParseAddr("1.2.3.5"),
				})
			},
			isDS:     false,
			expected: false,
		},
		{
			name: "ipv6 only local ip addresses",
			lipas: func() ([]net.Addr, error) {
				return tesrLoca
    
func TestGetLocalIP(t *testing.T) {
	tests := []struct {
		name     string
		lipas    func() ([]net.Addr, error)
		isDS     bool
		expected bool
	}{
		{
			name: "ipv4 only local ip addresses",
			lipas: func() ([]net.Addr, error) {
				return tesrLocalIPAddrs([]netip.Addr{
					netip.MustParseAddr("127.0.0.1"),
					netip.MustParseAddr("1.2.3.5"),
				})
			},
			isDS:     false,
			expected: false,
		},
		{
			name: "ipv6 only local ip addresses",
			lipas: func() ([]net.Addr, error) {
				return tesrLocalIPAddrs([]netip.Addr{
					netip.MustParseAddr("::1"),
					netip.MustParseAddr("2222:3333::1"),
				})
			},
			isDS:     false,
			expected: true,
		},
		{
			name: "mixed ipv4 and ipv6 local ip addresses",
			lipas: func() ([]net.Addr, error) {
				return tesrLocalIPAddrs([]netip.Addr{
					netip.MustParseAddr("::1"),
					netip.MustParseAddr("127.0.0.1"),
					netip.MustParseAddr("1.2.3.5"),
					netip.MustParseAddr("2222:3333::1"),
				})
			},
			isDS:     false,
			expected: false,
		},

		{
			name: "mixed ipv4 and ipv6 local ip addresses with dual stack enable",
			lipas: func() ([]net.Addr, error) {
				return tesrLocalIPAddrs([]netip.Addr{
					netip.MustParseAddr("::1"),
					netip.MustParseAddr("127.0.0.1"),
					netip.MustParseAddr("1.2.3.5"),
					netip.MustParseAddr("2222:3333::1"),
				})
			},
			isDS:     true,
			expected: true,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			LocalIPAddrs = tt.lipas
			_, isV6, err := getLocalIP(tt.isDS)
			if err != nil {
				t.Errorf("getLocalIP err: %s", err)
			}
			if isV6 != tt.expected {
				t.Errorf("unexpected EnableInboundIPv6 result, expected: %t got: %t", tt.expected, isV6)
			}
		})
	}
}