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: main_test.go
    path of file: ./repos/liftbridge
    
    the code of the file until where you have to start completion: package main

import (
	"reflect"
	"testing"
)

func TestNormalizeNatsServers(t *testing.T) {
	testCases := []struct {
		testCase    string
		natsServers []string
		want        []string
	}{
		{
			"No servers (should not happen but test it anyway)",
			nil,
			nil,
		},
		{
			"Single server no spaces",
			[]string{"nats://localhost:9876"},
			[]string{"nats://localhost:9876"},
		},
		{
			"Single server with spaces",
			[]string{" nats://localhost:9876  "},
			[]string{"nats://localhost:9876"},
		},
		{
			"2 instances of --nats-servers",
			[]string{"nats://localhost:9876", "nats://localhost:6789"},
			[]string{"nats://localhost:9876", "nats://localhost:6789"},
		},
		{
			"2 instances of --nats-servers with leading+trailing spaces",
			[]string{" nats://localhost:9876    ", "  nats://localhost:6789 "},
			[]string{"nats://localhost:9876", "nats://localhost:6789"},
		},
		{
			"Single instance of --nats-servers with multiple servers, no spaces",
			[]string{"nats://localhost:3434,nats://localhost:2121"},
			[]string{"nats://localhost:3434", "nats://localhost:2121"},
		},
		{
			"Single instance of --nats-servers with multiple servers and spaces",
			[]string{"  nats://localhost:1111,    nats://localhost:2222  ,nats://localhost:3333"},
			[]string{"nats://localhost:1111", "nats://localhost:2222", "nats://localhost:3333"},
		},
		{
			"Multiple instances of --nats-servers with multiple servers and spaces",
			[]string{"nats://localhost:9999", " nats://localhost:8888  ,   nats://localhost:7777  ,nats://localhost:6666 ", "    nats://localhost:5555        "},
			[]string{"nats://localhost:9999", "nats://localhost:8888", "nats://localhost:7777", "nats://localhost:6666", "nats://localhost:5555"},
		},
	}
	for _, tc := range testCases {
		t.Run(tc.testCase, func(t *testing.T) {
			natsServers, err := normalizeNatsServers(tc.natsServers)
			if err != nil
    
func TestNormalizeNatsServers(t *testing.T) {
	testCases := []struct {
		testCase    string
		natsServers []string
		want        []string
	}{
		{
			"No servers (should not happen but test it anyway)",
			nil,
			nil,
		},
		{
			"Single server no spaces",
			[]string{"nats://localhost:9876"},
			[]string{"nats://localhost:9876"},
		},
		{
			"Single server with spaces",
			[]string{" nats://localhost:9876  "},
			[]string{"nats://localhost:9876"},
		},
		{
			"2 instances of --nats-servers",
			[]string{"nats://localhost:9876", "nats://localhost:6789"},
			[]string{"nats://localhost:9876", "nats://localhost:6789"},
		},
		{
			"2 instances of --nats-servers with leading+trailing spaces",
			[]string{" nats://localhost:9876    ", "  nats://localhost:6789 "},
			[]string{"nats://localhost:9876", "nats://localhost:6789"},
		},
		{
			"Single instance of --nats-servers with multiple servers, no spaces",
			[]string{"nats://localhost:3434,nats://localhost:2121"},
			[]string{"nats://localhost:3434", "nats://localhost:2121"},
		},
		{
			"Single instance of --nats-servers with multiple servers and spaces",
			[]string{"  nats://localhost:1111,    nats://localhost:2222  ,nats://localhost:3333"},
			[]string{"nats://localhost:1111", "nats://localhost:2222", "nats://localhost:3333"},
		},
		{
			"Multiple instances of --nats-servers with multiple servers and spaces",
			[]string{"nats://localhost:9999", " nats://localhost:8888  ,   nats://localhost:7777  ,nats://localhost:6666 ", "    nats://localhost:5555        "},
			[]string{"nats://localhost:9999", "nats://localhost:8888", "nats://localhost:7777", "nats://localhost:6666", "nats://localhost:5555"},
		},
	}
	for _, tc := range testCases {
		t.Run(tc.testCase, func(t *testing.T) {
			natsServers, err := normalizeNatsServers(tc.natsServers)
			if err != nil {
				t.Fatalf("returned error: %#v", tc)
			}
			if !reflect.DeepEqual(natsServers, tc.want) {
				t.Fatalf("\n  wanted: %#v\n     got: %#v", tc.want, natsServers)
			}
		})
	}
}