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: terraform_redeploy_example_test.go
    path of file: ./repos/terratest/test
    
    the code of the file until where you have to start completion: package test

import (
	"crypto/tls"
	"fmt"
	"strings"
	"testing"
	"time"

	"github.com/gruntwork-io/terratest/modules/aws"
	http_helper "github.com/gruntwork-io/terratest/modules/http-helper"
	"github.com/gruntwork-io/terratest/modules/logger"
	"github.com/gruntwork-io/terratest/modules/random"
	"github.com/gruntwork-io/terratest/modules/retry"
	"github.com/gruntwork-io/terratest/modules/terraform"
	test_structure "github.com/gruntwork-io/terratest/modules/test-structure"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

// An example of how to test the Terraform module in examples/terraform-redeploy-e
    
func TestTerraformRedeployExample(t *testing.T) {
	t.Parallel()

	// The folder where we have our Terraform code
	workingDir := "../examples/terraform-redeploy-example"

	// Pick a random AWS region to test in. This helps ensure your code works in all regions.
	test_structure.RunTestStage(t, "pick_region", func() {
		awsRegion := aws.GetRandomStableRegion(t, nil, nil)
		// Save the region, so that we reuse the same region when we skip stages
		test_structure.SaveString(t, workingDir, "region", awsRegion)
	})

	// At the end of the test, clean up all the resources we created
	defer test_structure.RunTestStage(t, "teardown", func() {
		terraformOptions := test_structure.LoadTerraformOptions(t, workingDir)
		terraform.Destroy(t, terraformOptions)
	})

	// At the end of the test, fetch the logs from each Instance. This can be useful for
	// debugging issues without having to manually SSH to the server.
	defer test_structure.RunTestStage(t, "logs", func() {
		awsRegion := test_structure.LoadString(t, workingDir, "region")
		fetchSyslogForAsg(t, awsRegion, workingDir)
		fetchFilesFromAsg(t, awsRegion, workingDir)
	})

	// Deploy the web app
	test_structure.RunTestStage(t, "deploy_initial", func() {
		awsRegion := test_structure.LoadString(t, workingDir, "region")
		initialDeploy(t, awsRegion, workingDir)
	})

	// Validate that the ASG deployed and is responding to HTTP requests
	test_structure.RunTestStage(t, "validate_initial", func() {
		awsRegion := test_structure.LoadString(t, workingDir, "region")
		validateAsgRunningWebServer(t, awsRegion, workingDir)
	})

	// Validate that we can deploy a change to the ASG with zero downtime
	test_structure.RunTestStage(t, "validate_redeploy", func() {
		validateAsgRedeploy(t, workingDir)
	})
}