github.com/darmach/terratest@v0.34.8-0.20210517103231-80931f95e3ff/test/terraform_backend_example_test.go (about)

     1  package test
     2  
     3  import (
     4  	"fmt"
     5  	"strings"
     6  	"testing"
     7  
     8  	"github.com/gruntwork-io/terratest/modules/aws"
     9  	"github.com/gruntwork-io/terratest/modules/random"
    10  	"github.com/gruntwork-io/terratest/modules/terraform"
    11  	"github.com/stretchr/testify/require"
    12  )
    13  
    14  // An example of how to test the Terraform module in examples/terraform-backend-example using Terratest.
    15  func TestTerraformBackendExample(t *testing.T) {
    16  	t.Parallel()
    17  
    18  	awsRegion := aws.GetRandomRegion(t, nil, nil)
    19  	uniqueId := random.UniqueId()
    20  
    21  	// Create an S3 bucket where we can store state
    22  	bucketName := fmt.Sprintf("test-terraform-backend-example-%s", strings.ToLower(uniqueId))
    23  	defer cleanupS3Bucket(t, awsRegion, bucketName)
    24  	aws.CreateS3Bucket(t, awsRegion, bucketName)
    25  
    26  	key := fmt.Sprintf("%s/terraform.tfstate", uniqueId)
    27  	data := fmt.Sprintf("data-for-test-%s", uniqueId)
    28  
    29  	// Deploy the module, configuring it to use the S3 bucket as an S3 backend
    30  	terraformOptions := terraform.WithDefaultRetryableErrors(t, &terraform.Options{
    31  		TerraformDir: "../examples/terraform-backend-example",
    32  		Vars: map[string]interface{}{
    33  			"foo": data,
    34  		},
    35  		BackendConfig: map[string]interface{}{
    36  			"bucket": bucketName,
    37  			"key":    key,
    38  			"region": awsRegion,
    39  		},
    40  	})
    41  
    42  	defer terraform.Destroy(t, terraformOptions)
    43  	terraform.InitAndApply(t, terraformOptions)
    44  
    45  	// Check a state file actually got stored and contains our data in it somewhere (since that data is used in an
    46  	// output of the Terraform code)
    47  	contents := aws.GetS3ObjectContents(t, awsRegion, bucketName, key)
    48  	require.Contains(t, contents, data)
    49  
    50  	// The module doesn't really *do* anything, so we just check a dummy output here and move on
    51  	foo := terraform.OutputRequired(t, terraformOptions, "foo")
    52  	require.Equal(t, data, foo)
    53  }
    54  
    55  func cleanupS3Bucket(t *testing.T, awsRegion string, bucketName string) {
    56  	aws.EmptyS3Bucket(t, awsRegion, bucketName)
    57  	aws.DeleteS3Bucket(t, awsRegion, bucketName)
    58  }