anchor.diff:  `, rnd)
   }
   
  -func testAccDataprocCluster_withAccelerators(rnd, acceleratorType string) string {
  +func testAccDataprocCluster_withAccelerators(rnd, acceleratorType, zone string) string {
   	return fmt.Sprintf(`
   resource "google_dataproc_cluster" "accelerated_cluster" {
     name   = "dproc-cluster-test-%s"
     region = "us-central1"
   
     cluster_config {
  +    gce_cluster_config {
  +      zone = "%s"
  +    }
  +
       master_config {
         accelerators {
           accelerator_type  = "%s"
  
positive.code:     }
    }
  }
  `, rnd, acceleratorType, acceleratorType)
  }
  
  func testAccDataprocCluster_withInternalIpOnlyTrue(rnd string) string {
  
negative.code: 
  	project := getTestProjectFromEnv()
  	acceleratorType := "nvidia-tesla-k80"
  	zone := "us-central1-c"
  
  	resource.Test(t, resource.TestCase{
  		PreCheck:     func() { testAccPreCheck(t) },
  		Providers:    testAccProviders,
  		CheckDestroy: testAccCheckDataprocClusterDestroy(),
  		Steps: []resource.TestStep{
  			{
  				Config: testAccDataprocCluster_withAccelerators(rnd, acceleratorType, zone),
  				Check: resource.ComposeTestCheckFunc(
  					testAccCheckDataprocClusterExists("google_dataproc_cluster.accelerated_cluster", &cluster),
  					testAccCheckDataprocClusterAccelerator(&cluster, project, 1, 1),
  