use reflect deepeq

plugin/path_config_test.go

@@ -2,7 +2,6 @@ package gcpauth
 
 import (
 	"context"
-	"fmt"
 	"reflect"
 	"testing"
 
@@ -39,10 +38,26 @@ func TestBackend_PathConfigRead(t *testing.T) {
 		if len(resp.Data) != 2 {
 			t.Fatal("expected 2 fields")
 		}
-		if fmt.Sprintf("%s", resp.Data["iam_metadata"]) != "[project_id role service_account_id service_account_email]" {
+		if !reflect.DeepEqual(resp.Data["iam_metadata"], []string{
+			"project_id",
+			"role",
+			"service_account_id",
+			"service_account_email",
+		}) {
 			t.Fatalf("expected the default iam_metadata but received %s", resp.Data["iam_metadata"])
 		}
-		if fmt.Sprintf("%s", resp.Data["gce_metadata"]) != "[instance_creation_timestamp instance_id instance_name project_id project_number role service_account_id service_account_email zone]" {
+
+		if !reflect.DeepEqual(resp.Data["gce_metadata"], []string{
+			"instance_creation_timestamp",
+			"instance_id",
+			"instance_name",
+			"project_id",
+			"project_number",
+			"role",
+			"service_account_id",
+			"service_account_email",
+			"zone",
+		}) {
 			t.Fatalf("expected the default gce_metadata but received %s", resp.Data["gce_metadata"])
 		}
 	})