Add env var for index type test

docs/acc-test-environment-variables.md

@@ -79,6 +79,7 @@ Environment variables (beyond standard AWS Go SDK ones) used by acceptance testi
 | `QUICKSIGHT_NAMESPACE` | QuickSight namespace name for testing. |
 | `QUICKSIGHT_ATHENA_TESTING_ENABLED` | Enable QuickSight tests dependent on Amazon Athena resources. |
 | `ROUTE53DOMAINS_DOMAIN_NAME` | Registered domain for Route 53 Domains testing. |
+| `RESOURCEEXPLORER_INDEX_TYPE` | Index Type for Resource Explorer 2 Search datasource testing. |
 | `SAGEMAKER_IMAGE_VERSION_BASE_IMAGE` | SageMaker base image to use for tests. |
 | `SERVICEQUOTAS_INCREASE_ON_CREATE_QUOTA_CODE` | Quota Code for Service Quotas testing (submits support case). |
 | `SERVICEQUOTAS_INCREASE_ON_CREATE_SERVICE_CODE` | Service Code for Service Quotas testing (submits support case). |

internal/service/resourceexplorer2/search_data_source_test.go

@@ -5,6 +5,7 @@ package resourceexplorer2_test
 
 import (
 	"fmt"
+	"os"
 	"testing"
 
 	sdkacctest "github.com/hashicorp/terraform-plugin-testing/helper/acctest"
@@ -47,6 +48,9 @@ func testAccSearchDataSource_basic(t *testing.T) {
 // Can only be run once a day as changing the index type has a 24 hr cooldown
 func testAccSearchDataSource_IndexType(t *testing.T) {
 	ctx := acctest.Context(t)
+	if os.Getenv("RESOURCEEXPLORER_INDEX_TYPE") != "AGGREGATOR" {
+		t.Skip("Environment variable RESOURCEEXPLORER_INDEX_TYPE is not set to AGGREGATOR. Before setting this environment variable and running this test, ensure no tests with a LOCAL index type also need to run. Changing the index type will trigger a cool down period of 24 hours.")
+	}
 	if testing.Short() {
 		t.Skip("skipping long-running test in short mode")
 	}