opt in to new binary test driver

This commit enables the new binary test driver introduced in SDK v1.7.0 for all acceptance tests in this provider. No test results should change.

Please see hashicorp/terraform-plugin-sdk#262 for more details about this test driver.

random/provider_test.go

@@ -3,6 +3,8 @@ package random
 import (
 	"testing"
 
+	"github.com/hashicorp/terraform-plugin-sdk/acctest"
+	"github.com/hashicorp/terraform-plugin-sdk/helper/resource"
 	"github.com/hashicorp/terraform-plugin-sdk/helper/schema"
 	"github.com/hashicorp/terraform-plugin-sdk/terraform"
 )
@@ -29,3 +31,8 @@ func TestProvider_impl(t *testing.T) {
 
 func testAccPreCheck(t *testing.T) {
 }
+
+func TestMain(m *testing.M) {
+	acctest.UseBinaryDriver("random", Provider)
+	resource.TestMain(m)
+}