Add 'TestAccS3Object_DirectoryBucket_kmsSSE'.

internal/service/s3/object_test.go

@@ -1769,6 +1769,40 @@ func TestAccS3Object_DirectoryBucket_DefaultTags_providerOnly(t *testing.T) {
 	})
 }
 
+func TestAccS3Object_DirectoryBucket_kmsSSE(t *testing.T) {
+	ctx := acctest.Context(t)
+	var obj s3.GetObjectOutput
+	resourceName := "aws_s3_object.object"
+	rName := sdkacctest.RandomWithPrefix(acctest.ResourcePrefix)
+
+	source := testAccObjectCreateTempFile(t, "{anything will do }")
+	defer os.Remove(source)
+
+	resource.ParallelTest(t, resource.TestCase{
+		PreCheck:                 func() { acctest.PreCheck(ctx, t) },
+		ErrorCheck:               acctest.ErrorCheck(t, names.S3ServiceID),
+		ProtoV5ProviderFactories: acctest.ProtoV5ProviderFactories,
+		CheckDestroy:             testAccCheckObjectDestroy(ctx),
+		Steps: []resource.TestStep{
+			{
+				Config: testAccObjectConfig_directoryBucketKMSSSE(rName, source),
+				Check: resource.ComposeAggregateTestCheckFunc(
+					testAccCheckObjectExists(ctx, resourceName, &obj),
+					testAccCheckObjectSSE(ctx, resourceName, "aws:kms"),
+					testAccCheckObjectBody(&obj, "{anything will do }"),
+				),
+			},
+			{
+				ResourceName:            resourceName,
+				ImportState:             true,
+				ImportStateVerify:       true,
+				ImportStateVerifyIgnore: []string{names.AttrForceDestroy, "override_provider", names.AttrSource},
+				ImportStateIdFunc:       testAccObjectImportStateIdFunc(resourceName),
+			},
+		},
+	})
+}
+
 // https://github.com/hashicorp/terraform-provider-aws/issues/32385.
 func TestAccS3Object_prefix(t *testing.T) {
 	ctx := acctest.Context(t)
@@ -2945,6 +2979,22 @@ resource "aws_s3_object" "object" {
 `)
 }
 
+func testAccObjectConfig_directoryBucketKMSSSE(rName, source string) string {
+	return acctest.ConfigCompose(testAccBucketServerSideEncryptionConfigurationConfig_directoryBucket(rName), fmt.Sprintf(`
+resource "aws_s3_object" "object" {
+  bucket = aws_s3_directory_bucket.test.bucket
+  key    = "test-key"
+  source = %[1]q
+
+  override_provider {
+    default_tags {
+      tags = {}
+    }
+  }
+}
+`, source))
+}
+
 func testAccObjectConfig_prefix(rName string) string {
 	return fmt.Sprintf(`
 resource "aws_s3_bucket" "test" {