diff --git a/src/adapter/etl-adapter-doctrine/tests/Flow/ETL/Adapter/Doctrine/Tests/Integration/DbalLoaderTest.php b/src/adapter/etl-adapter-doctrine/tests/Flow/ETL/Adapter/Doctrine/Tests/Integration/DbalLoaderTest.php
index 5ecac7f2c..2d16e33f5 100644
--- a/src/adapter/etl-adapter-doctrine/tests/Flow/ETL/Adapter/Doctrine/Tests/Integration/DbalLoaderTest.php
+++ b/src/adapter/etl-adapter-doctrine/tests/Flow/ETL/Adapter/Doctrine/Tests/Integration/DbalLoaderTest.php
@@ -261,6 +261,51 @@ public function test_inserts_new_rows_or_updates_already_existed_based_on_primar
         );
     }
 
+    public function test_inserts_xml_entry() : void
+    {
+        $this->pgsqlDatabaseContext->createTable((new Table(
+            $table = 'flow_doctrine_bulk_test',
+            [
+                new Column('id', Type::getType(Types::INTEGER), ['notnull' => true]),
+                new Column('name', Type::getType(Types::STRING), ['notnull' => true, 'length' => 255]),
+                new Column('description', Type::getType(Types::STRING), ['notnull' => true, 'length' => 255]),
+            ],
+        ))
+            ->setPrimaryKey(['id']));
+
+        $loader = to_dbal_table_insert($this->connectionParams(), $table);
+
+        $documentA = new \DOMDocument();
+        $documentA->loadXml('Description One');
+
+        $documentB = new \DOMDocument();
+        $documentB->loadXml('Description Two');
+
+        $documentC = new \DOMDocument();
+        $documentC->loadXml('<b>Description Three</b>');
+
+        (data_frame())
+            ->read(
+                from_array([
+                    ['id' => 1, 'name' => 'Name One', 'description' => $documentA],
+                    ['id' => 2, 'name' => 'Name Two', 'description' => $documentB],
+                    ['id' => 3, 'name' => 'Name Three', 'description' => $documentC],
+                ]),
+            )
+            ->load($loader)
+            ->run();
+
+        self::assertEquals(3, $this->pgsqlDatabaseContext->tableCount($table));
+        self::assertEquals(
+            [
+                ['id' => 1, 'name' => 'Name One', 'description' => 'Description One'],
+                ['id' => 2, 'name' => 'Name Two', 'description' => 'Description Two'],
+                ['id' => 3, 'name' => 'Name Three', 'description' => '<b>Description Three</b>'],
+            ],
+            $this->pgsqlDatabaseContext->selectAll($table)
+        );
+    }
+
     public function test_update_multiple_rows_at_once() : void
     {
         $this->pgsqlDatabaseContext->createTable((new Table(
diff --git a/src/adapter/etl-adapter-json/tests/Flow/ETL/Adapter/JSON/Tests/Integration/JsonTest.php b/src/adapter/etl-adapter-json/tests/Flow/ETL/Adapter/JSON/Tests/Integration/JsonTest.php
index d969b272e..ec40ad3f9 100644
--- a/src/adapter/etl-adapter-json/tests/Flow/ETL/Adapter/JSON/Tests/Integration/JsonTest.php
+++ b/src/adapter/etl-adapter-json/tests/Flow/ETL/Adapter/JSON/Tests/Integration/JsonTest.php
@@ -9,12 +9,34 @@
 use function Flow\ETL\DSL\{average, df, from_array, overwrite, ref};
 use function Flow\ETL\DSL\{config, flow_context, rows};
 use function Flow\Filesystem\DSL\path;
+
 use Flow\ETL\Adapter\JSON\JsonLoader;
 use Flow\ETL\Tests\Double\FakeExtractor;
 use Flow\ETL\{Tests\FlowTestCase};
 
 final class JsonTest extends FlowTestCase
 {
+    public function test_domdocument_json_file() : void
+    {
+        $domDocument = new \DOMDocument();
+        $domDocument->loadXml('<b>red</b>');
+
+        df()
+            ->read(from_array([
+                ['id' => 1, 'descriptionHtml' => $domDocument, 'size' => 'small'],
+            ]))
+            ->saveMode(overwrite())
+            ->write(to_json($path = __DIR__ . '/var/test_domdocument.json'))
+            ->run();
+
+        self::assertStringContainsString(
+            <<<'JSON'
+[{"id":1,"descriptionHtml":"<b>red<\/b>","size":"small"}]
+JSON,
+            \file_get_contents($path)
+        );
+    }
+
     public function test_json_loader() : void
     {
         $path = __DIR__ . '/var/test_json_loader.json';
diff --git a/src/core/etl/tests/Flow/ETL/Tests/Integration/Function/DOMElementValueTest.php b/src/core/etl/tests/Flow/ETL/Tests/Integration/Function/DOMElementValueTest.php
index 41e9b4f25..de2ea7f63 100644
--- a/src/core/etl/tests/Flow/ETL/Tests/Integration/Function/DOMElementValueTest.php
+++ b/src/core/etl/tests/Flow/ETL/Tests/Integration/Function/DOMElementValueTest.php
@@ -4,11 +4,37 @@
 
 namespace Flow\ETL\Tests\Integration\Function;
 
-use function Flow\ETL\DSL\{df, from_rows, ref, row, rows, xml_element_entry, xml_entry};
+use function Flow\ETL\DSL\{df, from_rows, ref, row, rows, type_string, xml_element_entry, xml_entry};
+
 use Flow\ETL\Tests\FlowTestCase;
 
 final class DOMElementValueTest extends FlowTestCase
 {
+    public function test_dom_element_cast_as_string() : void
+    {
+        $document = new \DOMDocument();
+        $document->loadXml('<b>User Name 01</b>');
+
+        $rows = df()
+            ->read(from_rows(
+                rows(
+                    row(
+                        xml_entry('html_raw', $document)
+                    )
+                )
+            ))
+            ->withEntry('html', ref('html_raw')->cast(type_string()))
+            ->drop('html_raw')
+            ->fetch();
+
+        self::assertSame(
+            [
+                ['html' => '<b>User Name 01</b>'],
+            ],
+            $rows->toArray()
+        );
+    }
+
     public function test_dom_element_value() : void
     {
         $rows = df()
@@ -53,6 +79,31 @@ public function test_dom_element_value_from_dom_document() : void
         );
     }
 
+    public function test_dom_element_value_on_dom_document() : void
+    {
+        $document = new \DOMDocument();
+        $document->loadXml('<b>User Name 01</b>');
+
+        $rows = df()
+            ->read(from_rows(
+                rows(
+                    row(
+                        xml_entry('html_raw', $document)
+                    )
+                )
+            ))
+            ->withEntry('html', ref('html_raw')->domElementValue())
+            ->drop('html_raw')
+            ->fetch();
+
+        self::assertSame(
+            [
+                ['html' => '<b>User Name 01</b>'],
+            ],
+            $rows->toArray()
+        );
+    }
+
     public function test_dom_element_value_on_xpath_result() : void
     {
         $rows = df()