diff --git a/core/modules/text/lib/Drupal/text/Tests/TextWithSummaryItemTest.php b/core/modules/text/lib/Drupal/text/Tests/TextWithSummaryItemTest.php
new file mode 100644
index 0000000..0b5d574
--- /dev/null
+++ b/core/modules/text/lib/Drupal/text/Tests/TextWithSummaryItemTest.php
@@ -0,0 +1,181 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\text\Tests\TextSummaryItemTest..
+ */
+
+namespace Drupal\text\Tests;
+
+use Drupal\Core\Language\Language;
+use Drupal\Core\Entity\Field\FieldInterface;
+use Drupal\Core\Entity\Field\FieldItemInterface;
+use Drupal\field\Tests\FieldUnitTestBase;
+
+/**
+ * Tests the entity API for the taxonomy term reference field type.
+ */
+class TextWithSummaryItemTest extends FieldUnitTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = array('filter');
+
+  /**
+   * Field entity.
+   *
+   * @var \Drupal\field\Entity\Field.
+   */
+  protected $field;
+
+  /**
+   * Field instance.
+   *
+   * @var \Drupal\field\Entity\FieldInstance
+   */
+  protected $instance;
+
+
+  public static function getInfo() {
+    return array(
+      'name' => 'Text summary field item',
+      'description' => 'Tests using entity fields of the text summary field type.',
+      'group' => 'Field types',
+    );
+  }
+
+  public function setUp() {
+    parent::setUp();
+
+    $this->installSchema('entity_test', array('entity_test_rev', 'entity_test_rev_revision'));
+
+    // Create the necessary formats.
+    $this->installConfig(array('filter'));
+    entity_create('filter_format', array(
+      'format' => 'autop',
+      'filters' => array(
+        /*'filter_autop' => array(
+          'status' => 1,
+        ),*/
+      ),
+    ))->save();
+  }
+
+  /**
+   * Tests processed properties.
+   */
+  public function testCrudAndUpdate() {
+    $entity_type = 'entity_test';
+    $this->createField($entity_type);
+
+    // Create an entity with a summary and no text format.
+    $entity = entity_create($entity_type, array());
+    $entity->summary_field->value = $value = $this->randomName();
+    $entity->summary_field->summary = $summary = $this->randomName();
+    $entity->summary_field->format = NULL;
+    $entity->name->value = $this->randomName();
+    $entity->save();
+
+    $entity = entity_load($entity_type, $entity->id());
+    $this->assertTrue($entity->summary_field instanceof FieldInterface, 'Field implements interface.');
+    $this->assertTrue($entity->summary_field[0] instanceof FieldItemInterface, 'Field item implements interface.');
+    $this->assertEqual($entity->summary_field->value, $value);
+    $this->assertEqual($entity->summary_field->processed, $value);
+    $this->assertEqual($entity->summary_field->summary, $summary);
+    $this->assertEqual($entity->summary_field->summary_processed, $summary);
+    $this->assertNull($entity->summary_field->format);
+
+    // Enable text processing.
+    $this->instance->settings['text_processing'] = 1;
+    $this->instance->save();
+
+    // Re-load the entity.
+    $entity = entity_load($entity_type, $entity->id(), TRUE);
+
+    // Even if no format is given, if text processing is enabled, the default
+    // format is used.
+    $this->assertEqual($entity->summary_field->processed, "<p>$value</p>\n");
+    $this->assertEqual($entity->summary_field->summary_processed, "<p>$summary</p>\n");
+
+    // Change the format, this should update the processed properties.
+    $entity->summary_field->format = 'autop';
+    $this->assertEqual($entity->summary_field->processed, $value);
+    $this->assertEqual($entity->summary_field->summary_processed, $summary);
+  }
+
+  /**
+   * Creates a text_with_summary field and field instance.
+   *
+   * @param string $entity_type
+   *   Entity type for which the field should be created.
+   */
+  protected function createField($entity_type) {
+    // Create a field .
+    $this->field = entity_create('field_entity', array(
+      'name' => 'summary_field',
+      'entity_type' => $entity_type,
+      'type' => 'text_with_summary',
+      'settings' => array(
+        'max_length' => 10,
+      )
+    ));
+    $this->field->save();
+    $this->instance = entity_create('field_instance', array(
+      'field_name' => $this->field->name,
+      'entity_type' => $entity_type,
+      'bundle' => $entity_type,
+      'settings' => array(
+        'text_processing' => 0,
+      )
+    ));
+    $this->instance->save();
+  }
+
+  /**
+   * Tests that the processed values are cached.
+   */
+  function testProcessedCache() {
+     // Use an entity type that has caching enabled.
+     $entity_type = 'entity_test_rev';
+
+    $this->createField($entity_type);
+
+    // Create an entity with a summary and a text format.
+    $entity = entity_create($entity_type, array());
+    $entity->summary_field->value = $value = $this->randomName();
+    $entity->summary_field->summary = $summary = $this->randomName();
+    $entity->summary_field->format = 'plain_text';
+    $entity->name->value = $this->randomName();
+    $entity->save();
+
+    // Inject values into the cache to make sure that these are used as-is and
+    // not re-calculated.
+    $data = array(
+      'summary_field' => array(
+        Language::LANGCODE_DEFAULT => array(
+          0 => array(
+            'value' => $value,
+            'summary' => $summary,
+            'format' => 'plain_text',
+            'processed' => 'Cached processed value',
+            'summary_processed' => 'Cached summary processed value',
+          ),
+        ),
+      ),
+    );
+    cache('field')->set("field:$entity_type:" . $entity->id(), $data);
+
+    $entity = entity_load($entity_type, $entity->id());
+    $this->assertEqual($entity->summary_field->processed, 'Cached processed value');
+    $this->assertEqual($entity->summary_field->summary_processed, 'Cached summary processed value');
+
+    // Change the format, this should update the processed properties.
+    $entity->summary_field->format = 'autop';
+    $this->assertEqual($entity->summary_field->processed, $value);
+    $this->assertEqual($entity->summary_field->summary_processed, $summary);
+  }
+
+}