diff --git a/core/modules/jsonld/lib/Drupal/jsonld/Tests/DrupalJsonldNormalizerTest.php b/core/modules/jsonld/lib/Drupal/jsonld/Tests/DrupalJsonldNormalizerTest.php
new file mode 100644
index 0000000000000000000000000000000000000000..6eceb62cec29f9d75808802d7288b96e6f47c5fa
--- /dev/null
+++ b/core/modules/jsonld/lib/Drupal/jsonld/Tests/DrupalJsonldNormalizerTest.php
@@ -0,0 +1,82 @@
+<?php
+
+/**
+ * @file
+ * Definition of Drupal\jsonld\Tests\DrupalJsonldNormalizerTest.
+ */
+
+namespace Drupal\jsonld\Tests;
+
+use Drupal\jsonld\DrupalJsonldNormalizer;
+use Drupal\jsonld\Tests\JsonldNormalizerTestBase;
+
+/**
+ * Test the vendor specific JSON-LD normalizer.
+ */
+class DrupalJsonldNormalizerTest extends JsonldNormalizerTestBase {
+
+  public static function getInfo() {
+    return array(
+      'name' => 'Drupal JSON-LD Normalizer',
+      'description' => "Test Drupal's vendor specific JSON-LD normalizer.",
+      'group' => 'JSON-LD',
+    );
+  }
+
+  /**
+   * Add the normalizer to be tested.
+   */
+  function setUp() {
+    parent::setUp();
+
+    $this->normalizer = new DrupalJsonldNormalizer();
+  }
+
+  /**
+   * Implements Drupal\jsonld\Tests\JsonldNormalizerTestBase::getJsonldArray().
+   *
+   * @return array
+   *   Returns the expected JSON-LD array.
+   */
+  function getJsonldArray() {
+    $values = $this->testValues;
+    return array(
+      '@id' => $this->getEntityId(),
+      'name' => array(
+        LANGUAGE_NOT_SPECIFIED => array(
+          array(
+            'value' => $values['name'],
+          ),
+        ),
+      ),
+      'field_test_text' => array(
+        LANGUAGE_NOT_SPECIFIED => array(
+          array(
+            'value' => $values['field_test_text']['value'],
+            'format' => $values['field_test_text']['format'],
+          ),
+        ),
+      ),
+    );
+  }
+
+  /**
+   * Implements Drupal\jsonld\Tests\JsonldNormalizerTestBase::getSupportedFormat().
+   *
+   * @return string
+   *   Returns the format token.
+   */
+  protected function getSupportedFormat() {
+    return 'drupal_jsonld';
+  }
+
+  /**
+   * Implements Drupal\jsonld\Tests\JsonldNormalizerTestBase::getUnsupportedFormat().
+   *
+   * @return string
+   *   Returns the format token.
+   */
+  protected function getUnsupportedFormat() {
+    return 'jsonld';
+  }
+}
diff --git a/core/modules/jsonld/lib/Drupal/jsonld/Tests/JsonldNormalizerTest.php b/core/modules/jsonld/lib/Drupal/jsonld/Tests/JsonldNormalizerTest.php
new file mode 100644
index 0000000000000000000000000000000000000000..70b88c8af57ee2ed4136bff6e3e8ed9dc68bf263
--- /dev/null
+++ b/core/modules/jsonld/lib/Drupal/jsonld/Tests/JsonldNormalizerTest.php
@@ -0,0 +1,66 @@
+<?php
+
+/**
+ * @file
+ * Definition of Drupal\jsonld\Tests\JsonldNormalizerTest.
+ */
+
+namespace Drupal\jsonld\Tests;
+
+use Drupal\jsonld\JsonldNormalizer;
+use Drupal\jsonld\Tests\JsonldNormalizerTestBase;
+
+/**
+ * Test the default JSON-LD normalizer.
+ */
+class JsonldNormalizerTest extends JsonldNormalizerTestBase {
+
+  public static function getInfo() {
+    return array(
+      'name' => 'JSON-LD Normalizer',
+      'description' => "Test the JSON-LD normalizers.",
+      'group' => 'JSON-LD',
+    );
+  }
+
+  /**
+   * Add the normalizer to be tested.
+   */
+  function setUp() {
+    parent::setUp();
+
+    $this->normalizer = new JsonldNormalizer();
+  }
+
+  /**
+   * Implements Drupal\jsonld\Tests\JsonldNormalizerTestBase::getJsonldArray().
+   *
+   * @return array
+   *   Returns the expected JSON-LD array.
+   */
+  function getJsonldArray() {
+    return array(
+      '@id' => $this->getEntityId(),
+    );
+  }
+
+  /**
+   * Implements Drupal\jsonld\Tests\JsonldNormalizerTestBase::getSupportedFormat().
+   *
+   * @return string
+   *   Returns the format token.
+   */
+  protected function getSupportedFormat() {
+    return 'jsonld';
+  }
+
+  /**
+   * Implements Drupal\jsonld\Tests\JsonldNormalizerTestBase::getUnsupportedFormat().
+   *
+   * @return string
+   *   Returns the format token.
+   */
+  protected function getUnsupportedFormat() {
+    return 'drupal_jsonld';
+  }
+}
diff --git a/core/modules/jsonld/lib/Drupal/jsonld/Tests/JsonldNormalizerTestBase.php b/core/modules/jsonld/lib/Drupal/jsonld/Tests/JsonldNormalizerTestBase.php
new file mode 100644
index 0000000000000000000000000000000000000000..02a055d5dc61170b97dcf62d963537d478f0e11c
--- /dev/null
+++ b/core/modules/jsonld/lib/Drupal/jsonld/Tests/JsonldNormalizerTestBase.php
@@ -0,0 +1,147 @@
+<?php
+
+/**
+ * @file
+ * Definition of Drupal\jsonld\Tests\JsonldTestBase.
+ */
+
+namespace Drupal\jsonld\Tests;
+
+use Drupal\simpletest\WebTestBase;
+use Drupal\config\Tests\ConfigEntityTest;
+
+/**
+ * Parent class for JSON-LD tests.
+ */
+abstract class JsonldNormalizerTestBase extends WebTestBase {
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = array('entity_test');
+
+  /**
+   * The normalizer to be tested.
+   */
+  protected $normalizer;
+
+  /**
+   * An array of field values.
+   *
+   * @var array
+   */
+  protected $testValues;
+
+  /**
+   * An entity created from the values array.
+   *
+   * @var Drupal\Core\Entity\EntityNG
+   */
+  protected $testEntity;
+
+  /**
+   * Add the testValues and testEntity.
+   */
+  function setUp() {
+    parent::setUp();
+
+    // Set up test values to initialize entity with.
+    $this->testValues = array(
+      'name' => $this->randomName(),
+      'field_test_text' => array(
+        'value' => $this->randomName(),
+        'format' => 'full_html',
+      ),
+    );
+
+    // Create entity.
+    $this->testEntity = entity_create('entity_test', $this->testValues);
+    $this->testEntity->save();
+  }
+
+  /**
+   * Tests the supportsNormalization function.
+   */
+  public function testSupportsNormalization() {
+    $class = get_class($this->normalizer);
+    // Supported entity, supported format.
+    $this->assertTrue($this->normalizer->supportsNormalization($this->testEntity, $this->getSupportedFormat()), "$class::supportsNormalization returns TRUE for supported format.");
+    // Supported entity, unsupported format.
+    $this->assertFalse($this->normalizer->supportsNormalization($this->testEntity, $this->getUnsupportedFormat()), "$class::supportsNormalization returns FALSE for unsupported format.");
+    // Unsupported entity, supported format.
+    $unsupportedEntity = new ConfigEntityTest();
+    $this->assertFalse($this->normalizer->supportsNormalization($unsupportedEntity, $this->getSupportedFormat()), "$class::supportsNormalization returns FALSE for unsupported entity type.");
+  }
+
+  /**
+   * Tests the normalize function.
+   */
+  public function testNormalize() {
+    $class = get_class($this->normalizer);
+    $normalized = $this->normalizer->normalize($this->testEntity);
+    // Remove extraneous array elements and test that the normalized array
+    // matches the expected normalized array.
+    $normalized = $this->prepareNormalizedArray($normalized);
+    $this->assertEqual($normalized, $this->getJsonldArray(), "$class creates expected normalized array.");
+  }
+
+  /**
+   * Get the Entity ID.
+   *
+   * @return string
+   *   Return the entity URI.
+   */
+  protected function getEntityId() {
+    global $base_url;
+    $entity = $this->testEntity;
+    $uriInfo = $entity->uri();
+    return $base_url . '/' . $uriInfo['path'];
+  }
+
+  /**
+   * Prepare the array returned by normalize().
+   *
+   * Entity API and other modules add fields to the entity when it is saved,
+   * such as UUID and langcode. Don't test the functionality of those other
+   * modules here, remove extraneous fields from the array.
+   *
+   * @param array $normalized
+   *   Normalized array.
+   * 
+   * @return array
+   *   Returns the array with extraneous fields removed.
+   */
+  protected function prepareNormalizedArray($normalized) {
+    // Implemented JSON-LD syntax tokens.
+    $jsonldKeys = array('@id');
+    return array_intersect_key($normalized, array_merge($this->testValues, array_fill_keys($jsonldKeys, ' ')));
+  }
+
+  /**
+   * Get the array expected after normalization.
+   *
+   * This is declared as abstract because each normalizer will produce a
+   * differently structured array.
+   * 
+   * @return array
+   *   Returns the expected JSON-LD array.
+   */
+  abstract protected function getJsonldArray();
+
+  /**
+   * Get the supported format.
+   * 
+   * @return string
+   *   Returns the format token.
+   */
+  abstract protected function getSupportedFormat();
+
+  /**
+   * Get an unsupported format.
+   * 
+   * @return string
+   *   Returns the format token.
+   */
+  abstract protected function getUnsupportedFormat();
+}