diff --git a/includes/derivatives.inc b/includes/derivatives.inc
index 47ec4fad..8a36512e 100644
--- a/includes/derivatives.inc
+++ b/includes/derivatives.inc
@@ -21,25 +21,29 @@ function islandora_run_derivatives(AbstractObject $object, $dsid) {
     islandora_derivative_logging($logging_results);
   }
   else {
-    batch_set(
-      // Title won't show for batch in a batch.
+    $operations = islandora_do_batch_derivatives(
+      $object,
       array(
-        'init_message' => t('Preparing derivatives for @label', array('@label' => $object->label)),
-        'error_message' => t('An error occured creating derivatives.'),
-        'progress_message' => t(
-          'Creating derivatives for @label <br/>Time elapsed: @elapsed <br/>
-            Estimated time remaining @estimate.',
-          array('@label' => $object->label)
-        ),
-        'file' => drupal_get_path('module', 'islandora') . '/includes/regenerate_derivatives.form.inc',
-        'operations' => islandora_do_batch_derivatives(
-          $object,
-          array(
-            'source_dsid' => $dsid,
-          )
-        ),
+        'source_dsid' => $dsid,
       )
     );
+    if ($operations) {
+      batch_set(
+      // Title won't show for batch in a batch.
+        array(
+          'init_message' => t('Preparing derivatives for @label', array('@label' => $object->label)),
+          'error_message' => t('An error occured creating derivatives.'),
+          'progress_message' => t(
+            'Creating derivatives for @label <br/>Time elapsed: @elapsed <br/>
+              Estimated time remaining @estimate.',
+            array('@label' => $object->label)
+          ),
+          'file' => drupal_get_path('module', 'islandora') . '/includes/regenerate_derivatives.form.inc',
+          'operations' => $operations,
+          'finished' => 'islandora_regenerate_derivative_batch_finished',
+        )
+      );
+    }
   }
 }
 
diff --git a/tests/includes/datastream_validators.inc b/tests/includes/datastream_validators.inc
index 49c090e5..4768e989 100644
--- a/tests/includes/datastream_validators.inc
+++ b/tests/includes/datastream_validators.inc
@@ -48,7 +48,7 @@ function islandora_hex2int($hex) {
  * Abstraction for datastream validators.
  *
  * Classes extended from DatastreamValidator don't require much to be useful.
- * They accept an IslandoraFedoraObject and a DSID to perform assertions on;
+ * They accept a Fedora object and a DSID to perform assertions on;
  * all you have to do is place a series of functions inside the extended class
  * using the naming convention assertThing(); each of these functions should
  * ideally assert one thing and one thing only (for simplicity's sake), and
@@ -67,9 +67,9 @@ function islandora_hex2int($hex) {
 abstract class DatastreamValidator extends IslandoraTestUtilityClass {
 
   /**
-   * The IslandoraFedoraObject containing the datastream to test.
+   * The Fedora object containing the datastream to test.
    *
-   * @var IslandoraFedoraObject
+   * @var IslandoraFedoraObject|FedoraObject
    */
   public $object;
 
@@ -97,14 +97,14 @@ abstract class DatastreamValidator extends IslandoraTestUtilityClass {
   /**
    * Constructs a DatastreamValidator.
    *
-   * @param IslandoraFedoraObject $object
+   * @param IslandoraFedoraObject|FedoraObject $object
    *   The object to grab the datastream from.
    * @param string $datastream
    *   The DSID of the datastream itself.
    * @param array $params
    *   An extra array of parameters the validator might need.
    */
-  public function __construct(IslandoraFedoraObject $object, $datastream, array $params = array()) {
+  public function __construct($object, $datastream, array $params = array()) {
     $this->object = $object;
     $this->datastream = $datastream;
     $this->params = $params;
@@ -343,7 +343,7 @@ class TextDatastreamValidator extends DatastreamValidator {
   /**
    * Constructor override; blow up if we don't have our two values.
    */
-  public function __construct(IslandoraFedoraObject $object, $datastream, array $params = array()) {
+  public function __construct($object, $datastream, array $params = array()) {
     if (count($params) < 2) {
       throw new InvalidArgumentException('$params must contain at least two values to instantiate a TextDatastreamValidator.');
     }
@@ -386,14 +386,14 @@ class WAVDatastreamValidator extends DatastreamValidator {
   /**
    * We need a special constructor here to get the hex datastream content.
    *
-   * @param IslandoraFedoraObject $object
+   * @param IslandoraFedoraObject|FedoraObject $object
    *   The object to grab the datastream from.
    * @param string $datastream
    *   The DSID of the datastream itself.
    * @param array $params
    *   An extra array of parameters the validator might need.
    */
-  public function __construct(IslandoraFedoraObject $object, $datastream, array $params = array()) {
+  public function __construct($object, $datastream, array $params = array()) {
     parent::__construct($object, $datastream, $params);
     $this->datastreamContent = bin2hex($this->datastreamContent);
   }
diff --git a/tests/includes/utilities.inc b/tests/includes/utilities.inc
index e0672fd8..e0682397 100644
--- a/tests/includes/utilities.inc
+++ b/tests/includes/utilities.inc
@@ -261,17 +261,9 @@ class IslandoraTestUtilities extends IslandoraTestUtilityClass {
   public function __construct($configuration, array $params = array()) {
     $this->configuration = $configuration;
     $this->params = $params;
-    // If we have DB access, we want to use the Islandora Tuque wrappers.
-    if ($params['db_access']) {
-      $connection = islandora_get_tuque_connection();
-      $this->repository = $connection->repository;
-    }
-    // Otherwise, get a generic Tuque repository.
-    else {
-      $connection = new RepositoryConnection($this->configuration['fedora_url'], $this->configuration['admin_user'], $this->configuration['admin_pass']);
-      $api = new FedoraApi($connection);
-      $this->repository = new FedoraRepository($api, new SimpleCache());
-    }
+    $connection = new RepositoryConnection($this->configuration['fedora_url'], $this->configuration['admin_user'], $this->configuration['admin_pass']);
+    $api = new FedoraApi($connection);
+    $this->repository = new FedoraRepository($api, new SimpleCache());
   }
 
   /**
@@ -317,9 +309,9 @@ class IslandoraTestUtilities extends IslandoraTestUtilityClass {
    * Asserts that the given datastreams exist correctly on the object.
    *
    * @param AbstractObject $object
-   *   The PID of the object
+   *   The object to check.
    * @param array $datastreams
-   *   An array of strings containing datastream names
+   *   An array of strings containing datastream names.
    *
    * @return bool
    *   TRUE on success, FALSE on fail.
@@ -341,6 +333,30 @@ class IslandoraTestUtilities extends IslandoraTestUtilityClass {
     }
   }
 
+  /**
+   * Asserts that the given datastreams do not exist on the object.
+   *
+   * @param AbstractObject $object
+   *   The object to check.
+   * @param array $datastreams
+   *   An array of datastreams to confirm not present.
+   */
+  public function assertNoDatastreams($object, array $datastreams) {
+    if (!is_object($object)) {
+      $this->addResult(FALSE, "Failed. Object passed in is invalid.", 'Islandora');
+      return;
+    }
+    $found_datastreams = array_intersect_key(array_flip($datastreams), $object->repository->api->a->listDatastreams($object->id));
+
+    if (!empty($found_datastreams)) {
+      $this->addResult(FALSE, "Found unwanted datastream(s)" . implode(', ', array_flip($found_datastreams)) . " in object {$object->id}.");
+      return FALSE;
+    }
+
+    $this->addResult(TRUE, "Unwanted datastream(s) not found in object {$object->id}");
+    return TRUE;
+  }
+
   /**
    * Attempts to validate an array of datastreams, generally via binary checks.
    *