Change the testing function name.

tests/islandora_derivatives_test.module

@@ -23,7 +23,7 @@ function islandora_derivatives_test_some_cmodel_islandora_derivative() {
       'destination_dsid' => 'STANLEY',
       'weight' => '-1',
       'function' => array(
-        'islandora_derivatives_test_create_some_stanley_datastream',
+        'islandora_derivatives_test_create_stanley_datastream',
       ),
     ),
     array(
@@ -88,7 +88,7 @@ function islandora_derivatives_test_create_deriv_datastream(AbstractObject $obje
  * @param bool $force
  *   Whether the derivatives are being forcefully generated or not.
  */
-function islandora_derivatives_test_create_some_stanley_datastream(AbstractObject $object, $force = FALSE) {
+function islandora_derivatives_test_create_stanley_datastream(AbstractObject $object, $force = FALSE) {
   global $_islandora_derivative_test_derivative_functions;
   // Add to the global that we got to this function.
   $_islandora_derivative_test_derivative_functions[] = 'islandora_derivatives_test_create_some_weird_datastream';