commit ca12fb1f1f26000ecc101139cc89608cfbf25ba3
Author: Andy Postnikov <apostnikov@gmail.com>
Date:   Sun Apr 14 19:48:04 2013 +0400

    Converted FieldUnitTestBase

diff --git a/core/modules/field/lib/Drupal/field/Tests/FieldUnitTestBase.php b/core/modules/field/lib/Drupal/field/Tests/FieldUnitTestBase.php
index 3e1bf38..69488bc 100644
--- a/core/modules/field/lib/Drupal/field/Tests/FieldUnitTestBase.php
+++ b/core/modules/field/lib/Drupal/field/Tests/FieldUnitTestBase.php
@@ -58,7 +58,8 @@ function createFieldWithInstance($suffix = '') {
 
     $this->$field_name = drupal_strtolower($this->randomName() . '_field_name' . $suffix);
     $this->$field = array('field_name' => $this->$field_name, 'type' => 'test_field', 'cardinality' => 4);
-    $this->$field = field_create_field($this->$field);
+    $this->$field = entity_create('field_entity', $this->$field);
+    $this->$field->save();
     $this->$field_id = $this->{$field}['uuid'];
     $this->$instance = array(
       'field_name' => $this->$field_name,
@@ -78,7 +79,7 @@ function createFieldWithInstance($suffix = '') {
         )
       )
     );
-    field_create_instance($this->$instance);
+    entity_create('field_instance', $this->$instance);
   }
 
   /**