diff --git a/tests/mocks/database/db.php b/tests/mocks/database/db.php
new file mode 100644
index 0000000..d7a6351
--- /dev/null
+++ b/tests/mocks/database/db.php
@@ -0,0 +1,43 @@
+<?php
+
+class Mock_Database_DB {
+
+	private $config = array();
+	
+	/**
+	 * Prepare database configuration skeleton
+	 *
+	 * @param  array 	DB configuration to set
+	 * @return void
+	 */
+	public function __construct($config = array())
+	{
+		include_once(BASEPATH.'database/DB.php');
+
+		$this->config = $config;
+	}
+
+	public function set_config($group = 'default')
+	{
+		if ( ! isset($this->config[$group]))
+		{
+			throw new InvalidArgumentException('Group '.$group.' not exists');
+		}
+
+		if ( ! empty($this->config[$group]['dsn']))
+		{
+			$dsn = $this->config[$group]['dsn'];
+		}
+		else
+		{
+			$config = $this->config[$group];
+			$dsn = $config['dbdriver'].'://'.$config['username'].':'.$config['password']
+			       .'@'.$config['hostname'].'/'.$config['database'];
+
+		}
+
+		$params = array_slice($this->config[$group], 6);
+
+		return $dsn.http_build_query($params);
+	}
+}
\ No newline at end of file