modified model classes with tests

tests/model/MyDbDriver.php

@@ -0,0 +1,60 @@
+<?php
+
+abstract class MyDbDriver extends DbDriver
+{
+    public function getInsertId($table = null, $key = null)
+    {
+        return true;
+    }
+
+    public function quoteIdentifier($param)
+    {
+        return $param;
+    }
+
+    public function quote($param)
+    {
+        return $param;
+    }
+
+    public function insert($table, $bind, $on_duplicate = array())
+    {
+        return $table;
+    }
+
+    public function update($table, $bind, $where = '')
+    {
+        return $table;
+    }
+
+    public function delete($table, $where = '')
+    {
+        return $table;
+    }
+
+    public function query($sql, $params = array())
+    {
+        $conf = array('driver' => 'MockDbDriver', 'hostname' => 'somehost', 'database' => 'db', 'username' => 'test', 'password' => '1234');
+        return new MockDbDriver($conf);
+    }
+
+    public function execute()
+    {
+        return true;
+    }
+
+    public function fetch()
+    {
+        return true;
+    }
+
+    public function fetchField($field)
+    {
+        return $field;
+    }
+
+    public function fetchAll()
+    {
+        return true;
+    }
+}