diff --git a/tests/models/company/CompanyEmployee.php b/tests/models/company/CompanyEmployee.php
new file mode 100644
index 000000000..dc365d306
--- /dev/null
+++ b/tests/models/company/CompanyEmployee.php
@@ -0,0 +1,41 @@
+<?php
+
+class CompanyEmployee extends Doctrine_Entity
+{
+    #protected $id;
+    #protected $salary;
+    #protected $department;
+    
+    public static function initMetadata($mapping)
+    {
+        // inheritance mapping
+        $mapping->setInheritanceType('joined', array(
+                'discriminatorColumn' => 'dtype',
+                'discriminatorMap' => array(
+                        'emp' => 'CompanyEmployee',
+                        'man' => 'CompanyManager')
+                ));
+        // register subclasses
+        $mapping->setSubclasses(array('CompanyManager'));
+        
+        $mapping->mapField(array(
+            'fieldName' => 'id',
+            'type' => 'integer',
+            'length' => 4,
+            'id' => true,
+            'idGenerator' => 'auto'
+        ));
+        $mapping->mapField(array(
+            'fieldName' => 'salary',
+            'type' => 'double'
+        ));
+        //TODO: make department an entity
+        $mapping->mapField(array(
+            'fieldName' => 'department',
+            'type' => 'string'
+        ));
+    }
+    
+}
+
+?>
\ No newline at end of file
diff --git a/tests/models/company/CompanyManager.php b/tests/models/company/CompanyManager.php
new file mode 100644
index 000000000..5e0c8a231
--- /dev/null
+++ b/tests/models/company/CompanyManager.php
@@ -0,0 +1,14 @@
+<?php
+
+class CompanyManager extends CompanyEmployee
+{
+    public static function initMetadata($mapping)
+    {
+        $mapping->mapColumn(array(
+            'fieldName' => 'title',
+            'type' => 'string'
+        ));
+    }
+}
+
+?>
\ No newline at end of file