public function Test_of_actsAsNestedSet_instatiation()
{
$Categories = new NestedCategory();
$this->assertEqual($Categories->actsLike(), 'active record,nested set');
$this->assertEqual($Categories->nested_set->_parent_column_name, 'parent_id');
$this->assertEqual($Categories->nested_set->_left_column_name, 'lft');
$this->assertEqual($Categories->nested_set->_right_column_name, 'rgt');
$Categories = new NestedCategory();
$this->assertErrorPattern('/columns are required/', $Categories->actsAs('nested_set', array('parent_column' => 'not_available')));
$this->assertEqual($Categories->actsLike(), 'active record');
}
