public function testSfGetBrothersArray__与えられたIDの兄弟要素だけが抽出される()
 {
     $input_array = array(array('parent_id' => '1001', 'child_id' => '1001001'), array('parent_id' => '1002', 'child_id' => '1002001'), array('parent_id' => '1002', 'child_id' => '1002002'), array('parent_id' => '1003', 'child_id' => '1003001'), array('parent_id' => '1004', 'child_id' => '1004001'));
     $this->expected = array('1002001', '1002002', '1004001');
     $this->actual = SC_Utils::sfGetBrothersArray($input_array, 'parent_id', 'child_id', array('1002001', '1004001'));
     $this->verify();
 }