lithium\tests\cases\util\SetTest::testExtractWithNonSequentialKeys PHP Method

    public function testExtractWithNonSequentialKeys()
    {
        $nonSequential = array('User' => array(0 => array('id' => 1), 2 => array('id' => 2), 6 => array('id' => 3), 9 => array('id' => 4), 3 => array('id' => 5)));
        $expected = array(1, 2, 3, 4, 5);
        $result = Set::extract($nonSequential, '/User/id');
        $this->assertEqual($expected, $result);
    }