gistfile1.php

<?php

class Foo
{
    public static function dataProvider()
    {
        return array(array('foo'));
    }
}

?>

<?php

class Test extends PHPUnit_Framework_TestCase
{

    /**
     * @dataProvider Foo::dataProvider
     */
    public function testDataprovider($data)
    {
        var_dump($data);
    }
}