How to find the test a data provider is providing data to?

Inside a PHPUnit testcase with two or more tests using the same @dataProvider, I want the provider to find out, which test it is providing data to. I have accomplished this using debug_backtrace(), but this feels wrong. Does PHPUnit provide another more standard way to achieve this? In case yes, how?

<?php

class MyTest extends \PHPUnit_Framework_TestCase {

    /** @dataProvider dataProvider */
    public function testA () {}

    /** @dataProvider dataProvider */
    public function testB () {}

    public function dataProvider () {

        $trace = debug_backtrace(false, 3);
        $caller = $trace[2]['args'][2];

        // $caller === 'testA' or $caller === 'testB'
    }
}