/**
  * @covers Xhprof::__construct
  * @covers Xhprof::stop
  * @covers Xhprof::getRawData
  * @dataProvider provideRawData
  */
 public function testRawData($flags, $keys)
 {
     $xhprof = new Xhprof(array('flags' => $flags));
     $raw = $xhprof->getRawData();
     $this->assertArrayHasKey('main()', $raw);
     foreach ($keys as $key) {
         $this->assertArrayHasKey($key, $raw['main()']);
     }
 }
 /**
  * Retrieve raw data from xhprof
  * @return array
  */
 public function getRawData()
 {
     return $this->xhprof->getRawData();
 }