Inheritance: implements PhpBench\Formatter\FormatInterface
 /**
  * It should convert the time.
  */
 public function testTimeFormatConvert()
 {
     $format = new TimeUnitFormat(new TimeUnit());
     $result = $format->format(2000, ['unit' => 'seconds', 'mode' => 'throughput', 'precision' => 6, 'resolve' => []]);
     $this->assertEquals('500.000000ops/s', $result);
 }