public function setUp()
{
$this->tearDown();
$this->output = $this->prophesize(OutputInterface::class);
$this->timeUnit = new TimeUnit(TimeUnit::MICROSECONDS, TimeUnit::MILLISECONDS);
$this->benchmark = $this->prophesize(Benchmark::class);
$this->subject = $this->prophesize(Subject::class);
$this->iteration = $this->prophesize(Iteration::class);
$this->variant = $this->prophesize(Variant::class);
}