Scientist\Laboratory::experiment PHP Метод

    public function experiment($name)
    {
        return new Experiment($name, $this);
    }

 public function test_that_running_experiment_with_zero_chance_executes_control()
 {
     $l = new Laboratory();
     $v = $l->experiment('test experiment')->control(function () {
         return 'foo';
     })->chance(0)->run();
     $this->assertEquals('foo', $v);
 }