Bolt\Session\Generator\RandomGenerator::generateId PHP Method

    public function generateId()
    {
        return $this->generator->generateString($this->length);
    }

 public function testGenerateId()
 {
     $app = $this->getApp();
     $fooFighters = new RandomGenerator($app['randomgenerator'], 42);
     $daveGrohl = $fooFighters->generateId();
     $this->assertNotSame('Nirvana', $daveGrohl);
     $this->assertSame(42, strlen($daveGrohl));
 }