Neos\Flow\Reflection\ParameterReflection::getClass PHP Method

    public function getClass()
    {
        try {
            $class = parent::getClass();
        } catch (\Exception $exception) {
            return null;
        }
        return is_object($class) ? new ClassReflection($class->getName()) : null;
    }

 /**
  * @test
  */
 public function getClassReturnsFlowsClassReflection($dummy = null)
 {
     $parameter = new ParameterReflection([__CLASS__, 'fixtureMethod'], 'arg1');
     $this->assertInstanceOf(ClassReflection::class, $parameter->getClass());
 }