public function testToFromArray()
 {
     $mockGender = "male";
     $this->sut->setGender($mockGender);
     $array = $this->sut->toArray();
     $new = new FacebookDemographicTargeting($array);
     $this->assertEquals($this->sut, $new);
     $this->assertEquals($mockGender, $new->getGender());
 }