/**
  * @covers ::addCorsAllowedHeader()
  * @covers ::getCorsAllowedHeaders()
  */
 public function testaddCorsAllowedHeader()
 {
     $this->sut->addCorsAllowedHeader('my-test-header');
     $result = $this->sut->getCorsAllowedHeaders();
     $this->assertContains('my-test-header', $result);
 }