/**
  * @covers ::submitConfigurationForm
  */
 public function testSubmitConfigurationForm()
 {
     $values = ['page_title' => "Go hang a salami, I'm a lasagna hog!"];
     $form = [];
     $form_state = (new FormState())->setValues($values);
     $this->variant->submitConfigurationForm($form, $form_state);
     $property = new \ReflectionProperty($this->variant, 'configuration');
     $property->setAccessible(TRUE);
     $this->assertSame($values['page_title'], $property->getValue($this->variant)['page_title']);
 }