public function testModel()
{
/* @var LayoutTranslationInterface $translation */
$translation = $this->getMockBuilder(LayoutTranslationInterface::class)->getMock();
$layout = new Layout();
$layout->setTranslationDomain('domain');
$this->assertTrue(is_array($layout->getMails()));
$this->assertTrue(is_array($layout->getTranslations()));
$this->assertCount(0, $layout->getTranslations());
$layout->addTranslation($translation);
$this->assertCount(1, $layout->getTranslations());
$layout->removeTranslation($translation);
$this->assertCount(0, $layout->getTranslations());
$this->assertSame('domain', $layout->getTranslationDomain());
}