/**
* @magentoAppIsolation enabled
*/
public function testAddError()
{
$customGroup = 'custom-group';
$this->model->addError('some text');
$this->model->addError('some text 2', $customGroup);
$this->assertEquals(1, $this->model->getMessages()->getCount());
$this->assertEquals(1, $this->model->getMessages()->getCountByType(MessageInterface::TYPE_ERROR));
$this->assertEquals(0, $this->model->getMessages()->getCountByType(MessageInterface::TYPE_WARNING));
$this->assertEquals(0, $this->model->getMessages()->getCountByType(MessageInterface::TYPE_NOTICE));
$this->assertEquals(0, $this->model->getMessages()->getCountByType(MessageInterface::TYPE_SUCCESS));
$this->assertEquals('some text', $this->model->getMessages()->getLastAddedMessage()->getText());
$this->assertEquals(1, $this->model->getMessages(false, $customGroup)->getCount());
$this->assertEquals('some text 2', $this->model->getMessages(false, $customGroup)->getLastAddedMessage()->getText());
}