final class PresentationTest extends TestCase
{
/**
* @test
*/
public function presentationsShouldAllowNewSubtitles(): void
{
$actual = new Presentation('With', 'a', 'title');
$expectation = new Presentation('With', 'another', 'title');
$actual->changeSubtitleTo('another');
$this->assertEquals($expectation, $actual);
}
}