public async Task AddQuiz_ModelIsValid_ReturnObjctResult()
{
_repository.Setup(x => x.AddQuiz(It.IsAny <QuizInformation>()));
var result = await _controller.AddQuiz(new QuizInformation()
{
CategoryId = Guid.NewGuid(),
Description = "Xyz",
ImageUrl = "https://www.example.pl",
Name = "xyz",
UserId = Guid.NewGuid()
});
result.Should().BeOfType <OkObjectResult>();
}