public async Task Get_DeckThumbnail_WhenCalled_With_A_DeckId_Should_Return_FileContentResult()
{
// Arrange
const int deckId = 980;
_mediator.Send(Arg.Any <IRequest <DeckThumbnailImagePathQueryResult> >()).Returns(new DeckThumbnailImagePathQueryResult {
ContentType = "image/jpeg", Image = new byte[] { 1, 2, 3, 4, 5 }
});
// Act
var result = await _sut.DeckThumbnail(deckId);
// Assert
result.Should().BeOfType <FileContentResult>();
}