public async void Delete()
        {
            Mock <ILogger <IllustrationRepository> > loggerMoc = IllustrationRepositoryMoc.GetLoggerMoc();
            ApplicationDbContext context = IllustrationRepositoryMoc.GetContext();
            var          repository      = new IllustrationRepository(loggerMoc.Object, context);
            Illustration entity          = new Illustration();

            context.Set <Illustration>().Add(entity);
            await context.SaveChangesAsync();

            await repository.Delete(entity.IllustrationID);

            Illustration modifiedRecord = await context.Set <Illustration>().FirstOrDefaultAsync();

            modifiedRecord.Should().BeNull();
        }