public async Task ReaderService_DeleteByIdAsync_DeleteModel()
{
//arrange
int readerId = 1;
var mockUnitOfWork = new Mock <IUnitOfWork>();
mockUnitOfWork.Setup(m => m.ReaderRepository.DeleteByIdAsync(It.IsAny <int>()));
var readerService = new ReaderService(mockUnitOfWork.Object, UnitTestHelper.CreateMapperProfile());
//act
await readerService.DeleteByIdAsync(readerId);
//assert
mockUnitOfWork.Verify(x => x.ReaderRepository.DeleteByIdAsync(readerId), Times.Once);
mockUnitOfWork.Verify(x => x.SaveAsync(), Times.Once);
}