public void Update_Should_Call_UnitOfWork_And_Repository()
{
// Act
_ = _productsProvider.Update(new ProductEntity());
// Assert
_unitOfWorkMock.Verify(x => x.Repository <ProductEntity>(), Times.Once());
_repositoryMock.Verify(x => x.Attach(It.IsAny <ProductEntity>()), Times.Once());
_unitOfWorkMock.Verify(x => x.SaveChanges(), Times.Once());
}