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如何使用NUNit和NSubstitute執行單元測試,我想測試插入僞造的「GamaItem」對象並驗證它是否有效,以及SaveChanges是否已觸發。使用NUnit和NSubstitute對通用存儲庫進行單元測試
Im新的單元測試,我不知道如何僞造dbContext對象。
在此先感謝。
工作單元:
public class UnitOfWork: IUnitOfWork, IDisposable
{
private SRColorContext context = new SRColorContext();
private GenericEntityRepository<HairColorType> hairColorTypeRepository;
private GenericEntityRepository<GamaItem> gamaItemRepository;
public UnitOfWork()
{
if (context == null)
{
context = new SRColorContext();
}
}
public UnitOfWork(SRColorContext context)
{
this.context = context;
}
public GenericEntityRepository<HairColorType> HairColorTypeRepository
{
get
{
if (this.hairColorTypeRepository == null)
{
this.hairColorTypeRepository = new GenericEntityRepository<HairColorType>(context);
}
return hairColorTypeRepository;
}
}
public GenericEntityRepository<GamaItem> GamaItemRepository
{
get
{
if (this.gamaItemRepository == null)
{
this.gamaItemRepository = new GenericEntityRepository<GamaItem>(context);
}
return gamaItemRepository;
}
}
public void Save()
{
context.SaveChanges();
}
private bool disposed = false;
protected virtual void Dispose(bool disposing)
{
if (!this.disposed)
{
if (disposing)
{
context.Dispose();
}
}
this.disposed = true;
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
}
通用存儲庫:
public class GenericEntityRepository<TEntity> where TEntity : class
{
internal SRColorContext context;
internal DbSet<TEntity> dbSet;
public GenericEntityRepository(SRColorContext context)
{
this.context = context;
this.dbSet = context.Set<TEntity>();
}
public virtual IEnumerable<TEntity> Get(
Expression<Func<TEntity,bool>> filter = null,
Func<IQueryable<TEntity>, IOrderedQueryable<TEntity>> orderBy = null,
string includeProperties = "")
{
IQueryable<TEntity> query = dbSet;
if(filter != null)
{
query = query.Where(filter);
}
foreach (var includeProperty in includeProperties.Split
(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries))
{
query.Include(includeProperty);
}
if (orderBy != null)
{
return orderBy(query).ToList();
}
else
{
return query.ToList();
}
}
public virtual TEntity GetById(object id)
{
return dbSet.Find(id);
}
public virtual void Insert(TEntity entity)
{
dbSet.Add(entity);
}
public virtual void Delete(object id)
{
TEntity entityToDelete = dbSet.Find(id);
Delete(entityToDelete);
}
public virtual void Delete(TEntity entityToDelete)
{
if (context.Entry(entityToDelete).State == EntityState.Detached)
{
dbSet.Attach(entityToDelete);
}
dbSet.Remove(entityToDelete);
}
public virtual void Update(TEntity entityToUpdate)
{
dbSet.Attach(entityToUpdate);
context.Entry(entityToUpdate).State = EntityState.Modified;
}
}
測試基本上沒有任何保證。當從LINQ到SQL的轉換失敗時,大多數錯誤都會出現,並且一旦您開始使用類似的通用存儲庫,那麼這些錯誤將會在您的業務層發生。 – jgauffin